WO2025230222A1 - Polarization system having different reflectivities toward both spaces - Google Patents
Polarization system having different reflectivities toward both spacesInfo
- Publication number
- WO2025230222A1 WO2025230222A1 PCT/KR2025/005576 KR2025005576W WO2025230222A1 WO 2025230222 A1 WO2025230222 A1 WO 2025230222A1 KR 2025005576 W KR2025005576 W KR 2025005576W WO 2025230222 A1 WO2025230222 A1 WO 2025230222A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- space
- polarization
- reflective
- light
- spaces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
Definitions
- the present invention relates to a polarization system having different reflectivities toward both spaces, and the present invention can produce various application examples and effects depending on the different reflectivities toward both spaces.
- a well-known application is when an investigative agency observes a subject in an interrogation room (second space) from an observation room (first space).
- the subject in the interrogation room (second space) cannot see the observation room (first space), but the observer in the observation room (first space) can observe the subject in the interrogation room (second space).
- the first space should be made dark to reduce the transmitted light coming from the first space to the second space, and the second space should be made bright with sunlight or lighting, etc., so that the reflected light reflected from the semi-reflective film should be strengthened by moving from the second space toward the semi-reflective film.
- the effect is lost, and conversely, the opposite effect may occur, where the second space is not visible from the first space and the first space is visible from the second space.
- This phenomenon is fundamentally a problem that occurs because the semi-reflective film installed at the boundary between the first and second spaces has the same transmittance and reflectance for light incident from both the first and second spaces.
- a method for solving or alleviating this problem is to develop a system that makes the reflectances of light incident from both the first and second spaces different while maintaining a relatively small optical loss and a good view from the first space to the second space.
- a system is developed that is located between the first and second spaces and makes the reflectances of light incident from the first and second spaces different.
- the reflectivity toward the first space can be made low and the reflectivity toward the second space can be made high.
- the influence of the reflected light reflected toward the first space becomes minimal, and the influence of the reflected light reflected toward the second space becomes large, so that when looking at the second space from the first space, the view is not obstructed by the reflected light, but when looking at the first space from the second space, the view may be obstructed by the reflected light, which may cause a line-of-sight blocking effect.
- letters, designs, etc. for decoration, advertisement, or information delivery installed on glass windows installed on the exterior walls of buildings can be colored to enhance aesthetics and increase visibility and advertising effects.
- a system that makes the reflectance toward the two spaces different can be applied so that the subject in the investigation room cannot see the observation room, but the investigator staying in the investigation room can see the observation room, and the observer in the observation room can observe the investigation room without being affected by the lighting of the investigation room.
- a system when a transparent solar power generation panel is installed on a window of an exterior wall of a building, a system is required that supplies light through reflection to the back of the transparent solar power generation panel in addition to the light supplied from the outside of the building to the transparent solar power generation panel, thereby increasing power generation efficiency, while ensuring that the view of the outside through the window from the inside of the building is not obstructed by reflected light.
- the present invention also satisfies these needs.
- the present invention provides a polarization system that can make the reflectance toward the two spaces between the two spaces that are objects of mutual viewing different from each other by utilizing the polarization phenomenon.
- the present invention can provide a polarization system that can make only the reflected light toward one space have a color while making the transmitted light not have a color (or have a small color) while making the reflectance toward both spaces different from each other.
- the present invention relates to a transparent solar power generation panel installed between a first space and a second space, and can provide a polarization system that increases the power generation efficiency of the transparent solar power generation panel while preventing the view of the outside through the transparent solar power generation panel from being obstructed by reflected light.
- the closest prior art related to the present invention is one that combines and installs a semi-reflective film and a dark-colored film at the boundary between the first space and the second space through which light is transmitted, and nothing more than that has been discovered.
- the purpose of the present invention is to provide a polarization system in which the reflectivity toward the two spaces between the first space and the second space, which are objects of mutual viewing, is different from each other by utilizing the polarization phenomenon.
- the present invention can create various applications and thus create various functions and effects.
- the present invention aims to provide a polarization system having different reflectances toward both spaces, which creates a view-blocking effect in which the view of the second space is not obstructed when looking at the second space from the first space, while conversely, the view of the first space is worsened when looking at the first space from the second space.
- the present invention aims to provide a polarization system with different reflectances toward both spaces, in which letters, designs, etc. for decoration, advertisement, or information delivery are installed toward both or either of the first and second spaces, so that the shape and reflection appear differently when looking at the second space from the first space and when looking at the first space from the second space, while the view looking at the second space from the first space is not obstructed.
- the present invention aims to provide a polarization system that can make the transmitted light appear colored when viewed from one space to another while making the reflectance toward the two spaces different from each other, and making the transmitted light not (or appear less colored).
- the present invention aims to provide a polarization system with different reflectances toward both spaces, which produces a certain level of visual blocking effect when looking at a first space from a second space by having reflected light colored, and conversely, when looking at a second space from the first space, the view of the second space is not obstructed (or is obstructed to a lesser extent).
- the present invention aims to provide a polarization system having different reflectances toward both spaces, which can obtain a unique effect in which letters, designs, etc. for decoration, advertisement, or information transmission are installed toward both or either of the first and second spaces, and the shape, reflection, and color appear different when the second space is viewed from the first space and when the first space is viewed from the second space.
- the present invention applies a polarization system having different reflectivities toward both spaces according to the present invention to observation rooms and investigation rooms used by investigative agencies, etc., and expands the function of the polarization system, thereby providing an observation room and an investigation room polarization system in which the subject of the investigation cannot see the observation room but the investigator of the investigation room can see the observation room, and the lighting of the investigation room is not visible to the observer of the observation room, so that the observer of the observation room can observe the investigation room well without being disturbed by the lighting of the investigation room.
- the present invention relates to a transparent solar power generation panel installed between a first space and a second space, and aims to provide a polarization system that increases the power generation efficiency of the transparent solar power generation panel while preventing the view from the first space to the second space through the transparent solar power generation panel from being obstructed by reflected light.
- the first aspect of the present invention is a first aspect of the present invention.
- a polarization system comprising a reflective polarization means and an absorbing polarization means, each of which is placed on a plane parallel to each other,
- the reflective polarizing means and the absorbing polarizing means are arranged relative to each other such that the reflective polarizing means is arranged on the side facing the second space and the absorbing polarizing means is arranged on the side facing the first space.
- the first space above is an object viewed by a person staying in the second space through the polarization system
- the above second space is an object viewed by a person staying in the above first space through the above polarization system.
- each of the reflective polarizing means and the absorptive polarizing means is such that the first reflectivity, which is the reflectivity for light departing from the first space toward the polarizing system and reflected from the polarizing system to the first space, and the second reflectivity, which is the reflectivity for light departing from the second space toward the polarizing system and reflected from the polarizing system to the second space, are different from each other, and a polarizing system is provided with different reflectivities toward both spaces.
- the angle formed between the directions of the respective transmission axes of the reflective polarizing means and the absorption polarizing means is within a range of +25° or -25° (including +25° and -25°) from 0° when the directions of the transmission axes are parallel.
- the angle formed between the directions of the respective transmission axes of the reflective polarizing means and the absorption polarizing means is within a range of +10° or -10° (including +10° and -10°) from 0° when the directions of the transmission axes are parallel.
- the angle formed between the directions of the transmission axes of the reflective polarizing means and the absorbing polarizing means is 0°, and the directions of the transmission axes of the reflective polarizing means and the absorbing polarizing means are parallel to each other.
- a means for transmitting light is located at the boundary between the first and second spaces.
- the above reflective polarizing means and the above absorption polarizing means can be arranged in the means through which the light transmits.
- the means through which the light passes is a medium through which the light passes and a medium whose surface is flat, and it is preferable that the reflective polarizing means and the absorptive polarizing means are arranged parallel to the medium through which the light passes.
- the first space is an internal space of a building
- the second space is an external space of the building
- the means for transmitting light may be a transparent window installed on an external wall of the building.
- the means through which the light transmits may be an empty space.
- the reflective polarizing means and the absorptive polarizing means may be attached to each other.
- the reflective polarizing means and the absorbing polarizing means can be attached to each other via a transparent adhesive layer, and the refractive index of the transparent adhesive layer has a value between the refractive index of the reflective polarizing means and the refractive index of the absorbing polarizing means.
- a reflective polarizing means having a direction of a reflection axis that is identical to the direction of a reflection axis projected (projected) onto the reflective light transmitting means along the reflected light, or
- An absorption-type polarizing means having an absorption axis direction that matches the direction of the reflection axis of the above-mentioned reflection-type polarizing means projected onto the reflection-light transmitting means along the reflected light.
- the reflective polarizing means or the absorption polarizing means installed in the reflective light transmitting means be attached to the reflective light transmitting means.
- the reflective light transmitting means may be a medium or empty space through which light is transmitted.
- the reflective polarizing means arranged on the side facing the second space is installed so that the direction of its reflection axis matches the polarization direction of the external reflected light to be removed that passes through the second space and is incident.
- the second space may be an investigation room
- the first space may be an observation room for observing the investigation room, which is the second space.
- the direction of the transmission axis of the polarizing means for investigation is identical to the direction of the transmission axes of the reflective polarizing means and the absorption polarizing means.
- the polarizing means for the investigation be installed in a frame in the form of glasses worn by the investigator.
- (b) further includes a lighting polarizing means installed between the lighting of the investigation room and the reflective polarizing means to block light emitted directly from the lighting of the investigation room to the reflective polarizing means;
- the above-mentioned polarizing means for lighting have a transmission axis that is identical to the direction of the reflection axis of the above-mentioned reflective polarizing means projected toward the above-mentioned polarizing means along the reverse path of the path of light irradiated toward the above-mentioned reflective polarizing means from the lighting of the above-mentioned room.
- one or both of the reflective polarizing means and the absorptive polarizing means have a specific shape for decoration, advertising or information transmission.
- the reflective polarizing means and the absorbing polarizing means are positioned so that when the reflective polarizing means and the absorbing flat polarizing means are viewed from the second space, one of them is positioned within the area of the other, or at least part of the other overlaps with the other.
- the polarization system having different reflectivities toward the two spaces according to the first aspect of the present invention further comprises a color film arranged on a plane parallel to the absorption-type polarization means on the side of the absorption-type polarization means facing the first space.
- the color film is attached to the absorption type polarizing means.
- the reflective polarizing means and the absorptive polarizing means may each be in the form of a film, a sheet or a plate.
- the present invention also provides:
- An observation room and investigation room system is provided, characterized in that the direction of the transmission axis of the polarizing means for investigation is identical to the direction of the transmission axis of the reflective polarizing means.
- the polarizing means for the investigation be installed on the lens of a frame in the form of glasses worn by the investigator.
- the present invention further provides:
- the above-mentioned lighting polarizing means provides an observation room and investigation room system characterized in that the direction of the reflection axis of the above-mentioned reflective polarizing means is coincident with the direction of the reflection axis projected toward the above-mentioned lighting polarizing means along the reverse path of the path of light irradiated toward the above-mentioned reflective polarizing means from the illumination of the above-mentioned investigation room.
- the surface of the absorptive polarizing film facing the first space is subjected to an anti-reflection treatment.
- the second aspect of the present invention is a first aspect of the present invention.
- a polarization system comprising a semi-reflective means and a circular polarizing means, each of which is placed on a plane parallel to each other,
- the first space above is an object viewed by a person staying in the second space through the polarization system
- the above second space is an object viewed by a person staying in the above first space through the above polarization system.
- a polarization system in which the reflectance toward both spaces is different, characterized in that the first reflectance, which is the reflectance for light departing from the first space toward the polarization system and reflected from the polarization system to the first space, and the second reflectance, which is the reflectance for light departing from the second space toward the polarization system and reflected from the polarization system to the second space, are different from each other.
- a means for transmitting light is positioned at the boundary between the first space and the second space, and that the semi-reflective means and the circular polarizing means are arranged on the means for transmitting light.
- the means through which the light passes is a medium through which the light passes and a medium whose surface is flat, and it is preferable that the semi-reflective means and the circular polarizing means are arranged parallel to the medium through which the light passes.
- the first space is an internal space of the building
- the second space is an external space of the building
- the medium through which light passes is a transparent window installed on the external wall of the building.
- the means through which the light transmits may be an empty space.
- the side of the semi-reflective means facing the circular polarization means has no birefringence, so that when light that has become circularly polarized after passing through the circular polarization means is incident and reflected, the direction of the circular polarization is reversed.
- the semi-reflective means does not have a protective layer on the side where circularly polarized light passing through the circularly polarizing film is incident and reflected, or a protective layer without birefringence is installed.
- the semi-reflective means and the circular polarizing means are attached to each other.
- the semi-reflective means and the circular polarizing means are attached to each other via a transparent adhesive layer, and it is preferable that the refractive index of the transparent adhesive layer has a value between the refractive index of the semi-reflective means and the refractive index of the circular polarizing means.
- the semi-reflective means and the circular polarizing means may be in the form of any one of a film, a sheet or a plate.
- the surface of the circular polarizing film facing the first space is subjected to an anti-reflection treatment.
- the third aspect of the present invention relates to a polarization system having different reflectivities toward both spaces according to the first aspect of the present invention.
- the above polarization system further has a color polarization means arranged toward the second space more than the reflective polarization means,
- the first space above is an object viewed by a person staying in the second space through the polarization system
- the above second space is an object viewed by a person staying in the above first space through the above polarization system.
- the color polarizing means When looking at the first space from the second space, provides a polarizing system in which the reflectance toward the two colored spaces is different.
- the angle formed between the direction of the transmission axis of the color polarizing means and the direction of the transmission axis of the reflective polarizing means be within the range of +7° or -7° (including +7° and -7°) from 0° when the directions of the transmission axes are parallel.
- the angle formed between the direction of the transmission axis of the color polarizing means and the direction of the transmission axis of the reflective polarizing means is 0°, and the directions of the transmission axes of the color polarizing means and the reflective polarizing means are parallel to each other.
- a means for transmitting light is located at the boundary between the first and second spaces.
- the above color polarizing means, the above reflective polarizing means, and the above absorption polarizing means are arranged in the means through which the light transmits.
- the color polarizing means or the reflective polarizing means have a specific shape for decoration, advertising or information transmission.
- the color polarizing means and the reflective polarizing means are positioned so that when the color polarizing means and the reflective polarizing means are viewed from the second space, one of them is positioned within the area of the other, or at least part of them overlaps with each other.
- the color polarizing means and the reflective polarizing means are attached to each other.
- the third aspect of the present invention is, again,
- a polarization system including a color polarization means, a reflective polarization means, and an absorption polarization means,
- the first space above is an object viewed by a person staying in the second space through the polarization system
- the above second space is an object viewed by a person staying in the above first space through the above polarization system.
- each of the color polarizing means, the reflective polarizing means, and the absorptive polarizing means forms an angle with respect to each other such that the first reflectivity, which is the reflectivity for light departing from the first space toward the polarizing system and reflected from the polarizing system to the first space, and the second reflectivity, which is the reflectivity for light departing from the second space toward the polarizing system and reflected from the polarizing system to the second space, are different from each other,
- a polarization system in which the reflectivity toward the two spaces is different, characterized in that the color polarization means has a color when looking at the first space from the second space.
- the color polarizing means, the reflective polarizing means, and the absorption polarizing means are each placed on a plane parallel to each other.
- the angle formed between the direction of the transmission axis of the color polarizing means and the direction of the transmission axis of the reflective polarizing means is within the range of +7° or -7° (including +7° and -7°) from 0° when the directions of the transmission axes are parallel.
- the angle formed between the direction of the transmission axis of the color polarizing means and the direction of the transmission axis of the reflective polarizing means is 0°, and the directions of the transmission axes of each of the color polarizing means and the reflective polarizing means are parallel to each other.
- angles formed between the direction of the transmission axis of the color polarizing means, the direction of the transmission axis of the reflective polarizing means, and the direction of the transmission axis of the absorption polarizing means are all 0°, and the directions of the transmission axes of the color polarizing means, the reflective polarizing means, and the absorption polarizing means are all parallel to each other.
- either or both of the color polarizing means or the reflective polarizing means have a specific form for decoration, advertising or information transmission.
- the color polarizing means and the reflective polarizing means are positioned so that when the color polarizing means and the reflective polarizing means are viewed from the second space, one of them is positioned within the area of the other, or at least part of them overlaps with each other.
- the color polarizing means and the reflective polarizing means may be attached to each other.
- a means for transmitting light is located at the boundary between the first and second spaces.
- the above color polarizing means, the above reflective polarizing means, and the above absorption polarizing means are arranged in the means through which the light transmits.
- the fourth aspect of the present invention is a
- a polarization system that is installed like a transparent solar power generation panel that can generate power by receiving light from both sides, and that includes a reflective polarization means and an absorbing polarization means,
- the transparent solar power generation panel and the absorbing polarizing means are arranged relative to each other such that the transparent solar power generation panel is arranged on the side facing the second space, the absorbing polarizing means is arranged on the side facing the first space, and the reflecting polarizing means is arranged between the transparent solar power generation panel and the absorbing polarizing means, wherein
- the above second space is a place where sunlight is provided to the above transparent solar power generation panel
- the first space is a space where a person staying in this space views the second space through the polarization system and the transparent solar power generation panel.
- the reflective polarizing means is arranged so that a portion of the sunlight that originates from the second space and passes through the transparent solar power generation panel is reflected by the reflective polarizing means and passes through the solar power generation panel again.
- the angle formed between the directions of the respective transmission axes of the reflective polarizing means and the absorption polarizing means is set to 0° when the directions of the transmission axes are parallel, and is within a range of +10° or -10° (including +10° and -10°), thereby providing a polarizing system having different reflectances toward both spaces.
- the reflective polarizing means and the absorptive polarizing means are placed on planes parallel to each other.
- the solar power generation panel is a medium having a flat surface, and it is preferable that the plane on which the reflective polarizing means and the absorptive polarizing means are placed is arranged parallel to the plane formed by the solar power generation panel.
- the angle formed between the directions of the transmission axes of the reflective polarizing means and the absorbing polarizing means is 0°, and the directions of the transmission axes of the reflective polarizing means and the absorbing polarizing means are parallel to each other.
- a means for transmitting light is located at the boundary between the first and second spaces.
- the above transparent solar power generation panel, the reflective polarizing means, and the absorptive polarizing means are arranged in the means through which the light transmits.
- the reflective polarizing means and the absorptive polarizing means are attached to each other.
- the reflectivity in each direction differs for the first and second spaces. Based on this, when looking at the first space from the second space, the line of sight is blocked, while when looking at the second space from the first space, the view is not obstructed by reflected light.
- This application of the present invention may be useful in relation to privacy protection.
- the present invention also provides a unique effect in which one or both of the reflective polarizing means and the absorbing polarizing means have a specific shape for decoration, advertising, or information transmission, and in which one or both are positioned within the area of the other or their respective parts overlap each other, thereby producing a different shape and reflection when looking at a second space from a first space, and when looking at a first space from a second space.
- the reflective polarizing means facing the second space has high visibility when viewed from the second space due to the reflection of light, but in the place where the absorptive polarizing means and the reflective polarizing means overlap, there is no obstruction in the view from the first space to the second space.
- the present invention is applied to an observation room and an investigation room, so that a subject in the investigation room cannot see the observation room, but an investigator in the investigation room can see the observation room, and direct sunlight from the lighting in the investigation room is prevented from reaching the observation room, so that an observer can observe the investigation room better without being disturbed by the lighting.
- the present invention proposes a case in which a color polarizing means is additionally provided, and in this case, when viewed from a second space, it has a color, and one or both of the color polarizing means and the reflective polarizing means have a specific shape for decoration, advertising, or information transmission, and further, by positioning one of them within the area of the other or arranging the respective parts to overlap each other, a unique effect can be obtained in which the shape, color, and reflection appear differently when the second space is viewed from the first space, and when the first space is viewed from the second space.
- the color polarizing means directed toward the second space can create high visibility and aesthetics when viewed from the second space with the reflected light having color, but in places where these color polarizing means and the reflective polarizing means overlap, the view from the first space to the second space is not obstructed.
- the present invention relates to a transparent solar power generation panel installed between a first space and a second space, and increases power generation efficiency by allowing reflected light to be transmitted through the back of the transparent solar power generation panel in addition to light passing through the transparent solar power generation panel from the first space, while preventing the view from being obstructed by reflected light when looking at the second space from the first space.
- FIG. 1 is a drawing showing the structure of a polarization system having different reflectivities toward both spaces according to the first aspect of the present invention
- Figure 2 is a drawing showing that the planes on which the absorptive polarizing film and the reflective polarizing film are placed are parallel to each other;
- FIG. 3 is a drawing showing an example of an object to which a polarization system having different reflectivities toward both spaces according to the present invention is applied;
- FIGS. 4 to 7 are drawings showing examples of polarization systems having different reflectivities toward both spaces according to the first aspect of the present invention being arranged in the window of FIG. 3;
- Figure 8 is a diagram schematically showing the angle formed between the directions of the transmission axes of an absorption-type polarizing means and a reflection-type polarizing means;
- FIG. 9 is a drawing showing an example of a case in which reflection occurs in a reflective polarizing film of a polarizing system having different reflectivities toward both spaces according to the first aspect of the present invention, causing glare;
- Fig. 10 is a drawing showing a solution structure for resolving the glare of Fig. 9;
- Figure 11 is a drawing showing an example of a case where glare occurs due to reflection caused by an external reflector
- Fig. 12 is a drawing showing a solution structure for resolving the glare of Fig. 11;
- Figures 13 to 16 are drawings showing the structure when the present invention is applied to an observation room and an investigation room;
- Fig. 17 is a drawing showing the direction of the reflection axis of a reflective polarizing means being projected onto a polarizing means for lighting;
- FIGS. 18 to 20 are drawings showing a case where a reflective polarizing means and an absorptive polarizing means are arranged to overlap each other in a specific form for decoration, advertising or information transmission;
- FIG. 21 is a drawing showing a color film arranged on an absorptive polarizing film of a polarizing system having different reflectivities toward both spaces according to the first aspect of the present invention
- FIG. 22 is a drawing showing the structure of a polarization system having different reflectivities toward both spaces according to the second aspect of the present invention.
- Figure 23 is a drawing showing that the planes on which the circular polarizing film and the semi-reflective film are placed are parallel to each other;
- Fig. 24 is an example of a structure in which the surface on which light passing through a circular polarizing film hits a semi-reflective film has no birefringence
- FIGS. 25 to 27 are drawings showing examples of polarization systems having different reflectivities toward both spaces according to the second aspect of the present invention being arranged in the window of FIG. 3;
- FIG. 28 is a drawing showing the structure of a polarization system having different reflectivities toward both spaces according to the third aspect of the present invention.
- Figure 29 is a drawing showing that the planes on which the color polarizing film and the reflective polarizing film are placed are parallel to each other;
- Fig. 30 is a drawing schematically showing the angle formed between the directions of the transmission axes of the color polarizing means and the reflective polarizing means;
- FIGS. 31 and 32 are drawings showing examples of a color polarizing film, a reflective polarizing film, and an absorptive polarizing film being arranged on a transparent window in a polarizing system having different reflectivities toward both spaces according to a third aspect of the present invention
- FIGS. 33 to 35 are drawings showing a case where a color polarizing means and a reflective polarizing means are arranged to overlap each other in a specific form for decoration, advertising, or information transmission;
- FIG. 36 is a drawing showing the structure of a polarization system having different reflectivities toward both spaces according to the fourth aspect of the present invention.
- Figure 37 is a drawing showing that the planes on which the transparent solar power generation panel, the absorbing polarizing film, and the reflecting polarizing film are placed are parallel to each other;
- FIGS. 38 and 39 are drawings showing examples of polarization systems having different reflectivities toward both spaces according to the fourth aspect of the present invention installed on transparent windows installed on the exterior walls of buildings;
- FIG. 40 is a diagram schematically showing the angle formed between the directions of the transmission axes of a reflective polarizing film and an absorptive polarizing film in the fourth aspect of the present invention.
- FIG. 1 is a drawing showing the structure of a polarization system (1000) having different reflectivities toward both spaces according to the first aspect of the present invention.
- the polarization system (1000) having different reflectivities toward the two spaces includes a reflective polarization means (200) and an absorptive polarization means (100) which are placed on planes parallel to each other.
- the directions of the transmission axes of each of the reflective polarizing means (200) and the absorbing polarizing means (100) are parallel to each other.
- this is a preferred case, and is not necessarily the case according to the present invention, which will be described later.
- FIG. 1 (a) shows a case where light from a second space (S2) is incident on the reflective polarizing film (200), some of which is reflected, some of which is transmitted through the reflective polarizing film (200), and some of which is incident on the absorbent polarizing film (100) and transmitted through the reflective polarizing film (100) to reach the first space (S1)
- FIG. 1 (b) shows a case where light from a first space (S1) is incident on the absorbent polarizing film (100) along the same optical path as that of FIG. 1 (a), some of which is absorbed, some of which is transmitted through the reflective polarizing film (200), and some of which is transmitted through the reflective polarizing film (200) to reach the second space (S2).
- the first plane (100p), which is the plane on which the absorption-type polarizing means (100) is placed, and the second plane (200p), which is the plane on which the reflection-type polarizing means (200) is placed, are parallel to each other.
- the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) are parallel to each other.
- the angle ( ⁇ 1) formed by the directions of the transmission axes (100a) (200a) is defined as 0°.
- the first space (S1) and the second space (S2) are positioned respectively on the sides where the absorption-type polarization means (100) and the reflection-type polarization means (200) are respectively positioned. That is, the reflection-type polarization means (200) is positioned on the side facing the second space (S2), and the absorption-type polarization means (100) is positioned on the side facing the first space (S1).
- the reflective polarizing means (200) is arranged on the side facing the second space (S2), and the absorbent polarizing means (100) is arranged on the side facing the first space (S1), which means that they are arranged relatively to each other.
- the reflective polarizing means (200) is positioned further to the left of the absorbent polarizing means (100) in the drawing, and is arranged relatively on the side facing the second space (S2), and the absorbent polarizing means (100) is arranged relatively on the side facing the first space (S1).
- a transparent window (W) is installed at the boundary between the first space (S1) and the second space (S2), and a reflective polarizing means (200) and an absorbing polarizing means (100) are installed at various locations with respect to the transparent window (W).
- the positions where the reflective polarizing means (200) and the absorbing polarizing means (100) are arranged are different in each case, but the reflective polarizing means (200) is arranged relatively toward the second space (S2) compared to the absorbing polarizing means (100), and the absorbing polarizing means (100) is arranged relatively toward the first space (S1) compared to the reflective polarizing means (200).
- the first space (S1) is an object viewed by a person staying in the second space (S2) through the reflective polarizing means (200) and the absorbing polarizing means (100).
- the second space (S2) is an object viewed by a person staying in the first space (S1) through the absorption-type polarization means (100) and the reflection-type polarization means (200).
- the object of looking literally means looking at something, and does not necessarily imply what is seen.
- the first space (S1) when looking at the first space (S1) from the second space (S2), a line-of-sight blocking effect occurs in which the degree to which the first space (S1) is visible worsens. That is, when looking at the first space (S1) from the second space (S2) through the reflective polarizing means (200) and the absorptive polarizing means (100), the first space (S1) may not be visible, may require close inspection, or may not be visible at all.
- the first space (S1) is an object viewed through the reflective polarizing means (200) and the absorbing polarizing means (100).
- a person staying in the first space (S1) or the second space (S1) does not necessarily mean a person actually staying in that space, but means that a means of viewing can be located.
- the space between the wearer's eyes and the sunglasses can be the first space
- the external space that the wearer sees through the sunglasses can be the second space.
- the wearer's eyes, which are a means of looking at the second space are located in the first space, it can be said that a person staying in the first space is looking at the second space.
- the person staying in the first space (S1) or second space (S2) may not be a person, but may be a device that takes pictures or videos, such as a CCTV.
- a reflective polarizing means (200) transmits waves vibrating in a specific direction with respect to incident light (electromagnetic waves of a certain wavelength range) and reflects waves vibrating in a direction perpendicular thereto.
- a representative example of this reflective polarizing means (200) is 3M's product name DBEF (Double Brightness Enhancement Film).
- An absorption polarizing means (100) is a polarizing means that transmits waves vibrating in a specific direction with respect to incident light and absorbs waves vibrating in a direction perpendicular thereto, preventing them from being transmitted. It can be said to be the most common polarizing means.
- the transmission axis the direction in which all light is transmitted
- the direction in which all light is reflected in a direction perpendicular thereto is called the reflection axis.
- the transmission axis the direction in which all light is transmitted
- the absorption axis the polarization direction in which all light is absorbed in a direction perpendicular thereto.
- the polarization direction of light being parallel to or coincident with the transmission axis, absorption axis, or reflection axis of the absorption-type polarization means or the reflection-type polarization means, or the angle formed by them being 0°, means that when the light is incident perpendicularly to the plane formed by the absorption-type polarization means or the reflection-type polarization means, the polarization direction of the light and the transmission axis, absorption axis, or reflection axis are parallel, but in the case of light incident at an angle other than perpendicular, when the polarization direction of the light is projected (or projected) onto the plane formed by the absorption-type polarization means or the reflection-type polarization means according to the direction of propagation of the light, the projected direction has a polarization direction that coincides with the transmission axis, absorption axis, or reflection axis.
- the direction of the transmission axis of the reflective polarizing means (200) and the direction of the transmission axis of the absorption polarizing means (100) are mutually parallel, the angle formed between them is 0°, or these directions are identical and can be used interchangeably.
- the reflective polarizing means (200) and the absorption polarizing means (100) will mainly be used in the form of a film, but those in the form of a sheet or plate are not excluded.
- Film and sheet or plate are relative concepts based on their thickness, with film being the thinnest, followed by sheet and then plate in that order.
- One standard is that film is 0.25 mm or less in thickness, sheet is 0.25 mm to 1 mm or less, and anything thicker is classified as plate.
- reflective polarizing means (200) and absorbent polarizing means (100) are explained by using examples such as a reflective polarizing film and an absorbent polarizing film, respectively.
- the light (20') is transmitted through an absorptive polarizing film (100) arranged parallel to the reflective polarizing film (200) and having a parallel transmission axis direction, and is introduced into the first space (S1).
- the light introduced into the first space in this way is indicated by the symbol 20".
- Fig. 1 the direction of the transmission axis of the reflective polarizing film (200) and the absorptive polarizing film (100) is indicated by ⁇ as a direction perpendicular to the paper surface.
- the direction of the reflection axis of the reflective polarizing film (200) and the direction of the absorption axis of the absorbing polarizing film (100) are indicated by vertical arrows ( ⁇ ).
- the light of the wave direction in the reflection axis direction which is perpendicular to the direction of the transmission axis of the reflective polarizing film (200), is reflected from the reflective polarizing film (200).
- the light reflected in this way is indicated by the symbol 20"'.
- unpolarized light (10) incident from the first space (S1) onto the absorbent polarizing film (100) (in a state where waves in various directions are all mixed or in a state where various polarization directions are all mixed) light having a wave direction (polarization direction) that is parallel to the direction of the transmission axis of the absorbent polarizing film (100) transmits through the absorbent polarizing film (100).
- the light transmitted in this manner is indicated by the symbol 10'.
- the light (10') transmitted through the above-mentioned absorption-type polarizing film (100) has a polarization direction parallel to the transmission axis of the reflection-type polarizing film (200), so it passes through the reflection-type polarizing film (200) as is and no reflection occurs.
- the efficiency of the reflective polarizing film (200) is ideal, it can be seen that roughly (i.e., if the efficiency of the reflective polarizing film and the absorbing polarizing film are ideal and there are no other interference factors) about 1/2 of the unpolarized light (20) incident from the second space (S2) is reflected by the reflective polarizing film (200) and the remaining 1/2 sequentially passes through the reflective polarizing film (200) and the absorbing polarizing film (100) and enters the first space (S1).
- the efficiency of the absorptive polarizing film (100) is ideal, roughly half of the unpolarized light (10) incident in the first space (S1) is absorbed by the absorptive polarizing film (100), and the remaining half is transmitted through the absorptive polarizing film (100). Since the polarization direction of this transmitted light (10') is parallel to the transmission axis of the reflective polarizing film (200), it is completely transmitted through the reflective polarizing film (200) without reflection and enters the second space (S2). There is no reflection when the absorptive polarizing film (100) or the reflective polarizing film (200) is transmitted. Of course, there may be reflection due to surface reflection, but this will be minimal. Meanwhile, as described later, surface reflection can be reduced through anti-reflection treatment, etc.
- the first reflectivity which is the reflectivity for light that departs from the first space (S1) toward the absorbing polarizing means (100) and the reflecting polarizing means (200) and is reflected from these absorbing polarizing means (100) and reflecting polarizing means (200) to the first space (S1)
- the second reflectivity which is the reflectivity for light that departs from the second space (S2) toward the reflecting polarizing means (200) and the absorbing polarizing means (100) and is reflected from these reflecting polarizing means (200) and absorbing polarizing means (100) to the second space (S2)
- the second reflectivity is significantly higher than the first reflectivity.
- the view of the first space (S1) is impaired due to strong reflection caused by high reflectivity, resulting in a view blocking effect.
- the view of the second space (S2) is not obstructed (view obstructed) by reflection caused by low reflectivity.
- the light (10" introduced from the first space (S1) to the second space (S2) is not clearly visible due to the reflected light (20''') from the reflective polarizing film (200), whereas when looking at the second space (S2) from the first space (S1), the reflection from the absorptive polarizing film (100) or the reflective polarizing film (200) is absent or minimal, so the light (20") introduced from the second space (S2) to the first space (S1) is clearly visible.
- the present invention enables the reflectivity of the reflected light reflected toward each space to be different for the first space (S1) and the second space (S2), which are objects of mutual observation for those staying in each space.
- a means for transmitting light is positioned at the boundary between the first space (S1) and the second space (S2), and the reflective polarizing film (200) and the absorptive polarizing film (100) can be placed on the means for transmitting light.
- the means through which the light transmits may be a medium through which light transmits, such as transparent glass, and at least one of its surfaces may be flat, and it is preferable that the reflective polarizing film (200) and the absorptive polarizing film (100) are arranged parallel to the medium through which the light transmits.
- a building (9) is provided as in FIG. 3 and a transparent window (W) is installed on the outer wall of the building (9), the space inside the building becomes a first space (S1) and the space outside the building becomes a second space (S2), and the transparent window (W) becomes a medium through which light is transmitted at the boundary between the first space (S1) and the second space (S2), and the reflective polarizing film (200) and the absorptive polarizing film (100) of the polarizing system (1000) according to the present invention, which have different reflectivities toward the two spaces, are arranged parallel to the transparent window (W).
- the means for transmitting light located at the boundary between the first space (S1) and the second space (S2) is usually a medium such as the transparent window (W) described above, but this is not necessarily the case and may be an empty space without a transparent window (W).
- a space (not shown) opened in the outer wall of the building (9) can be formed, and a polarizing system (1000) having different reflectivities toward both spaces according to the present invention can be installed therein.
- a polarizing system (1000) having different reflectivities toward both spaces according to the present invention can be installed therein.
- a specific medium through which light transmits such as a transparent window (W)
- W transparent window
- the surface (101) of the absorbent polarizing film (100) facing the first space (S1) can be subjected to an anti-reflection treatment, and in this case, surface reflection that may occur in the absorbent polarizing film (100) when introduced from the first space (S1) can be reduced.
- an anti-reflection coating can be applied or a film with an anti-reflection coating can be attached.
- the reflective polarizing film (200) and the absorptive polarizing film (100) may be spaced apart from each other, but may also be attached to each other.
- the reflective polarizing film (200) and the absorbent polarizing film (100) can be attached to each other via a transparent adhesive layer (12), and it is preferable that the refractive index of the transparent adhesive layer (12) has a value between the refractive index of the reflective polarizing film (200) and the refractive index of the absorbent polarizing film (100). This is to reduce internal reflection.
- the reflective polarizing film (200) usually has a structure in which two birefringent media with different refractive indices in both directions are alternately stacked along their main axes.
- the average refractive index of these birefringent media can be used as the refractive index of the reflective polarizing film (200).
- the absorbent polarizing film (100) is composed of a polarizing layer in which polarization occurs and a protective layer to protect it.
- the refractive index of the absorbent polarizing film (100) can be used as the refractive index of the protective layer.
- the transparent adhesive layer (12) does not have birefringence, and if it does, the optical principal axes of the birefringence should be parallel or perpendicular to the transmission axes of the reflective polarizing film (200) and the absorptive polarizing film (100).
- the reflective polarizing film (200) and the absorbing flat polarizing film (100) attached to each other are attached to the surface (W11) facing the first space (S1) of the transparent window (W) of Fig. 3.
- the transparent window (W) of FIG. 3 is a double transparent window having a first transparent window (W1) and a second transparent window (W2), as shown in FIG. 5, and the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side, it is preferable that the reflective polarizing film (200) and the absorptive polarizing film (100) attached to each other are attached to the surface (W12) of the first transparent window (W1) facing the second space (S2).
- the transparent window (W) of FIG. 3 is a double transparent window having a first transparent window (W1) and a second transparent window (W2), and the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side, as shown in FIG.
- the reflective polarizing film (200) be attached to a surface (W21) of the second transparent window (W2) facing the first space (S1), and the absorptive polarizing film (100) be attached to a surface (W12) of the first transparent window (W1) facing the second space (S2).
- a reflective polarizing film (200) may be installed on the second space side (201) of the window (W) and an absorptive polarizing film (100) may be installed on the first space side (101).
- the arrangement of the reflective polarizing film (200) and the absorptive polarizing film (100) shown in FIGS. 4, 5, 6 and 7 relative to the transparent window (W) is merely an example of an environment in which these films (100) (200) are well protected, and these films (100) (200) can be freely arranged under the conditions according to the present invention.
- FIGS. 4, 5, 6 and 7, a method of attaching and fixing the film to a glass window or the like is illustrated, but instead of attaching and fixing the film, it may be installed and removed freely in the form of a blind or roller screen, and the present invention includes such a case.
- FIGS. 4, 5, 6 and 7 show that a reflective polarizing film (200) and an absorptive polarizing film (100) are installed on the front surface of the glass window, but it is of course possible to install them only in a necessary portion of the area.
- the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) are parallel to each other.
- the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) are not parallel but form a specific angle, some of the light that starts from the first space (S1), passes through the absorption-type polarizing film (100), and is polarized in a specific direction is reflected in the same direction as the reflection axis of the reflection-type polarizing film (200), and accordingly, some of the light that starts from the first space (S1) to the absorption-type polarizing film (100) and the reflection-type polarizing film (200) is reflected from the absorption-type polarizing film (100) and the reflection-type polarizing film (200) to the first space (S1), and the light reflected in this way is not transmitted, so the light that goes from the first space (S1) to the second space (S2) is also reduced.
- the intensity of light (hereinafter, “intensity of first reflected light”) that starts from the first space (S1), passes through the absorbent polarizing film (100), is reflected by the reflective polarizing film (200), and then passes through the absorbent polarizing film (100) again and is reflected back to the first space (S1) is proportional to sin ⁇ with respect to the angle ( ⁇ ) formed between the directions of the transmission axes (100a) (200a) of the absorbent polarizing means (100) and the reflective polarizing means (200), and the intensity of light that passes through these films (200) (100) from the second space (S2) to the first space (S1) or passes through these films (100) (200) from the first space (S1) to the second space (S2) tends to be proportional to cos ⁇ .
- the value of sin ⁇ is 1 and the value of cos ⁇ is 0, so the intensity of the first reflected light becomes the maximum, and no light is transmitted between the absorption-type polarization means (100) and the reflection-type polarization means (200) between the first space (S1) and the second space (S2).
- the angle ( ⁇ ) formed between the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) that are arranged parallel to each other can be determined according to the applicable situation to obtain an optimal effect.
- the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) be parallel to each other in order to obtain the effect of blocking the view, which improves the view from the first space (S1) to the second space (S2) and worsens the view from the second space (S2) to the first space (S1).
- the present invention is essentially to make the reflectivity toward both the first space (S1) and the second space (S2) different from each other, and if there is a range of angles ( ⁇ 1) that can make these reflectivity different, it may be said to satisfy the present invention.
- Figures 8 (a) and (b) schematically show the ranges of + ⁇ 1 and - ⁇ 1, taking the angle ( ⁇ 1) formed by the absorption-type polarizing means (100) and the reflection-type polarizing means (200) of Figure 8 (c) as 0° when the directions of the transmission axes (100a) (200a) are parallel to each other.
- the angle ( ⁇ 1) they form should be in the range of +25° or -25° (inclusive of +25° and -25°) from this, preferably in the range of +10° or -10° (inclusive of +10° and -10°), and most preferably 0° (parallel to each other).
- the reflected light reflected from the reflective polarizing film (200) may cause glare.
- a polarizing system (1000) with different reflectivity toward both spaces is installed on a transparent window (W91) of building 91, and a reflective polarizing film (200) is positioned to face the second space (S2), which is an external space.
- sunlight (R71) reaches the reflective polarizing film (200) and is reflected toward the transparent window (W92) of an adjacent building (92).
- the reflected light (R72) passing through the transparent window (W92) of the building (92) may cause glare to the residents inside.
- the transparent window (W92) becomes a reflective light transmitting means through which the reflected light (R72) reflected from the reflective polarizing film (200) passes, and the surface through which the reflected light (R72) enters the transparent window (W92) forms a flat surface (third plane).
- the plane (W92P) on which the transparent window (W92), which is a reflective light transmitting means, is placed becomes the third plane into which the reflected light (R72) is introduced.
- the present invention proposes a method for preventing glare caused by reflected light reflected from a reflective polarizing film (200) passing through a reflective light transmitting means (W92) when a polarizing system (1000) having different reflectivity toward the space on both sides is installed.
- the direction of the reflection axis (200a) of the reflective polarizing film (200) is projected onto the third plane (W92P) along the direction of the reflected light (R72) toward the third plane (W92P) in the reflective polarizing film (200).
- Figure 10 (a) shows that the direction of the reflection axis (200a) of the reflective polarizing film (200) is projected onto the third plane (W92P).
- a reflective polarizing film (300) having a direction of a reflection axis (200a') that matches the direction of a reflection axis (200a) of the reflective polarizing film (200) projected in this manner is placed parallel to the third plane (W92P) on the reflective light transmitting means (W92).
- an absorption-type polarizing film (300') having an absorption axis (200a') direction that matches the direction of the reflection axis (200a) of the reflective polarizing film (200) projected in this way is placed parallel to the third plane (W92P) on the reflection-type light transmitting means (W92).
- the reflected light (R72) reflected from the reflective polarizing film (200) of the polarizing system (1000) with different reflectivity toward both spaces installed in the transparent window (W91) of the building (91) is reflected by the reflective polarizing film (300) installed in the transparent window (W92) of the adjacent building (92), which is a means for transmitting reflected light, or is absorbed by the absorbent polarizing film (300').
- the reflected light (R72) reflected from the reflective polarizing film (200) is prevented from passing through the transparent window (W92) of the adjacent building (92), and does not cause glare to the occupants of the interior space (S3) of the building (92).
- the reflective polarizing film (300) or the absorbing polarizing film (300') in the transparent window (W92) of the adjacent building (92), which is a reflective light transmitting means the direction (200a') of the reflection axis or absorption axis of the film (300) (300') through which the reflected light (R72) cannot pass can be found, and if the exact direction is found in this way, the direction will match the direction obtained by projecting (projecting) the direction of the reflection axis (200a) of the reflective polarizing film (200) onto the third plane (W92P) as above.
- the reflective light transmitting means through which the reflected light reflected from the reflective polarizing film (200) of the polarizing system (1000) having different reflectances toward both spaces is transmitted is generally a medium that transmits light, such as a transparent window (W92), but is not necessarily limited thereto and may be an empty space.
- the interior space (S3) of a building (92) can be connected to the exterior space (S2) through an open space, and the reflected light (R72) reflected from the reflective polarizing film (200) of the polarizing system (1000) having different reflectances toward the two spaces installed in the building (91) can be transmitted through the open space of the building (92) and dazzle the occupants of the interior space (S3).
- the reflected light (R72) reflected from the reflective polarizing film (200) of the polarizing system (1000) having different reflectances toward the two spaces installed in the building (91) can be prevented from penetrating the open space of the building (92).
- a polarizing system (1000) having different reflectances toward both spaces according to the present invention is installed in a transparent window (W93) of a building (93), and the reflective polarizing film (200) is positioned toward the second space (S2), which is an external space.
- sunlight (R91) is reflected from the lake (80), and the reflected light (R92) is directed toward the reflective polarizing film (200) of the polarizing system (1000) with different reflectivity toward both spaces installed in the transparent window (W93), and this reflected light (R92) causes glare to the occupants of the first space (S1), which is a space inside the building, and thus it is necessary to remove it.
- the reflective polarizing film (200) placed on the side facing the second space (S2) outside the building (93) is installed so that the direction (200b') of its reflection axis matches the polarization direction (200b) of the external reflected light (R92) to be removed that passes through the second space (S2).
- the reflected light is partially or fully polarized, and if the polarization direction (200b) of the polarized light among the reflected light (R92) and the direction (200b') of the reflection axis of the reflective polarizing film (200) placed toward the second space (S2) outside the building (93) are identical, the reflected light (R92) will not be able to pass through the reflective polarizing film (200) and will be reflected.
- the reflective polarizing film (200) by rotating the reflective polarizing film (200), the direction of the reflection axis (200b') through which the reflected light (R92) does not pass can be found.
- the polarization system (1000) according to the present invention having different reflectivities toward both spaces can be applied to an observation room and an investigation room.
- Observation room and investigation room refer to two spaces structured so that, for example, an investigative agency can place a subject of investigation in the investigation room and an observer in the observation room can observe the subject of investigation in the investigation room.
- the observation room must be visible from the investigation room, and the investigation room must be visible from the observation room.
- conventional techniques have involved placing a glass window between the observation room and the investigation room, installing a semi-reflective film on the window, and installing strong lighting in the investigation room.
- Figures 13 and 14 show that a polarization system (1000) with different reflectances toward both spaces according to the present invention is applied to an observation room and an investigation room.
- the first space (S1) of the present invention becomes an observation room
- the second space (S2) of the present invention becomes an investigation room.
- lighting (6) is installed in the investigation room (S2), transparent glass (W) is installed between the first space (S1) and the second space (S2), and an absorption-type polarizing film (100) and a reflective polarizing film (200) according to the present invention are installed on the transparent glass (W).
- the view is basically unobstructed when looking from the observation room (S1) to the investigation room (S2), but the view is blocked when looking from the investigation room (S2) to the observation room (S1).
- the observer (3a) in the observation room (S1) can see the subject (3c) in the investigation room (S2), but the subject (3c) in the investigation room (S2) cannot see the observer (3a) in the observation room (S1).
- the present invention expands upon this basic configuration so that the subject (3c) in the investigation room (S2) cannot see the inside of the observation room (S1), but the investigator (3b) in the investigation room (S2) can see the inside of the observation room (S1).
- the investigator (3b) in the investigation room (S2) can, for example, see the actions of the observer (3a) in the observation room (S1), see the hand signals of the observer (3a), or see a display that shows a display means installed in the observation room (S1), which is helpful for the investigation.
- a polarizing means (800) for investigation is installed for the eyes of the investigator (3b) in the investigation room (S2), which is the second space.
- the above investigator (3b) may be wearing a frame (8) in the form of glasses, and the polarizing means (800) for investigation may be installed in the frame (8) in the form of glasses.
- This is, for example, polarized sunglasses.
- the direction of the transmission axis (800c) of the polarizing means (800) for investigation is parallel to the direction of the transmission axis (200c) (100c) of the reflective polarizing film (200) and the absorbent polarizing film (100). Therefore, it will be perpendicular to the direction of the reflection axis of the reflective polarizing means (200).
- the polarization direction of the above reflected light (612) will have the direction of the reflection axis of the above reflective polarizing film (200) in a general situation, and will not transmit through the polarizing means (800) for investigation, which has the direction of the transmission axis (800c) perpendicular to the direction of the reflection axis of the above reflective polarizing film (200).
- the polarization direction of all the reflected light (612) reflected from the reflective polarizing film (200) does not have the same direction, but when considering the position of the glass window (W) that is likely to be installed between the observation room (S1) and the investigation room (S2), the height of a typical person sitting or standing, the position where the investigator (3b) is likely to be positioned during the investigation, and the position where the light (6) is generally installed, the reflected light (612) directed toward the investigator (3b) will have a polarization direction in a specific direction, and in most cases, this direction will follow the direction of the reflection axis of the reflective polarizing film (200), so it can be seen that it does not transmit the investigation polarizing means (800) having the transmission axis (800c) that is perpendicular to the reflection axis.
- 100c and 200c show the direction of the transmission axis of the absorption-type polarizing film (100) and the reflective polarizing film (200), respectively.
- the investigator (3b) can view the inside of the first space, the observation room (S1), without being obstructed by the reflected light (612) of the light (6), and can view the hand signal of the observer (3a) or the display of the display means installed in the observation room (S1), which is helpful for the investigation.
- FIG. 14 describes a configuration in which the present invention is extended to prevent direct sunlight from the light (6) of the investigation room (S2) to the observation room (S1) from being visible from the observation room (S1), thereby allowing an observer (3a) of the observation room (S1) to view the investigation room (S2) without being obstructed by the direct sunlight of the light (6), thereby enabling better observation of the subject (3c).
- the direct sunlight from the light (6) of the investigation room (S2) directly to the observation room (S1) refers to the light that goes directly to the observation room (S1), excluding the case where the light emitted from the light (6) of the investigation room (S2) reaches other objects in the investigation room (S2) and is reflected and goes to the observation room (S1).
- a polarizing means (600) for lighting is installed between the light (6) of the investigation room (S2) and the reflective polarizing film (200) to block direct sunlight emitted from the light (6) of the investigation room (S2) to the reflective polarizing film (200).
- the light (610) of the above lighting (6) passes through the lighting polarizing means (600) to become light (610') and is directly incident on the reflective polarizing film (200).
- the polarizing means (600) for lighting has a transmission axis that coincides with the direction of the reflection axis (200d) of the reflective polarizing means (200) that is projected (projected) toward the polarizing means (600) for lighting along a reverse path (-610') that follows the reverse path of the path of the light (610) irradiated toward the reflective polarizing means (200) from the light (6).
- a transmission axis that coincides with the direction of the reflection axis (200d) of the reflective polarizing means (200) that is projected (projected) toward the polarizing means (600) for lighting along a reverse path (-610') that follows the reverse path of the path of the light (610) irradiated toward the reflective polarizing means (200) from the light (6).
- the polarization direction of light (610') transmitted from the above lighting (6) and through the above lighting polarizing means (600) coincides with the direction (200d) of the reflection axis of the reflective polarizing film (200) when the light (610') reaches the reflective polarizing film (200), and only causes reflection without transmitting through the reflective polarizing film (200).
- either or both of the reflective polarizing means (200) and the absorptive polarizing means (100) may have a specific shape for decoration, advertising, or information transmission. That is, they may have the shape of letters, designs, characters, etc.
- the reflective polarizing means (200) and the absorbing polarizing means (100) may be positioned so that when looking at the reflective polarizing means (200) and the absorbing polarizing means (100) from the second space, one of them is positioned within the area of the other, or each part overlaps with the other.
- Figure 18 shows a reflective polarizing film (200) having a flower-shaped design and an absorptive polarizing film (100) arranged parallel to the reflective polarizing film and having their transmission axes coincident with each other, installed on a transparent window (W) installed on the exterior wall of a building.
- the reflective polarizing film (200) is positioned within the area of the absorptive polarizing film (100).
- the flower shape when viewed from the second space (S2), which is the external space of the building, the flower shape is made of a reflective polarizing film (200), so it reflects and has excellent visibility.
- the second space (S2) which is the external space of the building
- the flower shape is made of a reflective polarizing film (200)
- it reflects and has excellent visibility.
- the transmission axes of the reflective polarizing film (200) and the absorbent polarizing film (100) are aligned, so if the efficiency of the reflective polarizing film and the absorbent polarizing film is ideal and there are no problems such as internal reflection, light loss does not occur even if the light transmitted through the reflective polarizing film (200) transmits once more through the absorbent polarizing film (100), and therefore, there is no difference in the intensity of light transmitted through both the reflective polarizing film (200) and the absorbent polarizing film (100) or the intensity of light transmitted through only one of the reflective polarizing film (200) and the absorbent polarizing film (100), and thus this effect appears. Even if there is internal reflection, the effect is not significant, so this effect can be maintained.
- Figure 19 shows a case where a reflective polarizing film (200) is installed on a transparent window (W) and an absorptive polarizing film (100) having the shape of letters (LG) is installed on the back side thereof.
- the reflective polarizing film (200) and the absorbent polarizing film (100) are arranged parallel to each other, their transmission axes are coincident, and the absorbent polarizing film (100) is located within the area of the reflective polarizing film (200).
- the view is not obstructed when looking from the first space (S1) to the second space (S2).
- Figure 20 shows a case where a reflective polarizing film (200) and an absorptive polarizing film (100) each having an elliptical shape but arranged diagonally with respect to a transparent window (W) are installed.
- these reflective polarizing films (200) and absorptive polarizing films (100) are arranged as shown in (c) of Fig. 20, which is shown as a perspective view in (a) of Fig. 20.
- the reflective polarizing film (200) and the absorptive polarizing film (100) are arranged parallel to each other and their transmission axes are coincident.
- the reflective polarizing film (200) and the absorptive polarizing film (100) have overlapping portions, and this corresponds to a case where each portion is arranged to overlap with each other.
- the hatched symbol 120 indicates an overlapping portion in each
- the symbol 112 indicates an area of only the absorptive polarizing film (100) that does not overlap
- the symbol 212 indicates an area of only the reflective polarizing film (200) that does not overlap.
- the reflective polarizing film (200) portion reflects only toward the second space (S2), and in the portion (112) (112) where only the absorbent polarizing film (100) is installed, there is no reflection in both the first space (S1) and the second space (S2), and in the portion (212) (212) where only the reflective polarizing film (200) is installed, reflection occurs in both the first space (S1) and the second space (S2), and accordingly, various shapes can be expressed in all directions of both the first space (S1) and the second space (S2).
- the part (120) where the reflective polarizing film (200) and the absorbing polarizing film (100) overlap does not obstruct the view
- the part (112) (112) where only the absorbing polarizing film (100) is installed also does not obstruct the view, but it may become dark due to the absorption of light corresponding to the absorption axis.
- the present invention provides a unique effect in which the reflective polarizing means (200) and the absorptive polarizing means (100) have a specific shape for decoration, advertising, or information transmission, or in which one or both of them is positioned within the area of the other or the respective parts overlap each other, thereby producing a unique effect in which the shape and reflection appear differently when looking at the second space (S2) from the first space (S2), and when looking at the first space (S1) from the second space (S2).
- the reflective polarizing means (200) facing the second space (S2) has high visibility when viewed from the second space (S2) due to the reflection of light, but in the place where the absorptive polarizing means (100) and the reflective polarizing means (200) overlap, there is no obstruction in the view from the first space (S1) to the second space (S2).
- FIG. 18 as an example, only the outline of the shape of the reflective polarizing means (200) is visible.
- the reflective polarizing means (200) and the absorptive polarizing means (100) are arranged so that one or both of them has a specific shape for decoration, advertising, or information transmission, and further, when one is positioned within the area of the other or the respective parts are arranged to overlap each other, when the illuminance of the first space (S1) and the second space (S2) are reversed, the specific shape for decoration, advertising, or information transmission disappears or changes, which also results in the appearance.
- the flower shape formed by the reflective polarizing film (200) disappears even when viewed from the second space (S2), and the first space (S1) becomes clearly visible from the second space (S2), and when the second space (S2) is viewed from the first space (S1), the flower shape is not visible as during the day.
- FIGS. 18 to 20 a case is exemplified where a reflective polarizing film (200) and an absorptive polarizing film (100) are sequentially attached to the back of a glass window (W), but this is not necessarily the case and can be arranged in various ways as explained with reference to FIGS. 4 to 7.
- the absorption-type polarizing means (100) may further include a color film (4) arranged on a plane parallel to the absorption-type polarizing means (100) on the side (101) facing the first space (S1).
- the color film (4) may be attached to the absorption-type polarizing means (100) (FIG. 21 (a)) or installed on a plane parallel to the absorption-type polarizing means (100) (FIG. 21 (b)).
- the above color film (4) allows for controlling the transmittance of light introduced from the second space (S2) to the first space (S1) and light emitted from the first space (S1) to the second space (S2).
- the above-mentioned reflective polarizing film (200) or absorptive polarizing film (100) is very difficult to control its reflectivity, absorptivity or transmittance as needed due to its characteristics, and does not have a specific color.
- the amount or color of the transmitted light can be controlled by installing the color film (4) on the surface of the absorbent polarizing film (100) facing the first space (S1) as described above.
- the absorptive polarizing film (100) only plays a role in eliminating the reflection light from the first space (S1) side and thus eliminating the obstruction of the view due to the reflection light.
- the lighting in the investigation room (S2) is strong and the illuminance is high, and the lighting in the observation room (S1) is weak or absent and the illuminance is low, it may be sufficient to install only the reflective polarizing film (200) without installing the absorptive polarizing film (100).
- lighting (6) is installed in the investigation room (S2), transparent glass (W) is installed between the first space (S1) and the second space (S2), and a reflective polarizing film (200) is installed on this transparent glass (W).
- the observer (3a) in the observation room (S1) can see the subject (3c) in the investigation room (S2), but the subject (3c) in the investigation room (S2) cannot see the observer (3a) in the observation room (S1).
- a polarizing means (800) for investigation is installed for the eyes of the investigator (3b) in the investigation room (S2), which is the second space.
- the above investigator (3b) may be wearing a frame (8) in the form of glasses, and the polarizing means (800) for investigation may be installed in the frame (8) in the form of glasses.
- This is, for example, polarized sunglasses.
- the direction of the transmission axis (800c) of the polarizing means (800) for investigation is parallel to the direction of the transmission axis (200c) of the reflective polarizing film (200). Therefore, it is perpendicular to the direction of the reflection axis of the reflective polarizing means (200), and the reflected light (612) that originates from the light (6) of the investigation room (S2), which is the second space, is reflected by the reflective polarizing film (200), and is incident on the polarizing means (800) for investigation does not transmit the polarizing means (800), and the light (10") that originates from inside the observation room (S1), which is the first space, and transmits the reflective polarizing film (200) and enters the investigation room (S2), which is the second space, has its polarization direction coincident with the transmission axis (800c) of the polarizing means (800) for investigation.
- the investigator (3b) can view the inside of the first space, the observation room (S1), without being obstructed by the reflected light (612) of the light (6), and can view the hand signal of the observer (3a) or the display of the display means installed in the observation room (S1), which is helpful for the investigation.
- lighting (6) is installed in the investigation room (S2), transparent glass (W) is installed between the first space (S1) and the second space (S2), and a reflective polarizing film (200) is installed on this transparent glass (W).
- a polarizing means (600) for illumination is installed to block direct sunlight emitted from the light (6) of the above investigation room (S2) to the reflective polarizing film (200).
- the light (610) of the above lighting (6) passes through the lighting polarizing means (600) to become light (610') and is directly incident on the reflective polarizing film (200).
- the polarizing means (600) for lighting has a transmission axis that coincides with the direction of the reflection axis (200d) of the reflective polarizing means (200) that is projected (projected) toward the polarizing means (600) for lighting along a reverse path (-610') that follows the reverse path of the path of the light (610) irradiated toward the reflective polarizing means (200) from the light (6).
- a transmission axis that coincides with the direction of the reflection axis (200d) of the reflective polarizing means (200) that is projected (projected) toward the polarizing means (600) for lighting along a reverse path (-610') that follows the reverse path of the path of the light (610) irradiated toward the reflective polarizing means (200) from the light (6).
- the polarization direction of light (610') transmitted from the above lighting (6) and through the above lighting polarizing means (600) coincides with the direction (200d) of the reflection axis of the reflective polarizing film (200) when the light (610') reaches the reflective polarizing film (200), and only causes reflection without transmitting through the reflective polarizing film (200).
- FIG. 22 is a drawing showing the structure of a polarization system (2000) having different reflectivities toward both spaces according to the second aspect of the present invention.
- a polarization system (2000) having different reflectivities toward both spaces according to a second aspect of the present invention includes a semi-reflective means (400) and a circular polarization means (300) which are placed on planes parallel to each other.
- Figure 22 (a) shows a case where light from a second space (S2) is incident on the semi-reflective means (400), passes through it, is incident on the circularly polarized means (300), passes through it, and reaches the first space (S1)
- Figure 22 (b) shows a case where light from a first space (S1) is incident on the circularly polarized means (300), passes through it, is incident on the semi-reflective means (400), passes through it, and reaches the second space (S2) along the same optical path as the light in Figure 22 (a).
- the first plane (300p), which is the plane on which the circular polarizing means (300) is placed, and the second plane (400p), which is the plane on which the semi-reflective film (400) is placed, are parallel to each other.
- the first space (S1) and the second space (S2) are positioned in the direction in which the circular polarization means (300), the semi-reflective means (400), and the circular polarization means (300) are respectively positioned. That is, the semi-reflective means (400) is positioned on the side facing the second space (S2), and the circular polarization means (300) is positioned on the side facing the first space (S1).
- the circular polarization means (300) and the semi-reflective means (400) are arranged on the side facing the first space (S1) and the side facing the second space (S2), respectively, which means that they are arranged relatively to each other.
- a transparent window (W) is installed at the boundary between the first space (S1) and the second space (S2), and a circular polarizing means (300) and a semi-reflective means (400) are installed at various locations with respect to the transparent window (W).
- the positions where the circular polarization means (300) and the semi-reflective means (400) are arranged in each case are different, but the semi-reflective means (400) is arranged relatively toward the second space (S2) compared to the circular polarization means (300), and the circular polarization means (300) is arranged relatively toward the first space (S1) compared to the semi-reflective means (400).
- the first space (S1) is an object viewed by a person staying in the second space (S2) through the semi-reflective means (400) and the circular polarizing means (300).
- the second space (S2) is an object viewed by a person staying in the first space (S1) through the circular polarization means (300) and the semi-reflective means (400).
- object of view literally means something to be viewed, as described in the polarization system (1000) having different reflectivities toward both spaces according to the first aspect of the present invention, and does not necessarily imply something to be seen.
- the person staying in the first space (S1) or second space (S2) does not necessarily mean a person actually staying in that space, but rather means that a means of viewing can be located.
- the person staying in the first space (S1) or second space (S2) is usually a person, but may also be a device that takes pictures or videos, such as a CCTV. These are the same as the cases described with reference to FIG. 1.
- the semi-reflective means (400) refers to a method of transmitting some of the incident light and reflecting some of it. It is usually made by depositing a metal such as aluminum on a plastic base film to form a semi-reflective layer that transmits some of the incident light and reflects some of it.
- the circular polarizing means (300) is configured such that incident light becomes circularly polarized as it passes through it, and is typically configured by attaching a phase retardation means such as a phase retardation film that retards the phase by 1/4 wavelength to a polarizing film.
- FIG. 22 (b) shows a circular polarizing means (300) in which a phase delay means (330) is attached to a polarizing film (310) in relation to the circular polarizing means (300).
- the phase delay means (330) of the circular polarizing means (300) is arranged toward the semi-reflective means (400), so that when light travels from the first space (S1) to the second space (S2), light that starts from the first space and passes through the circular polarizing means (300) becomes circularly polarized and is incident on the semi-reflective means (400).
- the semi-reflective means (400) and the circular polarizing means (300) will mainly be used in the form of a film, but a sheet or plate form is not excluded.
- Film and sheet or plate are relative concepts based on their thickness, with film being the thinnest, followed by sheet and then plate in that order.
- One standard is that film is 0.25 mm or less in thickness, sheet is 0.25 mm to 1 mm or less, and anything thicker is classified as plate.
- the semi-reflective film (400) may have a structure in which a metal deposition layer (420) is formed on a protective layer (410) and a protective layer (430) is attached again to the metal deposition layer (420).
- the protective layer (430) facing the circularly polarizing film (300) must not have birefringence. This is because only then can the direction of circularly polarized light that passes through the circularly polarizing film (300) be reversed when reflected by the semi-reflective film (400).
- the above protective layer (430) must be made of a material that does not have birefringence, such as a film made of triacetyl cellulose (TAC).
- TAC triacetyl cellulose
- the semi-reflective film (400) may be used in which only the metal deposition layer (420) is formed on the protective layer (410) as shown in (b) of Fig. 24, and in this case, if the circularly polarizing film (300) is positioned in the direction where there is no protective layer, the direction of the circularly polarized light passing through the circularly polarizing film (300) may be reversed when reflected from the semi-reflective film (400), so there is no problem.
- the surface (403) of the semi-reflective film (400) facing the circularly polarizing film (300) has no birefringence, so that when light that has passed through the circularly polarizing film (300) becomes circularly polarized and is reflected by the semi-reflective film (400), the direction of circular polarization becomes reversed.
- the light passing through the semi-reflective film (400) is indicated by the symbol 40', and the reflected light is indicated by the symbol 40'''.
- the light (40') that has passed through the semi-reflective film (400) passes through the circular polarizing film (300) and enters the first space (S1), and the light thus entered is indicated by the symbol 40".
- unpolarized light (30) incident on the circularly polarized film (300) from the first space (S1) becomes circularly polarized as it passes through the circularly polarized film (300), and the circularly polarized light is indicated by the symbol 30'.
- this light (30') encounters the semi-reflective film (400), and then some of it passes through the semi-reflective film (400) and enters the second space (S2) to become light (30'''), and some of it is reflected and the direction of its circular polarization becomes reversed.
- the first reflectivity which is the reflectivity of light that departs from the first space (S1) toward the circular polarization means (300) and the semi-reflective means (300) and is reflected from these circular polarization means (300) and semi-reflective means (400) to the first space (S1)
- the second reflectivity which is the reflectivity of light that departs from the second space (S2) toward the semi-reflective means (400) and the circular polarization means (300) and is reflected from these semi-reflective means (400) and the circular polarization means (300) to the second space (S2)
- the second reflectivity is significantly higher than the first reflectivity.
- the view of the first space (S1) is impaired due to strong reflection caused by high reflectivity, resulting in a view blocking effect.
- the view of the second space (S2) is not obstructed (view obstructed) by reflection caused by low reflectivity.
- the light (30") introduced from the first space (S1) to the second space (S2) is not clearly visible due to the reflected light (40''') from the semi-reflective film (400), whereas when looking at the second space (S2) from the first space (S1), the reflection from the circular polarizing means (300) and the semi-reflective film (400) is absent or minimal except for surface reflection, so the light (40") introduced from the second space (S2) to the first space (S1) is clearly visible.
- the present invention enables the reflectivity of the reflected light reflected toward each space to be different for the first space (S1) and the second space (S2), which are objects of mutual observation for those staying in each space.
- a means for transmitting light is positioned at the boundary between the first space (S1) and the second space (S2), and the semi-reflective film (400) and the circular polarizing film (300) can be placed on the means for transmitting light.
- the means through which the light transmits may be a medium through which light transmits, such as transparent glass, and at least one of its surfaces may be flat.
- the semi-reflective film (400) and the circular polarizing film (300) are arranged parallel to the medium through which the light passes.
- a building (9) is provided as in FIG. 3 and a transparent window (W) is installed on the outer wall of the building (9)
- the space inside the building becomes a first space (S1) and the space outside the building becomes a second space (S2)
- the transparent window (W) becomes a medium through which light is transmitted at the boundary between the first space (S1) and the second space (S2)
- the semi-reflective film (400) of the polarizing system (2000) according to the present invention which have different reflectivities toward the two spaces, and the circular polarizing film (300) are arranged parallel to the transparent window (W).
- the means through which light passes located at the boundary between the first space (S1) and the second space (S2), is generally a medium such as the aforementioned transparent window (W), but is not necessarily so and may be an empty space.
- a space can be formed through the outer wall of the building (9), and a polarization system (2000) having different reflectances toward both spaces according to the present invention can be installed therein.
- a space is formed to install a transparent window (W) on the outer wall of a building, but instead of installing the transparent window (W) in this space, a polarizing system (2000) having different reflectances toward both spaces according to the present invention can be installed.
- the surface (301) of the circular polarizing film (300) facing the first space (S1) can be subjected to an anti-reflection treatment, and in this case, surface reflection that may occur in the circular polarizing film (300) when introduced from the first space (S1) can be reduced.
- an anti-reflection coating can be applied or a film with an anti-reflection coating can be attached.
- the semi-reflective film (400) and the circular polarizing film (300) may be spaced apart from each other, but may be attached to each other.
- the semi-reflective film (400) and the circularly polarizing film (300) can be attached to each other via a transparent adhesive layer (34), and it is preferable that the refractive index of the transparent adhesive layer (34) has a value between the refractive index of the semi-reflective film (400) and the refractive index of the phase retardation film of the circularly polarizing film (300). This is to reduce internal reflection.
- the above transparent adhesive layer (34) must also not have birefringence.
- the semi-reflective film (400) and the circular polarizing film (300) attached to each other are attached to the surface (W11) facing the first space (S1) of the transparent window (W) of Fig. 3.
- the transparent window (W) of FIG. 25 is a double transparent window having a first transparent window (W1) and a second transparent window (W2), as shown in FIG. 26, and the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side, it is preferable that the semi-reflective film (400) and the circular polarizing film (300) attached to each other are attached to the surface (W12) of the first transparent window (W1) facing the second space (S2).
- the transparent window (W) of FIG. 3 is a double transparent window having a first transparent window (W1) and a second transparent window (W2), and the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side, as shown in FIG. 27, it is preferable that the semi-reflective film (400) be attached to a surface (W21) of the second transparent window (W2) facing the first space (S1), and the circularly polarizing film (300) be attached to a surface (W12) of the first transparent window (W1) facing the second space (S2).
- the arrangement of the semi-reflective film (400) and the circular polarizing film (300) shown in FIGS. 25, 26 and 27 relative to the transparent window (W) is merely a preferred embodiment that selects an environment in which these films (300) (400) are well protected, and these films (300) (400) can be freely arranged under the conditions described with reference to FIG. 22.
- FIG. 28 is a drawing showing the structure of a polarization system (3000) having different reflectivities toward both spaces according to the third aspect of the present invention.
- This case has an additional configuration described below in addition to the polarization system (1000) having different reflectivities toward both spaces according to the first aspect of the present invention.
- the polarization system (3000) having different reflectances toward both spaces has a color polarization means (900) arranged more toward the second space (S2) than the reflective polarization means (200).
- the color polarization means (900) and the absorption type polarization means (100) are arranged relative to each other, with the color polarization means (900) being arranged on the side facing the second space (S2), the absorption type polarization means (100) being arranged on the side facing the first space (S1), and the reflection type polarization means (200) being arranged between the color polarization means (900) and the absorption type polarization means (100).
- a person staying in the second space (S2) looks at the first space (S1) through the color polarization means (900), the reflective polarization means (200), and the absorbent polarization means (100), and a person staying in the first space (S1) looks at the second space (S2) through the absorbent polarization means (100), the reflective polarization means (200), and the color polarization means (900).
- the first space (S1) becomes an object that a person staying in the second space (S2) views through the color polarization means (900), the reflective polarization means (200), and the absorbent polarization means (100), and the second space (S2) becomes an object that a person staying in the first space (S1) views through the absorbent polarization means (100), the reflective polarization means (200), and the color polarization means (900).
- the object of viewing literally means viewing, and does not necessarily imply that something is visible, as in the case of the first aspect of the present invention.
- the person staying in the first space (S1) or the second space (S1) does not necessarily mean a person actually staying in the space, but means that a means of viewing can be located, and also, as in the first aspect, it can be a device that takes pictures or videos, such as a CCTV, rather than a person.
- the third plane (900p) on which the color polarization means (900) is placed and the second plane (200p) on which the reflective polarization means (200) is placed are parallel to each other, and accordingly, the first plane (100p) on which the absorption polarization means (100) is placed, the second plane (200p) on which the reflective polarization means (200) is placed, and the third plane (900p) on which the color polarization means (900) is placed are parallel to each other. (See Fig. 2)
- the directions of the transmission axes (900a) (200a) of the color polarizing means (900) and the reflective polarizing means (200) are parallel to each other.
- the angle formed by the directions of the transmission axes (900a) (200a) is 0°.
- the directions of the transmission axes (200a)(100a) of the reflective polarizing means (200) and the absorption polarizing means (100) are parallel to each other, and the angle formed by the directions of these transmission axes (200a)(100a) is 0°. (See (c) of Fig. 8)
- the directions of the transmission axes (900a), (200a), and (100a) are parallel to each other, but this is not necessarily the case. This will be described later.
- the color polarizing means (900) refers to a polarizing means that, when light having a polarization direction parallel to the direction of the transmission axis (900a) is incident, light of all wavelengths in the visible light is transmitted, and when light having a polarization direction parallel to the direction of the absorption axis (the direction perpendicular to the transmission axis) is incident, only light having a wavelength of a specific wavelength (or a specific wavelength range in the visible light) is transmitted and the rest is absorbed.
- the color polarizing means (900) has a characteristic of transmitting light polarized in the direction of the absorption axis in addition to the direction of the transmission axis (900a) for a specific color (specific wavelength or specific wavelength range). That is, light polarized in the direction of the transmission axis transmits light of all wavelengths, while light polarized in the direction of the absorption axis transmits light of a specific color (or specific wavelength or specific wavelength range) (hereinafter, “color light of the color polarizing film”) and absorbs light of the remaining wavelengths (remaining colors).
- these color polarizing means (900), reflective polarizing means (200), and absorption polarizing means (100) are often used in the form of a film, but those in the form of a sheet or plate are not excluded.
- color polarizing means (900), reflective polarizing means (200), and absorption polarizing means (100) are used in the form of films.
- Fig. 28 (a) shows the journey of unpolarized light (90) from the second space (S2) to the first space (S1) by entering a polarization system (3000) with different reflectances toward both spaces.
- unpolarized light (90) from the second space (S2) is incident on the color polarizing film (900), passes through it, becomes light (90'), and this light (90') passes through the reflective polarizing film (200) to become light (90"), and this light (90") passes through the absorbent polarizing film (100) to become light (90"') and reaches the first space (S1).
- the light (90') passes through the reflective polarizing film (200), but is also reflected by the reflective polarizing film (200), and the reflected light becomes light (90'R), passes through the color polarizing film (900) again, and becomes light (90"R) that arrives at the second space (S2).
- FIG. 28 (b) shows the journey of unpolarized light (10) from the first space (S1) to the second space (S2) along the same optical path as that of FIG. 28 (a), where the light (10) enters a polarization system (3000) having different reflectivities toward the two spaces, and then reaches the second space (S2).
- Unpolarized light (10) from the first space (S1) is incident on the absorptive polarizing film (100), passes through it, and becomes light (10'), and this light (10') passes through the reflective polarizing film (200) to become light (10"), and this light (10") passes through the color polarizing film (900) to become light (10"') and reaches the second space (S2).
- the direction of the transmission axis of the color polarizing film (900), the reflective polarizing film (200), and the absorbent polarizing film (100) is indicated by ⁇ as a direction perpendicular to the paper surface.
- the direction of their absorption axis (color polarizing film, absorbent polarizing film) or reflection axis (reflective polarizing film) is indicated by a vertical arrow ( ⁇ ).
- the above light (90') has light of all wavelengths of visible light having a polarization direction ( ⁇ ) of the transmission axis of the color polarizing film (900) and light of the color of the color polarizing film (900) having a polarization direction ( ⁇ ) of the absorption axis of the color polarizing film (900).
- light having a polarization direction ( ⁇ ) of the transmission axis of the color polarizing film (900) transmits through the reflective polarizing film (200) and becomes light (90") because the direction ( ⁇ ) of the transmission axis of the reflective polarizing film (200) is parallel to the direction ( ⁇ ) of the transmission axis of the color polarizing film.
- the light (90") passes through the above-mentioned absorption-type polarizing film (100) and reaches the first space (S1) to become light (90"').
- the color of the color polarizing film (900) having a polarization direction ( ⁇ ) of the absorption axis of the color polarizing film (900) has a polarization direction that is parallel to the direction ( ⁇ ) of the reflection axis of the reflective polarizing means (200). Therefore, this light is reflected by the reflective polarizing means (200) to become light (90'R), and this light (90'R) has a polarization direction that is parallel to the direction ( ⁇ ) of the absorption axis of the color polarizing film (900) and has the color of the color polarizing film (900).
- the light (90'R) passes through the absorption axis of the color polarizing film (900) again and becomes light (90"R) and reaches the second space (S2), and the light (90"R) takes on the color of the color polarizing film (900).
- unpolarized light (10) starting from the first space (S1) passes through the absorbent polarizing film (100), and light having a polarization direction parallel to the direction ( ⁇ ) of the transmission axis of the absorbent polarizing film (100) passes through it and becomes light (10').
- the above light (10') has a polarization direction parallel to the direction ( ⁇ ) of the transmission axis of the above absorbing polarizing film (100), and the directions ( ⁇ ) of the transmission axes of the above reflecting polarizing film (200) and the color polarizing film (900) are parallel to the direction ( ⁇ ) of the transmission axis of the above absorbing polarizing film (100). Therefore, the light (10') becomes light (10") by passing through the reflecting polarizing film (200) and becomes light (10"') by passing through the color polarizing film (900), and the directions ( ⁇ ) of the transmission axes of these lights (10') (10") (10"') are all parallel.
- the first reflectivity which is the reflectivity for light that departs from the first space (S1) toward the absorption-type polarization means (100), the reflection-type polarization means (200), and the color polarization means (900) and is reflected from the absorption-type polarization means (100), the reflection-type polarization means (200), and the color polarization means (900) to the first space (S1)
- the second reflectivity which is the reflectivity for light that departs from the second space (S2) toward the color polarization means (900), the reflection-type polarization means (200), and the absorption-type polarization means (100) and is reflected from the color polarization means (900), the reflection-type polarization means (200), and the absorption-type polarization means (100) to the second space (S2)
- the second reflectance is higher than the first reflectance.
- the view of the first space (S1) is worsened by reflected light due to high reflectivity for a specific wavelength, resulting in a line-of-sight blocking effect.
- the view of the second space (S2) is not obstructed (view obstructed) by reflected light due to low reflectivity.
- the light (10"') entering the second space (S2) from the first space (S1) is obstructed by the reflected light (90"R), but when the second space (S2) is viewed from the first space (S1), the reflection from the absorptive polarizing film (100), the reflective polarizing film (200), or the color polarizing film (900) is absent or minimal, so the light (90"') entering the first space (S1) from the second space (S2) is not obstructed by the reflected light.
- the reflected light (90"R) when looking at the first space (S1) from the second space (S2), the reflected light (90"R) has the color of the color polarizing film (900), and the part where the color polarizing film (900) is installed appears to have a vivid color.
- the reflected light (90"R) since the reflected light (90"R) has only a specific wavelength compared to the case of the first aspect where the reflected light has all wavelengths, the intensity of the reflected light (90"R) is reduced, and thus the effect of blocking the line of sight may be weakened compared to the first aspect.
- the color of the color polarizing film (900) should not be visible, but in reality, due to limitations in the precision, manufacturing method, or structure of the color polarizing film (900), the color of the color polarizing film may be visible, albeit weakly.
- the third aspect of the present invention is to make the first space (S1) and the second space (S2) have different reflectances reflected toward each space, so that the first space (S1) appears colored when viewed from the second space (S2).
- a means for transmitting light is positioned at the boundary between the first space (S1) and the second space (S2), and the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) can be arranged on the means for transmitting light.
- a transparent window (W) or an empty space was mentioned as an example of a means through which the light transmits
- the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) are arranged in the transparent window (W) will be shown.
- the means through which the light transmits may be an empty space. That is, referring to the building (9) of Fig. 3, a perforated space may be formed in the outer wall of the building (9), and a polarizing system (3000) having different reflectivities toward both spaces according to the present invention may be installed therein. In this way, a polarizing system (3000) having different reflectivities toward both spaces according to the third aspect of the present invention may be installed in any space without installing a specific medium through which light transmits, such as a transparent window (W).
- a specific medium through which light transmits such as a transparent window (W).
- Fig. 31 shows a transparent window (W) installed on an exterior wall of a building, etc., in which the color polarizing film (900) and the reflective polarizing film (200) are attached to each other and are attached to a surface (W12) facing the second space (S2), and the absorptive polarizing film (100) is attached to a surface (W11) facing the first space (S1).
- the second space (S2) will be the exterior of the building
- the first space (S1) will be the interior of the building.
- Fig. 32 shows a case where a double transparent window (W) having a first transparent window (W1) and a second transparent window (W2) is provided on the outer wall of a building, wherein the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side.
- the second space (S2) will be the exterior of the building
- the first space (S1) will be the interior of the building.
- the color polarizing film (900) and the reflective polarizing film (200) attached to each other are attached to the surface (W21) of the second transparent window (W2) facing the first space (S1), and the absorptive polarizing film (100) is attached to the surface (W12) of the first transparent window (W1) facing the second space (S2).
- the arrangement of the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) shown in FIGS. 31 and 32 relative to the transparent window (W) is merely an example of an environment in which these films (900) (100) (200) are well protected, and these films (900) (100) (200) can be freely arranged under conditions according to the present invention.
- FIGS. 31 and 32 a method of attaching and fixing the film to a glass window or the like is illustrated, but instead of attaching and fixing the film, it may be installed and removed freely in the form of a blind or roller screen, and the present invention includes such a case.
- FIGS. 31 and 32 a color polarizing film (900), a reflective polarizing film (200), and an absorptive polarizing film (100) are shown installed on the front surface of the glass window, but it is of course possible to install them only in a necessary portion of the area.
- the directions of the transmission axes (900a) (200a) of the color polarizing film (900) and the reflective polarizing means (200) are parallel to each other.
- the angle ( ⁇ 2) formed between the direction of the transmission axis (900a) (200a) of the color polarizing film (900) and the reflective polarizing means (200) increases, the color of the aforementioned reflected light (90"R) becomes lighter, and the color of the light (90"') seen in the first space (S1) becomes darker.
- the angle ( ⁇ 2) formed between the direction of the transmission axis (900a) (200a) of the color polarizing film (900) and the reflective polarizing means (200) can be determined according to the applicable situation to obtain the optimal effect.
- the angle ( ⁇ 2) can be adjusted according to the desired color concentration when viewed from both spaces.
- the intensity of the reflected light toward the first space (S1) increases and the intensity of the light passing through the reflective polarizing film (200) and the absorbent polarizing film (100) decreases.
- the angle ( ⁇ 2) formed between the directions of the transmission axes (900a) (200a) of the color polarizing film (900) and the reflective polarizing film (200) and the angle ( ⁇ 1) formed between the directions of the transmission axes (200a) (100a) of the reflective polarizing film (200) and the absorption polarizing film (100) can be adjusted.
- the degree of line of sight blocking, the degree of view, and the desire for color concentration may be different, and accordingly, the angle ( ⁇ 1)( ⁇ 2) formed by the direction of the most optimal transmission axis (900a)(200a)(100a) can be determined.
- the angle ( ⁇ 2) formed by the two when the directions of their transmission axes (900a) (200a) are parallel to each other be within a range of +7° or -7° (including +7° and -7°).
- either or both of the color polarizing film (900) or the reflective polarizing film (200) may have a specific shape for decoration, advertising or information transmission.
- the color polarizing film (900) and the reflective polarizing film (200) may be positioned so that one is located within the area of the other when viewed from the second space (S2), or so that each part overlaps with the other.
- Figure 33 shows a transparent window (W) installed on the exterior wall of a building, in which a color polarizing film (900) having an apple-shaped design and a reflective polarizing film (200) arranged parallel to the color polarizing film and having a transmission axis that coincides with the color polarizing film (900) are installed.
- the color polarizing film (900) is positioned within the area of the reflective polarizing film (200).
- apple-shaped color polarizing films (900) and reflective polarizing films (200) are attached to each other and are attached to the surface (W12) facing the second space of the transparent window (W), and the absorptive polarizing film (100) is attached to the surface (W11) facing the first space of the transparent window (W).
- the apple shape when viewed from the second space (S2), which is the external space of the building, the apple shape is made of a color polarizing film (900), so it has a vivid color, which makes it possible to create excellent visibility and a high aesthetic sense.
- the reflective polarizing film (200) is visible around the apple shape, so the effect of contrasting the surroundings can be enjoyed due to the reflected light of the reflective polarizing film (200).
- the transmission axes of the color polarizing film (900), the reflective polarizing film (200), and the absorbent polarizing film (100) are aligned, so if the efficiency of the color polarizing film (900), the reflective polarizing film (200), and the absorbent polarizing film (100) is ideal and there are no problems such as internal reflection, no additional light loss occurs in the light transmitted through these films (900), (200), and (100), and therefore, there is no difference in the intensity of light transmitted through all of the color polarizing film (900), the reflective polarizing film (200), and the absorbent polarizing film (100), or the intensity of light transmitted through only one of the reflective polarizing film (200) and the absorbent polarizing film (100), and thus such an effect is produced. (Even if there is internal reflection, the effect is not significant, so such an effect can be maintained.)
- Figure 34 shows a case where a color polarizing film (900) is installed on a transparent window (W) and a reflective polarizing film (200) having the shape of letters (APPLE) is installed on the back side thereof.
- a color polarizing film (900) is installed on a transparent window (W) and a reflective polarizing film (200) having the shape of letters (APPLE) is installed on the back side thereof.
- the color polarizing film (900) and the reflective polarizing film (200) are arranged parallel to each other, their transmission axes are coincident, and the reflective polarizing film (200) is positioned within the area of the color polarizing film (900).
- the transmission axes of the color polarizing film (900) and the reflective polarizing film (200) also coincide with the transmission axis of the absorptive polarizing film (100).
- color polarizing films (900) and a reflective polarizing film (200) in the shape of letters (APPLE) are attached to each other and are attached to the surface (W12) facing the second space of the transparent window (W), and the absorptive polarizing film (100) is attached to the surface (W11) facing the first space of the transparent window (W).
- the color light that has passed through the absorption axis introduced from the second space (S2) is reflected by the reflective polarizing film (200) in the shape of the letters (APPLE) and passes through the absorption axis of the color polarizing film (900) again, so that the letters (APPLE) take on a color.
- the color polarizing film (900) there is no reflection in a part that does not correspond to the reflective polarizing film (200) in the shape of the letters (APPLE) (i.e., a part that does not correspond to the letters APPLE), and the letters (APPLE) display a vivid color.
- Figure 35 shows a case where a color polarizing film (900) and a reflective polarizing film (200), each having an elliptical shape but arranged diagonally relative to each other, are attached to each other on a surface (W22) of the transparent window (W) facing the second space (S2), and an absorptive polarizing film (100) is installed on a surface (W11) of the transparent window (W) facing the first space (S2).
- a color polarizing film (900) and a reflective polarizing film (200) each having an elliptical shape but arranged diagonally relative to each other, are attached to each other on a surface (W22) of the transparent window (W) facing the second space (S2), and an absorptive polarizing film (100) is installed on a surface (W11) of the transparent window (W) facing the first space (S2).
- the color polarizing films (900) and reflective polarizing films (200) are arranged as shown in (c) of Fig. 35, which is shown as a perspective view in (a) of Fig. 35.
- the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) are arranged parallel to each other, and their transmission axes (900a) (200a) (100a) are parallel.
- the hatched symbol 920 indicates the overlapping portion of each, the symbol 212 indicates the area of only the non-overlapping reflective polarizing film (200), and the symbol 912 indicates the area of only the non-overlapping color polarizing film (900).
- the area (920) where the color polarizing film (900) and the reflective polarizing film (200) overlap has a vivid color
- the area (912) of the non-overlapping color polarizing film (900) alone should theoretically have no color, but in reality, it may have a light color.
- the area (212) of the non-overlapping reflective polarizing film (200) alone reflected light at all wavelengths is seen.
- the color polarizing film (900), the reflective polarizing means (200), and the absorptive polarizing means (100) are arranged so that one or both of them has a specific shape for decoration, advertising, or information transmission, and further, by positioning one of them within the area of the other or arranging the respective parts to overlap each other, a unique effect can be obtained in which the color, shape, and reflection appear differently when looking at the second space (S2) from the first space (S2), and when looking at the first space (S1) from the second space (S2).
- FIG. 36 is a drawing showing the structure of a polarization system (4000) having different reflectivities toward both spaces according to the fourth aspect of the present invention.
- the fourth aspect of the present invention is to apply the optical principle of making the reflectivity toward both spaces different according to a polarization system including a reflective polarization means (200) and an absorptive polarization means (100) in relation to a transparent solar power generation panel.
- a transparent solar power panel is a solar power panel that generates electricity by receiving sunlight, and is transparent (including translucent) due to light transmission.
- transparent solar power panels have been developed that can generate power by receiving sunlight from both the front and back sides, and thus can increase power generation efficiency by providing light not only to the front side where sunlight is provided but also to the back side.
- transparent solar power generation panels can be installed on transparent windows (W) on the exterior walls of buildings to generate power while allowing people inside the building to view the outside.
- a system is required that can supply light to the back of the transparent solar power generation panel without obstructing the view of the outside from inside the building through the transparent window (W).
- the fourth aspect of the present invention is to satisfy this request.
- a transparent solar power generation panel (990) capable of generating power by receiving light from both sides.
- the polarization system (4000) having different reflectances toward the two spaces above has a reflective polarization means (200) and an absorption polarization means (100) installed together with the transparent solar power generation panel (990).
- the transparent solar power generation panel (990) and the reflective polarizing means (200) are arranged relative to each other, with the transparent solar power generation panel (990) being arranged on the side facing the second space (S2) and the absorbing polarizing means (100) being arranged on the side facing the first space (S1).
- the reflective polarizing means (200) is placed between the transparent solar power generation panel (990) and the absorbing polarizing means (100).
- the second space (S2) is a place where sunlight that is introduced into the transparent solar power generation panel (990) is provided.
- light for power generation of the transparent solar power generation panel (990) is supplied from the second space (S2).
- the light for power generation of the transparent solar power generation panel (990) is typically natural sunlight, but in the present invention, the sunlight includes all light that is artificially supplied for power generation of the transparent solar power generation panel (990) in addition to natural sunlight.
- the first space (S1) is a space in which a person staying in this space (S1) views the second space (S2) through the absorption-type polarization means (100), the reflection-type polarization means (200), and the transparent solar power generation panel (990).
- the person staying in the first space (S1) does not necessarily mean a person actually staying in the space, but means that a means of viewing can be located, and also, it may be a device that takes pictures or videos, such as a CCTV, rather than a person.
- the reflective polarizing means (200) is arranged so that a portion of the sunlight that originates from the second space (S2) and passes through the transparent solar power generation panel (990) is reflected by the reflective polarizing means (200) and passes through the back surface of the solar power generation panel (990) again.
- the plane (990P) on which the transparent solar power generation panel (990) is placed and the plane (200P) on which the reflective polarizing means (200) is placed are parallel to each other. (See Fig. 37)
- the plane (990P) on which the transparent solar power generation panel (990) is placed, the plane (200P) on which the reflective polarizing means (200) is placed, and the plane (100P) on which the absorbing polarizing means (100) is placed are parallel to each other.
- the direction of the transmission axis (200a) of these reflective polarizing means (200) and the direction of the transmission axis of the absorption polarizing means (100) are parallel to each other. That is, the angle formed by the direction of these transmission axes (200a) (100a) is 0°. (See (c) of Fig. 40)
- the directions of the transmission axes (200a) (100a) be parallel to each other, but this is not necessarily the case. This will be described later.
- the reflective polarizing means (200) and the absorbing polarizing means (100) are often in the form of a film, but those in the form of a sheet or plate are not excluded.
- FIG. 36 shows the journey of unpolarized sunlight (20) as it enters the transparent solar power generation panel (990) from the second space (S2) and passes through the reflective polarizing film (200) and the absorbing polarizing film (100) to reach the first space (S1).
- unpolarized sunlight (20) from the second space (S2) is incident on the transparent solar power generation panel (990), passes through it, becomes light (20'), and this light (20') passes through the reflective polarizing film (200) to become light (20"), and this light (20") passes through the absorbing polarizing film (100) to become light (20"') and reaches the first space (S1).
- the light (20') passes through the reflective polarizing film (200), but is also reflected by the reflective polarizing film (200), and the reflected light becomes light (20'R), which again passes through the back of the transparent solar power generation panel (990) to arrive at the second space (S2) and becomes light (20"R).
- FIG. 36 (b) shows the journey of unpolarized light (10) as it passes through the same optical path as that of FIG. 36 (a) as it enters the absorbing polarizing film (100) from the first space (S1), passes through it, passes through the reflective polarizing film (200) and the transparent solar power generation panel (990), and reaches the second space (S2).
- Unpolarized light (10) from the first space (S1) enters the absorbing polarizing film (100), passes through it, and becomes light (10'), and this light (10') passes through the reflective polarizing film (200) and becomes light (10"), and this light (10") passes through the transparent solar power generation panel (990) and becomes light (10"') and reaches the second space (S2).
- Fig. 36 the direction of the transmission axis of the reflective polarizing film (200) and the absorbent polarizing film (100) is indicated by ⁇ as a direction perpendicular to the paper surface.
- ⁇ the direction of their absorption axis (absorbent polarizing film) or reflection axis (reflective polarizing film) is indicated by a vertical arrow ( ⁇ ).
- unpolarized sunlight (20) from the second space (S2) is incident on the transparent solar power generation panel (990) and is transmitted therethrough, and the transparent solar power generation panel (990) generates power.
- the component of light polarized in the direction ( ⁇ ) of the reflection axis of the reflective polarizing film (200) in the above light (20') is reflected by the reflective polarizing film (200) and becomes reflected light (20'R), and the reflected light (20'R) is transmitted through the back surface of the transparent solar power generation panel (990) to generate electricity again in the transparent solar power generation panel (990).
- the reflected light (20'R) is transmitted through the transparent solar power generation panel (990) and becomes light (20"R) and reaches the second space (S2).
- the light component polarized in the direction ( ⁇ ) of the transmission axis of the reflective polarizing film (200) in the light (20') that meets the reflective polarizing film (200) transmits through the reflective polarizing film (200) and becomes light (20").
- the light (20") transmits through the absorbent polarizing film (100) and reaches the first space (S1) and becomes light (20"').
- unpolarized light (10) starting from the first space (S1) passes through the absorbent polarizing film (100), and light having a polarization direction parallel to the direction ( ⁇ ) of the transmission axis of the absorbent polarizing film (100) passes through it and becomes light (10').
- the light (10') above has a polarization direction parallel to the direction ( ⁇ ) of the transmission axis of the absorbent polarizing film (100), and since the direction ( ⁇ ) of the transmission axis of the reflective polarizing film (200) is parallel to the direction ( ⁇ ) of the transmission axis of the absorbent polarizing film (100), the light (10') passes through the reflective polarizing film (200) to become light (10") and passes through the transparent solar power generation panel (990) to become light (10"') and reaches the second space (S2).
- the reflective polarizing film (200) reflected light (20'R) is generated, and the first reflectivity, which is the reflectivity of light that starts from the first space (S1) toward the absorbent polarizing film (100) and the reflective polarizing film (200) and is reflected from the absorbent polarizing film (100) and the reflective polarizing film (200) to the first space (S1), and the second reflectivity, which is the reflectivity of light that passes through the transparent solar power generation panel (990) in the second space (S2) and starts from the reflective polarizing film (200) and the absorbent polarizing film (100) and is reflected from the reflective polarizing film (200) and the absorbent polarizing film (100) to the transparent solar power generation panel (990), are different from each other. That is, the second reflectivity is higher than the first reflectivity.
- the reflected light (20'R) reflected from the reflective polarizing film (200) transmits through the back surface of the transparent solar power generation panel (990) and generates power again, thereby increasing the power generation efficiency of the transparent solar power generation panel (990).
- the fourth aspect of the present invention increases the power generation efficiency of a transparent solar power generation panel (990) while preventing the view from being obstructed by reflected light when looking from the first space (S1) to the second space (S2), thereby making it visible.
- a means for transmitting light is positioned at the boundary between the first space (S1) and the second space (S2), and the transparent solar power generation panel (990), the reflective polarizing film (200), and the absorptive polarizing film (100) can be arranged on the means for transmitting light.
- a transparent window (W) or an empty space was mentioned as an example of a means through which the light transmits, and in the embodiment according to the fourth aspect, an example in which the transparent solar power generation panel (990), the reflective polarizing film (200), and the absorptive polarizing film (100) are arranged in the transparent window (W) will be shown.
- the means through which the light transmits may be an empty space. That is, referring to the building (9) of Fig. 3, a space (not shown) perforated in the outer wall of the building (9) may be formed, and a polarizing system (4000) having different reflectivities toward both spaces according to the present invention may be installed therein. In this way, a polarizing system (4000) having different reflectivities toward both spaces according to the fourth aspect of the present invention may be installed in a space without installing a specific medium through which light transmits, such as a transparent window (W).
- a specific medium through which light transmits such as a transparent window (W).
- Figures 38 and 39 show examples of a polarizing system (4000) having different reflectances toward both spaces according to the fourth aspect of the present invention installed on a transparent window (W) installed on the exterior wall of a building (9).
- the exterior space of the building (9) forms a second space (S2) where sunlight is provided
- the interior of the building (9) forms a first space (S1) which is a space that views the second space (S2) through the absorption-type polarization means (100), the reflection-type polarization means (200), and the transparent solar power generation panel (990).
- a transparent solar power generation panel (990) is installed on a surface (W12) of the transparent window (W) facing the second space, and a reflective polarizing film (200) and an absorptive polarizing film (100) are attached to each other on a surface (W11) of the transparent window (W) facing the first space (S1).
- the arrangement of the transparent solar power generation panel (990) and the reflective polarizing film (200) and the absorptive polarizing film (100) in relation to the transparent window (W) shown in FIGS. 38 and 39 is merely an example of an environment in which these (990) (100) (200) are well protected, and these (990) (100) (200) can be freely arranged under the conditions according to the present invention.
- FIGS. 38 and 39 a method of attaching and fixing the film to a transparent window (W) or the like is illustrated, but instead of attaching and fixing the film, it may be installed and removed freely in the form of a blind or roller screen, and the present invention includes such a case.
- W transparent window
- FIGS. 38 and 39 show that a transparent solar power generation panel (990), a reflective polarizing film (200), and an absorptive polarizing film (100) are installed on the front of the transparent window (W), but it is of course possible to install them only in a necessary portion of the area.
- the directions of the transmission axes (200a) (100a) of the reflective polarizing means (200) and the absorbing polarizing means (100) are parallel to each other.
- the intensity of the reflected light toward the first space (S1) increases and the intensity of the light transmitting through the reflective polarizing film (200) and the absorbent polarizing film (100) decreases.
- the intensity of the reflected light (20'R) reflected by the reflective solar power generation panel (990) is not affected by the angle ( ⁇ 3) formed by the direction of the transmission axis (200a) (100a) of the reflective polarizing film (200) and the absorbing polarizing film (100).
- the direction of the transmission axis (100a) of the absorption-type polarizing means (100) and the direction of the transmission axis (200a) of the reflective polarizing means (200) be parallel to each other.
- the angle ( ⁇ 3) does not necessarily have to be 0°, and the angle ( ⁇ 3) can be set within an acceptable range according to the situation within a certain range.
- the angle ( ⁇ 3) formed by the direction of the transmission axis (200a) (100a) of the reflective polarizing film (200) and the absorptive polarizing film (100) includes a range of up to +10° or -10° (inclusive of +10° and -10°).
- the present invention provides a polarization system (1000)(2000)(3000)(4000) having different reflectivities toward the space on both sides, and the present invention can be applied in various ways to create various operational effects.
- the line of sight can be blocked, while the view in the opposite direction can be prevented from being obstructed by reflected light.
- one or both of the reflective polarizing means (200) and the absorptive polarizing means (100) have a specific shape for decoration, advertising, or information transmission, and by positioning one of them within the area of the other or arranging the respective parts to overlap each other, a unique effect can be obtained in which the shape and reflection appear differently when looking at the second space (S2) from the first space (S2), and when looking at the first space (S1) from the second space (S2).
- the reflective polarizing means (200) facing the second space has high visibility when viewed from the second space (S2) due to the reflection of light, but in the place where the absorption polarizing means (100) and the reflective polarizing means (200) overlap, there is no obstruction in the view from the first space (S1) to the second space (S2).
- the present invention is applied to an observation room and an investigation room, so that a subject in the investigation room cannot see the observation room, but an investigator in the investigation room can see the observation room, and direct sunlight from the lighting in the investigation room is prevented from reaching the observation room, so that an observer can observe the investigation room better without being disturbed by the lighting.
- the present invention proposes a case in which a color polarizing means (900) is additionally provided, and in this case, when viewed from a second space (S2), it has color, and one or both of the color polarizing means (90) and the reflective polarizing means (200) have a specific shape for decoration, advertising, or information transmission, and further, by positioning one of them within the area of the other or arranging the respective parts to overlap each other, a unique effect can be obtained in which the shape, color, and reflection appear differently when the second space (S2) is viewed from the first space (S2), and when the first space (S1) is viewed from the second space (S2).
- the color polarizing means (900) facing the second space (S2) can create high visibility and aesthetics when viewed from the second space (S2) with the reflected light having color, but in the place where these color polarizing means (900) and the reflective polarizing means (200) overlap, the view from the first space (S1) to the second space (S2) is not obstructed.
- the present invention relates to a transparent solar power generation panel installed between a first space and a second space, and increases power generation efficiency by allowing reflected light to be transmitted through the back of the transparent solar power generation panel in addition to light passing through the transparent solar power generation panel from the first space, while preventing the view from being obstructed by reflected light when looking at the second space from the first space.
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Abstract
Description
본 발명은 양쪽 공간을 향한 반사율이 서로 다른 편광시스템에 관한 것으로서, 본 발명은 양쪽 공간을 향한 반사율이 서로 다름에 따라 다양한 적용 예들과 효과들을 만들어낼 수 있게 된다.The present invention relates to a polarization system having different reflectivities toward both spaces, and the present invention can produce various application examples and effects depending on the different reflectivities toward both spaces.
입사되는 빛 중 일부는 투과하고 일부는 반사하는 반반사필름을 제1공간과 제2공간사이에 설치하여 제2공간으로부터 제1공간은 잘 안보이고 제1공간으로부터 제2공간은 잘 보이게 하는 것이 알려져 있다.It is known that a semi-reflective film that transmits some of the incident light and reflects some of it is installed between the first space and the second space, so that the first space is not visible from the second space and the second space is visible from the first space.
잘 알려진 적용 예는 수사기관에서 조사실(제2공간)의 피조사자를 관찰실(제1공간)에서 관찰할 때 사용되는 것이다. 즉 조사실(제2공간)의 피조사자는 관찰실(제1공간)을 볼 수 없지만, 관찰실(제1공간)의 관찰자는 조사실(제2공간)의 피조사자를 관찰할 수 있는 것이다.A well-known application is when an investigative agency observes a subject in an interrogation room (second space) from an observation room (first space). In other words, the subject in the interrogation room (second space) cannot see the observation room (first space), but the observer in the observation room (first space) can observe the subject in the interrogation room (second space).
이것은 투과광보다 반사광이 훨씬 강한 경우에 사람의 눈이 강한 반사광으로 인하여 투과광을 인식할 수 없는 것을 이용한 것으로서, 제1공간은 어둡게 하여 제1공간으로부터 제2공간으로 나오는 투과광을 줄이고, 제2공간은 햇빛이나 조명 등으로 인하여 밝게 하여 제2공간 쪽에서 반반사필름 쪽으로 진행하여 반반사필름에서 반사되는 반사광을 강하게 하여야 한다.This is done by taking advantage of the fact that the human eye cannot recognize transmitted light due to strong reflected light when the reflected light is much stronger than the transmitted light. The first space should be made dark to reduce the transmitted light coming from the first space to the second space, and the second space should be made bright with sunlight or lighting, etc., so that the reflected light reflected from the semi-reflective film should be strengthened by moving from the second space toward the semi-reflective film.
따라서 제1공간과 제2공간의 조도가 큰 차이가 없거나 동일하거나 제1공간의 조도가 제2공간보다 높은 경우에는 효과가 상실되며, 역으로 제1공간에서는 제2공간이 보이지 않고 제2공간에서는 제1공간이 보이게 되는 반대의 효과가 발생할 수도 있는 것이다.Therefore, if the illuminance of the first space and the second space are not significantly different or are the same, or if the illuminance of the first space is higher than that of the second space, the effect is lost, and conversely, the opposite effect may occur, where the second space is not visible from the first space and the first space is visible from the second space.
이러한 현상은 근본적으로 제1공간과 제2공간의 경계에 설치된 반반사필름이 제1공간과 제2공간 양쪽에서 입사되는 빛에 대하여 모두 동일한 투과율과 동일한 반사율을 가지기 때문에 발생하는 문제이다.This phenomenon is fundamentally a problem that occurs because the semi-reflective film installed at the boundary between the first and second spaces has the same transmittance and reflectance for light incident from both the first and second spaces.
본 발명자의 연구에 따르면, 빛이 투과하는 물체의 동일한 광경로에서 양쪽에서 인입되는 빛에 대하여 서로 다른 투과율을 갖게 하는 것은 이론적으로 불가능하거나 매우 어려우므로, 이러한 문제를 해결하거나 완화하기 위한 방안은 광손실을 비교적 적게 유지하여 제1공간에서 제2공간에 대한 조망이 잘 유지되도록 하면서 제1공간과 제2공간 양쪽으로부터 입사되는 빛에 대하여 그 반사율을 서로 다르게 하는 시스템을 개발하는 것이다. 즉 제1공간과 제2공간의 사이에 위치하여 제1공간과 제2공간으로부터 입사되는 빛에 대한 반사율을 서로 다르게 하는 시스템을 개발하는 것이다. According to the inventor's research, it is theoretically impossible or very difficult to make the light entering from both sides of the same optical path of an object through which light passes have different transmittances, and therefore, a method for solving or alleviating this problem is to develop a system that makes the reflectances of light incident from both the first and second spaces different while maintaining a relatively small optical loss and a good view from the first space to the second space. In other words, a system is developed that is located between the first and second spaces and makes the reflectances of light incident from the first and second spaces different.
이러한 시스템에서는 제1공간을 향한 반사율은 낮게 하고 제2공간을 향한 반사율은 높게 할 수 있을 것이고, 그렇다면 제1공간을 향하여 반사되는 반사광의 영향은 미미하게 되고, 제2공간을 향하여 반사되는 반사광의 영향은 크게 되어, 제1공간에서 제2공간을 볼 때 그 조망은 반사광으로 인한 방해가 없게 되고, 제2공간으로부터 제1공간을 볼 때는 반사광의 방해로 조망이 악화되는 시선차단효과가 발생할 수 있게 된다.In such a system, the reflectivity toward the first space can be made low and the reflectivity toward the second space can be made high. In this case, the influence of the reflected light reflected toward the first space becomes minimal, and the influence of the reflected light reflected toward the second space becomes large, so that when looking at the second space from the first space, the view is not obstructed by the reflected light, but when looking at the first space from the second space, the view may be obstructed by the reflected light, which may cause a line-of-sight blocking effect.
본 발명자의 연구에 따르면, 이렇게 양쪽 공간을 향한 각각의 반사율이 서로 다른 시스템이 개발되면 이것은 전술한 효과를 기본으로 하면서 다양한 분야에 적용되어 추가적인 효과를 창출 할 수 있다.According to the inventor's research, if a system is developed in which each of the two spaces has different reflectivity, it can be applied to various fields to create additional effects based on the aforementioned effects.
예를 들어, 건물의 외벽에 설치되는 유리창에 이를 적용하여 건물의 외부에서는 건물의 내부를 보기 어렵게 하고, 건물의 내부에서는 건물의 외부를 조망하는데 지장이 없도록 적용할 수 있을 것이다.For example, this could be applied to glass windows installed on the exterior walls of a building to make it difficult to see the interior of the building from the outside, while allowing the exterior of the building to be viewed from the inside.
또한 건물의 외벽에 설치되는 유리창에 대하여 이를 적용하여 장식, 광고 또는 정보전달을 위한 글자, 도안 등을 설치하고, 이들 글자, 도안 등은 외부의 반사광으로 인하여 건물외부에서는 눈에 잘 뜨이게 되지만, 건물내부에서 상기 유리창을 통하여 외부를 볼 때는 상기 유리창에 설치된 글자, 도안 등이 외부를 보는 조망에 방해를 이루지 않게 하는 등의 효과를 거둘 수 있다.In addition, by applying this to glass windows installed on the exterior walls of buildings, letters, designs, etc. for decoration, advertising, or information delivery can be installed, and these letters, designs, etc. are easily visible from the outside of the building due to external reflected light, but when looking outside through the glass windows from inside the building, the letters, designs, etc. installed on the glass windows can have the effect of not obstructing the view of the outside.
한편으로, 이러한 효과를 어느 정도 유지하면서 건물의 외벽에 설치된 유리창에 설치되는 장식, 광고 또는 정보전달을 위한 글자, 도안 등이 컬러를 띨 수 있게 하여 미감을 증대시키고 시인성과 광고효과를 증대시킬 수 있다.On the one hand, by maintaining this effect to a certain extent, letters, designs, etc. for decoration, advertisement, or information delivery installed on glass windows installed on the exterior walls of buildings can be colored to enhance aesthetics and increase visibility and advertising effects.
다른 예로서는 전술한 관찰실과 조사실의 경우, 양쪽 공간을 향한 반사율을 다르게 하는 시스템을 적용하여 조사실의 피조사자는 관찰실을 볼 수 없지만, 조사실에 머무는 조사자는 관찰실을 볼 수 있게 할 수 있으며, 관찰실의 관찰자는 조사실의 조명의 영향을 받지 않고 조사실을 관찰할 수 있게 할 수 있다.As another example, in the case of the aforementioned observation room and investigation room, a system that makes the reflectance toward the two spaces different can be applied so that the subject in the investigation room cannot see the observation room, but the investigator staying in the investigation room can see the observation room, and the observer in the observation room can observe the investigation room without being affected by the lighting of the investigation room.
그러므로 이렇게 양쪽 공간을 향한 각각의 반사율이 서로 다른 시스템의 개발이 요청되는데, 본 발명은 이러한 요청을 만족시킨다.Therefore, the development of a system with different reflectivity toward each space is required, and the present invention satisfies this request.
한편으로 제1공간과 제2공간의 사이에 설치되는 투명의 태양광 발전 패널과 관련되어 상기 투명의 태양광 발전 패널의 발전효율을 높이면서, 투명의 태양광 발전 패널을 통하여 외부를 조망을 할 때 건물 내부의 빛에 의해 건물의 내부로 반사되어지는 반사광으로 인하여 조망이 방해받지 않을 필요가 있다.On the one hand, in relation to the transparent solar power generation panel installed between the first space and the second space, it is necessary to increase the power generation efficiency of the transparent solar power generation panel, and at the same time, when looking outside through the transparent solar power generation panel, the view must not be obstructed by reflected light reflected into the interior of the building by light inside the building.
예를 들어, 건물의 외벽의 창에 투명의 태양광 발전패널이 설치되었을 때, 건물의 외부로부터 투명의 태양광 발전 패널로 공급되는 빛에 더하여 상기 투명의 태양광 발전 패널의 뒷면으로도 반사를 통하여 빛을 공급하여 발전효율을 높이면서 건물의 내부에서 창을 통하여 외부를 바라보는 조망이 반사광으로 방해받지 않을 수 있는 시스템이 요청되는 것이다.For example, when a transparent solar power generation panel is installed on a window of an exterior wall of a building, a system is required that supplies light through reflection to the back of the transparent solar power generation panel in addition to the light supplied from the outside of the building to the transparent solar power generation panel, thereby increasing power generation efficiency, while ensuring that the view of the outside through the window from the inside of the building is not obstructed by reflected light.
본 발명은 또한 이러한 요청을 만족시킨다.The present invention also satisfies these needs.
그러므로 본 발명은 편광현상을 이용하여 상호간에 바라봄의 대상이 되는 두 개의 공간의 사이에서 양쪽 공간을 향한 반사율을 서로 다르게 할 수 있는 편광시스템을 제공하는 것이다.Therefore, the present invention provides a polarization system that can make the reflectance toward the two spaces between the two spaces that are objects of mutual viewing different from each other by utilizing the polarization phenomenon.
또한, 본 발명은 양쪽 공간을 향한 반사율을 서로 다르게 하면서, 한쪽 공간 측으로의 반사광만 컬러를 띠게 하고 투과광은 컬러를 띄지 않게(또는 적게 띄도록) 할 수 있는 편광시스템을 제공할 수 있다.In addition, the present invention can provide a polarization system that can make only the reflected light toward one space have a color while making the transmitted light not have a color (or have a small color) while making the reflectance toward both spaces different from each other.
나아가서, 본 발명은 제1공간과 제2공간의 사이에 설치되는 투명의 태양광 발전 패널과 관련되어 상기 투명의 태양광 발전 패널의 발전효율을 높이면서, 투명의 태양광 발전 패널을 통하여 외부를 바라보는 조망이 반사광으로 방해받지 않도록 하는 편광시스템을 제공할 수 있다.Furthermore, the present invention relates to a transparent solar power generation panel installed between a first space and a second space, and can provide a polarization system that increases the power generation efficiency of the transparent solar power generation panel while preventing the view of the outside through the transparent solar power generation panel from being obstructed by reflected light.
본 발명자의 조사에 따르면 본 발명과 관련된 선행기술로 가장 근접한 것은 전술한 제1공간과 제2공간의 빛이 투과되는 경계부분에 반반사필름과 짙은 색의 필름 등을 결합하여 설치하는 것이며, 그 이상의 것은 발견하지 못하였다.According to the inventor's research, the closest prior art related to the present invention is one that combines and installs a semi-reflective film and a dark-colored film at the boundary between the first space and the second space through which light is transmitted, and nothing more than that has been discovered.
한편, 대한민국 공개특허공보 제10-2021-0032664호의 인테리어 필름을 이용한 외부 시선차단용 블라인드가 발견되었는데 단지 이것은 관련성을 가질 뿐이다.Meanwhile, a blind for blocking external views using interior film was discovered in Korean Patent Publication No. 10-2021-0032664, but this is only related.
본 발명의 목적은 편광현상을 이용하여 상호간에 바라봄의 대상이 되는 제1공간과 제2공간의 사이에서 양쪽 공간을 향한 반사율이 서로 다른 편광시스템 을 제공하는 것이다. The purpose of the present invention is to provide a polarization system in which the reflectivity toward the two spaces between the first space and the second space, which are objects of mutual viewing, is different from each other by utilizing the polarization phenomenon.
이러한 본 발명은 다양한 적용예들을 만들어 낼 수 있고 이에 따라 다양한 작용과 효과를 창출할 수 있게 된다.The present invention can create various applications and thus create various functions and effects.
구체적인 수준에서, 본 발명은 제1공간에서 제2공간을 바라볼 때 제2공간이 보이는 조망이 방해받지 않으면서, 역으로 제2공간에서 제1공간을 바라볼 때 제1공간이 보이는 것이 악화되는 시선차단의 효과가 창출되는 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공하는 것을 목적으로 한다.At a specific level, the present invention aims to provide a polarization system having different reflectances toward both spaces, which creates a view-blocking effect in which the view of the second space is not obstructed when looking at the second space from the first space, while conversely, the view of the first space is worsened when looking at the first space from the second space.
또한, 본 발명은 제1공간과 제2공간 양쪽을 향하여 또는 어느 한쪽을 향하여 장식, 광고 또는 정보전달을 위한 글자, 도안 등을 설치하여 제1공간에서 제2공간을 바라볼 때와 제2공간에서 제1공간을 바라볼 때 그 형태와 반사가 다르게 나타나면서 제1공간에서 제2공간을 바라보는 조망은 방해받지 않는 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공하는 것을 목적으로 한다.In addition, the present invention aims to provide a polarization system with different reflectances toward both spaces, in which letters, designs, etc. for decoration, advertisement, or information delivery are installed toward both or either of the first and second spaces, so that the shape and reflection appear differently when looking at the second space from the first space and when looking at the first space from the second space, while the view looking at the second space from the first space is not obstructed.
나아가서 본 발명은 양쪽 공간을 향한 반사율을 서로 다르게 하면서, 한쪽 공간에서 다른 공간을 바라보았을 때 컬러를 띠게 하고 투과광은 컬러를 띄지 않게(또는 적게 띄도록) 할 수 있는 편광시스템을 제공하는 것을 목적으로 한다. Furthermore, the present invention aims to provide a polarization system that can make the transmitted light appear colored when viewed from one space to another while making the reflectance toward the two spaces different from each other, and making the transmitted light not (or appear less colored).
구체적인 수준에서, 본 발명은 제2공간에서 제1공간을 바라보았을 때 반사광이 컬러를 띠면서 일정 수준 이상의 시선차단의 효과가 발생하고 역으로 제1공간에서 제2공간을 바라볼 때 제2공간이 보이는 조망이 방해받지 않는(또는 방해의 정도가 적은) 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공하는 것을 목적으로 한다.At a specific level, the present invention aims to provide a polarization system with different reflectances toward both spaces, which produces a certain level of visual blocking effect when looking at a first space from a second space by having reflected light colored, and conversely, when looking at a second space from the first space, the view of the second space is not obstructed (or is obstructed to a lesser extent).
또한, 본 발명은 제1공간과 제2공간 양쪽을 향하여 또는 어느 한쪽을 향하여 장식, 광고 또는 정보전달을 위한 글자, 도안 등을 설치하여 제1공간에서 제2공간을 바라볼 때와 제2공간에서 제1공간을 바라볼 때 그 형태와 반사와 색이 다르게 나타나는 독특한 효과를 얻을 수 있는 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공하는 것을 목적으로 한다. In addition, the present invention aims to provide a polarization system having different reflectances toward both spaces, which can obtain a unique effect in which letters, designs, etc. for decoration, advertisement, or information transmission are installed toward both or either of the first and second spaces, and the shape, reflection, and color appear different when the second space is viewed from the first space and when the first space is viewed from the second space.
나아가서, 본 발명은 수사기관 등에서 사용하는 관찰실과 조사실에 본 발명에 따른 양쪽공간을 향한 반사율이 서로 다른 편광시스템을 적용하고, 위 편광시스템의 기능을 확장하여, 조사실의 피조사자는 관찰실을 볼 수 없지만 조사실의 조사관은 관찰실을 볼 수 있고, 관찰실의 관찰자에게 조사실의 조명이 보이지 않아 관찰실의 관찰자는 조사실의 조명으로 인하여 방해를 받지 않고 조사실을 잘 관찰할 수 있도록 하는 관찰실과 조사실의 편광시스템을 제공하는 것을 목적으로 한다.Furthermore, the present invention applies a polarization system having different reflectivities toward both spaces according to the present invention to observation rooms and investigation rooms used by investigative agencies, etc., and expands the function of the polarization system, thereby providing an observation room and an investigation room polarization system in which the subject of the investigation cannot see the observation room but the investigator of the investigation room can see the observation room, and the lighting of the investigation room is not visible to the observer of the observation room, so that the observer of the observation room can observe the investigation room well without being disturbed by the lighting of the investigation room.
더욱 나아가서, 본 발명은 제1공간과 제2공간의 사이에 설치되는 투명의 태양광 발전 패널과 관련되어 상기 투명의 태양광 발전 패널의 발전효율을 높이면서, 제1공간에서 투명의 태양광 발전 패널을 통하여 제2공간을 바라보는 조망이 반사광으로 방해받지 않도록 하는 편광시스템을 제공하는 것을 목적으로 한다.Furthermore, the present invention relates to a transparent solar power generation panel installed between a first space and a second space, and aims to provide a polarization system that increases the power generation efficiency of the transparent solar power generation panel while preventing the view from the first space to the second space through the transparent solar power generation panel from being obstructed by reflected light.
본 발명의 첫 번째 측면은 The first aspect of the present invention is
(a) 각각 서로 평행한 평면에 놓이는 반사형 편광수단과 흡수형 편광수단을 포함하는 편광시스템으로서,(a) A polarization system comprising a reflective polarization means and an absorbing polarization means, each of which is placed on a plane parallel to each other,
(b) 상기 반사형 편광수단과 상기 흡수형 편광수단은 상호간에 상대적으로 상기 반사형 편광수단은 제2공간을 향한 쪽에 배치되고 상기 흡수형 편광수단은 제1공간을 향한 쪽에 배치되며,(b) The reflective polarizing means and the absorbing polarizing means are arranged relative to each other such that the reflective polarizing means is arranged on the side facing the second space and the absorbing polarizing means is arranged on the side facing the first space.
(c1) 상기 제1공간은 상기 제2공간에 머무는 자가 상기 편광시스템을 통하여 바라보는 대상이고, (c1) The first space above is an object viewed by a person staying in the second space through the polarization system,
(c2) 상기 제2공간은 상기 제1공간에 머무는 자가 상기 편광시스템을 통하여 바라보는 대상이며, (c2) The above second space is an object viewed by a person staying in the above first space through the above polarization system.
(d) 상기 반사형 편광수단과 상기 흡수형 편광수단 각각의 투과축의 방향은 상기 제1공간에서 상기 편광시스템을 향하여 출발하여 상기 편광시스템에서 상기 제1공간으로 반사되는 빛에 대한 반사율인 제1반사율과 상기 제2공간에서 상기 편광시스템을 향하여 출발하여 상기 편광시스템에서 상기 제2공간으로 반사되는 빛에 대한 반사율인 제2반사율이 서로 다르게 하는 각도를 상호간에 이루고 있는 것을 특징으로 하는 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공한다.(d) The direction of the transmission axis of each of the reflective polarizing means and the absorptive polarizing means is such that the first reflectivity, which is the reflectivity for light departing from the first space toward the polarizing system and reflected from the polarizing system to the first space, and the second reflectivity, which is the reflectivity for light departing from the second space toward the polarizing system and reflected from the polarizing system to the second space, are different from each other, and a polarizing system is provided with different reflectivities toward both spaces.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사형 편광수단과 흡수형 편광수단의 각각의 투과축의 방향이 상호간에 이루는 각도는 이들 투과축의 방향이 평행일 때를 0°로 하여 이로부터 +25°또는 -25°의 범위 내(+25°와 -25° 포함)에 있는 것이 바람직하다.According to the first aspect of the present invention, it is preferable that the angle formed between the directions of the respective transmission axes of the reflective polarizing means and the absorption polarizing means is within a range of +25° or -25° (including +25° and -25°) from 0° when the directions of the transmission axes are parallel.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사형 편광수단과 흡수형 편광수단의 각각의 투과축의 방향이 상호간에 이루는 각도는 이들 투과축의 방향이 평행일 때를 0°로 하여 이로부터 +10°또는 -10°의 범위 내(+10°와 -10° 포함)에 있는 것이 더욱 바람직하다.According to the first aspect of the present invention, it is more preferable that the angle formed between the directions of the respective transmission axes of the reflective polarizing means and the absorption polarizing means is within a range of +10° or -10° (including +10° and -10°) from 0° when the directions of the transmission axes are parallel.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사형 편광수단과 흡수형 편광수단의 각각의 투과축의 방향이 상호간에 이루는 각도는 0°로서 상기 반사형 편광수단과 흡수형 편광수단의 각각의 투과축의 방향은 상호간에 평행을 이루는 것이 가장 바람직하다.According to the first aspect of the present invention, it is most preferable that the angle formed between the directions of the transmission axes of the reflective polarizing means and the absorbing polarizing means is 0°, and the directions of the transmission axes of the reflective polarizing means and the absorbing polarizing means are parallel to each other.
본 발명의 첫 번째 측면에 따를 경우, According to the first aspect of the present invention,
상기 제1공간과 제2공간의 경계에는 빛이 투과하는 수단이 위치하고, A means for transmitting light is located at the boundary between the first and second spaces.
상기 반사형 편광수단과 상기 흡수형 편광수단은 상기 빛이 투과하는 수단에 배치될 수 있다.The above reflective polarizing means and the above absorption polarizing means can be arranged in the means through which the light transmits.
이러한 경우, 상기 빛이 투과하는 수단은 빛이 투과하는 매질이고 그 표면이 평면인 매질이며, 상기 반사형 편광수단과 상기 흡수형 편광수단은 상기 빛이 투과하는 매질에 평행하게 배치되는 것이 바람직하다.In this case, the means through which the light passes is a medium through which the light passes and a medium whose surface is flat, and it is preferable that the reflective polarizing means and the absorptive polarizing means are arranged parallel to the medium through which the light passes.
본 발명의 첫 번째 측면에 따를 경우, 상기 제1공간은 건물의 내부공간이고, 상기 제2공간은 상기 건물의 외부공간이며, 상기 빛이 투과하는 수단은 상기 건물의 외벽에 설치되는 투명창일 수 있다.According to the first aspect of the present invention, the first space is an internal space of a building, the second space is an external space of the building, and the means for transmitting light may be a transparent window installed on an external wall of the building.
본 발명의 첫 번째 측면에 따를 경우, 상기 빛이 투과하는 수단은 빈 공간일 수 있다.According to the first aspect of the present invention, the means through which the light transmits may be an empty space.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사형 편광수단과 상기 흡수형 편광수단은 상호간에 부착되어 있을 수 있다.According to the first aspect of the present invention, the reflective polarizing means and the absorptive polarizing means may be attached to each other.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사형 편광수단과 상기 흡수형 편광수단은 투명접착층을 개재하여 상호간에 부착될 수 있으며, 상기 투명접착층의 굴절율은 상기 반사형 편광수단의 굴절율과 상기 흡수형 편광수단의 굴절율의 사이의 값을 가진다.According to the first aspect of the present invention, the reflective polarizing means and the absorbing polarizing means can be attached to each other via a transparent adhesive layer, and the refractive index of the transparent adhesive layer has a value between the refractive index of the reflective polarizing means and the refractive index of the absorbing polarizing means.
본 발명의 첫 번째 측면에 따를 경우, According to the first aspect of the present invention,
상기 반사형 편광수단에서 반사된 반사광이 투과되는 반사광투과수단에 상기 반사형 편광수단에서 반사된 반사광이 투과하지 못하도록, In order to prevent the reflected light reflected from the above reflective polarizing means from being transmitted to the reflective light transmitting means,
상기 반사형 편광수단의 반사축의 방향이 상기 반사광을 따라 상기 반사광투과수단에 투영(사영)된 반사축의 방향과 일치하는 반사축의 방향을 가지는 반사형 편광수단이나, 또는, A reflective polarizing means having a direction of a reflection axis that is identical to the direction of a reflection axis projected (projected) onto the reflective light transmitting means along the reflected light, or
상기 반사형 편광수단의 반사축의 방향이 상기 반사광을 따라 상기 반사광투과수단에 투영(사영)된 반사축의 방향과 일치하는 흡수축의 방향을 가지는 흡수형 편광수단을 An absorption-type polarizing means having an absorption axis direction that matches the direction of the reflection axis of the above-mentioned reflection-type polarizing means projected onto the reflection-light transmitting means along the reflected light.
상기 반사광투과수단에 설치하는 것이 바람직하다.It is preferable to install it in the above reflective light transmitting means.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사광투과수단에 설치되는 반사형 편광수단 또는 흡수형 편광수단은 상기 반사광투과수단에 부착되는 것이 바람직하다.According to the first aspect of the present invention, it is preferable that the reflective polarizing means or the absorption polarizing means installed in the reflective light transmitting means be attached to the reflective light transmitting means.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사광투과수단은 빛이 투과하는 매질 또는 빈 공간일 수 있다.According to the first aspect of the present invention, the reflective light transmitting means may be a medium or empty space through which light is transmitted.
본 발명의 첫 번째 측면에 따를 경우, 상기 제2공간을 향한 쪽에 배치된 상기 반사형 편광수단은 그 반사축의 방향이 상기 제2공간을 통과하여 입사되는 외부의 제거하고자 하는 반사광의 편광방향과 일치하도록 설치되는 것이 바람직하다.According to the first aspect of the present invention, it is preferable that the reflective polarizing means arranged on the side facing the second space is installed so that the direction of its reflection axis matches the polarization direction of the external reflected light to be removed that passes through the second space and is incident.
본 발명의 첫 번째 측면에서 상기 제2공간은 조사실이고, 상기 제1공간은 상기 제2공간인 조사실을 관찰하는 관찰실일 수 있다.In the first aspect of the present invention, the second space may be an investigation room, and the first space may be an observation room for observing the investigation room, which is the second space.
이러한 경우에, In these cases,
본 발명의 첫 번째 측면에 따른 상기 양쪽 공간을 향한 반사율이 서로 다른 편광시스템은 The polarization system having different reflectances toward the two spaces according to the first aspect of the present invention
(a) 상기 제2공간인 조사실의 조사관의 눈에 대하여 설치되는 편광수단인 조사용 편광수단을 더욱 가지며,(a) It further has an investigation polarizing means, which is a polarizing means installed for the eyes of the investigator in the investigation room, which is the second space,
(b) 상기 조사용 편광수단의 투과축의 방향은 상기 반사형 편광수단과 상기 흡수형 편광수단의 투과축의 방향과 일치하는 것이 바람직하다.(b) It is preferable that the direction of the transmission axis of the polarizing means for investigation is identical to the direction of the transmission axes of the reflective polarizing means and the absorption polarizing means.
이 경우에, 상기 조사용 편광수단은 상기 조사관이 착용하는 안경형태의 프레임에 설치되는 것이 바람직하다.In this case, it is preferable that the polarizing means for the investigation be installed in a frame in the form of glasses worn by the investigator.
또한, 상기 본 발명의 첫 번째 측면에 따른 상기 양쪽 공간을 향한 반사율이 서로 다른 편광시스템은 In addition, the polarization system having different reflectances toward the two spaces according to the first aspect of the present invention
(a) 상기 조사실에는 조명이 설치되어 있으며,(a) The above investigation room is equipped with lighting,
(b) 상기 조사실의 조명과 상기 반사형 편광수단의 사이에 설치되어 상기 조사실의 조명으로부터 직접 상기 반사형 편광수단으로 방출되는 빛을 가리도록 설치된 조명용 편광수단을 더욱 포함하며, (b) further includes a lighting polarizing means installed between the lighting of the investigation room and the reflective polarizing means to block light emitted directly from the lighting of the investigation room to the reflective polarizing means;
(c) 상기 조명용 편광수단은 상기 반사형 편광수단의 반사축의 방향이 상기 조사실의 조명에서 상기 반사형 편광수단을 향하여 조사되는 빛의 경로의 역경로를 따라 상기 조명용 편광수단을 향하여 투영(사영)된 반사축의 방향과 일치하는 투과축을 가지는 것이 바람직하다.(c) It is preferable that the above-mentioned polarizing means for lighting have a transmission axis that is identical to the direction of the reflection axis of the above-mentioned reflective polarizing means projected toward the above-mentioned polarizing means along the reverse path of the path of light irradiated toward the above-mentioned reflective polarizing means from the lighting of the above-mentioned room.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사형 편광수단과 상기 흡수형 편광수단은 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지는 것이 바람직하다.According to the first aspect of the present invention, it is preferable that one or both of the reflective polarizing means and the absorptive polarizing means have a specific shape for decoration, advertising or information transmission.
또한, 상기 반사형 편광수단과 상기 흡수형 편광수단은 상기 제2공간에서 이들 반사형 편광수단과 상기 흡수평 편광수단을 바라보았을 때 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 적어도 일부분이 상호간에 겹치도록 배치되는 것이 바람직하다.In addition, it is preferable that the reflective polarizing means and the absorbing polarizing means are positioned so that when the reflective polarizing means and the absorbing flat polarizing means are viewed from the second space, one of them is positioned within the area of the other, or at least part of the other overlaps with the other.
본 발명의 첫 번째 측면에 따른 상기 양쪽 공간을 향한 반사율이 서로 다른 편광시스템은 상기 흡수형 편광수단이 상기 제1공간을 향하는 쪽에 상기 흡수형 편광수단과 평행한 평면에 배치되는 색상필름을 더욱 포함하여 이루어지는 것이 바람직하다.It is preferable that the polarization system having different reflectivities toward the two spaces according to the first aspect of the present invention further comprises a color film arranged on a plane parallel to the absorption-type polarization means on the side of the absorption-type polarization means facing the first space.
이 경우에, 상기 색상필름은 상기 흡수형 편광수단에 부착되는 것이 바람직하다.In this case, it is preferable that the color film is attached to the absorption type polarizing means.
본 발명의 첫 번째 측면에 따를 경우, 상기 반사형 편광수단과 상기 흡수형 편광수단은 각각 필름, 시트 또는 판의 형태 중 어느 하나일 수 있다.According to the first aspect of the present invention, the reflective polarizing means and the absorptive polarizing means may each be in the form of a film, a sheet or a plate.
본 발명은, 또한,The present invention also provides:
(a) 관찰실과 조사실의 사이에 설치되는 반사형 편광수단과; (a) a reflective polarizing means installed between the observation room and the investigation room;
(b) 상기 조사실에 설치되는 조명과; (b) Lighting installed in the above investigation room;
(c) 상기 조사실의 조사관의 눈에 대하여 설치되는 편광수단인 조사용 편광수단을 포함하여 이루어지고, (c) It is composed of a polarizing means for investigation, which is a polarizing means installed for the eyes of the investigator in the above investigation room, and
(d) 상기 조사용 편광수단의 투과축의 방향은 상기 반사형 편광수단의 투과축의 방향과 일치하는 것을 특징으로 하는 관찰실과 조사실 시스템을 제공한다.(d) An observation room and investigation room system is provided, characterized in that the direction of the transmission axis of the polarizing means for investigation is identical to the direction of the transmission axis of the reflective polarizing means.
이 경우, 상기 조사용 편광수단은 상기 조사관이 착용하는 안경형태의 프레임의 렌즈에 설치되는 것이 바람직하다.In this case, it is preferable that the polarizing means for the investigation be installed on the lens of a frame in the form of glasses worn by the investigator.
본 발명은 나아가서,The present invention further provides:
(a) 관찰실과 조사실의 사이에 설치되는 반사형 편광수단과; (a) a reflective polarizing means installed between the observation room and the investigation room;
(b) 상기 조사실에 설치되는 조명과;(b) Lighting installed in the above investigation room;
(c) 상기 조사실의 조명과 상기 반사형 편광수단의 사이에 설치되어 상기 조사실의 조명으로부터 직접 상기 반사형 편광수단으로 방출되는 빛을 가리도록 설치된 조명용 편광수단을 포함하여 이루어지며;(c) It comprises a lighting polarizing means installed between the lighting of the investigation room and the reflective polarizing means to block light emitted directly from the lighting of the investigation room to the reflective polarizing means;
(d) 상기 조명용 편광수단은 상기 반사형 편광수단의 반사축의 방향이 상기 조사실의 조명에서 상기 반사형 편광수단을 향하여 조사되는 빛의 경로의 역경로를 따라 상기 조명용 편광수단을 향하여 투영(사영)된 반사축의 방향과 일치하는 투과축을 가지는 것을 특징으로 하는 관찰실과 조사실 시스템을 제공한다.(d) The above-mentioned lighting polarizing means provides an observation room and investigation room system characterized in that the direction of the reflection axis of the above-mentioned reflective polarizing means is coincident with the direction of the reflection axis projected toward the above-mentioned lighting polarizing means along the reverse path of the path of light irradiated toward the above-mentioned reflective polarizing means from the illumination of the above-mentioned investigation room.
본 발명의 첫 번째 측면에 따를 경우, 상기 흡수형 편광필름의 상기 제1공간을 향한 표면에는 반사방지처리가 되어있는 것이 바람직하다.According to the first aspect of the present invention, it is preferable that the surface of the absorptive polarizing film facing the first space is subjected to an anti-reflection treatment.
본 발명의 두 번째 측면은 The second aspect of the present invention is
(a) 각각 서로 평행한 평면에 놓이는 반반사수단과 원편광수단을 포함하여 이루어지는 편광시스템으로서,(a) A polarization system comprising a semi-reflective means and a circular polarizing means, each of which is placed on a plane parallel to each other,
(b) 상기 반반사수단과 상기 원편광수단은 상호간에 상대적으로 상기 반반사수단은 제2공간을 향한 쪽에 배치되고 상기 원편광수단은 제1공간을 향한 쪽에 배치되고, 상기 원편광수단은 투과되는 빛이 원편광을 이루는 쪽이 상기 반반사수단 쪽을 향하여 배치되며, 여기서,(b) The semi-reflective means and the circular polarizing means are arranged relative to each other such that the semi-reflective means is arranged on the side facing the second space and the circular polarizing means is arranged on the side facing the first space, and the circular polarizing means is arranged such that the side of the light transmitted is circularly polarized is arranged toward the semi-reflective means, wherein,
(c1) 상기 제1공간은 상기 제2공간에 머무는 자가 상기 편광시스템을 통하여 바라보는 대상이고, (c1) The first space above is an object viewed by a person staying in the second space through the polarization system,
(c2) 상기 제2공간은 상기 제1공간에 머무는 자가 상기 편광시스템을 통하여 바라보는 대상이며,(c2) The above second space is an object viewed by a person staying in the above first space through the above polarization system.
(d) 상기 제1공간에서 상기 편광시스템을 향하여 출발하여 상기 편광시스템에서 상기 제1공간으로 반사되는 빛에 대한 반사율인 제1반사율과 상기 제2공간에서 상기 편광시스템을 향하여 출발하여 상기 편광시스템에서 상기 제2공간으로 반사되는 빛에 대한 반사율인 제2반사율이 서로 다른 것을 특징으로 하는 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공한다.(d) A polarization system is provided in which the reflectance toward both spaces is different, characterized in that the first reflectance, which is the reflectance for light departing from the first space toward the polarization system and reflected from the polarization system to the first space, and the second reflectance, which is the reflectance for light departing from the second space toward the polarization system and reflected from the polarization system to the second space, are different from each other.
본 발명의 두 번째 측면에 따를 경우, 상기 제1공간과 제2공간의 경계에는 빛이 투과하는 수단이 위치하고, 상기 반반사수단과 상기 원편광수단은 상기 빛이 투과하는 수단에 배치되는 것이 바람직하다.According to the second aspect of the present invention, it is preferable that a means for transmitting light is positioned at the boundary between the first space and the second space, and that the semi-reflective means and the circular polarizing means are arranged on the means for transmitting light.
이러한 경우, 상기 빛이 투과하는 수단은 빛이 투과하는 매질이고 그 표면이 평면인 매질이며, 상기 반반사수단과 상기 원편광수단은 상기 빛이 투과하는 매질에 평행하게 배치되는 것이 바람직하다.In this case, the means through which the light passes is a medium through which the light passes and a medium whose surface is flat, and it is preferable that the semi-reflective means and the circular polarizing means are arranged parallel to the medium through which the light passes.
구체적으로, 상기 제1공간은 건물의 내부공간이고, 상기 제2공간은 상기 건물의 외부공간이며, 상기 빛이 투과하는 매질은 상기 건물의 외벽에 설치되는 투명창인 것이 바람직하다.Specifically, the first space is an internal space of the building, the second space is an external space of the building, and it is preferable that the medium through which light passes is a transparent window installed on the external wall of the building.
본 발명의 두 번째 측면에 따를 경우, 상기 빛이 투과하는 수단은 빈 공간일 수 있다.According to the second aspect of the present invention, the means through which the light transmits may be an empty space.
본 발명의 두 번째 측면에 따를 경우, 상기 반반사수단에서 상기 원편광수단을 향한 쪽의 면은 복굴절성이 없어, 상기 원편광수단을 통과하여 원편광이 된 빛이 입사되어 반사될 때 그 원편광방향이 반대로 된다.According to the second aspect of the present invention, the side of the semi-reflective means facing the circular polarization means has no birefringence, so that when light that has become circularly polarized after passing through the circular polarization means is incident and reflected, the direction of the circular polarization is reversed.
본 발명의 두 번째 측면에 따를 경우, 상기 반반사수단은 상기 원편광필름을 통과하여 원편광이 된 빛이 입사되어 반사되는 쪽에는 보호층을 가지지 않거나, 또는, 복굴절성이 없는 보호층이 설치되어 있는 것이 바람직하다.According to the second aspect of the present invention, it is preferable that the semi-reflective means does not have a protective layer on the side where circularly polarized light passing through the circularly polarizing film is incident and reflected, or a protective layer without birefringence is installed.
본 발명의 두 번째 측면에 따를 경우, 상기 반반사수단과 상기 원편광수단은 상호간에 부착되어 있는 것이 바람직하다.According to the second aspect of the present invention, it is preferable that the semi-reflective means and the circular polarizing means are attached to each other.
본 발명의 두 번째 측면에 따를 경우, 상기 반반사수단과 상기 원편광수단은 투명접착층을 개재하여 상호간에 부착되며, 상기 투명접착층의 굴절율은 상기 반반사수단의 굴절율과 상기 원편광수단의 굴절율의 사이의 값을 가지는 것이 바람직하다.According to the second aspect of the present invention, the semi-reflective means and the circular polarizing means are attached to each other via a transparent adhesive layer, and it is preferable that the refractive index of the transparent adhesive layer has a value between the refractive index of the semi-reflective means and the refractive index of the circular polarizing means.
본 발명의 두 번째 측면에 따를 경우, 상기 반반사수단과 상기 원편광수단은 필름, 시트 또는 판의 형태 중 어느 하나일 수 있다.According to the second aspect of the present invention, the semi-reflective means and the circular polarizing means may be in the form of any one of a film, a sheet or a plate.
본 발명의 두 번째 측면에 따를 경우, 상기 원편광필름의 상기 제1공간을 향한 표면에는 반사방지처리가 되어있는 것이 바람직하다.According to the second aspect of the present invention, it is preferable that the surface of the circular polarizing film facing the first space is subjected to an anti-reflection treatment.
본 발명의 세 번째 측면은 상기 본 발명의 첫 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템에 대하여,The third aspect of the present invention relates to a polarization system having different reflectivities toward both spaces according to the first aspect of the present invention.
(a1) 상기 편광시스템은 상기 반사형 편광수단 보다 더욱 상기 제2공간 쪽을 향하여 배치된 컬러편광수단을 더욱 가지고,(a1) The above polarization system further has a color polarization means arranged toward the second space more than the reflective polarization means,
(a2) 상기 제1공간은 상기 제2공간에 머무는 자가 상기 편광시스템을 통하여 바라보는 대상이고, (a2) The first space above is an object viewed by a person staying in the second space through the polarization system,
(a3) 상기 제2공간은 상기 제1공간에 머무는 자가 상기 편광시스템을 통하여 바라보는 대상이며, (a3) The above second space is an object viewed by a person staying in the above first space through the above polarization system.
(b) 상기 컬러편광수단과 상기 반사형 편광수단은 각각 서로 평행한 평면에 놓이며,(b) The color polarizing means and the reflective polarizing means are each placed on a plane parallel to each other,
(c) 상기 제2공간에서 상기 제1공간을 바라보면 상기 컬러편광수단이 컬러를 띠는 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공한다.(c) When looking at the first space from the second space, the color polarizing means provides a polarizing system in which the reflectance toward the two colored spaces is different.
이러한 경우, 상기 컬러편광수단의 투과축의 방향과 상기 반사형 편광수단의 투과축의 방향이 상호간에 이루는 각도는 이들 투과축의 방향이 평행일 때를 0°로 하여 이로부터 +7°또는 -7°의 범위 내(+7°와 -7° 포함)에 있는 것이 바람직하다.In this case, it is preferable that the angle formed between the direction of the transmission axis of the color polarizing means and the direction of the transmission axis of the reflective polarizing means be within the range of +7° or -7° (including +7° and -7°) from 0° when the directions of the transmission axes are parallel.
나아가서, 상기 컬러편광수단의 투과축의 방향과 상기 반사형 편광수단의 투과축의 방향이 상호간에 이루는 각도는 0°로서 상기 컬러편광수단과 반사형 편광수단의 각각의 투과축의 방향은 상호간에 평행을 이루는 것이 더욱 바람직하다.Furthermore, it is more preferable that the angle formed between the direction of the transmission axis of the color polarizing means and the direction of the transmission axis of the reflective polarizing means is 0°, and the directions of the transmission axes of the color polarizing means and the reflective polarizing means are parallel to each other.
본 발명의 세 번째 측면에서,In a third aspect of the present invention,
상기 제1공간과 제2공간의 경계에는 빛이 투과하는 수단이 위치하고, A means for transmitting light is located at the boundary between the first and second spaces.
상기 컬러편광수단과 상기 반사형 편광수단과 상기 흡수형 편광수단은 상기 빛이 투과하는 수단에 배치되는 것이 바람직하다.It is preferable that the above color polarizing means, the above reflective polarizing means, and the above absorption polarizing means are arranged in the means through which the light transmits.
본 발명의 세 번째 측면에 따를 경우, 상기 컬러편광수단 또는 상기 반사형 편광수단 중 어느 하나 또는 양자는 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지는 것이 바람직하다.According to the third aspect of the present invention, it is preferable that either or both of the color polarizing means or the reflective polarizing means have a specific shape for decoration, advertising or information transmission.
또한, 상기 컬러편광수단과 상기 반사형 편광수단은 상기 제2공간에서 이들 컬러편광수단과 반사형 편광수단을 바라보았을 때 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 적어도 일부분이 상호간에 겹치도록 배치되는 것이 바람직하다.In addition, it is preferable that the color polarizing means and the reflective polarizing means are positioned so that when the color polarizing means and the reflective polarizing means are viewed from the second space, one of them is positioned within the area of the other, or at least part of them overlaps with each other.
본 발명의 세 번째 측면에 따를 경우, 상기 컬러편광수단과 상기 반사형 편광수단은 상호간에 부착되어 있는 것이 바람직하다.According to the third aspect of the present invention, it is preferable that the color polarizing means and the reflective polarizing means are attached to each other.
본 발명의 세 번째 측면은, 다시, The third aspect of the present invention is, again,
(a) 컬러편광수단과 반사형 편광수단과 흡수형 편광수단을 포함하는 편광시스템으로서, (a) A polarization system including a color polarization means, a reflective polarization means, and an absorption polarization means,
(b) 상기 컬러편광수단과 상기 흡수형 편광수단은 상호간에 상대적으로 상기 컬러편광수단은 제2공간을 향한 쪽에 배치되고, 상기 흡수형 편광수단은 제1공간을 향한 쪽에 배치되고, 상기 반사형 편광수단은 상기 컬러편광수단과 상기 흡수형 편광수단의 사이에 배치되며, 여기서 (b) The color polarizing means and the absorption type polarizing means are arranged relative to each other, with the color polarizing means being arranged on the side facing the second space, the absorption type polarizing means being arranged on the side facing the first space, and the reflection type polarizing means being arranged between the color polarizing means and the absorption type polarizing means, wherein
(c1) 상기 제1공간은 상기 제2공간에 머무는 자가 상기 편광시스템을 통하여 바라보는 대상이고, (c1) The first space above is an object viewed by a person staying in the second space through the polarization system,
(c2) 상기 제2공간은 상기 제1공간에 머무는 자가 상기 편광시스템을 통하여 바라보는 대상이며, (c2) The above second space is an object viewed by a person staying in the above first space through the above polarization system.
(d) 상기 컬러편광수단과 상기 반사형 편광수단과 상기 흡수형 편광수단 각각의 투과축의 방향은 상기 제1공간에서 상기 편광시스템을 향하여 출발하여 상기 편광시스템에서 상기 제1공간으로 반사되는 빛에 대한 반사율인 제1반사율과 상기 제2공간에서 상기 편광시스템을 향하여 출발하여 상기 편광시스템에서 상기 제2공간으로 반사되는 빛에 대한 반사율인 제2반사율이 서로 다르게 하는 각도를 상호간에 이루고 있고,(d) The direction of the transmission axis of each of the color polarizing means, the reflective polarizing means, and the absorptive polarizing means forms an angle with respect to each other such that the first reflectivity, which is the reflectivity for light departing from the first space toward the polarizing system and reflected from the polarizing system to the first space, and the second reflectivity, which is the reflectivity for light departing from the second space toward the polarizing system and reflected from the polarizing system to the second space, are different from each other,
(e) 상기 제2공간에서 상기 제1공간을 바라보면 상기 컬러편광수단이 컬러를 띠는 것을 특징으로 하는 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공한다.(e) A polarization system is provided in which the reflectivity toward the two spaces is different, characterized in that the color polarization means has a color when looking at the first space from the second space.
이러한 경우, 상기 컬러편광수단과 상기 반사형 편광수단과 상기 흡수형 편광수단은 각각이 서로 평행한 평면에 놓이는 것이 바람직하다.In this case, it is preferable that the color polarizing means, the reflective polarizing means, and the absorption polarizing means are each placed on a plane parallel to each other.
또한, 상기 컬러편광수단의 투과축의 방향과 상기 반사형 편광수단의 투과축의 방향이 상호간에 이루는 각도는 이들 투과축의 방향이 평행일 때를 0°로 하여 이로부터 +7°또는 -7°의 범위 내(+7°와 -7° 포함)에 있는 것이 바람직하며, In addition, it is preferable that the angle formed between the direction of the transmission axis of the color polarizing means and the direction of the transmission axis of the reflective polarizing means is within the range of +7° or -7° (including +7° and -7°) from 0° when the directions of the transmission axes are parallel.
또한 상기 컬러편광수단의 투과축의 방향과 상기 반사형 편광수단의 투과축의 방향이 상호간에 이루는 각도는 0°로서 상기 컬러편광수단과 반사형 편광수단의 각각의 투과축의 방향은 상호간에 평행을 이루는 것이 바람직하고,In addition, it is preferable that the angle formed between the direction of the transmission axis of the color polarizing means and the direction of the transmission axis of the reflective polarizing means is 0°, and the directions of the transmission axes of each of the color polarizing means and the reflective polarizing means are parallel to each other.
나아가서, 상기 컬러편광수단의 투과축의 방향과 상기 반사형 편광수단의 투과축의 방향과 상기 흡수형 편광수단의 투과축의 방향들이 상호간에 이루는 각도는 모두 0°로서 상기 컬러편광수단과 반사형 편광수단과 상기 흡수형 편광수단의 각각의 투과축의 방향은 모두 상호간에 평행을 이루는 것이 가장 바람직하다.Furthermore, it is most preferable that the angles formed between the direction of the transmission axis of the color polarizing means, the direction of the transmission axis of the reflective polarizing means, and the direction of the transmission axis of the absorption polarizing means are all 0°, and the directions of the transmission axes of the color polarizing means, the reflective polarizing means, and the absorption polarizing means are all parallel to each other.
이들의 경우에 있어서, 상기 컬러편광수단 또는 상기 반사형 편광수단 중 어느 하나 또는 양자는 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지는 것이 바람직하고, In these cases, it is preferable that either or both of the color polarizing means or the reflective polarizing means have a specific form for decoration, advertising or information transmission.
또한, 상기 컬러편광수단과 상기 반사형 편광수단은 상기 제2공간에서 이들 컬러편광수단과 반사형 편광수단을 바라보았을 때 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 적어도 일부분이 상호간에 겹치도록 배치되는 것이 바람직하다.In addition, it is preferable that the color polarizing means and the reflective polarizing means are positioned so that when the color polarizing means and the reflective polarizing means are viewed from the second space, one of them is positioned within the area of the other, or at least part of them overlaps with each other.
이들의 경우에 있어서, 상기 컬러편광수단과 상기 반사형 편광수단은 상호간에 부착되어 있을 수 있다.In these cases, the color polarizing means and the reflective polarizing means may be attached to each other.
한편으로, 이들의 경우에 있어서, On the one hand, in these cases,
상기 제1공간과 제2공간의 경계에는 빛이 투과하는 수단이 위치하고, A means for transmitting light is located at the boundary between the first and second spaces.
상기 컬러편광수단과 상기 반사형 편광수단과 상기 흡수형 편광수단은 상기 빛이 투과하는 수단에 배치되는 것이 바람직하다.It is preferable that the above color polarizing means, the above reflective polarizing means, and the above absorption polarizing means are arranged in the means through which the light transmits.
본 발명의 네 번째 측면은 The fourth aspect of the present invention is
(a) 양면으로부터 빛을 받아 발전을 이룰 수 있는 투명의 태양광 발전 패널과 같이 설치되는 것으로서, 반사형 편광수단과 흡수형 편광수단을 포함하여 이루어지는 편광시스템으로서,(a) A polarization system that is installed like a transparent solar power generation panel that can generate power by receiving light from both sides, and that includes a reflective polarization means and an absorbing polarization means,
(b) 상기 투명의 태양광 발전 패널과 상기 흡수형 편광수단은 상호간에 상대적으로 상기 투명의 태양광 발전 패널은 제2공간을 향한 쪽에 배치되고, 상기 흡수형 편광수단은 제1공간을 향한 쪽에 배치되고 상기 반사형 편광수단은 상기 투명의 태양광 발전 패널과 상기 흡수형 편광수단의 사이에 배치되며, 여기서 (b) The transparent solar power generation panel and the absorbing polarizing means are arranged relative to each other such that the transparent solar power generation panel is arranged on the side facing the second space, the absorbing polarizing means is arranged on the side facing the first space, and the reflecting polarizing means is arranged between the transparent solar power generation panel and the absorbing polarizing means, wherein
(c1) 상기 제2공간은 상기 투명의 태양광 발전 패널로 인입되는 태양광이 제공되는 곳이고,(c1) The above second space is a place where sunlight is provided to the above transparent solar power generation panel,
(c2) 상기 제1공간은 이 공간에 머무는 자가 상기 편광시스템과 상기 투명의 태양광 발전 패널을 통하여 상기 제2공간을 바라보는 공간이고,(c2) The first space is a space where a person staying in this space views the second space through the polarization system and the transparent solar power generation panel.
(d) 상기 반사형 편광수단은 상기 투명의 태양광 발전 패널에 대하여 상기 제2공간에서 출발하여 상기 투명의 태양광 발전 패널을 투과한 상기 태양광의 일부가 상기 반사형 편광수단에서 반사되어 다시 상기 태양광 발전 패널을 투과하도록 배치되고,(d) The reflective polarizing means is arranged so that a portion of the sunlight that originates from the second space and passes through the transparent solar power generation panel is reflected by the reflective polarizing means and passes through the solar power generation panel again.
(e) 상기 반사형 편광수단과 흡수형 편광수단의 각각의 투과축의 방향이 상호간에 이루는 각도는 이들 투과축의 방향이 평행일 때를 0°로 하여 이로부터 +10°또는 -10°의 범위 내(+10°와 -10° 포함)에 있는 것을 특징으로 하는 양쪽 공간을 향한 반사율이 서로 다른 편광시스템을 제공한다.(e) The angle formed between the directions of the respective transmission axes of the reflective polarizing means and the absorption polarizing means is set to 0° when the directions of the transmission axes are parallel, and is within a range of +10° or -10° (including +10° and -10°), thereby providing a polarizing system having different reflectances toward both spaces.
본 발명의 네 번째 측면에 따를 경우, 상기 반사형 편광수단과 상기 흡수형 편광수단은 각각 서로 평행한 평면에 놓이는 것이 바람직하다.According to the fourth aspect of the present invention, it is preferable that the reflective polarizing means and the absorptive polarizing means are placed on planes parallel to each other.
본 발명의 네 번째 측면에 따를 경우, 상기 태양광 발전 패널은 표면이 평면인 매질이며, 상기 반사형 편광수단과 상기 흡수형 편광수단이 놓이는 평면은 상기 태양광 발전 패널이 이루는 평면에 평행하게 배치되는 것이 바람직하다.According to the fourth aspect of the present invention, the solar power generation panel is a medium having a flat surface, and it is preferable that the plane on which the reflective polarizing means and the absorptive polarizing means are placed is arranged parallel to the plane formed by the solar power generation panel.
본 발명의 네 번째 측면에 따를 경우, 상기 반사형 편광수단과 흡수형 편광수단의 각각의 투과축의 방향이 상호간에 이루는 각도는 0°로서 상기 반사형 편광수단과 흡수형 편광수단의 각각의 투과축의 방향은 상호간에 평행을 이루는 것이 가장 바람직하다.According to the fourth aspect of the present invention, it is most preferable that the angle formed between the directions of the transmission axes of the reflective polarizing means and the absorbing polarizing means is 0°, and the directions of the transmission axes of the reflective polarizing means and the absorbing polarizing means are parallel to each other.
본 발명의 네 번째 측면에 따를 경우, According to the fourth aspect of the present invention,
상기 제1공간과 제2공간의 경계에는 빛이 투과하는 수단이 위치하고, A means for transmitting light is located at the boundary between the first and second spaces.
상기 투명의 태양광 발전 패널과 상기 반사형 편광수단과 상기 흡수형 편광수단은 상기 빛이 투과하는 수단에 배치되는 것이 바람직하다.It is preferable that the above transparent solar power generation panel, the reflective polarizing means, and the absorptive polarizing means are arranged in the means through which the light transmits.
또한, 상기 반사형 편광수단과 상기 흡수형 편광수단은 상호간에 부착되어 있는 것이 바람직하다.In addition, it is preferable that the reflective polarizing means and the absorptive polarizing means are attached to each other.
본 발명에 따를 경우 제1공간과 제2공간에 대하여 양쪽을 향한 반사율이 서로 다르게 된다. 이를 기반으로 제2공간에서 제1공간을 바라볼 때 시선차단을 이루면서, 제1공간에서 제2공간을 바라볼 때는 반사광으로 조망이 방해받지 않도록 할 수 있게 된다. 본 발명이 이와 같이 적용되는 것은 프라이버시(privacy) 보호와 관련되어 유용할 수 있다.According to the present invention, the reflectivity in each direction differs for the first and second spaces. Based on this, when looking at the first space from the second space, the line of sight is blocked, while when looking at the second space from the first space, the view is not obstructed by reflected light. This application of the present invention may be useful in relation to privacy protection.
본 발명은, 또한, 반사형 편광수단과 흡수형 편광수단에 대하여 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지도록 하며, 또한, 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분들이 상호간에 겹치도록 배치함으로써, 제1공간에서 제2공간을 바라볼 때, 그리고 제2공간에서 제1공간을 바라볼 때 그 형태와 반사가 다르게 나타나는 독특한 효과를 얻을 수 있게 되는 것이다.The present invention also provides a unique effect in which one or both of the reflective polarizing means and the absorbing polarizing means have a specific shape for decoration, advertising, or information transmission, and in which one or both are positioned within the area of the other or their respective parts overlap each other, thereby producing a different shape and reflection when looking at a second space from a first space, and when looking at a first space from a second space.
이러한 경우에서, 제2공간을 향하는 반사형 편광수단은 빛의 반사로 제2공간에서 바라보았을 때 높은 시인성을 가지지만, 흡수형 편광수단과 반사형 편광수단이 겹치는 곳에서는 이를 통하여 제1공간에서 제2공간을 바라보는 조망에는 아무런 장애가 없다.In this case, the reflective polarizing means facing the second space has high visibility when viewed from the second space due to the reflection of light, but in the place where the absorptive polarizing means and the reflective polarizing means overlap, there is no obstruction in the view from the first space to the second space.
한편, 이러한 경우에 있어서, 제1공간과 제2공간)의 조도가 역전하게 되면 그 장식, 광고 또는 정보전달을 위한 특정한 형태가 사라지거나 변화하게 되는 효과도 더불어 나타나게 된다.Meanwhile, in these cases, when the illuminance of the first and second spaces is reversed, the effect of certain forms for decoration, advertisement, or information transmission disappearing or changing also appears.
나아가서, 본 발명은 관찰실과 조사실에 적용되어 조사실의 피조사자는 관찰실을 볼 수 없지만 조사실의 조사자는 관찰실을 볼 수 있으며, 조사실의 조명에 의한 직사광선이 관찰실에 도달하지 않게 하여 관찰자는 조명의 방해를 받지 않고 더욱 조사실을 잘 관찰할 수 있게 된다.Furthermore, the present invention is applied to an observation room and an investigation room, so that a subject in the investigation room cannot see the observation room, but an investigator in the investigation room can see the observation room, and direct sunlight from the lighting in the investigation room is prevented from reaching the observation room, so that an observer can observe the investigation room better without being disturbed by the lighting.
한편, 본 발명은 컬러편광수단을 추가적으로 가지는 경우를 제시하며, 이러한 경우, 제2공간에서 바라보았을 때 컬러를 띠게 되며, 컬러편광수단과 반사형 편광수단에 대하여 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지도록 하며, 또한, 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분들이 상호간에 겹치도록 배치함으로써, 제1공간에서 제2공간을 바라볼 때, 그리고 제2공간에서 제1공간을 바라볼 때 그 형태와 컬러와 반사가 다르게 나타나는 독특한 효과를 얻을 수 있게 된다.Meanwhile, the present invention proposes a case in which a color polarizing means is additionally provided, and in this case, when viewed from a second space, it has a color, and one or both of the color polarizing means and the reflective polarizing means have a specific shape for decoration, advertising, or information transmission, and further, by positioning one of them within the area of the other or arranging the respective parts to overlap each other, a unique effect can be obtained in which the shape, color, and reflection appear differently when the second space is viewed from the first space, and when the first space is viewed from the second space.
이러한 경우에서, 제2공간을 향하는 컬러편광수단은 컬러를 가지는 반사광으로 제2공간에서 바라보았을 때 높은 시인성과 미감을 창출할 수 있게 하지만, 이들 컬러편광수단과 반사형 편광수단이 겹치는 곳에서는 이를 통하여 제1공간에서 제2공간을 바라보는 조망은 방해받지 않는다.In such cases, the color polarizing means directed toward the second space can create high visibility and aesthetics when viewed from the second space with the reflected light having color, but in places where these color polarizing means and the reflective polarizing means overlap, the view from the first space to the second space is not obstructed.
나아가서, 본 발명은 제1공간과 제2공간의 사이에 설치되는 투명의 태양광 발전 패널과 관련되어 제1공간으로부터 상기 투명의 태양광 발전 패널을 투과하는 빛에 더하여 상기 투명의 태양광 발전 패널의 뒷면으로 반사광이 투과되도록 하여 발전효율을 높이면서, 제1공간에서 제2공간을 바라볼 때 반사광으로 인한 조망의 방해를 일으키지 않도록 한다.Furthermore, the present invention relates to a transparent solar power generation panel installed between a first space and a second space, and increases power generation efficiency by allowing reflected light to be transmitted through the back of the transparent solar power generation panel in addition to light passing through the transparent solar power generation panel from the first space, while preventing the view from being obstructed by reflected light when looking at the second space from the first space.
도 1은 본 발명의 첫 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템의 구조를 보이는 도면; FIG. 1 is a drawing showing the structure of a polarization system having different reflectivities toward both spaces according to the first aspect of the present invention;
도 2는 흡수형 편광필름과 반사형 편광필름이 놓이는 평면이 상호간에 평행함을 보이는 도면;Figure 2 is a drawing showing that the planes on which the absorptive polarizing film and the reflective polarizing film are placed are parallel to each other;
도 3은 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템이 적용되는 대상의 예를 보이는 도면;FIG. 3 is a drawing showing an example of an object to which a polarization system having different reflectivities toward both spaces according to the present invention is applied;
도 4에서 도 7은 도 3의 창에 본 발명의 첫 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템이 배치되는 예를 보이는 도면;FIGS. 4 to 7 are drawings showing examples of polarization systems having different reflectivities toward both spaces according to the first aspect of the present invention being arranged in the window of FIG. 3;
도 8은 흡수형 편광수단과 반사형 편광수단의 투과축의 방향이 상호간에 이루는 각도를 도식적으로 보이는 도면;Figure 8 is a diagram schematically showing the angle formed between the directions of the transmission axes of an absorption-type polarizing means and a reflection-type polarizing means;
도 9는 본 발명의 첫 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템의 반사형 편광필름에서 반사가 일어나 눈부심을 야기하는 경우의 일예를 보이는 도면;FIG. 9 is a drawing showing an example of a case in which reflection occurs in a reflective polarizing film of a polarizing system having different reflectivities toward both spaces according to the first aspect of the present invention, causing glare;
도 10은 도 9의 눈부심 해결을 위한 해결구조를 보이는 도면;Fig. 10 is a drawing showing a solution structure for resolving the glare of Fig. 9;
도 11은 외부의 반사체로 인하여 반사가 일어나 눈부심이 발생하는 경우의 일 예를 보이는 도면;Figure 11 is a drawing showing an example of a case where glare occurs due to reflection caused by an external reflector;
도 12는 도 11의 눈부심 해결을 위한 해결구조를 보이는 도면; Fig. 12 is a drawing showing a solution structure for resolving the glare of Fig. 11;
도 13에서 도 16은 본 발명이 관찰실과 조사실에 적용된 경우의 구조를 보이는 도면; Figures 13 to 16 are drawings showing the structure when the present invention is applied to an observation room and an investigation room;
도 17은 반사형 편광수단의 반사축의 방향을 조명용 편광수단으로 투영(사영)하는 것을 보이는 도면; Fig. 17 is a drawing showing the direction of the reflection axis of a reflective polarizing means being projected onto a polarizing means for lighting;
도 18에서 도 20은 반사형 편광수단과 흡수형 편광수단이 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지고 상호간에 중첩되어 배치되는 경우를 보이는 도면;FIGS. 18 to 20 are drawings showing a case where a reflective polarizing means and an absorptive polarizing means are arranged to overlap each other in a specific form for decoration, advertising or information transmission;
도 21은 본 발명의 첫 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템의 흡수형 편광필름에 색상필름이 배치된 것을 보이는 도면;FIG. 21 is a drawing showing a color film arranged on an absorptive polarizing film of a polarizing system having different reflectivities toward both spaces according to the first aspect of the present invention;
도 22는 본 발명의 두 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템의 구조를 보이는 도면; FIG. 22 is a drawing showing the structure of a polarization system having different reflectivities toward both spaces according to the second aspect of the present invention;
도 23은 원편광필름과 반반사필름이 놓이는 평면이 상호간에 평행함을 보이는 도면;Figure 23 is a drawing showing that the planes on which the circular polarizing film and the semi-reflective film are placed are parallel to each other;
도 24는 반반사필름에서 원편광필름을 통과한 빛이 닿는 면이 복굴절성이 없는 경우의 구조를 보이는 예;Fig. 24 is an example of a structure in which the surface on which light passing through a circular polarizing film hits a semi-reflective film has no birefringence;
도 25에서 도 27은 도 3의 창에 본 발명의 두 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템이 배치되는 예를 보이는 도면;FIGS. 25 to 27 are drawings showing examples of polarization systems having different reflectivities toward both spaces according to the second aspect of the present invention being arranged in the window of FIG. 3;
도 28은 본 발명의 세 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템의 구조를 보이는 도면;FIG. 28 is a drawing showing the structure of a polarization system having different reflectivities toward both spaces according to the third aspect of the present invention;
도 29는 컬러편광필름과 반사형 편광필름이 놓이는 평면이 상호간에 평행함을 보이는 도면;Figure 29 is a drawing showing that the planes on which the color polarizing film and the reflective polarizing film are placed are parallel to each other;
도 30은 컬러편광수단과 반사형 편광수단의 투과축의 방향이 상호간에 이루는 각도를 도식적으로 보이는 도면;Fig. 30 is a drawing schematically showing the angle formed between the directions of the transmission axes of the color polarizing means and the reflective polarizing means;
도 31과 도 32는 본 발명의 세 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템에서 컬러편광필름과 반사형 편광필름과 흡수형 편광필름이 투명창에 배치되는 예를 보이는 도면; FIGS. 31 and 32 are drawings showing examples of a color polarizing film, a reflective polarizing film, and an absorptive polarizing film being arranged on a transparent window in a polarizing system having different reflectivities toward both spaces according to a third aspect of the present invention;
도 33에서 도 35는 컬러편광수단과 반사형 편광수단이 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지고 상호간에 중첩되어 배치되는 경우를 보이는 도면;FIGS. 33 to 35 are drawings showing a case where a color polarizing means and a reflective polarizing means are arranged to overlap each other in a specific form for decoration, advertising, or information transmission;
도 36은 본 발명의 네 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템의 구조를 보이는 도면;FIG. 36 is a drawing showing the structure of a polarization system having different reflectivities toward both spaces according to the fourth aspect of the present invention;
도 37은 투명의 태양광 발전 패널과 흡수형 편광필름과 반사형 편광필름이 놓이는 평면이 상호간에 평행함을 보이는 도면;Figure 37 is a drawing showing that the planes on which the transparent solar power generation panel, the absorbing polarizing film, and the reflecting polarizing film are placed are parallel to each other;
도 38과 도 39는 건물의 외벽에 설치되는 투명창에 대하여 본 발명의 네 번째 측면에 따른 양쪽공간을 향한 반사율이 서로 다른 편광시스템이 설치된 예를 보이는 도면; FIGS. 38 and 39 are drawings showing examples of polarization systems having different reflectivities toward both spaces according to the fourth aspect of the present invention installed on transparent windows installed on the exterior walls of buildings;
도 40은 본 발명의 네 번째 측면에서 반사형 편광필름과 흡수형 편광필름의 투과축의 방향이 상호간에 이루는 각도를 도식적으로 보이는 도면.FIG. 40 is a diagram schematically showing the angle formed between the directions of the transmission axes of a reflective polarizing film and an absorptive polarizing film in the fourth aspect of the present invention.
이제 본 발명의 바람직한 실시예를 첨부한 도면을 참고로 하여 상세히 설명한다.Now, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.
도 1은 본 발명의 첫 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)의 구조를 보이는 도면이다.FIG. 1 is a drawing showing the structure of a polarization system (1000) having different reflectivities toward both spaces according to the first aspect of the present invention.
도 1을 참고로, 상기 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)은 각각 서로 평행한 평면에 놓이는 반사형 편광수단(200)과 흡수형 편광수단(100)을 포함한다.Referring to Fig. 1, the polarization system (1000) having different reflectivities toward the two spaces includes a reflective polarization means (200) and an absorptive polarization means (100) which are placed on planes parallel to each other.
본 실시예의 경우, 이들 반사형 편광수단(200)과 흡수형 편광수단(100) 각각의 투과축의 방향이 상호간에 평행을 이루고 있다. 그러나 이는 바람직한 경우이며, 본 발명에 따를 경우 반드시 그러한 것은 아닌데 이에 대해서는 후술한다.In the present embodiment, the directions of the transmission axes of each of the reflective polarizing means (200) and the absorbing polarizing means (100) are parallel to each other. However, this is a preferred case, and is not necessarily the case according to the present invention, which will be described later.
도 1의 (a)는 제2공간(S2)으로부터 빛이 상기 반사형 편광필름(200)으로 입사되어 일부는 반사되고, 일부는 이를 투과하여 상기 흡수형 편광필름(100)으로 입사되고 이를 투과하여 제1공간(S1)에 이르는 경우를 보이며, 도 1의 (b)는 도 1의 (a)의 빛이 지나는 동일한 광경로에 대하여 제1공간(S1)으로부터 빛이 상기 흡수형 편광필름(100)으로 입사되어 일부는 흡수되고, 일부는 이를 투과하여 상기 반사형 편광필름(200)으로 입사되고 이를 투과하여 제2공간(S2)에 이르는 경우를 보인다.FIG. 1 (a) shows a case where light from a second space (S2) is incident on the reflective polarizing film (200), some of which is reflected, some of which is transmitted through the reflective polarizing film (200), and some of which is incident on the absorbent polarizing film (100) and transmitted through the reflective polarizing film (100) to reach the first space (S1), and FIG. 1 (b) shows a case where light from a first space (S1) is incident on the absorbent polarizing film (100) along the same optical path as that of FIG. 1 (a), some of which is absorbed, some of which is transmitted through the reflective polarizing film (200), and some of which is transmitted through the reflective polarizing film (200) to reach the second space (S2).
도 2를 참고로, 상기 흡수형 편광수단(100)이 놓이는 평면인 제1평면(100p)과 상기 반사형 편광수단(200)이 놓이는 평면인 제2평면(200p)은 상호간에 평행하다. Referring to Figure 2, the first plane (100p), which is the plane on which the absorption-type polarizing means (100) is placed, and the second plane (200p), which is the plane on which the reflection-type polarizing means (200) is placed, are parallel to each other.
또한 도 8의 (c)가 보이는 바와 같이 이들 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향은 상호간에 평행을 이루고 있는 것이 바람직한데, 이 경우 이들 투과축(100a)(200a)의 방향이 이루는 각도(θ1)는 0°로 정의한다.In addition, as shown in (c) of Fig. 8, it is preferable that the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) are parallel to each other. In this case, the angle (θ1) formed by the directions of the transmission axes (100a) (200a) is defined as 0°.
본 발명에 따를 경우, 도 1에서 보이는 바와 같이, 상기 흡수형 편광수단(100)과 상기 반사형 편광수단(200)이 각각 위치한 쪽으로 각각 제1공간(S1)과 제2공간(S2)이 위치하게 된다. 즉 상기 반사형 편광수단(200)은 제2공간(S2)을 향한 쪽에 배치되고, 상기 흡수형 편광수단(100)은 제1공간(S1)을 향한 쪽에 배치된다.According to the present invention, as shown in FIG. 1, the first space (S1) and the second space (S2) are positioned respectively on the sides where the absorption-type polarization means (100) and the reflection-type polarization means (200) are respectively positioned. That is, the reflection-type polarization means (200) is positioned on the side facing the second space (S2), and the absorption-type polarization means (100) is positioned on the side facing the first space (S1).
이 경우, 상기 반사형 편광수단(200)은 제2공간(S2)을 향한 쪽에 배치되고, 상기 흡수형 편광수단(100)은 제1공간(S1)을 향한 쪽에 배치되는 것은 상호간에 상대적으로 그렇게 배치가 이루어진다는 것이다. 다시 말하여 상기 반사형 편광수단(200)은 상기 흡수형 편광수단(100)보다 도면상 더욱 왼쪽에 위치하여 상대적으로 제2공간(S2)을 향한 쪽에 배치가 되는 것이고, 상기 흡수형 편광수단(100)은 상대적으로 상기 제1공간(S1)을 향한 쪽에 배치가 되는 것이다.In this case, the reflective polarizing means (200) is arranged on the side facing the second space (S2), and the absorbent polarizing means (100) is arranged on the side facing the first space (S1), which means that they are arranged relatively to each other. In other words, the reflective polarizing means (200) is positioned further to the left of the absorbent polarizing means (100) in the drawing, and is arranged relatively on the side facing the second space (S2), and the absorbent polarizing means (100) is arranged relatively on the side facing the first space (S1).
예를 들어, 도 5에서 도 7을 참고로, 제1공간(S1)과 제2공간(S2)의 경계에 투명창(W)이 설치되는데, 이 투명창(W)에 대하여 다양한 위치에 반사형 편광수단(200)과 흡수형 편광수단(100)이 설치되고 있다.For example, referring to FIGS. 5 to 7, a transparent window (W) is installed at the boundary between the first space (S1) and the second space (S2), and a reflective polarizing means (200) and an absorbing polarizing means (100) are installed at various locations with respect to the transparent window (W).
이들의 경우, 구체적으로 각각의 경우에 반사형 편광수단(200)과 흡수형 편광수단(100)이 배치되는 위치는 서로 다르지만, 반사형 편광수단(200)은 흡수형 편광수단(100)보다 상대적으로 제2공간(S2)을 향한 쪽에 배치가 되고, 흡수형 편광수단(100)은 반사형 편광수단(200)보다 상대적으로 제1공간(S1)을 향한 쪽에 배치가 되고 있는 것이다.In these cases, specifically, the positions where the reflective polarizing means (200) and the absorbing polarizing means (100) are arranged are different in each case, but the reflective polarizing means (200) is arranged relatively toward the second space (S2) compared to the absorbing polarizing means (100), and the absorbing polarizing means (100) is arranged relatively toward the first space (S1) compared to the reflective polarizing means (200).
본 발명에 따를 경우, 상기 제1공간(S1)은 상기 제2공간(S2)에 머무는 자가 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)을 통하여 바라보는 대상이다.According to the present invention, the first space (S1) is an object viewed by a person staying in the second space (S2) through the reflective polarizing means (200) and the absorbing polarizing means (100).
또한, 상기 제2공간(S2)은 상기 제1공간(S1)에 머무는 자가 상기 흡수형 편광수단(100)과 상기 반사형 편광수단(200)을 통하여 바라보는 대상이다. In addition, the second space (S2) is an object viewed by a person staying in the first space (S1) through the absorption-type polarization means (100) and the reflection-type polarization means (200).
이 경우, 바라보는 대상이라는 것은 말 그대로 바라보는 것을 의미하는 것이며, 반드시 보이게 되는 것을 내포하지는 않는다.In this case, the object of looking literally means looking at something, and does not necessarily imply what is seen.
후술하는 바와 같이, 본 발명에 따라, 상기 제2공간(S2)에서 상기 제1공간(S1)을 바라보면 제1공간(S1)이 보이는 정도가 악화되는 시선차단효과가 나타나게 된다. 즉 상기 제2공간(S2)에서 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)을 통하여 상기 제1공간(S1)을 바라보아도 제1공간(S1)은 잘 안보이거나, 자세히 보아야 보이거나, 또는 전혀 보이지 않을 수 있다.As described below, according to the present invention, when looking at the first space (S1) from the second space (S2), a line-of-sight blocking effect occurs in which the degree to which the first space (S1) is visible worsens. That is, when looking at the first space (S1) from the second space (S2) through the reflective polarizing means (200) and the absorptive polarizing means (100), the first space (S1) may not be visible, may require close inspection, or may not be visible at all.
하지만 여전히 제2공간(S2)에 머무는 자에게 제1공간(S1)은 반사형 편광수단(200)과 흡수형 편광수단(100)을 통하여 바라보는 대상인 것이다.However, for those who still remain in the second space (S2), the first space (S1) is an object viewed through the reflective polarizing means (200) and the absorbing polarizing means (100).
한편, 상기 제1공간(S1) 또는 제2공간(S1)에 머무는 자는 반드시 실제 그 공간에 머무는 사람을 의미하지는 않으며 바라볼 수 있는 수단이 위치할 수 있는 것을 의미한다.Meanwhile, a person staying in the first space (S1) or the second space (S1) does not necessarily mean a person actually staying in that space, but means that a means of viewing can be located.
예를 들어, 선글라스를 착용하였을 때, 착용자의 눈과 선글라스의 사이가 제1공간이 될 수 있고, 선글라스 착용자가 선글라스를 통하여 바라보는 외부의 공간이 제2공간이 될 수 있는데, 이 경우에도 제1공간에 제2공간을 바라볼 수 있는 수단인 착용자의 눈이 위치하는 것으로서 제1공간에 머무는 자가 제2공간을 바라보고 있다고 말할 수 있는 것이다.For example, when wearing sunglasses, the space between the wearer's eyes and the sunglasses can be the first space, and the external space that the wearer sees through the sunglasses can be the second space. In this case, since the wearer's eyes, which are a means of looking at the second space, are located in the first space, it can be said that a person staying in the first space is looking at the second space.
또한 상기 제1공간(S1) 또는 제2공간(S2)에 머무는 자는 사람이 아닌 CCTV등 사진이나 동영상을 찍는 장치가 될 수도 있다.Additionally, the person staying in the first space (S1) or second space (S2) may not be a person, but may be a device that takes pictures or videos, such as a CCTV.
반사형 편광수단(200)은 입사되는 빛(일정 파장 범위의 전자기파)에 대하여 특정방향으로 진동하는 파동은 투과시키고 이와 수직인 방향으로 진동하는 파동은 반사가 되게 하는 것을 말한다. 이러한 반사형 편광수단(200)의 대표적인 것은 3M사의 제품명 DBEF(Double Brightness Enhancement Film)와 같은 것이 있다.A reflective polarizing means (200) transmits waves vibrating in a specific direction with respect to incident light (electromagnetic waves of a certain wavelength range) and reflects waves vibrating in a direction perpendicular thereto. A representative example of this reflective polarizing means (200) is 3M's product name DBEF (Double Brightness Enhancement Film).
흡수형 편광수단(100)은 입사하는 빛에 대하여 특정 방향으로 진동하는 파동은 투과시키고 이와 수직인 방향으로 진동하는 파동은 흡수하여 투과를 못하게 하는 편광수단을 말하며 가장 일반적인 편광수단이라고 할 것이다.An absorption polarizing means (100) is a polarizing means that transmits waves vibrating in a specific direction with respect to incident light and absorbs waves vibrating in a direction perpendicular thereto, preventing them from being transmitted. It can be said to be the most common polarizing means.
상기 반사형 편광수단(200)에서 입사되는 빛의 파동의 방향 중에 전부 투과되는 방향을 투과축이라 하고, 이와 수직한 방향으로 전부 반사가 일어나는 방향을 반사축이라 한다.Among the directions of light waves incident on the above reflective polarizing means (200), the direction in which all light is transmitted is called the transmission axis, and the direction in which all light is reflected in a direction perpendicular thereto is called the reflection axis.
상기 흡수형 편광수단(100)에서 입사되는 빛의 파동의 방향 중에 전부 투과되는 방향을 투과축이라 하고, 이와 수직한 방향으로 전부 흡수가 일어나는 편광방향을 흡수축이라 한다.Among the directions of light waves incident on the above absorption-type polarizing means (100), the direction in which all light is transmitted is called the transmission axis, and the polarization direction in which all light is absorbed in a direction perpendicular thereto is called the absorption axis.
본 발명에서 다수 개의 편광수단들에 대하여 이들의 투과축, 반사축 또는 흡수축의 방향에 대하여, 이들이 평행하거나 이들이 이루는 각도가 0°라거나 또는 이들 방향이 일치한다는 것은 모두 동일한 의미로 사용되는 것이며 이하에서 이들은 혼용되어 사용될 수 있다.In the present invention, with respect to the direction of the transmission axis, reflection axis or absorption axis of a plurality of polarizing means, the terms that they are parallel, that the angle they form is 0°, or that their directions are identical are all used with the same meaning, and these may be used interchangeably hereinafter.
즉 본 발명에서 빛의 편광방향이 흡수형 편광수단 또는 반사형 편광수단의 투과축, 흡수축 또는 반사축과 평행하다거나 일치 또는 이들이 이루는 각도가 0°라는 것은 그 빛이 흡수형 편광수단 또는 반사형 편광수단이 이루는 평면에 수직으로 입사할 때에는 그 빛의 편광방향과 투과축, 흡수축 또는 반사축이 평행하다는 것을 그대로 의미하나, 수직이 아닌 각도로 입사하는 빛의 경우에는 그 빛의 편광방향을 그 빛의 진행방향에 따라 흡수형 편광수단 또는 반사형 편광수단이 이루는 평면에 투영(또는 사영)하였을 때 그 투영된 방향이 투과축, 흡수축 또는 반사축과 일치하게 되는 방향의 편광방향을 갖는다는 것을 의미한다. That is, in the present invention, the polarization direction of light being parallel to or coincident with the transmission axis, absorption axis, or reflection axis of the absorption-type polarization means or the reflection-type polarization means, or the angle formed by them being 0°, means that when the light is incident perpendicularly to the plane formed by the absorption-type polarization means or the reflection-type polarization means, the polarization direction of the light and the transmission axis, absorption axis, or reflection axis are parallel, but in the case of light incident at an angle other than perpendicular, when the polarization direction of the light is projected (or projected) onto the plane formed by the absorption-type polarization means or the reflection-type polarization means according to the direction of propagation of the light, the projected direction has a polarization direction that coincides with the transmission axis, absorption axis, or reflection axis.
또한, 동일한 취지로, 반사형 편광수단(200)의 투과축의 방향과 흡수형 편광수단(100)의 투과축의 방향이 상호간에 평행하다거나, 상호간에 이루는 각도가 0°라거나 또는 이들 방향이 일치한다는 것은 모두 상호간에 혼용가능한 동일한 의미이다.In addition, in the same sense, the direction of the transmission axis of the reflective polarizing means (200) and the direction of the transmission axis of the absorption polarizing means (100) are mutually parallel, the angle formed between them is 0°, or these directions are identical and can be used interchangeably.
본 발명에서 상기 반사형 편광수단(200)과 흡수형 편광수단(100)은 주로 필름(film)의 형태가 사용될 것이지만, 시트(sheet) 또는 판(plate)형태의 것을 배제하는 것은 아니다.In the present invention, the reflective polarizing means (200) and the absorption polarizing means (100) will mainly be used in the form of a film, but those in the form of a sheet or plate are not excluded.
필름과 시트 또는 판은 그 두께의 정도에 따른 상대적 개념으로서 필름이 제일 얇고 다음으로 시트 그리고 판의 순서로 두께가 증가하게 되며, 하나의 기준은 필름은 두께가 0.25mm 이하인 것, 시트는 0.25mm부터 1mm이하를 말하고 그 이상의 두께는 판 형태로 나누는 것이다.Film and sheet or plate are relative concepts based on their thickness, with film being the thinnest, followed by sheet and then plate in that order. One standard is that film is 0.25 mm or less in thickness, sheet is 0.25 mm to 1 mm or less, and anything thicker is classified as plate.
이하에서 이들 반사형 편광수단(200)과 흡수형 편광수단(100)은 각각 반사형 편광필름과 흡수형 편광필름으로 예시를 들어 설명을 한다.Below, these reflective polarizing means (200) and absorbent polarizing means (100) are explained by using examples such as a reflective polarizing film and an absorbent polarizing film, respectively.
도 1의 (a)를 참고로, 제2공간(S2)으로부터 상기 반사형 편광필름(200)으로 입사되는 무편광(여러 방향의 파동이 모두 섞여있는 상태 또는 여러 편광방향이 모두 섞여있는 상태)의 빛(20)에서 그 파동방향(편광방향)이 상기 반사형 편광필름(200)의 투과축과 평행한 파동의 빛은 상기 반사형 편광필름(200)을 투과한다. 이렇게 투과된 빛을 도시부호 20'로 표시하고 있다.Referring to (a) of Fig. 1, among the unpolarized light (20) (a state in which waves in various directions are all mixed or a state in which various polarization directions are all mixed) incident from the second space (S2) onto the reflective polarizing film (200), light of a wave whose wave direction (polarization direction) is parallel to the transmission axis of the reflective polarizing film (200) is transmitted through the reflective polarizing film (200). The light transmitted in this way is indicated by the symbol 20'.
이후 상기 빛(20')은 상기 반사형 편광필름(200)과 평행하게 배치되고 투과축의 방향이 평행한 흡수형 편광필름(100)을 투과하여 제1공간(S1)으로 인입된다. 이렇게 제1공간으로 인입되는 빛이 도시부호 20"로 표시되고 있다.Thereafter, the light (20') is transmitted through an absorptive polarizing film (100) arranged parallel to the reflective polarizing film (200) and having a parallel transmission axis direction, and is introduced into the first space (S1). The light introduced into the first space in this way is indicated by the symbol 20".
도 1에서 상기 반사형 편광필름(200)과 흡수형 편광필름(100)의 투과축의 방향은 종이면에 수직인 방향으로서 ⊙로 표시되고 있다.In Fig. 1, the direction of the transmission axis of the reflective polarizing film (200) and the absorptive polarizing film (100) is indicated by ⊙ as a direction perpendicular to the paper surface.
또한, 상기 반사형 편광필름(200)의 반사축의 방향과 흡수형 편광필름(100)의 흡수축의 방향은 수직의 화살표(↕)로 표시되고 있다.Additionally, the direction of the reflection axis of the reflective polarizing film (200) and the direction of the absorption axis of the absorbing polarizing film (100) are indicated by vertical arrows (↕).
제2공간(S2)으로부터 상기 반사형 편광필름(200)으로 인입되는 빛(20)에서 그 파동방향이 상기 반사형 편광필름(200)의 투과축의 방향과 수직인 반사축방향의 파동의 빛은 상기 반사형 편광필름(200)에서 반사된다. 이렇게 반사된 빛을 도시부호 20"'로 표시하고 있다.In the light (20) entering the reflective polarizing film (200) from the second space (S2), the light of the wave direction in the reflection axis direction, which is perpendicular to the direction of the transmission axis of the reflective polarizing film (200), is reflected from the reflective polarizing film (200). The light reflected in this way is indicated by the symbol 20"'.
도 1의 (b)를 참고로, 제1공간(S1)으로부터 상기 흡수형 편광필름(100)으로 입사되는 무편광(여러 방향의 파동이 모두 섞여있는 상태 또는 여러 편광방향이 모두 섞여있는 상태)의 빛(10)에서 그 파동방향(편광방향)이 상기 흡수형 편광필름(100)의 투과축의 방향과 평행한 방향의 파동의 빛은 상기 흡수형 편광필름(100)을 투과한다. 이렇게 투과된 빛을 도시부호 10'로 표시하고 있다.Referring to (b) of Fig. 1, unpolarized light (10) incident from the first space (S1) onto the absorbent polarizing film (100) (in a state where waves in various directions are all mixed or in a state where various polarization directions are all mixed) light having a wave direction (polarization direction) that is parallel to the direction of the transmission axis of the absorbent polarizing film (100) transmits through the absorbent polarizing film (100). The light transmitted in this manner is indicated by the symbol 10'.
제1공간(S1)으로부터 상기 흡수형 편광필름(100)으로 입사되는 무편광의 빛(10)에서 상기 흡수형 편광필름(100)의 흡수축의 방향과 평행한 방향의 파동의 빛은 상기 흡수형 편광필름(100)을 투과하지 못하고 흡수된다.In the unpolarized light (10) incident from the first space (S1) onto the absorbent polarizing film (100), light of a wave direction parallel to the direction of the absorption axis of the absorbent polarizing film (100) does not pass through the absorbent polarizing film (100) and is absorbed.
이렇게 제1공간(S1)으로부터 무편광의 빛(10)이 상기 흡수형 편광필름(100)으로 입사되어 이를 통과하여 투과할 때 반사는 없다. 물론 표면반사는 있을 수 있지만 이는 미미할 것이다.In this way, when unpolarized light (10) from the first space (S1) is incident on the absorptive polarizing film (100) and passes through it, there is no reflection. Of course, surface reflection may occur, but this will be minimal.
상기 흡수형 편광필름(100)을 투과한 빛(10')은 상기 흡수형 편광필름(100)과 평행하게 놓이고 투과축이 평행한 반사형 편광필름(200)을 투과하여 제2공간(S2)으로 인입된다. 이렇게 제2공간으로 인입되는 빛을 도시부호 10"로 표시하고 있다.Light (10') transmitted through the above-described absorption-type polarizing film (100) passes through a reflective polarizing film (200) that is placed parallel to the absorption-type polarizing film (100) and has a parallel transmission axis, and enters the second space (S2). The light thus introduced into the second space is indicated by the symbol 10".
상기 흡수형 편광필름(100)을 투과한 빛(10')은 그 편광방향이 반사형 편광필름(200)의 투과축과 평행하므로 반사형 편광필름(200)을 그대로 투과하고 반사는 일어나지 않는다.The light (10') transmitted through the above-mentioned absorption-type polarizing film (100) has a polarization direction parallel to the transmission axis of the reflection-type polarizing film (200), so it passes through the reflection-type polarizing film (200) as is and no reflection occurs.
이와 같은 경우, 상기 반사형 편광필름(200)의 효율이 이상적이라고 가정한다면, 제2공간(S2)으로부터 입사되는 무편광의 빛(20)은 거칠게 보아서(즉, 반사형 편광필름과 흡수형 편광필름의 효율이 이상적이며 여타 방해요소가 없다면) 상기 반사형 편광필름(200)에서 1/2 정도가 반사되고 나머지 1/2 정도가 반사형 편광필름(200)과 상기 흡수형 편광필름(100)을 순차적으로 투과하여 제1공간(S1)에 인입된다고 볼 수 있다.In this case, assuming that the efficiency of the reflective polarizing film (200) is ideal, it can be seen that roughly (i.e., if the efficiency of the reflective polarizing film and the absorbing polarizing film are ideal and there are no other interference factors) about 1/2 of the unpolarized light (20) incident from the second space (S2) is reflected by the reflective polarizing film (200) and the remaining 1/2 sequentially passes through the reflective polarizing film (200) and the absorbing polarizing film (100) and enters the first space (S1).
제1공간(S1)에서 입사되는 무편광의 빛(10)은, 상기 흡수형 편광필름(100)의 효율이 이상적이라면, 거칠게 보아서 1/2 정도가 흡수형 편광필름(100)에서 흡수가 되고, 이후 나머지 1/2 정도가 흡수형 편광필름(100)을 투과한 후 이 투과한 빛(10')은 그 편광방향이 반사형 편광필름(200)의 투과축과 평행하므로 반사형 편광필름(200)에서 반사 없이 그대로 모두 투과하여 제2공간(S2)으로 인입되며, 흡수형 편광필름(100) 투과시 또는 반사형 편광필름(200) 투과시에 반사는 없다. 물론 표면반사로 인한 반사는 있을 수 있지만 이는 미미할 것이다. 한편 후술하듯이 반사방지처리 등을 통하여 표면반사를 줄일 수 있다.If the efficiency of the absorptive polarizing film (100) is ideal, roughly half of the unpolarized light (10) incident in the first space (S1) is absorbed by the absorptive polarizing film (100), and the remaining half is transmitted through the absorptive polarizing film (100). Since the polarization direction of this transmitted light (10') is parallel to the transmission axis of the reflective polarizing film (200), it is completely transmitted through the reflective polarizing film (200) without reflection and enters the second space (S2). There is no reflection when the absorptive polarizing film (100) or the reflective polarizing film (200) is transmitted. Of course, there may be reflection due to surface reflection, but this will be minimal. Meanwhile, as described later, surface reflection can be reduced through anti-reflection treatment, etc.
이와 같이, 상기 제1공간(S1)에서 상기 흡수형 편광수단(100)과 상기 반사형 편광수단(200)을 향하여 출발하였다가 이들 흡수형 편광수단(100)과 반사형 편광수단(200)에서 상기 제1공간(S1)으로 반사되는 빛에 대한 반사율인 제1반사율과 상기 제2공간(S2)에서 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)을 향하여 출발하였다가 이들 반사형 편광수단(200)과 흡수형 편광수단(100)에서 상기 제2공간(S2)으로 반사되는 빛에 대한 반사율인 제2반사율은 서로 다르게 된다. 즉 제2반사율이 제1반사율보다 월등히 높게 된다.In this way, the first reflectivity, which is the reflectivity for light that departs from the first space (S1) toward the absorbing polarizing means (100) and the reflecting polarizing means (200) and is reflected from these absorbing polarizing means (100) and reflecting polarizing means (200) to the first space (S1), and the second reflectivity, which is the reflectivity for light that departs from the second space (S2) toward the reflecting polarizing means (200) and the absorbing polarizing means (100) and is reflected from these reflecting polarizing means (200) and absorbing polarizing means (100) to the second space (S2), are different from each other. That is, the second reflectivity is significantly higher than the first reflectivity.
이와 같은 반사율의 차이로 인하여 상기 제2공간(S2)에서 상기 제1공간(S1)을 보았을 때 높은 반사율로 인한 강한 반사광으로 상기 제1공간(S1)이 보이는 정도가 악화되는 시선차단의 효과가 나타나고, 상기 제1공간(S1)에서 상기 제2공간(S2)을 보았을 때 상기 제2공간(S2)이 보이는 조망은 낮은 반사율로 인하여 반사광으로 인한 방해(조망방해)가 발생하지 않는다.Due to this difference in reflectivity, when the first space (S1) is viewed from the second space (S2), the view of the first space (S1) is impaired due to strong reflection caused by high reflectivity, resulting in a view blocking effect. When the second space (S2) is viewed from the first space (S1), the view of the second space (S2) is not obstructed (view obstructed) by reflection caused by low reflectivity.
즉, 제2공간(S2)에서 제1공간(S1)을 보게 되면, 반사형 편광필름(200)에서의 반사광(20''')으로 인하여 제1공간(S1)으로부터 제2공간(S2)으로 인입되는 빛(10")이 잘 보이지 않게 되는 반면, 제1공간(S1)에서 제2공간(S2)을 보게 되면, 흡수형 편광필름(100) 또는 반사형 편광필름(200)에서의 반사는 없거나 또는 미미하여 제2공간(S2)으로부터 제1공간(S1)으로 인입되는 빛(20")이 잘 보이게 되는 것이다.That is, when looking at the first space (S1) from the second space (S2), the light (10") introduced from the first space (S1) to the second space (S2) is not clearly visible due to the reflected light (20''') from the reflective polarizing film (200), whereas when looking at the second space (S2) from the first space (S1), the reflection from the absorptive polarizing film (100) or the reflective polarizing film (200) is absent or minimal, so the light (20") introduced from the second space (S2) to the first space (S1) is clearly visible.
이와 같이 본 발명은 각각의 공간에 머무는 자에게 상호간에 바라봄의 대상이 되는 제1공간(S1)과 제2공간(S2)에 대하여 각각의 공간을 향하여 반사되는 반사광의 반사율을 다르게 할 수 있게 되는 것이다. In this way, the present invention enables the reflectivity of the reflected light reflected toward each space to be different for the first space (S1) and the second space (S2), which are objects of mutual observation for those staying in each space.
그리고 이렇게 양쪽의 공간을 향한 반사율을 다르게 함에 따라서 제2공간(S2)으로부터 제1공간(S1)을 보았을 때는 시선차단이 이루어지고, 반대로 제1공간(S1)에서 제2공간(S2)을 보았을 때는 반사광으로 인한 조망방해가 발생하지 않는 효과를 얻게 되는 것이다.And by making the reflectivity toward the two spaces different in this way, when looking at the first space (S1) from the second space (S2), the line of sight is blocked, and conversely, when looking at the second space (S2) from the first space (S1), the effect of not causing the view to be obstructed due to reflected light is obtained.
본 발명에 따를 경우, 상기 제1공간(S1)과 제2공간(S2)의 경계에는 빛이 투과하는 수단이 위치하고, 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)은 상기 빛이 투과하는 수단에 배치될 수 있다.According to the present invention, a means for transmitting light is positioned at the boundary between the first space (S1) and the second space (S2), and the reflective polarizing film (200) and the absorptive polarizing film (100) can be placed on the means for transmitting light.
상기 빛이 투과하는 수단은 투명한 유리와 같은 빛이 투과하는 매질이고 적어도 그 표면 중 한 면이 평면인 것이 될 수 있으며, 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)은 상기 빛이 투과하는 매질에 평행하게 배치되는 것이 바람직하다.The means through which the light transmits may be a medium through which light transmits, such as transparent glass, and at least one of its surfaces may be flat, and it is preferable that the reflective polarizing film (200) and the absorptive polarizing film (100) are arranged parallel to the medium through which the light transmits.
예를 들어서, 도 3에서와 같이 건물(9)이 제공되고, 상기 건물(9)의 외벽에 투명창(W)이 설치가 되는 경우, 건물내부의 공간이 제1공간(S1)이 되고 건물외부의 공간이 제2공간(S2)이 되며 상기 투명창(W)이 이들 제1공간(S1)과 제2공간(S2)의 경계에 위치한 빛이 투과되는 매질이 될 것이고, 본 발명에 따른 양쪽의 공간을 향한 반사율이 서로 다른 편광시스템(1000)의 반사형 편광필름(200)과 흡수형 편광필름(100)은 상기 투명창(W)에 평행하게 배치가 되는 것이다.For example, if a building (9) is provided as in FIG. 3 and a transparent window (W) is installed on the outer wall of the building (9), the space inside the building becomes a first space (S1) and the space outside the building becomes a second space (S2), and the transparent window (W) becomes a medium through which light is transmitted at the boundary between the first space (S1) and the second space (S2), and the reflective polarizing film (200) and the absorptive polarizing film (100) of the polarizing system (1000) according to the present invention, which have different reflectivities toward the two spaces, are arranged parallel to the transparent window (W).
본 발명에 따를 경우, 제1공간(S1)과 제2공간(S2)의 경계에 위치하는 빛이 투과하는 수단은 전술한 투명창(W)과 같은 매질이 일반적이지만, 반드시 그러한 것은 아니며 투명창(W) 등이 없는 빈 공간이 될 수도 있다. According to the present invention, the means for transmitting light located at the boundary between the first space (S1) and the second space (S2) is usually a medium such as the transparent window (W) described above, but this is not necessarily the case and may be an empty space without a transparent window (W).
예를 들어서, 도 3의 건물(9)을 참고로, 건물(9)의 외벽에 뚫린 공간(미도시)을 형성할 수 있으며, 이곳에 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)을 설치할 수 있는 것이다. 즉 어떠한 공간에 투명창(W) 등 빛이 투과하는 특정한 매질을 설치하지 않고 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000) 만을 설치할 수도 있는 것이다.For example, referring to the building (9) of FIG. 3, a space (not shown) opened in the outer wall of the building (9) can be formed, and a polarizing system (1000) having different reflectivities toward both spaces according to the present invention can be installed therein. In other words, without installing a specific medium through which light transmits, such as a transparent window (W), in a certain space, only a polarizing system (1000) having different reflectivities toward both spaces according to the present invention can be installed.
본 발명에 따를 경우, 상기 흡수형 편광필름(100)의 상기 제1공간(S1)을 향한 표면(101)에는 반사방지처리를 할 수 있으며, 그러할 경우, 제1공간(S1)에서 인입되어 상기 흡수형 편광필름(100)에서 일어날 수 있는 표면반사를 줄일 수 있다. 예를 들어, 반사방지코팅을 하거나 반사방지코팅이 된 필름을 부착할 수 있을 것이다.According to the present invention, the surface (101) of the absorbent polarizing film (100) facing the first space (S1) can be subjected to an anti-reflection treatment, and in this case, surface reflection that may occur in the absorbent polarizing film (100) when introduced from the first space (S1) can be reduced. For example, an anti-reflection coating can be applied or a film with an anti-reflection coating can be attached.
본 발명에 따를 경우, 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)은 상호간에 이격되어 있을 수도 있지만, 상호간에 부착되어 있을 수도 있다.According to the present invention, the reflective polarizing film (200) and the absorptive polarizing film (100) may be spaced apart from each other, but may also be attached to each other.
이러한 경우, 도 4에서 보이는 바와 같이, 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)은 투명접착층(12)을 개재하여 상호간에 부착될 수 있는데, 상기 투명접착층(12)의 굴절율은 상기 반사형 편광필름(200)의 굴절율과 상기 흡수형 편광필름(100)의 굴절율의 사이의 값을 가지는 것이 바람직하다. 이것은 내부반사를 줄이기 위함이다.In this case, as shown in FIG. 4, the reflective polarizing film (200) and the absorbent polarizing film (100) can be attached to each other via a transparent adhesive layer (12), and it is preferable that the refractive index of the transparent adhesive layer (12) has a value between the refractive index of the reflective polarizing film (200) and the refractive index of the absorbent polarizing film (100). This is to reduce internal reflection.
반사형 편광필름(200)은 굴절율이 양방향으로 서로 다른 2가지 복굴절매질을 그 주축을 교대로 해서 쌓는 구조를 가지는 것이 보통인데, 상기 투명접착층(12)의 바람직한 굴절율을 판단하기 위해서는 반사형 편광필름(200)의 굴절율은 이들 복굴절매질들의 평균 굴절율을 사용할 수 있을 것이다.The reflective polarizing film (200) usually has a structure in which two birefringent media with different refractive indices in both directions are alternately stacked along their main axes. In order to determine the desirable refractive index of the transparent adhesive layer (12), the average refractive index of these birefringent media can be used as the refractive index of the reflective polarizing film (200).
한편, 흡수형 편광필름(100)은 편광이 일어나는 편광층과 이를 보호하기 위한 보호층으로 이루어지는데, 흡수형 편광필름(100)의 굴절율은 보호층의 굴절율을 사용하면 될 것이다.Meanwhile, the absorbent polarizing film (100) is composed of a polarizing layer in which polarization occurs and a protective layer to protect it. The refractive index of the absorbent polarizing film (100) can be used as the refractive index of the protective layer.
한편, 투명접착층(12)은 복굴절성이 없는 것이 바람직하며, 만일 있다면, 그 복굴절의 광학주축이 모두 반사형 편광필름(200)과 흡수형 편광필름(100)의 투과축과 평행하거나 수직하여야 할 것이다.Meanwhile, it is preferable that the transparent adhesive layer (12) does not have birefringence, and if it does, the optical principal axes of the birefringence should be parallel or perpendicular to the transmission axes of the reflective polarizing film (200) and the absorptive polarizing film (100).
도 4를 참고로, 상호간에 부착된 반사형 편광필름(200)과 흡수평 편광필름(100)은 도 3의 투명창(W)에서 상기 제1공간(S1)을 향한 면(W11)에 부착되고 있다.Referring to Fig. 4, the reflective polarizing film (200) and the absorbing flat polarizing film (100) attached to each other are attached to the surface (W11) facing the first space (S1) of the transparent window (W) of Fig. 3.
만일 도 3의 투명창(W)이, 도 5에서 보이는 바와 같이, 제1투명창(W1)과 제2투명창(W2)을 가지는 이중의 투명창으로서 상기 제1투명창(W1)은 상기 제1공간(S1) 쪽에 위치하고 상기 제2투명창(W2)은 상기 제2공간(S2) 쪽에 위치하고 있으면, 상기 상호간에 부착된 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)은 상기 제1투명창(W1)에서 상기 제2공간(S2)을 향한 면(W12)에 부착되어 있는 것이 바람직하다.If the transparent window (W) of FIG. 3 is a double transparent window having a first transparent window (W1) and a second transparent window (W2), as shown in FIG. 5, and the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side, it is preferable that the reflective polarizing film (200) and the absorptive polarizing film (100) attached to each other are attached to the surface (W12) of the first transparent window (W1) facing the second space (S2).
본 발명에 따를 경우, 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)이 상호간에 이격되어 배치되는 경우, 도 3의 투명창(W)이 제1투명창(W1)과 제2투명창(W2)을 가지는 이중의 투명창으로서 상기 제1투명창(W1)은 상기 제1공간(S1) 쪽에 위치하고 상기 제2투명창(W2)은 상기 제2공간(S2) 쪽에 위치하고 있으면, 도 6에서 보이는 바와 같이, 상기 반사형 편광필름(200)은 상기 제2투명창(W2)에서 상기 제1공간(S1)을 향한 면(W21)에 부착되고, 상기 흡수형 편광필름(100)은 상기 제1투명창(W1)에서 상기 제2공간(S2)을 향한 면(W12)에 부착되는 것이 바람직하다. According to the present invention, when the reflective polarizing film (200) and the absorptive polarizing film (100) are spaced apart from each other, and the transparent window (W) of FIG. 3 is a double transparent window having a first transparent window (W1) and a second transparent window (W2), and the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side, as shown in FIG. 6, it is preferable that the reflective polarizing film (200) be attached to a surface (W21) of the second transparent window (W2) facing the first space (S1), and the absorptive polarizing film (100) be attached to a surface (W12) of the first transparent window (W1) facing the second space (S2).
또한 도 7에서 보이는 바와 같이, 창(W)이 있고 그 양쪽으로 제1공간(S1)과 제2공간(S2)이 있는 경우, 유리창(W)의 제2공간쪽 면(201)에 반사형 편광필름(200)을 설치하고 제1공간쪽 면(101)에 흡수형 편광필름(100)을 설치할 수도 있을 것이다.Also, as shown in Fig. 7, when there is a window (W) and a first space (S1) and a second space (S2) on both sides of the window (W), a reflective polarizing film (200) may be installed on the second space side (201) of the window (W) and an absorptive polarizing film (100) may be installed on the first space side (101).
도 4 , 도 5, 도 6 및 도 7에서 보이는 반사형 편광필름(200)과 흡수형 편광필름(100)의 투명창(W)과 관련된 배치는 이들 필름(100)(200)이 보호되기 좋은 환경을 택한 것으로서 실시예를 보인 것에 지나지 않으며, 본 발명에 따른 조건하에서 자유롭게 이들 필름(100)(200)을 배치할 수 있다.The arrangement of the reflective polarizing film (200) and the absorptive polarizing film (100) shown in FIGS. 4, 5, 6 and 7 relative to the transparent window (W) is merely an example of an environment in which these films (100) (200) are well protected, and these films (100) (200) can be freely arranged under the conditions according to the present invention.
도 4, 도 5, 도 6 및 도 7에서는 유리창 등에 부착하여 고정하는 방법이 도시가 되어 있으나, 부착하여 고정하지 아니하고 블라인드나 롤스크린 형태로 하여 이들 필름의 설치와 제거를 자유롭게 할 수도 있는데 본 발명은 이러한 경우를 포함한다.In FIGS. 4, 5, 6 and 7, a method of attaching and fixing the film to a glass window or the like is illustrated, but instead of attaching and fixing the film, it may be installed and removed freely in the form of a blind or roller screen, and the present invention includes such a case.
또한, 도 4, 도 5, 도 6 및 도 7에서는 유리창의 전면에 반사형 편광필름(200)과 흡수형 편광필름(100)이 설치된 것을 보이고 있으나, 필요한 일부분의 영역에만 설치하는 것도 얼마든 가능함은 물론이다.In addition, FIGS. 4, 5, 6 and 7 show that a reflective polarizing film (200) and an absorptive polarizing film (100) are installed on the front surface of the glass window, but it is of course possible to install them only in a necessary portion of the area.
본 발명의 바람직한 실시예의 경우, 전술한 바와 같이, 도 8의 (c)를 참고로, 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 서로 평행을 이루고 있다.In a preferred embodiment of the present invention, as described above, with reference to (c) of FIG. 8, the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) are parallel to each other.
그런데, 만일 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 평행하지 않고 특정 각도를 이루고 있는 경우라면 제1공간(S1)에서 출발하여 흡수형 편광필름(100)을 투과하여 특정 방향으로 편광 된 빛의 일부 성분이 반사형 편광필름(200)의 반사축의 방향과 동일하게 되어 반사되게 되고 이에 따라 제1공간(S1)에서 흡수형 편광필름(100)과 반사형 편광필름(200)으로 출발한 빛의 일부가 이들 흡수형 편광필름(100)과 반사형 편광필름(200)에서 제1공간(S1)으로 반사를 이루게 되고, 또 이렇게 반사되는 빛은 투과되지 못하여 제1공간(S1)에서 제2공간(S2)으로 나가는 빛도 줄어들게 된다.However, if the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) are not parallel but form a specific angle, some of the light that starts from the first space (S1), passes through the absorption-type polarizing film (100), and is polarized in a specific direction is reflected in the same direction as the reflection axis of the reflection-type polarizing film (200), and accordingly, some of the light that starts from the first space (S1) to the absorption-type polarizing film (100) and the reflection-type polarizing film (200) is reflected from the absorption-type polarizing film (100) and the reflection-type polarizing film (200) to the first space (S1), and the light reflected in this way is not transmitted, so the light that goes from the first space (S1) to the second space (S2) is also reduced.
결과적으로 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 평행할 때와 비교하여, 평행하지 않고 특정 각도를 이루고 있는 경우라면, 제1공간(S1)에서 흡수형 편광수단(100)과 반사형 편광수단(200)을 통과하여 제2공간(S2)으로, 제2공간(S2)에서 반사형 편광수단(200)과 흡수형 편광수단(100)을 통과하여 제1공간(S1)으로 이르는 빛의 양은 모두 줄어들게 되며, 제1공간(S1)에서 출발하여 이들 흡수형 편광필름(100)과 반사형 편광필름(200)에서 다시 제1공간(S1)으로 반사되는 빛은 증가하게 되어 제2공간(S2)에서 제1공간(S1)을 볼 때의 시선차단 효과는 증가한다고 할 수 있으나, 제1공간(S1)에서 제2공간(S2)을 보는 조망은 상대적으로 어둡게 되며, 반사율이 증가되어 조망방해도 상대적으로 커지게 된다.As a result, when the transmission axes (100a) (200a) of the absorption type polarizing means (100) and the reflection type polarizing means (200) are not parallel and form a specific angle compared to when they are parallel, the amount of light that passes through the absorption type polarizing means (100) and the reflection type polarizing means (200) in the first space (S1) to the second space (S2), and from the second space (S2) to the reflection type polarizing means (200) and the absorption type polarizing means (100) to the first space (S1) are all reduced, and the amount of light that starts from the first space (S1) and is reflected back to the first space (S1) from the absorption type polarizing film (100) and the reflection type polarizing film (200) increases, so it can be said that the line of sight blocking effect when viewing the first space (S1) from the second space (S2) increases, but when viewing the second space (S2) from the first space (S1), The view becomes relatively dark, and the reflectivity increases, so the obstruction of the view becomes relatively greater.
이러한 현상을 살펴보면, 제1공간(S1)에서 출발하여 흡수형 편광필름(100)을 통과하여 반사형 편광필름(200)에서 반사된 후 다시 흡수형 편광필름(100)을 투과하여 제1공간(S1)으로 반사되는 빛의 세기(이하 "제1반사광의 세기")는 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 상호간에 이루는 각도(θ)에 대하여 sinθ에 비례하며 제2공간(S2)에서 제1공간(S1)으로 이들 필름(200)(100)을 투과하거나 또는 제1공간(S1)에서 제2공간(S2)으로 이들 필름(100)(200)을 투과하는 빛의 세기는 cosθ에 비례하는 경향을 가짐을 알 수 있다.Looking at this phenomenon, it can be seen that the intensity of light (hereinafter, “intensity of first reflected light”) that starts from the first space (S1), passes through the absorbent polarizing film (100), is reflected by the reflective polarizing film (200), and then passes through the absorbent polarizing film (100) again and is reflected back to the first space (S1) is proportional to sinθ with respect to the angle (θ) formed between the directions of the transmission axes (100a) (200a) of the absorbent polarizing means (100) and the reflective polarizing means (200), and the intensity of light that passes through these films (200) (100) from the second space (S2) to the first space (S1) or passes through these films (100) (200) from the first space (S1) to the second space (S2) tends to be proportional to cosθ.
예를 들어, 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 상호간에 이루는 각도(θ)가 90° 또는 수직인 경우, 그 sinθ의 값은 1이고 그 cosθ의 값은 0으로서, 상기 제1반사광의 세기는 최고가 되며, 제1공간(S1)과 제2공간(S2)의 사이에서 흡수형 편광수단(100)과 반사형 편광수단(200)을 상호간에 투과하는 빛은 없게 된다.For example, when the angle (θ) formed between the directions of the transmission axes (100a) (200a) of the absorption-type polarization means (100) and the reflection-type polarization means (200) is 90° or vertical, the value of sinθ is 1 and the value of cosθ is 0, so the intensity of the first reflected light becomes the maximum, and no light is transmitted between the absorption-type polarization means (100) and the reflection-type polarization means (200) between the first space (S1) and the second space (S2).
따라서 이러한 원리를 이용하여 상호간에 평행하게 배치되는 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 상호간에 이루는 각도(θ)를 적용되는 상황에 맞게 결정하여 최적의 효과를 얻을 수 있을 것이다.Therefore, by utilizing this principle, the angle (θ) formed between the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) that are arranged parallel to each other can be determined according to the applicable situation to obtain an optimal effect.
기본적으로 조망과 프라이버시(privacy)를 모두 고려하여 제1공간(S1)으로부터 제2공간(S2)을 보는 조망을 좋게 하고, 제2공간(S2)으로부터 제1공간(S1)을 보는 조망을 악화시키는 시선차단의 효과를 얻기 위한 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향은 상호간에 평행을 이루는 경우가 바람직하다고 할 것이다. Basically, considering both the view and privacy, it is preferable that the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) be parallel to each other in order to obtain the effect of blocking the view, which improves the view from the first space (S1) to the second space (S2) and worsens the view from the second space (S2) to the first space (S1).
하지만 반드시 이 범위에서만 적용될 것은 아니라 할 것이고, 한편으로 본 발명은 본질적으로 제1공간(S1)과 제2공간(S2) 양쪽을 향한 반사율을 서로 다르게 하는 것으로서 이들 반사율을 다르게 할 수 있는 각도(θ1)의 범위를 가진다면 본 발명을 만족한다고 할 것이다.However, it may not necessarily be applied only in this range, and on the other hand, the present invention is essentially to make the reflectivity toward both the first space (S1) and the second space (S2) different from each other, and if there is a range of angles (θ1) that can make these reflectivity different, it may be said to satisfy the present invention.
한편으로, 발명자가 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 이루는 각도를 조정해가면서 행한 육안관찰에 의한 실험에 의하면, 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 상호간에 평행을 이룰 때 이들이 이루는 각도(θ1)를 0°로 잡으면 이로부터 +25° 또는 -25°까지의 범위(+25°와 -25° 포함)에서는 투과광이 줄어드는 것에 비하여 제1반사광은 그리 커지지 않아서 제1공간(S1)에서 제2공간(S2)을 조망하는 것에 큰 문제가 발생하지 아니하였으며, 이로부터 +10° 또는 -10°까지의 범위(+10°와 -10° 포함)에서는 투과광에 비하여 제1반사광이 거의 발생하지 않아 조망에 큰 영향이 없었다.On the other hand, according to an experiment conducted by the inventor through visual observation while adjusting the angle formed by the direction of the transmission axis (100a) (200a) of the absorption-type polarization means (100) and the reflection-type polarization means (200), when the direction of the transmission axis (100a) (200a) of the absorption-type polarization means (100) and the reflection-type polarization means (200) are parallel to each other, and when the angle (θ1) formed by them is set to 0°, in the range from this to +25° or -25° (including +25° and -25°), the transmitted light decreases, whereas the first reflected light does not increase much, so there is no major problem in viewing the second space (S2) from the first space (S1), and in the range from this to +10° or -10° (including +10° and -10°), the first reflected light hardly occurs compared to the transmitted light, so there is no major effect on viewing. There wasn't any.
도 8의 (a)와 (b)는, 도 8의 (c)의 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 상호간에 평행을 이룰 때 이들이 이루는 각도(θ1)를 0°으로 하여, 이들 +θ1와 -θ1의 범위를 도식적으로 보이고 있다.Figures 8 (a) and (b) schematically show the ranges of +θ1 and -θ1, taking the angle (θ1) formed by the absorption-type polarizing means (100) and the reflection-type polarizing means (200) of Figure 8 (c) as 0° when the directions of the transmission axes (100a) (200a) are parallel to each other.
따라서 본 발명에 따를 경우, 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 상호간에 평행을 이룰 때 이들이 이루는 각도(θ1)를 0°으로 잡으면 이로부터 +25° 또는 -25°까지의 범위(+25°와 -25° 포함)에 있어야 하며, 바람직하기로는 이로부터 +10° 또는 -10°까지의 범위(+10°와 -10° 포함)에 있어야 하며, 가장 바람직하게는 0°(상호간에 평행)이어야 할 것이다.Accordingly, according to the present invention, when the directions of the transmission axes (100a) (200a) of the absorption-type polarizing means (100) and the reflection-type polarizing means (200) are parallel to each other, the angle (θ1) they form should be in the range of +25° or -25° (inclusive of +25° and -25°) from this, preferably in the range of +10° or -10° (inclusive of +10° and -10°), and most preferably 0° (parallel to each other).
본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)이 설치되었을 때, 반사형 편광필름(200)에서 반사되는 반사광이 눈부심을 야기할 수 있다.When a polarizing system (1000) having different reflectivity toward both spaces according to the present invention is installed, the reflected light reflected from the reflective polarizing film (200) may cause glare.
예를 들어서, 도 9를 참고로, 건물 91의 투명창(W91)에 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)이 설치되었는데, 반사형 편광필름(200)이 외부공간인 제2공간(S2)으로 향하도록 배치되어 있는 상황에서, 햇빛(R71)이 반사형 편광필름(200)에 도달한 후 인접한 건물(92)의 투명창(W92)으로 반사되고 있다.For example, referring to FIG. 9, a polarizing system (1000) with different reflectivity toward both spaces is installed on a transparent window (W91) of building 91, and a reflective polarizing film (200) is positioned to face the second space (S2), which is an external space. In this situation, sunlight (R71) reaches the reflective polarizing film (200) and is reflected toward the transparent window (W92) of an adjacent building (92).
이에 따라서 건물(92)의 투명창(W92)을 투과하는 반사광(R72)이 그 내부의 거주자에게 눈부심을 야기할 수 있는 것이다.Accordingly, the reflected light (R72) passing through the transparent window (W92) of the building (92) may cause glare to the residents inside.
이러한 경우, 상기 투명창(W92)은 상기 반사형 편광필름(200)에서 반사된 반사광(R72)이 투과하는 반사광투과수단이 되고, 상기 투명창(W92)에서 상기 반사광(R72)이 인입되는 면은 평면(제3평면)을 이루고 있는 것이다.In this case, the transparent window (W92) becomes a reflective light transmitting means through which the reflected light (R72) reflected from the reflective polarizing film (200) passes, and the surface through which the reflected light (R72) enters the transparent window (W92) forms a flat surface (third plane).
도 10을 참고로, 반사광투과수단인 투명창(W92)이 놓이는 평면(W92P)이 상기 반사광(R72)이 인입되는 제3평면이 된다. Referring to Figure 10, the plane (W92P) on which the transparent window (W92), which is a reflective light transmitting means, is placed becomes the third plane into which the reflected light (R72) is introduced.
이와 같이 양쪽의 공간을 향한 반사율이 서로 다른 편광시스템(1000)이 설치되었을 때, 반사형 편광필름(200)에서 반사되는 반사광이 반사광투과수단(W92)을 투과하여 발생하는 눈부심을 막기 위한 방안을 본 발명은 제시한다.The present invention proposes a method for preventing glare caused by reflected light reflected from a reflective polarizing film (200) passing through a reflective light transmitting means (W92) when a polarizing system (1000) having different reflectivity toward the space on both sides is installed.
우선, 상기 반사형 편광필름(200)에서 상기 제3평면(W92P)을 향하는 상기 반사광(R72)의 방향을 따라서 상기 반사형 편광필름(200)의 반사축(200a)의 방향을 상기 제3평면(W92P)에 투영(사영)한다. First, the direction of the reflection axis (200a) of the reflective polarizing film (200) is projected onto the third plane (W92P) along the direction of the reflected light (R72) toward the third plane (W92P) in the reflective polarizing film (200).
도 10의 (a)는 반사형 편광필름(200)의 반사축(200a)의 방향을 상기 제3평면(W92P)에 투영(사영)하는 것을 보인다.Figure 10 (a) shows that the direction of the reflection axis (200a) of the reflective polarizing film (200) is projected onto the third plane (W92P).
다음, 이렇게 투영(사영)되어진 반사형 편광필름(200)의 반사축(200a)의 방향과 일치하는 반사축(200a')의 방향을 갖는 반사형 편광필름(300)을 상기 반사광투과수단(W92)에 상기 제3평면(W92P)과 평행하게 배치한다.Next, a reflective polarizing film (300) having a direction of a reflection axis (200a') that matches the direction of a reflection axis (200a) of the reflective polarizing film (200) projected in this manner is placed parallel to the third plane (W92P) on the reflective light transmitting means (W92).
또는, 이렇게 투영(사영)되어진 반사형 편광필름(200)의 반사축(200a)의 방향과 일치하는 흡수축(200a')의 방향을 갖는 흡수형 편광필름(300')을 상기 반사광투과수단(W92)에 상기 제3평면(W92P)과 평행하게 배치한다.Alternatively, an absorption-type polarizing film (300') having an absorption axis (200a') direction that matches the direction of the reflection axis (200a) of the reflective polarizing film (200) projected in this way is placed parallel to the third plane (W92P) on the reflection-type light transmitting means (W92).
도 10의 (b)에서 보이는 바와 같이, 상기 반사광투과수단인 투명창(W92)에 상기 반사형 편광필름(300)이나 흡수형 편광필름(300')을 부착하는 것이 바람직할 것이다. 도시부호 S3는 투명창(W92)이 설치되는 건물(92)의 내부공간이다.As shown in (b) of Fig. 10, it would be desirable to attach the reflective polarizing film (300) or the absorptive polarizing film (300') to the transparent window (W92), which is the reflective light transmitting means. City symbol S3 is the interior space of the building (92) where the transparent window (W92) is installed.
이렇게 하는 경우, 건물(91)의 투명창(W91)에 설치된 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)의 반사형 편광필름(200)에서 반사된 반사광(R72)이 반사광투과수단인 인접건물(92)의 투명창(W92)에 설치된 반사형 편광필름(300)에 의하여 반사되거나 또는 흡수형 편광필름(300')에 의하여 흡수되게 된다. In this case, the reflected light (R72) reflected from the reflective polarizing film (200) of the polarizing system (1000) with different reflectivity toward both spaces installed in the transparent window (W91) of the building (91) is reflected by the reflective polarizing film (300) installed in the transparent window (W92) of the adjacent building (92), which is a means for transmitting reflected light, or is absorbed by the absorbent polarizing film (300').
즉 반사형 편광필름(200)에서 반사된 반사광(R72)이 인접건물(92)의 투명창(W92)을 투과하지 못하게 되고, 건물(92)의 내부공간(S3)의 거주자에게 눈부심을 야기하지 못하게 된다.That is, the reflected light (R72) reflected from the reflective polarizing film (200) is prevented from passing through the transparent window (W92) of the adjacent building (92), and does not cause glare to the occupants of the interior space (S3) of the building (92).
실질적으로는, 예를 들어, 반사광투과수단인 인접건물(92)의 투명창(W92)에서 반사형 편광필름(300) 또는 흡수형 편광필름(300')을 회전시켜가면서 반사광(R72)이 투과하지 못하는 이들 필름(300)(300')의 반사축 또는 흡수축의 방향(200a')을 찾을 수 있으며, 이렇게 하여 정확한 방향을 찾았다면 그 방향은 위와 같이 상기 반사형 편광필름(200)의 반사축(200a)의 방향을 상기 제3평면(W92P)에 투영(사영)하여 얻은 방향과 일치하게 될 것이다.In practice, for example, by rotating the reflective polarizing film (300) or the absorbing polarizing film (300') in the transparent window (W92) of the adjacent building (92), which is a reflective light transmitting means, the direction (200a') of the reflection axis or absorption axis of the film (300) (300') through which the reflected light (R72) cannot pass can be found, and if the exact direction is found in this way, the direction will match the direction obtained by projecting (projecting) the direction of the reflection axis (200a) of the reflective polarizing film (200) onto the third plane (W92P) as above.
도 9와 도 10을 참고로 설명한 바와 같이 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)의 반사형 편광필름(200)에서 반사된 반사광이 투과하는 반사광투과수단은 투명창(W92)과 같이 빛이 투과하는 매질인 것이 일반적이겠지만, 반드시 이에 한정되는 것은 아니며, 빈 공간이 될 수도 있다.As described with reference to FIGS. 9 and 10, the reflective light transmitting means through which the reflected light reflected from the reflective polarizing film (200) of the polarizing system (1000) having different reflectances toward both spaces is transmitted is generally a medium that transmits light, such as a transparent window (W92), but is not necessarily limited thereto and may be an empty space.
예를 들어, 도 9와 도 10을 참고로, 건물(92)의 내부공간(S3)은 뚫린 공간을 통하여 그 외부의 공간(S2)과 연통할 수 있고, 건물(91)에 설치된 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)의 반사형 편광필름(200)에서 반사된 반사광(R72)이 상기 건물(92)의 뚫린 공간으로 투과되어 내부공간(S3)의 거주자를 눈부시게 할 수 있는 것이다. For example, referring to FIGS. 9 and 10, the interior space (S3) of a building (92) can be connected to the exterior space (S2) through an open space, and the reflected light (R72) reflected from the reflective polarizing film (200) of the polarizing system (1000) having different reflectances toward the two spaces installed in the building (91) can be transmitted through the open space of the building (92) and dazzle the occupants of the interior space (S3).
이러한 경우, 건물(92)의 뚫린 공간에 전술한 반사형 편광필름(300) 또는 흡수형 편광필름(300')을 설치하여, 건물(91)에 설치된 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)의 반사형 편광필름(200)에서 반사된 반사광(R72)이 건물(92)의 뚫린 공간을 투과하지 못하게 할 수 있는 것이다.In this case, by installing the aforementioned reflective polarizing film (300) or absorptive polarizing film (300') in the open space of the building (92), the reflected light (R72) reflected from the reflective polarizing film (200) of the polarizing system (1000) having different reflectances toward the two spaces installed in the building (91) can be prevented from penetrating the open space of the building (92).
본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)이 설치되었을 때, 제2공간(S2)으로부터 반사형 편광필름(200)으로 입사되는 특정 반사광(R92)을 제거하도록 할 수 있다.When a polarizing system (1000) having different reflectances toward both spaces according to the present invention is installed, it is possible to remove specific reflected light (R92) incident on the reflective polarizing film (200) from the second space (S2).
도 11을 참고로, 예를 들어서 건물(93)의 투명창(W93)에 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)이 설치되어 그 반사형 편광필름(200)이 외부공간인 제2공간(S2)을 향하여 배치되어있다.Referring to Fig. 11, for example, a polarizing system (1000) having different reflectances toward both spaces according to the present invention is installed in a transparent window (W93) of a building (93), and the reflective polarizing film (200) is positioned toward the second space (S2), which is an external space.
이 경우 햇빛(R91)이 호수(80)에서 반사되어 그 반사광(R92)이 투명창(W93)에 설치된 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)의 반사형 편광필름(200)으로 향하고 있고, 이 반사광(R92)이 건물내부의 공간인 제1공간(S1)의 거주자에게 눈부심을 야기하여 이를 제거할 필요가 있는 것이다.In this case, sunlight (R91) is reflected from the lake (80), and the reflected light (R92) is directed toward the reflective polarizing film (200) of the polarizing system (1000) with different reflectivity toward both spaces installed in the transparent window (W93), and this reflected light (R92) causes glare to the occupants of the first space (S1), which is a space inside the building, and thus it is necessary to remove it.
이를 위하여, 도 12에서 보이는 바와 같이, 건물(93)의 외부인 제2공간(S2)을 향한 쪽에 배치된 상기 반사형 편광필름(200)은 그 반사축의 방향(200b')이 상기 제2공간(S2)을 통과하여 입사되는 외부의 제거하고자 하는 반사광(R92)의 편광방향(200b)과 일치하도록 설치한다.To this end, as shown in Fig. 12, the reflective polarizing film (200) placed on the side facing the second space (S2) outside the building (93) is installed so that the direction (200b') of its reflection axis matches the polarization direction (200b) of the external reflected light (R92) to be removed that passes through the second space (S2).
반사광은 전부 또는 일부 편광이 되는 것으로서, 반사광(R92) 중 편광된 빛의 편광방향(200b)과 건물(93)의 외부인 제2공간(S2)을 향한 쪽에 배치된 상기 반사형 편광필름(200)의 반사축의 방향(200b')이 일치하면 반사광(R92)은 상기 반사형 편광필름(200)을 투과하지 못하고 반사가 될 것이다.The reflected light is partially or fully polarized, and if the polarization direction (200b) of the polarized light among the reflected light (R92) and the direction (200b') of the reflection axis of the reflective polarizing film (200) placed toward the second space (S2) outside the building (93) are identical, the reflected light (R92) will not be able to pass through the reflective polarizing film (200) and will be reflected.
실질적으로는, 예를 들어, 상기 반사형 편광필름(200)을 회전시키면서 반사광(R92)이 투과하지 못하는 반사축(200b')의 방향을 찾을 수 있다.In practice, for example, by rotating the reflective polarizing film (200), the direction of the reflection axis (200b') through which the reflected light (R92) does not pass can be found.
본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)은 관찰실과 조사실에 대하여 적용될 수 있다.The polarization system (1000) according to the present invention having different reflectivities toward both spaces can be applied to an observation room and an investigation room.
관찰실과 조사실이라 함은, 예를 들어서, 수사기관에서 피조사자를 조사실에 두고 관찰실의 관찰자는 조사실의 피조사자를 관찰할 수 있는 구조로 되어 있는 두 개의 공간을 말한다.Observation room and investigation room refer to two spaces structured so that, for example, an investigative agency can place a subject of investigation in the investigation room and an observer in the observation room can observe the subject of investigation in the investigation room.
이 경우 조사실에서는 관찰실 내부를 볼 수 없어야 하며, 관찰실에서는 조사실을 볼 수 있어야 한다. 이를 위하여 종래기술은 관찰실과 조사실 사이에 유리창을 두고 이 유리창에 반반사필름을 설치하고 조사실에 강한 조명을 설치하고 있다.In this case, the observation room must be visible from the investigation room, and the investigation room must be visible from the observation room. To achieve this, conventional techniques have involved placing a glass window between the observation room and the investigation room, installing a semi-reflective film on the window, and installing strong lighting in the investigation room.
도 13과 도 14는 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)이 관찰실과 조사실에 대하여 적용된 것을 보인다.Figures 13 and 14 show that a polarization system (1000) with different reflectances toward both spaces according to the present invention is applied to an observation room and an investigation room.
본 발명의 제1공간(S1)이 관찰실이 되고, 본 발명의 제2공간(S2)이 조사실이 된다.The first space (S1) of the present invention becomes an observation room, and the second space (S2) of the present invention becomes an investigation room.
도 13을 참고로, 조사실(S2)에는 조명(6)이 설치되고 있으며, 제1공간(S1)과 제2공간(S2)의 사이에 투명유리(W)가 설치되고 이 투명유리(W)에 본 발명에 따라 흡수형 편광필름(100)과 반사형 편광필름(200)이 설치된다.Referring to Fig. 13, lighting (6) is installed in the investigation room (S2), transparent glass (W) is installed between the first space (S1) and the second space (S2), and an absorption-type polarizing film (100) and a reflective polarizing film (200) according to the present invention are installed on the transparent glass (W).
이러한 구성으로 기본적으로 관찰실(S1)에서 조사실(S2)을 보면 조망은 방해받지 않고, 조사실(S2)에서 관찰실(S1)을 보면 시선이 차단된다.With this configuration, the view is basically unobstructed when looking from the observation room (S1) to the investigation room (S2), but the view is blocked when looking from the investigation room (S2) to the observation room (S1).
따라서 관찰실(S1)의 관찰자(3a)는 조사실(S2)의 피조사자(3c)를 볼 수 있지만, 조사실(S2)의 피조사자(3c)는 관찰실(S1)의 관찰자(3a)를 볼 수 없게 된다.Accordingly, the observer (3a) in the observation room (S1) can see the subject (3c) in the investigation room (S2), but the subject (3c) in the investigation room (S2) cannot see the observer (3a) in the observation room (S1).
본 발명은 이러한 기본적인 구성으로부터 확장하여, 조사실(S2)에서 피조사자(3c)는 관찰실(S1) 내부를 볼 수 없지만 조사실(S2)에 있는 조사자(3b)는 관찰실(S1) 내부를 볼 수 있게 한다. 이렇게 함으로써 조사실(S2)에 있는 조사자(3b)는, 예를 들어, 관찰실(S1)의 관찰자(3a)의 행동을 볼 수 있으며 관찰자(3a)자의 수신호를 보거나 관찰실(S1)에 설치된 디스플레이 수단이 보이는 디스플레이를 볼 수 있어 조사에 도움이 된다.The present invention expands upon this basic configuration so that the subject (3c) in the investigation room (S2) cannot see the inside of the observation room (S1), but the investigator (3b) in the investigation room (S2) can see the inside of the observation room (S1). By doing so, the investigator (3b) in the investigation room (S2) can, for example, see the actions of the observer (3a) in the observation room (S1), see the hand signals of the observer (3a), or see a display that shows a display means installed in the observation room (S1), which is helpful for the investigation.
이 경우, 상기 제2공간인 조사실(S2)의 조사관(3b)의 눈에 대하여 조사용 편광수단(800)이 설치된다.In this case, a polarizing means (800) for investigation is installed for the eyes of the investigator (3b) in the investigation room (S2), which is the second space.
상기 조사관(3b)은 안경형태의 프레임(8)을 착용하고 있을 수 있는데, 상기 안경형태의 프레임(8)에 상기 조사용 편광수단(800)이 설치될 수 있다. 이것은 예를 들어 편광선글라스이다.The above investigator (3b) may be wearing a frame (8) in the form of glasses, and the polarizing means (800) for investigation may be installed in the frame (8) in the form of glasses. This is, for example, polarized sunglasses.
본 발명에 따를 경우, 상기 조사용 편광수단(800)의 투과축(800c)의 방향은 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)의 투과축(200c)(100c)의 방향과 평행을 이룬다. 따라서 상기 반사형 편광수단(200)의 반사축의 방향과는 수직을 이룰 것이다.According to the present invention, the direction of the transmission axis (800c) of the polarizing means (800) for investigation is parallel to the direction of the transmission axis (200c) (100c) of the reflective polarizing film (200) and the absorbent polarizing film (100). Therefore, it will be perpendicular to the direction of the reflection axis of the reflective polarizing means (200).
이러한 경우, 제2공간인 조사실(S2)의 조명(6)으로부터 출발하여 반사형 편광필름(200)에서 반사되어 상기 조사용 편광수단(800)으로 입사되는 반사광(612)은 상기 조사용 편광수단(800)을 투과하지 못한다.In this case, the reflected light (612) that originates from the light (6) of the second space, the investigation room (S2), is reflected from the reflective polarizing film (200), and is incident on the investigation polarizing means (800), does not pass through the investigation polarizing means (800).
상기 반사광(612)의 편광방향은 일반적인 상황에서 상기 반사형 편광필름(200)의 반사축의 방향을 가질 것으로서, 상기 반사형 편광필름(200)의 반사축의 방향과는 수직을 이루는 투과축(800c)의 방향을 가지는 조사용 편광수단(800)을 투과하지 못하는 것이다.The polarization direction of the above reflected light (612) will have the direction of the reflection axis of the above reflective polarizing film (200) in a general situation, and will not transmit through the polarizing means (800) for investigation, which has the direction of the transmission axis (800c) perpendicular to the direction of the reflection axis of the above reflective polarizing film (200).
아주 엄밀한 의미에서 상기 반사형 편광필름(200)에서 반사되는 모든 반사광(612)의 편광방향이 동일한 방향을 가지게 되는 것은 아니지만, 통상 관찰실(S1)과 조사실(S2) 사이에 설치될 것으로 보이는 유리창(W)의 위치와 일반적인 사람의 앉거나 선 키 높이 및 조사자(3b)가 조사시에 위치할 것으로 보이는 위치 및 일반적으로 조명(6)이 설치되는 위치 등을 모두 고려할 때, 조사자(3b)에게 향하는 반사광(612)은 특정 방향의 편광방향을 갖게 되고 그 방향은 거의 대부분의 경우 반사형 편광필름(200)의 반사축의 방향을 그대로 따를 것으로서 이 반사축과 수직인 투과축(800c)을 가지는 조사용 편광수단(800)을 투과하지 못한다고 보아도 무방할 것이다.In a very strict sense, the polarization direction of all the reflected light (612) reflected from the reflective polarizing film (200) does not have the same direction, but when considering the position of the glass window (W) that is likely to be installed between the observation room (S1) and the investigation room (S2), the height of a typical person sitting or standing, the position where the investigator (3b) is likely to be positioned during the investigation, and the position where the light (6) is generally installed, the reflected light (612) directed toward the investigator (3b) will have a polarization direction in a specific direction, and in most cases, this direction will follow the direction of the reflection axis of the reflective polarizing film (200), so it can be seen that it does not transmit the investigation polarizing means (800) having the transmission axis (800c) that is perpendicular to the reflection axis.
한편으로, 제1공간인 관찰실(S1) 내부에서 출발하여 흡수형 편광필름(100)과 반사형 편광필름(200)을 투과하여 제2공간인 조사실(S2)로 인입된 빛(10")은 그 편광방향이 상기 조사용 편광수단(800)의 투과축(800c)과 일치하게 된다. On the one hand, light (10") that starts from inside the first space, the observation room (S1), passes through the absorption-type polarizing film (100) and the reflective polarizing film (200), and enters the second space, the investigation room (S2), has its polarization direction aligned with the transmission axis (800c) of the investigation polarizing means (800).
도 13의 (b)에서 100c, 200c는 각각 흡수형 편광필름(100)과 반사형 편광필름(200)의 투과축의 방향을 보인다. In (b) of Fig. 13, 100c and 200c show the direction of the transmission axis of the absorption-type polarizing film (100) and the reflective polarizing film (200), respectively.
따라서 조사관(3b)은 조명(6)의 반사광(612)의 방해를 받지 않으면서 제1공간인 관찰실(S1) 내부를 볼 수 있게 되는 것이고 관찰자(3a)의 수신호를 보거나 관찰실(S1)에 설치된 디스플레이 수단이 보이는 디스플레이를 볼 수 있어 조사에 도움이 된다.Accordingly, the investigator (3b) can view the inside of the first space, the observation room (S1), without being obstructed by the reflected light (612) of the light (6), and can view the hand signal of the observer (3a) or the display of the display means installed in the observation room (S1), which is helpful for the investigation.
도 14는 본 발명이 확장되어 조사실(S2)의 조명(6)으로부터 직접 관찰실(S1)로 가는 직사광선이 관찰실(S1)에서 보이지 않게 하여 관찰실(S1)의 관찰자(3a)가 조명(6)의 직사광선으로 인하여 방해를 받지 않고 조사실(S2)을 볼 수 있게 하여 피조사자(3c)를 더욱 잘 관찰할 수 있도록 하는 구성에 대하여 설명한다.FIG. 14 describes a configuration in which the present invention is extended to prevent direct sunlight from the light (6) of the investigation room (S2) to the observation room (S1) from being visible from the observation room (S1), thereby allowing an observer (3a) of the observation room (S1) to view the investigation room (S2) without being obstructed by the direct sunlight of the light (6), thereby enabling better observation of the subject (3c).
여기서, 조사실(S2)의 조명(6)으로부터 직접 관찰실(S1)로 가는 직사광선이라 함은 조사실(S2)의 조명(6)으로부터 방출되는 빛이 조사실(S2)의 여타 다른 물체에 도달하였다가 반사되어 관찰실(S1)로 가는 경우를 배제하고 직접 관찰실(S1)로 가는 광선을 말하는 것이다.Here, the direct sunlight from the light (6) of the investigation room (S2) directly to the observation room (S1) refers to the light that goes directly to the observation room (S1), excluding the case where the light emitted from the light (6) of the investigation room (S2) reaches other objects in the investigation room (S2) and is reflected and goes to the observation room (S1).
이 경우, 상기 조사실(S2)의 조명(6)과 상기 반사형 편광필름(200)의 사이에는 상기 조사실(S2)의 조명(6)으로부터 상기 반사형 편광필름(200)으로 방출되는 직사광선을 가리도록 조명용 편광수단(600)이 설치된다.In this case, a polarizing means (600) for lighting is installed between the light (6) of the investigation room (S2) and the reflective polarizing film (200) to block direct sunlight emitted from the light (6) of the investigation room (S2) to the reflective polarizing film (200).
상기 조명(6)의 빛(610)은 조명용 편광수단(600)을 투과하여 빛(610')가 되어 반사형 편광필름(200)으로 직접 입사가 된다.The light (610) of the above lighting (6) passes through the lighting polarizing means (600) to become light (610') and is directly incident on the reflective polarizing film (200).
이 경우, 상기 조명용 편광수단(600)은 상기 반사형 편광수단(200)의 반사축(200d)의 방향이 상기 조명(6)에서 상기 반사형 편광수단(200)을 향하여 조사되는 빛(610)의 경로를 역으로 따른 역경로(-610')를 따라 상기 조명용 편광수단(600)을 향하여 투영(사영)된 반사축(200d')의 방향과 일치하는 투과축을 가진다. (도 17 참고) In this case, the polarizing means (600) for lighting has a transmission axis that coincides with the direction of the reflection axis (200d) of the reflective polarizing means (200) that is projected (projected) toward the polarizing means (600) for lighting along a reverse path (-610') that follows the reverse path of the path of the light (610) irradiated toward the reflective polarizing means (200) from the light (6). (See Fig. 17)
이에 따라서, 상기 조명(6)에서 출발하여 상기 조명용 편광수단(600)을 투과한 빛(610')의 편광방향은 상기 빛(610')이 반사형 편광필름(200)에 닿았을 때 반사형 편광필름(200)의 반사축의 방향(200d)과 일치하게 되며, 상기 반사형 편광필름(200)을 투과하지 못하고 반사만을 일으킨다.Accordingly, the polarization direction of light (610') transmitted from the above lighting (6) and through the above lighting polarizing means (600) coincides with the direction (200d) of the reflection axis of the reflective polarizing film (200) when the light (610') reaches the reflective polarizing film (200), and only causes reflection without transmitting through the reflective polarizing film (200).
이에 따라서, 조사실(S2)의 조명(6)에서 나와 직접 관찰실(S1)로 가는 직사광선은 관찰실(S1)로 투과되지 못하게 되어 관찰실(S1)의 관찰자(3a)는 조명(6)의 직사광선으로 인한 눈부심으로 인하여 방해를 받지 않고 조사실(S2)을 볼 수 있게 되고, 피조사자(3c)를 더욱 잘 관찰할 수 있게 되는 반면에, 조사실(S2)의 조명(6)에서 나와 직접 반사형 편광수단(200)으로 향하는 빛은 반사형 편광수단(200)에서 모두 반사되기 때문에 반사광이 매우 강하게 되고 이로 인하여 피조사자(3c)는 관찰실(S1) 내부를 더욱더 보기 어렵게 된다. Accordingly, direct sunlight from the light (6) of the investigation room (S2) and directly directed to the observation room (S1) is prevented from penetrating into the observation room (S1), so that the observer (3a) of the observation room (S1) can view the investigation room (S2) without being disturbed by the glare from the direct sunlight of the light (6) and can observe the subject (3c) better. On the other hand, light from the light (6) of the investigation room (S2) and directly directed to the reflective polarizing means (200) is completely reflected by the reflective polarizing means (200), so that the reflected light becomes very strong, and as a result, it becomes more difficult for the subject (3c) to see the inside of the observation room (S1).
본 발명에 따를 경우, 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)은 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가질 수 있다. 즉 글자, 도안, 캐릭터 등의 형태를 가질 수 있는 것이다.According to the present invention, either or both of the reflective polarizing means (200) and the absorptive polarizing means (100) may have a specific shape for decoration, advertising, or information transmission. That is, they may have the shape of letters, designs, characters, etc.
한편으로, 이러한 경우, 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)은 상기 제2공간에서 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)을 바라보았을 때 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분이 상호간에 겹치도록 배치될 수 있다.On the one hand, in this case, the reflective polarizing means (200) and the absorbing polarizing means (100) may be positioned so that when looking at the reflective polarizing means (200) and the absorbing polarizing means (100) from the second space, one of them is positioned within the area of the other, or each part overlaps with the other.
본 발명이 이와 같이 적용되는 경우, 도 1을 참고로 설명한 기본적인 구성을 그대로 따르며, 반사형 편광수단(200)과 흡수형 편광수단(100) 각각의 투과축의 방향이 상호간에 일치하는 경우(평행하는 경우 또는 상호간에 이루는 각도가 0°인 경우)가 이 적용 예에 가장 적합하다. 따라서 이하는 반사형 편광수단(200)과 흡수형 편광수단(100) 각각의 투과축의 방향이 상호간에 일치하는 경우를 가지고 본건 적용예를 설명한다.When the present invention is applied in this way, the basic configuration described with reference to FIG. 1 is followed as is, and the case where the directions of the transmission axes of the reflective polarizing means (200) and the absorbing polarizing means (100) are mutually coincident (parallel or the angle formed between them is 0°) is most suitable for this application example. Therefore, the following describes the application example of this invention with the case where the directions of the transmission axes of the reflective polarizing means (200) and the absorbing polarizing means (100) are mutually coincident.
도 18은 건물의 외벽에 설치된 투명창(W)에 대하여 꽃모양의 도안을 가지는 반사형 편광필름(200)과 이와 평행하게 배치되고 그 투과축이 일치하는 흡수형 편광필름(100)이 설치된 것을 보인다. 이 경우는 흡수형 편광필름(100)의 면적의 내부에 반사형 편광필름(200)이 위치하고 있는 것이다.Figure 18 shows a reflective polarizing film (200) having a flower-shaped design and an absorptive polarizing film (100) arranged parallel to the reflective polarizing film and having their transmission axes coincident with each other, installed on a transparent window (W) installed on the exterior wall of a building. In this case, the reflective polarizing film (200) is positioned within the area of the absorptive polarizing film (100).
그러면 건물의 외부공간인 제2공간(S2)에서 보았을 때, 상기 꽃모양은 반사형 편광필름(200)으로 이루어진 것으로서 반사를 이루어 시인성이 뛰어나게 된다. 하지만 건물의 내부공간인 제1공간(S1)에서 상기 꽃모양의 반사형 편광필름(200)을 투과하여 제2공간(S2)을 보는 것, 즉 조망을 하는데 아무런 지장이 없다. 단지 상기 꽃모양의 윤곽을 이루는 형태선이 보일 뿐이다.Then, when viewed from the second space (S2), which is the external space of the building, the flower shape is made of a reflective polarizing film (200), so it reflects and has excellent visibility. However, there is no problem in viewing the second space (S2) from the first space (S1), which is the internal space of the building, by passing through the flower-shaped reflective polarizing film (200). Only the outline of the flower shape is visible.
이는 본 발명에서 반사형 편광필름(200)과 흡수형 편광필름(100)의 투과축이 일치하여, 만약 반사형 편광필름과 흡수형 편광필름의 효율이 이상적이고 내부 반사 등의 문제가 없다면, 반사형 편광필름(200)을 투과한 빛이 흡수형 편광필름(100)을 한번 더 투과하게 된다고 해서 광손실이 일어나게 되지 않고, 따라서 반사형 편광필름(200)과 흡수형 편광필름(100) 모두를 투과한 빛의 세기나 반사형 편광필름(200)과 흡수형 편광필름(100) 중 하나만을 통과한 빛의 세기가 차이가 없기 때문에 이와 같은 효과가 나타나게 되는 것이다. 내부반사가 있다고 하더라도 그 영향은 크지 않기 때문에 이와 같은 효과는 유지될 수 있다. This is because, in the present invention, the transmission axes of the reflective polarizing film (200) and the absorbent polarizing film (100) are aligned, so if the efficiency of the reflective polarizing film and the absorbent polarizing film is ideal and there are no problems such as internal reflection, light loss does not occur even if the light transmitted through the reflective polarizing film (200) transmits once more through the absorbent polarizing film (100), and therefore, there is no difference in the intensity of light transmitted through both the reflective polarizing film (200) and the absorbent polarizing film (100) or the intensity of light transmitted through only one of the reflective polarizing film (200) and the absorbent polarizing film (100), and thus this effect appears. Even if there is internal reflection, the effect is not significant, so this effect can be maintained.
도 19는 투명창(W)에 대하여 반사형 편광필름(200)이 설치되고 그 뒷면에 글자(LG)의 형상을 가지는 흡수형 편광필름(100)이 설치된 경우를 보인다. Figure 19 shows a case where a reflective polarizing film (200) is installed on a transparent window (W) and an absorptive polarizing film (100) having the shape of letters (LG) is installed on the back side thereof.
이 경우, 상기 반사형 편광필름(200)과 흡수형 편광필름(100)은 상호간에 평행하게 배치되고 이들의 투과축은 일치하며, 상기 반사형 편광필름(200)의 면적의 내부에 상기 흡수형 편광필름(100)이 위치하고 있다.In this case, the reflective polarizing film (200) and the absorbent polarizing film (100) are arranged parallel to each other, their transmission axes are coincident, and the absorbent polarizing film (100) is located within the area of the reflective polarizing film (200).
이 경우, 제1공간(S1)에서 보았을 때, 상기 반사형 편광필름(200)의 부분들 중에서 글자(LG)의 형태를 가지는 흡수형 편광필름(100)의 부분을 제외한 부분들은 반사를 이루면서 일종의 음각의 형태로 글자(LG)가 시인성을 가지고 보이게 될 것이다. In this case, when viewed from the first space (S1), the parts of the reflective polarizing film (200) except for the part of the absorbent polarizing film (100) having the shape of letters (LG) will be reflected, and the letters (LG) will be visible in a kind of negative shape.
한편으로 이러한 경우에도, 반사형 편광필름(200)과 글자(LG)의 형태를 가지는 흡수형 편광필름(100)이 겹치는 부분(즉 LG 글자부분)에서는 제1공간(S1)에서 제2공간(S2)을 보았을 때 조망에 방해가 발생하지 않는다.On the one hand, even in this case, in the part where the reflective polarizing film (200) and the absorbent polarizing film (100) in the shape of letters (LG) overlap (i.e., the LG letter part), the view is not obstructed when looking from the first space (S1) to the second space (S2).
또한, 이 경우에 제2공간(s2)에서 보았을 때 상기 반사형 편광필름 전체만이 보일 뿐 글자(LG)는 보이지 않게 된다.Also, in this case, when viewed from the second space (s2), only the entire reflective polarizing film is visible and the letters (LG) are not visible.
도 20은 투명창(W)에 대하여 각각이 타원형의 형상을 가지지만 상호간에 대각선으로 배치되는 반사형 편광필름(200)과 흡수형 편광필름(100)이 설치된 경우를 보인다.Figure 20 shows a case where a reflective polarizing film (200) and an absorptive polarizing film (100) each having an elliptical shape but arranged diagonally with respect to a transparent window (W) are installed.
제2공간(S2)에서 보았을 때 이들 반사형 편광필름(200)과 흡수형 편광필름(100)은 도 20의 (c)에서 보이는 바와 같이 배치되고 있는데, 도 20의 (a)에서는 사시도로서 보이는 것이다.When viewed from the second space (S2), these reflective polarizing films (200) and absorptive polarizing films (100) are arranged as shown in (c) of Fig. 20, which is shown as a perspective view in (a) of Fig. 20.
이 경우, 상기 반사형 편광필름(200)과 흡수형 편광필름(100)은 상호간에 평행하게 배치되고 이들의 투과축은 일치한다. In this case, the reflective polarizing film (200) and the absorptive polarizing film (100) are arranged parallel to each other and their transmission axes are coincident.
또한, 상기 반사형 편광필름(200)과 흡수형 편광필름(100)은 상호간에 부분들이 겹치는 것으로서, 각각의 부분이 상호간에 겹치도록 배치된 경우에 해당된다. 도 20의 (c)에서 빗금이 쳐진 도시부호 120이 각각의 것에서 겹쳐지는 부분을 나타내고, 도시부호 112는 겹쳐지지 않는 흡수형 편광필름(100)만의 영역을 나타내고, 도시부호 212는 겹쳐지지 않는 반사형 편광필름(200)만의 영역을 나타낸다.In addition, the reflective polarizing film (200) and the absorptive polarizing film (100) have overlapping portions, and this corresponds to a case where each portion is arranged to overlap with each other. In (c) of Fig. 20, the hatched symbol 120 indicates an overlapping portion in each, the symbol 112 indicates an area of only the absorptive polarizing film (100) that does not overlap, and the symbol 212 indicates an area of only the reflective polarizing film (200) that does not overlap.
반사형 편광필름(200)과 흡수형 편광필름(100)이 겹쳐져 있는 부분(120)에서는 반사형 편광필름(200) 부분이 제2공간(S2)측으로만 반사를 하고, 흡수형 편광필름(100)만이 설치된 부분(112)(112)에서는 제1공간(S1)과 제2공간(S2) 양측 모두 반사가 없으며, 반사형 편광필름(200)만이 설치된 부분(212)(212)에서는 제1공간(S1)과 제2공간(S2) 양측 모두로 반사가 되게 되며, 이에 따라서, 제1공간(S1)과 제2공간(S2) 양측 모든 방향으로 여러 가지 형태를 나타낼 수 있게 되는 것이다.In the portion (120) where the reflective polarizing film (200) and the absorbent polarizing film (100) overlap, the reflective polarizing film (200) portion reflects only toward the second space (S2), and in the portion (112) (112) where only the absorbent polarizing film (100) is installed, there is no reflection in both the first space (S1) and the second space (S2), and in the portion (212) (212) where only the reflective polarizing film (200) is installed, reflection occurs in both the first space (S1) and the second space (S2), and accordingly, various shapes can be expressed in all directions of both the first space (S1) and the second space (S2).
한편 이러한 와중에 제1공간(S1)에서 제2공간(S2)을 볼 때 반사형 편광필름(200)과 흡수형 편광필름(100)이 겹쳐져 있는 부분(120)은 조망을 방해하지 않으며, 흡수형 편광필름(100)만이 설치된 부분(112)(112)에서도 조망은 방해를 받지 않으며 단지 흡수축에 해당하는 빛의 흡수로 인하여 어두워질 수는 있을 것이다.Meanwhile, when looking at the second space (S2) from the first space (S1), the part (120) where the reflective polarizing film (200) and the absorbing polarizing film (100) overlap does not obstruct the view, and the part (112) (112) where only the absorbing polarizing film (100) is installed also does not obstruct the view, but it may become dark due to the absorption of light corresponding to the absorption axis.
따라서 본 발명은 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)은 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지도록 하며, 또한, 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분들이 상호간에 겹치도록 배치함으로써, 제1공간(S2)에서 제2공간(S2)을 바라볼 때, 그리고 제2공간(S2)에서 제1공간(S1)을 바라볼 때 그 형태와 반사가 다르게 나타나는 독특한 효과를 얻을 수 있게 되는 것이다.Accordingly, the present invention provides a unique effect in which the reflective polarizing means (200) and the absorptive polarizing means (100) have a specific shape for decoration, advertising, or information transmission, or in which one or both of them is positioned within the area of the other or the respective parts overlap each other, thereby producing a unique effect in which the shape and reflection appear differently when looking at the second space (S2) from the first space (S2), and when looking at the first space (S1) from the second space (S2).
한편 이러한 경우에서, 제2공간(S2)을 향하는 반사형 편광수단(200)은 빛의 반사로 제2공간(S2)에서 바라보았을 때 높은 시인성을 가지지만, 흡수형 편광수단(100)과 반사형 편광수단(200)이 겹치는 곳에서는 이를 통하여 제1공간(S1)에서 제2공간(S2)을 바라보는 조망에는 아무런 장애가 없다. 도 18을 예로 설명한 경우, 단지 반사형 편광수단(200)의 형태의 윤곽선만 보일 뿐이다.Meanwhile, in this case, the reflective polarizing means (200) facing the second space (S2) has high visibility when viewed from the second space (S2) due to the reflection of light, but in the place where the absorptive polarizing means (100) and the reflective polarizing means (200) overlap, there is no obstruction in the view from the first space (S1) to the second space (S2). In the case of FIG. 18 as an example, only the outline of the shape of the reflective polarizing means (200) is visible.
이에 더하여, 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)은 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지도록 하며, 또한, 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분들이 상호간에 겹치도록 배치하는 경우에, 제1공간(S1)과 제2공간(S2)의 조도가 역전하게되면 그 장식, 광고 또는 정보전달을 위한 특정한 형태가 사라지거나 변화하게 되는 효과도 더불어 나타나게 된다.In addition, the reflective polarizing means (200) and the absorptive polarizing means (100) are arranged so that one or both of them has a specific shape for decoration, advertising, or information transmission, and further, when one is positioned within the area of the other or the respective parts are arranged to overlap each other, when the illuminance of the first space (S1) and the second space (S2) are reversed, the specific shape for decoration, advertising, or information transmission disappears or changes, which also results in the appearance.
예를 들어 도18의 경우 상기 외부공간인 제2공간(S2)의 조도가 제1공간(S1)의 조도보다 높거나 또는 비슷하거나 한 경우에는 제2공간(S2)에서 보았을 때, 상기 반사형 편광필름(200)으로 이루어진 상기 꽃모양은 반사를 이루어 잘 보이게 된다.For example, in the case of Fig. 18, when the illuminance of the second space (S2), which is the external space, is higher than or similar to the illuminance of the first space (S1), the flower shape made of the reflective polarizing film (200) is reflected and becomes clearly visible when viewed from the second space (S2).
그러나 제2공간(S2)의 조도가 제1공간(S1)의 조도보다 아주 낮게 되면, 즉 제2공간(S2)이 외부공간이고, 제1공간(S1)이 내부의 공간이라고 할 때 밤이 되어 외부공간인 제2공간(S2)은 어두워지고 내부공간인 제1공간(S1)에서는 조명을 켜서 조도가 높아지게 되는 경우에는, 제2공간(S2)에서 볼 때에도 상기 반사형 편광필름(200)으로 이루어진 상기 꽃모양은 사라지게 되고 제2공간에서(S2) 제1공간(S1)이 잘 보이게 되며, 제1공간(S1)에서 제2공간(S2)을 볼 때 낮과 동일하게 상기 꽃모양은 보이지 않는다. However, when the illuminance of the second space (S2) becomes much lower than the illuminance of the first space (S1), that is, when the second space (S2) is an external space and the first space (S1) is an internal space, and it becomes night and the second space (S2), which is an external space, becomes dark and the light is turned on in the first space (S1), which is an internal space, to increase the illuminance, the flower shape formed by the reflective polarizing film (200) disappears even when viewed from the second space (S2), and the first space (S1) becomes clearly visible from the second space (S2), and when the second space (S2) is viewed from the first space (S1), the flower shape is not visible as during the day.
즉, 예를 들어 낮과 밤이 바뀜에 따라, 제1공간(S1)과 제2공간(S2)의 조도가 역전되면, 장식, 광고 또는 정보전달을 위한 특정한 형태가 사라지거나 변화하게 되어 조도가 역전되기 전과 후에 서로 다르게 보이게 되는 효과를 얻을 수가 있는 것이다. That is, for example, when the illumination levels of the first space (S1) and the second space (S2) are reversed as day and night change, a specific shape for decoration, advertisement, or information delivery disappears or changes, resulting in an effect in which the shapes appear different before and after the illumination levels are reversed.
한편 도 18에서 도 20에서는 유리창(W)의 후면에 순차적으로 반사형 편광필름(200)과 흡수형 편광필름(100)이 부착되는 경우를 예시하였지만 반드시 그러한 것은 아니고 도 4에서 도 7을 참고로 설명한 것과 같이 다양한 방식으로 배치될 수 있는 것이다.Meanwhile, in FIGS. 18 to 20, a case is exemplified where a reflective polarizing film (200) and an absorptive polarizing film (100) are sequentially attached to the back of a glass window (W), but this is not necessarily the case and can be arranged in various ways as explained with reference to FIGS. 4 to 7.
본 발명에 따를 경우, 도 21을 참고로, 상기 흡수형 편광수단(100)이 상기 제1공간(S1)을 향하는 쪽(101)에 상기 흡수평 편광수단(100)과 평행한 평면에 배치되는 색상필름(4)을 더욱 포함 할 수 있는데, 예를 들어, 상기 색상필름(4)은 상기 흡수형 편광수단(100)에 부착되거나(도 21 (a)) 또는 상기 흡수형 편광수단(100)과 평행한 면에 설치(도 21 (b))될 수 있다.According to the present invention, with reference to FIG. 21, the absorption-type polarizing means (100) may further include a color film (4) arranged on a plane parallel to the absorption-type polarizing means (100) on the side (101) facing the first space (S1). For example, the color film (4) may be attached to the absorption-type polarizing means (100) (FIG. 21 (a)) or installed on a plane parallel to the absorption-type polarizing means (100) (FIG. 21 (b)).
상기 색상필름(4)은 상기 제2공간(S2)으로부터 제1공간(S1)으로 인입되는 빛과 제1공간(S1)에서 제2공간(S2)으로 방출되는 빛의 투과율을 조절할 수 있게 해준다.The above color film (4) allows for controlling the transmittance of light introduced from the second space (S2) to the first space (S1) and light emitted from the first space (S1) to the second space (S2).
상기 반사형 편광필름(200) 또는 흡수형 편광필름(100)은 그 특성상 그 반사율, 흡수율 또는 투과율을 필요에 따라 마음대로 조절하기 매우 어려우며 특정 색상을 띄고 있지 않다.The above-mentioned reflective polarizing film (200) or absorptive polarizing film (100) is very difficult to control its reflectivity, absorptivity or transmittance as needed due to its characteristics, and does not have a specific color.
따라서 제1공간(S1)에서 제2공간(S2)으로 나가는 빛 또는 제2공간(S2)에서 제1공간(S1)으로 투과되는 빛을 더 줄이거나 이 빛들에 특정 색상을 입히고자 한다면 위와 같이 색상필름(4)을 상기 흡수형 편광필름(100)의 제1공간(S1)을 향하는 면측에 설치하는 방법으로 투과되는 빛의 양이나 색상을 조절할 수 있는 것이다.Therefore, if it is desired to further reduce the light going from the first space (S1) to the second space (S2) or the light transmitted from the second space (S2) to the first space (S1) or to give these lights a specific color, the amount or color of the transmitted light can be controlled by installing the color film (4) on the surface of the absorbent polarizing film (100) facing the first space (S1) as described above.
한편, 도 13과 도 14를 참고로 설명한 본 발명에 따를 경우, 상기 흡수형 편광필름(100)은 제1공간(S1)측에서 반사광을 없애 반사광으로 인하여 조망이 방해받는 것을 없애주는 역할만을 한다.Meanwhile, according to the present invention described with reference to FIGS. 13 and 14, the absorptive polarizing film (100) only plays a role in eliminating the reflection light from the first space (S1) side and thus eliminating the obstruction of the view due to the reflection light.
따라서 만약 조사실(S2)의 조명이 강하여 조도가 높고, 관찰실(S1)에는 조명이 없거나 약하여 조도가 낮은 경우에는, 흡수형 편광필름(100)을 설치하지 아니하고 반사형 편광필름(200)만을 설치하여도 될 것이다.Therefore, if the lighting in the investigation room (S2) is strong and the illuminance is high, and the lighting in the observation room (S1) is weak or absent and the illuminance is low, it may be sufficient to install only the reflective polarizing film (200) without installing the absorptive polarizing film (100).
이러한 경우가 도 15와 도 16에서 보인다. 즉 도 13과 도 14와 비교하여 흡수형 편광필름(100)만이 설치되지 않고 있는 것이다.This case is shown in Figs. 15 and 16. That is, compared to Figs. 13 and 14, only the absorbent polarizing film (100) is not installed.
도 15를 참고로, 조사실(S2)에는 조명(6)이 설치되고 있으며, 제1공간(S1)과 제2공간(S2)의 사이에 투명유리(W)가 설치되고 이 투명유리(W)에 반사형 편광필름(200)이 설치된다.Referring to Fig. 15, lighting (6) is installed in the investigation room (S2), transparent glass (W) is installed between the first space (S1) and the second space (S2), and a reflective polarizing film (200) is installed on this transparent glass (W).
이러한 구성으로 관찰실(S1)에서 조사실(S2)을 보면 흡수형 편광필름(100)이 제공되는 경우와 비교하여 제1공간(S1)에서 출발한 빛으로 인한 반사형 편광필름(200)에서의 반사가 존재하여 그 만큼 조망이 방해를 받지만 관찰실(S1)의 조도가 충분히 낮다면 관찰실(S1)에서 조사실(S2)을 관찰할 수 있게 된다. 또한 조사실(S2)에서 관찰실(S1)을 보았을 때, 조명(6)이 충분히 강하다면, 조명(6)의 빛으로 인한 반사형 편광필름(200)에서의 반사광으로 인하여 시선이 차단될 것이다.With this configuration, when looking at the investigation room (S2) from the observation room (S1), compared to when an absorptive polarizing film (100) is provided, there is reflection from the reflective polarizing film (200) due to light originating from the first space (S1), which obstructs the view to that extent. However, if the illumination of the observation room (S1) is sufficiently low, the investigation room (S2) can be observed from the observation room (S1). In addition, when looking at the observation room (S1) from the investigation room (S2), if the illumination (6) is sufficiently strong, the line of sight will be blocked due to the reflection of the light from the reflective polarizing film (200) due to the light of the illumination (6).
따라서 관찰실(S1)의 관찰자(3a)는 조사실(S2)의 피조사자(3c)를 볼 수 있지만, 조사실(S2)의 피조사자(3c)는 관찰실(S1)의 관찰자(3a)를 볼 수 없게 된다.Accordingly, the observer (3a) in the observation room (S1) can see the subject (3c) in the investigation room (S2), but the subject (3c) in the investigation room (S2) cannot see the observer (3a) in the observation room (S1).
이 경우, 상기 제2공간인 조사실(S2)의 조사관(3b)의 눈에 대하여 조사용 편광수단(800)이 설치된다.In this case, a polarizing means (800) for investigation is installed for the eyes of the investigator (3b) in the investigation room (S2), which is the second space.
상기 조사관(3b)은 안경형태의 프레임(8)을 착용하고 있을 수 있는데, 상기 안경형태의 프레임(8)에 상기 조사용 편광수단(800)이 설치될 수 있다. 이것은 예를 들어 편광선글라스이다.The above investigator (3b) may be wearing a frame (8) in the form of glasses, and the polarizing means (800) for investigation may be installed in the frame (8) in the form of glasses. This is, for example, polarized sunglasses.
본 발명에 따를 경우, 상기 조사용 편광수단(800)의 투과축(800c)의 방향은 상기 반사형 편광필름(200)의 투과축(200c)의 방향과 평행을 이룬다. 따라서 상기 반사형 편광수단(200)의 반사축의 방향과는 수직을 이루고, 제2공간인 조사실(S2)의 조명(6)으로부터 출발하여 반사형 편광필름(200)에서 반사되어 상기 조사용 편광수단(800)으로 입사되는 반사광(612)은 상기 조사용 편광수단(800)을 투과하지 못하고, 제1공간인 관찰실(S1) 내부에서 출발하여 반사형 편광필름(200)을 투과하여 제2공간인 조사실(S2)로 인입된 빛(10")은 그 편광방향이 상기 조사용 편광수단(800)의 투과축(800c)과 일치하게 된다.According to the present invention, the direction of the transmission axis (800c) of the polarizing means (800) for investigation is parallel to the direction of the transmission axis (200c) of the reflective polarizing film (200). Therefore, it is perpendicular to the direction of the reflection axis of the reflective polarizing means (200), and the reflected light (612) that originates from the light (6) of the investigation room (S2), which is the second space, is reflected by the reflective polarizing film (200), and is incident on the polarizing means (800) for investigation does not transmit the polarizing means (800), and the light (10") that originates from inside the observation room (S1), which is the first space, and transmits the reflective polarizing film (200) and enters the investigation room (S2), which is the second space, has its polarization direction coincident with the transmission axis (800c) of the polarizing means (800) for investigation.
도 15의 (b)의 200c는 반사형 편광필름(200)의 투과축의 방향을 보인다. 200c of (b) of Fig. 15 shows the direction of the transmission axis of the reflective polarizing film (200).
따라서 조사관(3b)은 조명(6)의 반사광(612)의 방해를 받지 않으면서 제1공간인 관찰실(S1) 내부를 볼 수 있게 되는 것이고 관찰자(3a)자의 수신호를 보거나 관찰실(S1)에 설치된 디스플레이 수단이 보이는 디스플레이를 볼 수 있어 조사에 도움이 된다.Accordingly, the investigator (3b) can view the inside of the first space, the observation room (S1), without being obstructed by the reflected light (612) of the light (6), and can view the hand signal of the observer (3a) or the display of the display means installed in the observation room (S1), which is helpful for the investigation.
도 16을 참고로, 도 15와 같이, 조사실(S2)에는 조명(6)이 설치되고 있으며, 제1공간(S1)과 제2공간(S2)의 사이에 투명유리(W)가 설치되고 이 투명유리(W)에 반사형 편광필름(200)이 설치된다.Referring to Fig. 16, as in Fig. 15, lighting (6) is installed in the investigation room (S2), transparent glass (W) is installed between the first space (S1) and the second space (S2), and a reflective polarizing film (200) is installed on this transparent glass (W).
상기 조사실(S2)의 조명(6)과 상기 반사형 편광필름(200)의 사이에는 상기 조사실(S2)의 조명(6)으로부터 상기 반사형 편광필름(200)으로 방출되는 직사광선을 가리도록 조명용 편광수단(600)이 설치된다.Between the light (6) of the above investigation room (S2) and the reflective polarizing film (200), a polarizing means (600) for illumination is installed to block direct sunlight emitted from the light (6) of the above investigation room (S2) to the reflective polarizing film (200).
상기 조명(6)의 빛(610)은 조명용 편광수단(600)을 투과하여 빛(610')가 되어 반사형 편광필름(200)으로 직접 입사가 된다.The light (610) of the above lighting (6) passes through the lighting polarizing means (600) to become light (610') and is directly incident on the reflective polarizing film (200).
이 경우, 상기 조명용 편광수단(600)은 상기 반사형 편광수단(200)의 반사축(200d)의 방향이 상기 조명(6)에서 상기 반사형 편광수단(200)을 향하여 조사되는 빛(610)의 경로를 역으로 따른 역경로(-610')를 따라 상기 조명용 편광수단(600)을 향하여 투영(사영)된 반사축(200d')의 방향과 일치하는 투과축을 가진다. (도 17 참고)In this case, the polarizing means (600) for lighting has a transmission axis that coincides with the direction of the reflection axis (200d) of the reflective polarizing means (200) that is projected (projected) toward the polarizing means (600) for lighting along a reverse path (-610') that follows the reverse path of the path of the light (610) irradiated toward the reflective polarizing means (200) from the light (6). (See Fig. 17)
이에 따라서, 상기 조명(6)에서 출발하여 상기 조명용 편광수단(600)을 투과한 빛(610')의 편광방향은 상기 빛(610')이 반사형 편광필름(200)에 닿았을 때 반사형 편광필름(200)의 반사축의 방향(200d)과 일치하게 되며, 상기 반사형 편광필름(200)을 투과하지 못하고 반사만을 일으킨다.Accordingly, the polarization direction of light (610') transmitted from the above lighting (6) and through the above lighting polarizing means (600) coincides with the direction (200d) of the reflection axis of the reflective polarizing film (200) when the light (610') reaches the reflective polarizing film (200), and only causes reflection without transmitting through the reflective polarizing film (200).
이에 따라서, 조사실(S2)의 조명(6)에서 나와 직접 관찰실(S1)로 가는 직사광선은 관찰실(S1)로 투과되지 못하게 되어 관찰실(S1)의 관찰자(3a)는 조명(6)의 직사광선으로 인한 눈부심으로 인하여 방해를 받지 않고 조사실(S2)을 볼 수 있게 되고, 피조사자(3c)를 더욱 잘 관찰할 수 있게 되는 것이다.Accordingly, direct sunlight from the light (6) of the investigation room (S2) to the observation room (S1) is prevented from penetrating into the observation room (S1), so that the observer (3a) of the observation room (S1) can view the investigation room (S2) without being disturbed by glare from the direct sunlight of the light (6), and can better observe the subject (3c).
도 22는 본 발명의 두 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(2000)의 구조를 보이는 도면이다.FIG. 22 is a drawing showing the structure of a polarization system (2000) having different reflectivities toward both spaces according to the second aspect of the present invention.
본 발명의 두 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(2000)은 각각 서로 평행한 평면에 놓이는 반반사수단(400)과 원편광수단(300)을 포함한다.A polarization system (2000) having different reflectivities toward both spaces according to a second aspect of the present invention includes a semi-reflective means (400) and a circular polarization means (300) which are placed on planes parallel to each other.
도 22의 (a)는 제2공간(S2)으로부터 빛이 상기 반반사수단(400)으로 입사되어 이를 투과하여 상기 원편광수단(300)으로 입사되고 이를 투과하여 제1공간(S1)에 이르는 경우를 보이며, 도 22의 (b)는 도 22의 (a)의 빛이 지나는 동일한 광경로에 대하여 제1공간(S1)으로부터 빛이 상기 원편광수단(300)으로 입사되어 이를 투과하여 상기 반반사수단(400)으로 입사되고 이를 투과하여 제2공간(S2)에 이르는 경우를 보인다.Figure 22 (a) shows a case where light from a second space (S2) is incident on the semi-reflective means (400), passes through it, is incident on the circularly polarized means (300), passes through it, and reaches the first space (S1), and Figure 22 (b) shows a case where light from a first space (S1) is incident on the circularly polarized means (300), passes through it, is incident on the semi-reflective means (400), passes through it, and reaches the second space (S2) along the same optical path as the light in Figure 22 (a).
도 23을 참고로, 상기 원편광수단(300)이 놓이는 평면인 제1평면(300p)과 상기 반반사필름(400)이 놓이는 평면인 제2평면(400p)은 상호간에 평행하다.Referring to Figure 23, the first plane (300p), which is the plane on which the circular polarizing means (300) is placed, and the second plane (400p), which is the plane on which the semi-reflective film (400) is placed, are parallel to each other.
본 발명에 따를 경우, 도 22와 같이 상기 원편광수단(300)과 상기 반반사수단(400)과 상기 원편광수단(300)이 각각 위치한 쪽으로 각각 제1공간(S1)과 제2공간(S2)이 위치하게 된다. 즉 상기 반반사수단(400)은 제2공간(S2)을 향한 쪽에 배치되고, 상기 원편광수단(300)은 제1공간(S1)을 향한 쪽에 배치된다.According to the present invention, as shown in Fig. 22, the first space (S1) and the second space (S2) are positioned in the direction in which the circular polarization means (300), the semi-reflective means (400), and the circular polarization means (300) are respectively positioned. That is, the semi-reflective means (400) is positioned on the side facing the second space (S2), and the circular polarization means (300) is positioned on the side facing the first space (S1).
이 경우, 이들 원편광수단(300)과 반반사수단(400)이 각각 제1공간(S1)을 향한 쪽에 배치되고, 제2공간(S2)을 향한 쪽에 배치가 되는 것은 상호간에 상대적으로 그렇게 배치가 이루어진다는 것이다. In this case, the circular polarization means (300) and the semi-reflective means (400) are arranged on the side facing the first space (S1) and the side facing the second space (S2), respectively, which means that they are arranged relatively to each other.
예를 들어, 도 25에서 도 27을 참고로, 예를 들어, 제1공간(S1)과 제2공간(S2)의 경계에 투명창(W)이 설치되는데, 이 투명창(W)에 대하여 다양한 위치에 원편광수단(300)과 반반사수단(400)이 설치되고 있다.For example, referring to FIG. 25 to FIG. 27, for example, a transparent window (W) is installed at the boundary between the first space (S1) and the second space (S2), and a circular polarizing means (300) and a semi-reflective means (400) are installed at various locations with respect to the transparent window (W).
이들의 경우, 구체적으로 각각의 경우에 원편광수단(300)과 반반사수단(400)이 배치되는 위치는 서로 다르지만, 반반사수단(400)은 원편광수단(300)보다 상대적으로 제2공간(S2)을 향한 쪽에 배치가 되고, 원편광수단(300)은 반반사수단(400)보다 상대적으로 제1공간(S1)을 향한 쪽에 배치가 되고 있는 것이다.In these cases, specifically, the positions where the circular polarization means (300) and the semi-reflective means (400) are arranged in each case are different, but the semi-reflective means (400) is arranged relatively toward the second space (S2) compared to the circular polarization means (300), and the circular polarization means (300) is arranged relatively toward the first space (S1) compared to the semi-reflective means (400).
본 발명에 따를 경우, 상기 제1공간(S1)은 상기 제2공간(S2)에 머무는 자가 상기 반반사수단(400)과 상기 원편광수단(300)을 통하여 바라보는 대상이다. According to the present invention, the first space (S1) is an object viewed by a person staying in the second space (S2) through the semi-reflective means (400) and the circular polarizing means (300).
또한, 상기 제2공간(S2)은 상기 제1공간(S1)에 머무는 자가 상기 원편광수단(300)과 상기 반반사수단(400)을 통하여 바라보는 대상이다. In addition, the second space (S2) is an object viewed by a person staying in the first space (S1) through the circular polarization means (300) and the semi-reflective means (400).
바라보는 대상이라는 것은, 본 발명의 첫 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)에서 설명한 바와 같이, 말 그대로 바라보는 것을 의미하며 반드시 보이게 되는 것을 내포하지는 않는다.The term "object of view" literally means something to be viewed, as described in the polarization system (1000) having different reflectivities toward both spaces according to the first aspect of the present invention, and does not necessarily imply something to be seen.
또한, 상기 제1공간(S1) 또는 제2공간(S1)에 머무는 자는 반드시 실제 그 공간에 머무는 사람을 의미하지는 않으며 바라볼 수 있는 수단이 위치할 수 있는 것을 의미한다. 또한 상기 제1공간(S1) 또는 제2공간(S2)에 머무는 자는 사람임이 보통이지만 사람이 아닌 CCTV등 사진이나 동영상을 찍는 장치가 될 수 있다. 이들은 도 1을 참고로 설명한 경우와 동일하다.Additionally, the person staying in the first space (S1) or second space (S2) does not necessarily mean a person actually staying in that space, but rather means that a means of viewing can be located. Furthermore, the person staying in the first space (S1) or second space (S2) is usually a person, but may also be a device that takes pictures or videos, such as a CCTV. These are the same as the cases described with reference to FIG. 1.
반반사수단(400)은 입사되는 빛 중 일부는 투과하고 일부는 반사하는 것을 말하는데 보통 플라스틱 계열의 베이스 필름에 알루미늄 등의 금속을 증착하여 입사되는 빛 중 일부는 투과시키고 일부는 반사시키는 반반사층을 구성하도록 하여 만들어진다.The semi-reflective means (400) refers to a method of transmitting some of the incident light and reflecting some of it. It is usually made by depositing a metal such as aluminum on a plastic base film to form a semi-reflective layer that transmits some of the incident light and reflects some of it.
원편광수단(300)은 입사되는 빛이 이를 통과하면서 원편광이 되어 나가는 것으로서, 통상적으로 편광필름에 1/4파장을 위상지연시키는 위상지연필름과 같은 위상지연 수단이 부착되어 구성된다.The circular polarizing means (300) is configured such that incident light becomes circularly polarized as it passes through it, and is typically configured by attaching a phase retardation means such as a phase retardation film that retards the phase by 1/4 wavelength to a polarizing film.
도 22의 (b)는 상기 원편광수단(300)과 관련되어, 편광필름(310)에 위상지연수단(330)이 부착된 원편광수단(300)을 보이는데, 본 발명에 따를 경우, 상기 원편광수단(300)의 위상지연수단(330)은 상기 반반사수단(400) 쪽을 향하여 배치되어 제1공간(S1) 측에서 제2공간(S2) 측으로 빛이 진행하는 경우에 제1공간에서 출발하여 상기 원편광수단(300)을 통과한 빛은 원편광이 되어 상기 반반사수단(400)으로 입사된다.FIG. 22 (b) shows a circular polarizing means (300) in which a phase delay means (330) is attached to a polarizing film (310) in relation to the circular polarizing means (300). According to the present invention, the phase delay means (330) of the circular polarizing means (300) is arranged toward the semi-reflective means (400), so that when light travels from the first space (S1) to the second space (S2), light that starts from the first space and passes through the circular polarizing means (300) becomes circularly polarized and is incident on the semi-reflective means (400).
본 발명에서 상기 반반사수단(400)과 원편광수단(300)은 주로 필름의 형태가 사용될 것이지만, 시트 또는 판(plate)형태의 것을 배제하는 것은 아니다. In the present invention, the semi-reflective means (400) and the circular polarizing means (300) will mainly be used in the form of a film, but a sheet or plate form is not excluded.
필름과 시트 또는 판은 그 두께의 정도에 따른 상대적 개념으로서 필름이 제일 얇고 다음으로 시트 그리고 판의 순서로 두께가 증가하게 되며, 하나의 기준은 필름은 두께가 0.25mm 이하인 것, 시트는 0.25mm부터 1mm이하를 말하고 그 이상의 두께는 판 형태로 나누는 것이다.Film and sheet or plate are relative concepts based on their thickness, with film being the thinnest, followed by sheet and then plate in that order. One standard is that film is 0.25 mm or less in thickness, sheet is 0.25 mm to 1 mm or less, and anything thicker is classified as plate.
이하에서 이들 반반사수단(400)과 원편광수단(300)은 각각 반반사필름과 원편광필름으로 예시를 들어 설명을 한다.Below, these semi-reflective means (400) and circular polarizing means (300) are explained using examples such as a semi-reflective film and a circular polarizing film, respectively.
도 24의 (a)에서 보이는 바와 같이, 반반사필름(400)은 보호층(410)에 금속증착층(420)이 형성되고 상기 금속증착층(420)에 다시 보호층(430)이 부착되는 구조를 가질 수 있다.As shown in (a) of Fig. 24, the semi-reflective film (400) may have a structure in which a metal deposition layer (420) is formed on a protective layer (410) and a protective layer (430) is attached again to the metal deposition layer (420).
이러한 경우, 상기 원편광필름(300)을 향하는 보호층(430)은 복굴절성이 없어야 한다. 그래야만 상기 원편광필름(300)을 통과하여 원편광이 된 빛이 상기 반반사필름(400)에서 반사될 때 그 원편광의 방향이 반대로 될 수 있기 때문이다.In this case, the protective layer (430) facing the circularly polarizing film (300) must not have birefringence. This is because only then can the direction of circularly polarized light that passes through the circularly polarizing film (300) be reversed when reflected by the semi-reflective film (400).
따라서 상기 보호층(430)은 트리아세틸셀룰로오스(Tri-Acetyl cellulose, TAC) 재질의 필름과 같이 복굴절성이 없는 재질로 만들어져야 한다.Therefore, the above protective layer (430) must be made of a material that does not have birefringence, such as a film made of triacetyl cellulose (TAC).
한편으로, 상기 반반사필름(400)은 도 24의 (b)에서 보이는 바와 같이 보호층(410)에 금속증착층(420)만이 형성된 것이 사용될 수 있으며, 이러한 경우에 보호층이 없는 방향으로 원편광필름(300)을 위치시키면 상기 원편광필름(300)을 통과하여 원편광이 된 빛이 상기 반반사필름(400)에서 반사될 때 그 원편광의 방향이 반대로 될 수 있어 문제가 없다.On the other hand, the semi-reflective film (400) may be used in which only the metal deposition layer (420) is formed on the protective layer (410) as shown in (b) of Fig. 24, and in this case, if the circularly polarizing film (300) is positioned in the direction where there is no protective layer, the direction of the circularly polarized light passing through the circularly polarizing film (300) may be reversed when reflected from the semi-reflective film (400), so there is no problem.
이와 같이, 상기 반반사필름(400)은 상기 원편광필름(300)을 향한 쪽의 면(403)은 복굴절성이 없어, 상기 원편광필름(300)을 통과하여 원편광이 된 빛이 반반사필름(400)에 입사되어 반사될 때 그 원편광방향이 반대로 되게 된다.In this way, the surface (403) of the semi-reflective film (400) facing the circularly polarizing film (300) has no birefringence, so that when light that has passed through the circularly polarizing film (300) becomes circularly polarized and is reflected by the semi-reflective film (400), the direction of circular polarization becomes reversed.
도 22의 (a)를 참고로, 제2공간(S2)으로부터 상기 반반사필름(400)으로 인입되는 빛(40)의 일부는 상기 반반사필름(400)을 투과하고, 일부는 반사된다. 이렇게 반반사필름(400)을 투과한 빛이 도시부호 40'로 표시되고 반사된 빛은 도시부호 40'''로 표시된다.Referring to (a) of Fig. 22, a portion of the light (40) entering the semi-reflective film (400) from the second space (S2) passes through the semi-reflective film (400), and a portion is reflected. The light passing through the semi-reflective film (400) is indicated by the symbol 40', and the reflected light is indicated by the symbol 40'''.
이후 상기 반반사필름(400)을 투과한 빛(40')은 상기 원편광필름(300)을 투과하여 제1공간(S1)으로 인입되고 이렇게 인입된 빛이 도시부호 40"로 표시된다.Afterwards, the light (40') that has passed through the semi-reflective film (400) passes through the circular polarizing film (300) and enters the first space (S1), and the light thus entered is indicated by the symbol 40".
도 22의 (b)를 참고로, 제1공간(S1)으로부터 상기 원편광필름(300)으로 입사되는 무편광의 빛(30)은 상기 원편광필름(300)을 통과하면서 원편광이 되고 이렇게 원편광이 된 빛이 도시부호 30'로 표시된다.Referring to (b) of Fig. 22, unpolarized light (30) incident on the circularly polarized film (300) from the first space (S1) becomes circularly polarized as it passes through the circularly polarized film (300), and the circularly polarized light is indicated by the symbol 30'.
이후 이 빛(30')은 상기 반반사필름(400)을 만나게 되는데, 그러면 일부는 상기 반반사필름(400)을 투과하여 제2공간(S2)으로 인입하여 빛(30''')이 되고, 일부는 반사되어 그 원편광의 방향이 반대로 된다. Afterwards, this light (30') encounters the semi-reflective film (400), and then some of it passes through the semi-reflective film (400) and enters the second space (S2) to become light (30'''), and some of it is reflected and the direction of its circular polarization becomes reversed.
이렇게 상기 반반사필름(400)에서 반사되어 그 원편광의 방향이 반대로 된 빛이 도시부호 30"로 표시되는데, 이 빛(30")은 상기 원평광필름(300)으로 다시 입사되지만 상기 원편광필름(300)의 원편광의 방향과는 반대의 방향을 가져서 이를 투과하지 못한다. In this way, light reflected from the semi-reflective film (400) and having its circular polarization direction reversed is indicated by symbol 30". This light (30") is re-injected into the circular polarizing film (300), but has a direction opposite to the direction of circular polarization of the circular polarizing film (300), and thus cannot be transmitted.
이와 같이 되어 제2공간(S2)로부터 제1공간(S1)을 향하여 입사되는 빛(40)은 일부는 상기 반반사필름(400)과 상기 원편광필름(300)을 차례로 투과하여 제1공간(S1)으로 인입되고 일부는 반반사필름(400)에서 반사된다.In this way, some of the light (40) incident from the second space (S2) toward the first space (S1) passes through the semi-reflective film (400) and the circular polarizing film (300) in sequence and enters the first space (S1), and some is reflected by the semi-reflective film (400).
상기 제1공간(S1)으로부터 제2공간(S2)을 향하여 입사되는 빛(30)은 상기 원편광필름(300)을 통과한 후 상기 반반사필름(400)을 통과하여 제1공간(S1)으로 인입되고, 일부는 상기 반반사필름(400)에서 반사된 후 상기 원편광필름(300)을 다시 통과하지 못한다.Light (30) incident from the first space (S1) toward the second space (S2) passes through the circular polarizing film (300) and then the semi-reflective film (400) to enter the first space (S1), and some of it is reflected by the semi-reflective film (400) and does not pass through the circular polarizing film (300) again.
즉 상기 제1공간(S1)으로부터 제2공간(S2)으로 향하여 입사되는 빛(30)은 일부 표면반사를 제외하고는 반사가 없게 된다.That is, light (30) incident from the first space (S1) to the second space (S2) is not reflected except for some surface reflection.
이와 같이, 상기 제1공간(S1)에서 상기 원편광수단(300)과 상기 반반사수단(300)을 향하여 출발하였다가 이들 원편광수단(300)과 반반사수단(400)에서 상기 제1공간(S1)으로 반사되는 빛에 대한 반사율인 제1반사율과 상기 제2공간(S2)에서 상기 반반사수단(400)과 상기 원편광수단(300)을 향하여 출발하였다가 이들 반반사수단(400)과 원편광수단(300)에서 상기 제2공간(S2)으로 반사되는 빛에 대한 반사율인 제2반사율은 서로 다르게 된다. 즉 제2반사율이 제1반사율보다 월등히 높게 된다.In this way, the first reflectivity, which is the reflectivity of light that departs from the first space (S1) toward the circular polarization means (300) and the semi-reflective means (300) and is reflected from these circular polarization means (300) and semi-reflective means (400) to the first space (S1), and the second reflectivity, which is the reflectivity of light that departs from the second space (S2) toward the semi-reflective means (400) and the circular polarization means (300) and is reflected from these semi-reflective means (400) and the circular polarization means (300) to the second space (S2), are different from each other. That is, the second reflectivity is significantly higher than the first reflectivity.
이와 같은 반사율의 차이로 인하여 상기 제2공간(S2)에서 상기 제1공간(S1)을 보았을 때 높은 반사율로 인한 강한 반사광으로 상기 제1공간(S1)이 보이는 정도가 악화되는 시선차단의 효과가 나타나고, 상기 제1공간(S1)에서 상기 제2공간(S2)을 보았을 때 상기 제2공간(S2)이 보이는 조망은 낮은 반사율로 인하여 반사광으로 인한 방해(조망방해)가 발생하지 않는다.Due to this difference in reflectivity, when the first space (S1) is viewed from the second space (S2), the view of the first space (S1) is impaired due to strong reflection caused by high reflectivity, resulting in a view blocking effect. When the second space (S2) is viewed from the first space (S1), the view of the second space (S2) is not obstructed (view obstructed) by reflection caused by low reflectivity.
제2공간(S2)에서 제1공간(S1)을 보게 되면, 반반사필름(400)에서의 반사광(40''')으로 인하여 제1공간(S1)으로부터 제2공간(S2)으로 인입되는 빛(30")이 잘 보이지 않게 되는 반면, 제1공간(S1)에서 제2공간(S2)을 보게 되면, 원편광수단(300)과 반반사필름(400)에서의 반사는 표면반사를 제외하고는 없거나 미미하여 제2공간(S2)으로부터 제1공간(S1)으로 인입되는 빛(40")이 잘 보이게 되는 것이다.When looking at the first space (S1) from the second space (S2), the light (30") introduced from the first space (S1) to the second space (S2) is not clearly visible due to the reflected light (40''') from the semi-reflective film (400), whereas when looking at the second space (S2) from the first space (S1), the reflection from the circular polarizing means (300) and the semi-reflective film (400) is absent or minimal except for surface reflection, so the light (40") introduced from the second space (S2) to the first space (S1) is clearly visible.
이와 같이 본 발명은 각각의 공간에 머무는 자에게 상호간에 바라봄의 대상이 되는 제1공간(S1)과 제2공간(S2)에 대하여 각각의 공간을 향하여 반사되는 반사광의 반사율을 다르게 할 수 있게 되는 것이다. In this way, the present invention enables the reflectivity of the reflected light reflected toward each space to be different for the first space (S1) and the second space (S2), which are objects of mutual observation for those staying in each space.
그리고 이렇게 양쪽의 공간을 향한 반사율을 다르게 함에 따라서 제2공간(S2)으로부터 제1공간(S1)을 보았을 때는 시선차단이 이루어지고, 반대로 제1공간(S1)에서 제2공간(S2)을 보았을 때는 반사광으로 인한 조망방해가 발생하지 않는 효과를 얻게 되는 것이다.And by making the reflectivity toward the two spaces different in this way, when looking at the first space (S1) from the second space (S2), the line of sight is blocked, and conversely, when looking at the second space (S2) from the first space (S1), the effect of not causing the view to be obstructed due to reflected light is obtained.
본 발명에 따를 경우, 상기 제1공간(S1)과 제2공간(S2)의 경계에는 빛이 투과하는 수단이 위치하고, 상기 반반사필름(400)과 상기 원편광필름(300)은 상기 빛이 투과하는 수단에 배치될 수 있다.According to the present invention, a means for transmitting light is positioned at the boundary between the first space (S1) and the second space (S2), and the semi-reflective film (400) and the circular polarizing film (300) can be placed on the means for transmitting light.
상기 빛이 투과하는 수단은 투명한 유리와 같은 빛이 투과하는 매질이고 적어도 그 표면 중 한 면이 평면인 것이 될 수 있다. The means through which the light transmits may be a medium through which light transmits, such as transparent glass, and at least one of its surfaces may be flat.
또한, 상기 반반사필름(400)과 상기 원편광필름(300)은 상기 빛이 투과하는 매질에 평행하게 배치되는 것이 바람직하다.In addition, it is preferable that the semi-reflective film (400) and the circular polarizing film (300) are arranged parallel to the medium through which the light passes.
예를 들어서, 도 3에서와 같이 건물(9)이 제공되고, 상기 건물(9)의 외벽에 투명창(W)이 설치가 되는 경우, 건물내부의 공간이 제1공간(S1)이 되고 건물외부의 공간이 제2공간(S2)이 되며 상기 투명창(W)이 이들 제1공간(S1)과 제2공간(S2)의 경계에 위치한 빛이 투과되는 매질이 될 것이고, 본 발명에 따른 양쪽의 공간을 향한 반사율이 서로 다른 편광시스템(2000)의 반반사필름(400)과 상기 원편광필름(300)은 상기 투명창(W)에 평행하게 배치가 되는 것이다.For example, if a building (9) is provided as in FIG. 3 and a transparent window (W) is installed on the outer wall of the building (9), the space inside the building becomes a first space (S1) and the space outside the building becomes a second space (S2), and the transparent window (W) becomes a medium through which light is transmitted at the boundary between the first space (S1) and the second space (S2), and the semi-reflective film (400) of the polarizing system (2000) according to the present invention, which have different reflectivities toward the two spaces, and the circular polarizing film (300) are arranged parallel to the transparent window (W).
본 발명에 따를 경우, 제1공간(S1)과 제2공간(S2)의 경계에 위치하는 빛이 투과하는 수단은 전술한 투명창(W)과 같은 매질이 일반적이지만, 반드시 그러한 것은 아니며 빈 공간이 될 수도 있다. According to the present invention, the means through which light passes, located at the boundary between the first space (S1) and the second space (S2), is generally a medium such as the aforementioned transparent window (W), but is not necessarily so and may be an empty space.
예를 들어서, 도 3의 건물(9)을 참고로, 건물(9)의 외벽에 뚫린 공간을 형성할 수 있으며, 이곳에 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(2000)을 설치할 수 있는 것이다. For example, referring to the building (9) of FIG. 3, a space can be formed through the outer wall of the building (9), and a polarization system (2000) having different reflectances toward both spaces according to the present invention can be installed therein.
예를 들어, 건물의 외벽에 투명창(W)을 설치하기 위하여 뚫린 공간을 형성하였지만 이 공간에 투명창(W)을 설치하지 않고 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(2000)을 설치할 수도 있는 것이다.For example, a space is formed to install a transparent window (W) on the outer wall of a building, but instead of installing the transparent window (W) in this space, a polarizing system (2000) having different reflectances toward both spaces according to the present invention can be installed.
본 발명에 따를 경우, 상기 원편광필름(300)의 상기 제1공간(S1)을 향한 표면(301)에는 반사방지처리를 할 수 있으며, 그러할 경우, 제1공간(S1)에서 인입되어 상기 원편광필름(300)에서 일어날 수 있는 표면반사를 줄일 수 있다. 예를 들어, 반사방지코팅을 하거나 반사방지코팅이 된 필름을 부착할 수 있을 것이다.According to the present invention, the surface (301) of the circular polarizing film (300) facing the first space (S1) can be subjected to an anti-reflection treatment, and in this case, surface reflection that may occur in the circular polarizing film (300) when introduced from the first space (S1) can be reduced. For example, an anti-reflection coating can be applied or a film with an anti-reflection coating can be attached.
본 발명에 따를 경우, 상기 반반사필름(400)과 상기 원편광필름(300)은 상호간에 이격되어 있을 수도 있지만, 상호간에 부착되어 있을 수 있다.According to the present invention, the semi-reflective film (400) and the circular polarizing film (300) may be spaced apart from each other, but may be attached to each other.
이러한 경우, 도 25에서 보이는 바와 같이, 상기 반반사필름(400)과 상기 원편광필름(300)은 투명접착층(34)을 개재하여 상호간에 부착될 수 있는데, 상기 투명접착층(34)의 굴절율은 상기 반반사필름(400)의 굴절율과 상기 원편광필름(300)의 위상지연필름의 굴절율의 사이의 값을 가지는 것이 바람직하다. 이것은 내부반사를 줄이기 위함이다.In this case, as shown in Fig. 25, the semi-reflective film (400) and the circularly polarizing film (300) can be attached to each other via a transparent adhesive layer (34), and it is preferable that the refractive index of the transparent adhesive layer (34) has a value between the refractive index of the semi-reflective film (400) and the refractive index of the phase retardation film of the circularly polarizing film (300). This is to reduce internal reflection.
한편 상기 투명접착층(34)도 복굴절성이 없어야 한다.Meanwhile, the above transparent adhesive layer (34) must also not have birefringence.
도 25를 참고로, 상호간에 부착된 반반사필름(400)과 원편광필름(300)은 도 3의 투명창(W)에서 상기 제1공간(S1)을 향한 면(W11)에 부착되고 있다.Referring to Fig. 25, the semi-reflective film (400) and the circular polarizing film (300) attached to each other are attached to the surface (W11) facing the first space (S1) of the transparent window (W) of Fig. 3.
만일 도 25의 투명창(W)이, 도 26에서 보이는 바와 같이, 제1투명창(W1)과 제2투명창(W2)을 가지는 이중의 투명창으로서 상기 제1투명창(W1)은 상기 제1공간(S1) 쪽에 위치하고 상기 제2투명창(W2)은 상기 제2공간(S2) 쪽에 위치하고 있으면, 상기 상호간에 부착된 상기 반반사필름(400)과 상기 원편광필름(300)은 상기 제1투명창(W1)에서 상기 제2공간(S2)을 향한 면(W12)에 부착되어 있는 것이 바람직하다.If the transparent window (W) of FIG. 25 is a double transparent window having a first transparent window (W1) and a second transparent window (W2), as shown in FIG. 26, and the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side, it is preferable that the semi-reflective film (400) and the circular polarizing film (300) attached to each other are attached to the surface (W12) of the first transparent window (W1) facing the second space (S2).
본 발명에 따를 경우, 상기 반반사필름(400)과 상기 원편광필름(300)이 상호간에 이격되어 배치되는 경우, 도 3의 투명창(W)이 제1투명창(W1)과 제2투명창(W2)을 가지는 이중의 투명창으로서 상기 제1투명창(W1)은 상기 제1공간(S1) 쪽에 위치하고 상기 제2투명창(W2)은 상기 제2공간(S2) 쪽에 위치하고 있으면, 도 27에서 보이는 바와 같이, 상기 반반사필름(400)은 상기 제2투명창(W2)에서 상기 제1공간(S1)을 향한 면(W21)에 부착되고, 상기 원편광필름(300)은 상기 제1투명창(W1)에서 상기 제2공간(S2)을 향한 면(W12)에 부착되는 것이 바람직하다.According to the present invention, when the semi-reflective film (400) and the circularly polarizing film (300) are spaced apart from each other, and the transparent window (W) of FIG. 3 is a double transparent window having a first transparent window (W1) and a second transparent window (W2), and the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side, as shown in FIG. 27, it is preferable that the semi-reflective film (400) be attached to a surface (W21) of the second transparent window (W2) facing the first space (S1), and the circularly polarizing film (300) be attached to a surface (W12) of the first transparent window (W1) facing the second space (S2).
도 25, 도 26 및 도 27에서 보이는 반반사필름(400)과 원편광필름(300)의 투명창(W)과 관련된 배치는 이들 필름(300)(400)이 보호되기 좋은 환경을 택한 것으로서 바람직한 실시예를 보인 것에 지나지 않으며, 도 22를 참고로 설명한 조건하에서 자유롭게 이들 필름(300)(400)을 배치할 수 있다.The arrangement of the semi-reflective film (400) and the circular polarizing film (300) shown in FIGS. 25, 26 and 27 relative to the transparent window (W) is merely a preferred embodiment that selects an environment in which these films (300) (400) are well protected, and these films (300) (400) can be freely arranged under the conditions described with reference to FIG. 22.
도 28은 본 발명의 세 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(3000)의 구조를 보이는 도면이다.FIG. 28 is a drawing showing the structure of a polarization system (3000) having different reflectivities toward both spaces according to the third aspect of the present invention.
이 경우는 본 발명의 첫 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(1000)에 더하여 아래 설명하는 구성을 추가적으로 가진다.This case has an additional configuration described below in addition to the polarization system (1000) having different reflectivities toward both spaces according to the first aspect of the present invention.
먼저, 본 발명의 세 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(3000)은 상기 반사형 편광수단(200)보다 더욱 상기 제2공간(S2)을 향하여 배치된 컬러편광수단(900)을 가진다.First, the polarization system (3000) having different reflectances toward both spaces according to the third aspect of the present invention has a color polarization means (900) arranged more toward the second space (S2) than the reflective polarization means (200).
이에 따라서 상기 컬러편광수단(900)과 상기 흡수형 편광수단(100)은 상호간에 상대적으로 상기 컬러편광수단(900)은 제2공간(S2)을 향한 쪽에 배치되고, 상기 흡수형 편광수단(100)은 제1공간(S1)을 향한 쪽에 배치되고, 상기 반사형 편광수단(200)은 상기 컬러편광수단(900)과 상기 흡수형 편광수단(100)의 사이에 배치가 된다.Accordingly, the color polarization means (900) and the absorption type polarization means (100) are arranged relative to each other, with the color polarization means (900) being arranged on the side facing the second space (S2), the absorption type polarization means (100) being arranged on the side facing the first space (S1), and the reflection type polarization means (200) being arranged between the color polarization means (900) and the absorption type polarization means (100).
이 경우에, 상호간에 상대적으로 제2공간(S2) 또는 제1공간(S1)을 향한 쪽에 배치가 된다는 의미는 본 발명의 첫 번째와 두 번 째의 측면에서 설명한 바와 같다.In this case, the meaning of being arranged relatively toward the second space (S2) or the first space (S1) is as described in the first and second aspects of the present invention.
따라서 상기 제2공간(S2)에 머무는 자는 상기 컬러편광수단(900)과 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)을 통하여 제1공간(S1)을 바라보게 되고, 상기 제1공간(S1)에 머무는 자는 상기 흡수형 편광수단(100)과 상기 반사형 편광수단(200)과 상기 컬러편광수단(900)을 통하여 상기 제2공간(S2)을 바라보게 된다.Accordingly, a person staying in the second space (S2) looks at the first space (S1) through the color polarization means (900), the reflective polarization means (200), and the absorbent polarization means (100), and a person staying in the first space (S1) looks at the second space (S2) through the absorbent polarization means (100), the reflective polarization means (200), and the color polarization means (900).
즉 본 발명의 세 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(3000)에서, 상기 제1공간(S1)은 상기 제2공간(S2)에 머무는 자가 상기 컬러편광수단(900)과 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)을 통하여 바라보는 대상이 되고, 상기 제2공간(S2)은 상기 제1공간(S1)에 머무는 자가 상기 흡수형 편광수단(100)과 상기 반사형 편광수단(200)과 상기 컬러편광수단(900)을 통하여 바라보는 대상이 되는 것이다.That is, in the polarization system (3000) having different reflectivities toward both spaces according to the third aspect of the present invention, the first space (S1) becomes an object that a person staying in the second space (S2) views through the color polarization means (900), the reflective polarization means (200), and the absorbent polarization means (100), and the second space (S2) becomes an object that a person staying in the first space (S1) views through the absorbent polarization means (100), the reflective polarization means (200), and the color polarization means (900).
이 경우, 바라보는 대상이라는 것은 말 그대로 바라보는 것을 의미하는 것이며, 반드시 보이게 되는 것을 내포하지는 않음은 본 발명의 첫 번째 측면의 경우와 같다.In this case, the object of viewing literally means viewing, and does not necessarily imply that something is visible, as in the case of the first aspect of the present invention.
또한, 상기 제1공간(S1) 또는 제2공간(S1)에 머무는 자는 반드시 실제 그 공간에 머무는 사람을 의미하지는 않으며 바라볼 수 있는 수단이 위치할 수 있는 것을 의미하며, 또한, 사람이 아닌 CCTV등 사진이나 동영상을 찍는 장치가 될 수도 있음도 첫 번째 측면과 같다.In addition, the person staying in the first space (S1) or the second space (S1) does not necessarily mean a person actually staying in the space, but means that a means of viewing can be located, and also, as in the first aspect, it can be a device that takes pictures or videos, such as a CCTV, rather than a person.
도 29에서 보이는 바와 같이, 이러한 컬러편광수단(900)이 놓이는 제3평면(900p)과 상기 반사형 편광수단(200)이 놓이는 평면인 제2평면(200p)은 상호간에 평행하며, 이에 따라서, 상기 흡수형 편광수단(100)이 놓이는 평면인 제1평면(100p)과 상기 반사형 편광수단(200)이 놓이는 평면인 제2평면(200p)과 상기 컬러편광수단(900)이 놓이는 제3평면(900p)은 상호간에 평행하다. (도 2 참고)As shown in Fig. 29, the third plane (900p) on which the color polarization means (900) is placed and the second plane (200p) on which the reflective polarization means (200) is placed are parallel to each other, and accordingly, the first plane (100p) on which the absorption polarization means (100) is placed, the second plane (200p) on which the reflective polarization means (200) is placed, and the third plane (900p) on which the color polarization means (900) is placed are parallel to each other. (See Fig. 2)
또한, 본 실시예의 경우, 도 30의 (c)가 보이는 바와 같이, 이들 컬러편광수단(900)과 반사형 편광수단(200)의 투과축(900a)(200a)의 방향은 상호간에 평행을 이루고 있다. 즉 이들 투과축(900a)(200a)의 방향이 이루는 각도는 0°를 이룬다. In addition, in the case of the present embodiment, as shown in (c) of FIG. 30, the directions of the transmission axes (900a) (200a) of the color polarizing means (900) and the reflective polarizing means (200) are parallel to each other. In other words, the angle formed by the directions of the transmission axes (900a) (200a) is 0°.
또한 반사형 편광수단(200)과 흡수형 편광수단(100)의 투과축(200a)(100a)의 방향은 상호간에 평행을 이루어 이들 투과축(200a)(100a)의 방향이 이루는 각도는 0°를 이룬다. (도 8의 (c) 참고)In addition, the directions of the transmission axes (200a)(100a) of the reflective polarizing means (200) and the absorption polarizing means (100) are parallel to each other, and the angle formed by the directions of these transmission axes (200a)(100a) is 0°. (See (c) of Fig. 8)
본 발명에서 이들 투과축(900a)(200a)(100a)의 방향이 상호간에 평행한 것은 바람직한 실시예로서 반드시 그러하여야만 하는 것은 아니다. 이에 대해서는 후술한다.In the present invention, it is a preferred embodiment that the directions of the transmission axes (900a), (200a), and (100a) are parallel to each other, but this is not necessarily the case. This will be described later.
본 발명에서 컬러편광수단(900)은 투과축의 방향(900a)과 평행한 편광방향을 가진 빛이 입사하는 경우 가시광선에 있어 모든 파장의 빛이 투과하게 되며, 흡수축의 방향(투과축에 수직한 방향)과 평행한 편광방향을 가진 빛이 입사하는 경우 가시광선 중 특정파장(또는 가시광선 중 특정 파장영역)의 파장을 가진 빛만을 투과시키고 나머지는 흡수하는 편광수단을 말한다.In the present invention, the color polarizing means (900) refers to a polarizing means that, when light having a polarization direction parallel to the direction of the transmission axis (900a) is incident, light of all wavelengths in the visible light is transmitted, and when light having a polarization direction parallel to the direction of the absorption axis (the direction perpendicular to the transmission axis) is incident, only light having a wavelength of a specific wavelength (or a specific wavelength range in the visible light) is transmitted and the rest is absorbed.
이에 따라서, 본 발명에서 컬러편광수단(900)은 투과축의 방향(900a) 외에 흡수축의 방향으로 편광된 빛도 특정 색상(특정 파장 또는 특정 파장대)에 대해서는 투과를 시키는 특성을 가진다. 즉 투과축의 방향으로 편광된 빛은 모든 파장의 빛에 대하여 투과를 시키는데, 흡수축 방향으로 편광된 빛은 특정 색상(또는 특정 파장 또는 특정 파장대)의 빛(이하 '컬러 편광필름의 색상의 빛')은 투과시키고, 나머지 파장(나머지 색상)의 빛은 흡수하게 된다.Accordingly, in the present invention, the color polarizing means (900) has a characteristic of transmitting light polarized in the direction of the absorption axis in addition to the direction of the transmission axis (900a) for a specific color (specific wavelength or specific wavelength range). That is, light polarized in the direction of the transmission axis transmits light of all wavelengths, while light polarized in the direction of the absorption axis transmits light of a specific color (or specific wavelength or specific wavelength range) (hereinafter, “color light of the color polarizing film”) and absorbs light of the remaining wavelengths (remaining colors).
본 세 번째 측면에 따를 경우, 첫 번째 측면의 경우와 같이, 이들 컬러편광수단(900)과 반사형 편광수단(200)과 흡수형 편광수단(100)은 필름(film)형태의 것이 사용되는 것이 많겠지만, 시트(sheet) 또는 판(plate)형태의 것을 배제하는 것은 아니다.According to this third aspect, as in the case of the first aspect, these color polarizing means (900), reflective polarizing means (200), and absorption polarizing means (100) are often used in the form of a film, but those in the form of a sheet or plate are not excluded.
이하에서는 이들 컬러편광수단(900)과 반사형 편광수단(200)과 흡수형 편광수단(100)이 필름형태의 것이 사용되는 경우를 예를 들어 설명한다.Below, examples are given of cases where the color polarizing means (900), reflective polarizing means (200), and absorption polarizing means (100) are used in the form of films.
도 28을 참고로, 도 28의 (a)는 무편광의 빛(90)이 상기 제2공간(S2)으로부터 상기 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(3000)에 인입하여 제1공간(S1)에 이르기까지 빛(90)에 일어나는 여정을 보인다.With reference to Fig. 28, Fig. 28 (a) shows the journey of unpolarized light (90) from the second space (S2) to the first space (S1) by entering a polarization system (3000) with different reflectances toward both spaces.
이를 살펴보면, 제2공간(S2)으로부터 무편광의 빛(90)이 상기 컬러편광필름(900)으로 입사되어 이를 통과하여 빛(90')이 되고, 이 빛(90')이 반사형 편광필름(200)을 통과하여 빛(90")가 되고 이 빛(90")이 흡수형 편광필름(100)을 통과하여 빛(90"')이 되어 제1공간(S1)에 이르는 것을 보이며, 이 경로에서 빛(90')은 반사형 편광필름(200)을 통과도 하지만 반사형 편광필름(200)에서 반사도 되어 반사광은 빛(90'R)이 되어 다시 컬러편광필름(900)을 통과하여 제2공간(S2)에 도착한 빛(90"R)이 된 것을 보인다.In this regard, it can be seen that unpolarized light (90) from the second space (S2) is incident on the color polarizing film (900), passes through it, becomes light (90'), and this light (90') passes through the reflective polarizing film (200) to become light (90"), and this light (90") passes through the absorbent polarizing film (100) to become light (90"') and reaches the first space (S1). In this path, the light (90') passes through the reflective polarizing film (200), but is also reflected by the reflective polarizing film (200), and the reflected light becomes light (90'R), passes through the color polarizing film (900) again, and becomes light (90"R) that arrives at the second space (S2).
도 28의 (b)는 도 28의 (a)의 빛이 지나는 동일한 광경로에 대하여 무편광의 빛(10)이 상기 제1공간(S1)으로부터 상기 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(3000)에 인입하여 제2공간(S2)에 이르기까지 빛(10)에 일어나는 여정을 보이는데, 제1공간(S1)으로부터 무편광의 빛(10)이 상기 흡수형 편광필름(100)으로 입사되어 이를 통과하여 빛(10')이 되고 이 빛(10')이 반사형 편광필름(200)을 통과하여 빛(10")가 되고 이 빛(10")이 컬러편광필름(900)을 통과하여 빛(10"')이 되어 제2공간(S2)에 이르게 된다.FIG. 28 (b) shows the journey of unpolarized light (10) from the first space (S1) to the second space (S2) along the same optical path as that of FIG. 28 (a), where the light (10) enters a polarization system (3000) having different reflectivities toward the two spaces, and then reaches the second space (S2). Unpolarized light (10) from the first space (S1) is incident on the absorptive polarizing film (100), passes through it, and becomes light (10'), and this light (10') passes through the reflective polarizing film (200) to become light (10"), and this light (10") passes through the color polarizing film (900) to become light (10"') and reaches the second space (S2).
도 28에서 상기 컬러편광필름(900)과 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)의 투과축의 방향은 종이면에 수직인 방향으로서 ⊙로 표시되고 있다. 또한 이들의 흡수축(컬러편광필름, 흡수형 편광필름) 또는 반사축(반사형 편광필름)의 방향은 수직의 화살표(↕)로 표시되고 있다.In Fig. 28, the direction of the transmission axis of the color polarizing film (900), the reflective polarizing film (200), and the absorbent polarizing film (100) is indicated by ⊙ as a direction perpendicular to the paper surface. In addition, the direction of their absorption axis (color polarizing film, absorbent polarizing film) or reflection axis (reflective polarizing film) is indicated by a vertical arrow (↕).
도 28의 (a)를 참고로, 제2공간(S2)으로부터 무편광의 빛(90)이 상기 컬러편광필름(900)으로 입사되면, 상기 빛(90)에서 상기 컬러편광필름(900)의 투과축의 방향(⊙)과 평행하게 편광 된 빛은 모두 이를 투과한다. 그리고 상기 빛(90)에서 상기 컬러편광필름(900)의 흡수축(↕)의 방향과 평행하게 편광된 빛과 관련되어서는 상기 컬러편광필름(900)의 색상의 빛은 흡수축을 통하여 투과하고 나머지 파장의 빛은 흡수된다.Referring to (a) of Fig. 28, when unpolarized light (90) from the second space (S2) is incident on the color polarizing film (900), all light polarized in parallel with the direction (⊙) of the transmission axis of the color polarizing film (900) in the light (90) is transmitted therethrough. In addition, with respect to light polarized in parallel with the direction of the absorption axis (↕) of the color polarizing film (900) in the light (90), the color light of the color polarizing film (900) is transmitted through the absorption axis, and light of the remaining wavelengths is absorbed.
따라서 상기 빛(90')은 컬러편광필름(900)의 투과축의 편광방향(⊙)을 가지는 가시광선의 모든 파장의 빛과 컬러편광필름(900)의 흡수축의 편광방향(↕)을 가지는 컬러편광필름(900)의 컬러의 색상의 빛을 가진다.Accordingly, the above light (90') has light of all wavelengths of visible light having a polarization direction (⊙) of the transmission axis of the color polarizing film (900) and light of the color of the color polarizing film (900) having a polarization direction (↕) of the absorption axis of the color polarizing film (900).
이중에서 컬러편광필름(900)의 투과축의 편광방향(⊙)을 가지는 빛은 상기 반사형 편광필름(200)의 투과축의 방향(⊙)이 상기 컬러편광필름의 투과축의 방향(⊙)과 평행하므로 상기 반사형 편광필름(200)을 투과하여 빛(90")이 되된다.Among these, light having a polarization direction (⊙) of the transmission axis of the color polarizing film (900) transmits through the reflective polarizing film (200) and becomes light (90") because the direction (⊙) of the transmission axis of the reflective polarizing film (200) is parallel to the direction (⊙) of the transmission axis of the color polarizing film.
이후 상기 흡수형 편광필름(100)의 투과축의 방향(⊙)이 상기 반사형 편광필름(200)의 투과축의 방향(⊙)과 평행하므로 상기 빛(90")은 상기 흡수형 편광필름(100)을 투과하여 제1공간(S1)에 이르러 빛(90"')이 된다.Afterwards, since the direction (⊙) of the transmission axis of the above-mentioned absorption-type polarizing film (100) is parallel to the direction (⊙) of the transmission axis of the above-mentioned reflection-type polarizing film (200), the light (90") passes through the above-mentioned absorption-type polarizing film (100) and reaches the first space (S1) to become light (90"').
상기 빛(90')에서 상기 컬러편광필름(900)의 흡수축의 편광방향(↕)을 가지는 컬러편광필름(900)의 컬러의 색상의 빛은 그 편광방향이 상기 반사형 편광수단(200)의 반사축의 방향(↕)과 평행하다. 따라서 이 빛은 상기 반사형 편광수단(200)에서 반사되어 빛(90'R)이 되는데 이 빛(90'R)은 편광방향이 상기 컬러편광필름(900)의 흡수축의 방향(↕)과 평행한 것으로서 상기 컬러편광필름(900)의 컬러를 가지는 것이다.In the above light (90'), the color of the color polarizing film (900) having a polarization direction (↕) of the absorption axis of the color polarizing film (900) has a polarization direction that is parallel to the direction (↕) of the reflection axis of the reflective polarizing means (200). Therefore, this light is reflected by the reflective polarizing means (200) to become light (90'R), and this light (90'R) has a polarization direction that is parallel to the direction (↕) of the absorption axis of the color polarizing film (900) and has the color of the color polarizing film (900).
따라서 상기 빛(90'R)은 상기 컬러편광필름(900)의 흡수축을 다시 투과하여 빛(90"R)이 되어 제2공간(S2)에 이르게 되는데 상기 빛(90"R)은 상기 컬러편광필름(900)의 색상을 띠게 된다. Accordingly, the light (90'R) passes through the absorption axis of the color polarizing film (900) again and becomes light (90"R) and reaches the second space (S2), and the light (90"R) takes on the color of the color polarizing film (900).
즉 제2공간(S2)에 머무는 자가 상기 컬러편광필름(900)을 바라보면 상기 컬러편광필름(900)의 색상을 띤 반사광(90"R)을 보게 될 수 있는 것이며, 이 반사광(90"R)은 상기 컬러편광필름(900)의 색상의 파장만을 가지고 있으므로 선명한 색상으로 나타나게 된다.That is, when a person staying in the second space (S2) looks at the color polarizing film (900), he or she can see reflected light (90"R) having the color of the color polarizing film (900), and since this reflected light (90"R) has only the wavelength of the color of the color polarizing film (900), it appears as a vivid color.
도 28의 (b)를 참고로, 상기 제1공간(S1)에서 출발한 무편광(10)의 빛은 상기 흡수형 편광필름(100)을 투과하면서 상기 흡수형 편광필름(100)의 투과축의 방향(⊙)과 평행한 편광방향을 가지는 빛은 이를 투과하여 빛(10')이 된다.Referring to (b) of Fig. 28, unpolarized light (10) starting from the first space (S1) passes through the absorbent polarizing film (100), and light having a polarization direction parallel to the direction (⊙) of the transmission axis of the absorbent polarizing film (100) passes through it and becomes light (10').
제1공간(S1)으로부터 상기 흡수형 편광필름(100)으로 입사되는 무편광의 빛(10)에서 상기 흡수형 편광필름(100)의 흡수축의 방향과 평행한 방향의 파동의 빛은 상기 흡수형 편광필름(100)을 투과하지 못하고 흡수된다.In the unpolarized light (10) incident from the first space (S1) onto the absorbent polarizing film (100), light of a wave direction parallel to the direction of the absorption axis of the absorbent polarizing film (100) does not pass through the absorbent polarizing film (100) and is absorbed.
상기 빛(10')은 상기 흡수형 편광필름(100)의 투과축의 방향(⊙)과 평행한 편광방향을 가지는 것인데, 상기 반사형 편광필름(200)과 컬러편광필름(900)의 투과축의 방향(⊙)은 상기 흡수형 편광필름(100)의 투과축의 방향(⊙)과 평행하므로, 상기 빛(10')은 상기 반사형 편광필름(200)을 투과하여 빛(10")이 되고 상기 컬러편광필름(900)을 투과하여 빛(10"')이 되며 이들 빛(10')(10")(10"')의 투과축의 방향(⊙)은 모두 평행하다.The above light (10') has a polarization direction parallel to the direction (⊙) of the transmission axis of the above absorbing polarizing film (100), and the directions (⊙) of the transmission axes of the above reflecting polarizing film (200) and the color polarizing film (900) are parallel to the direction (⊙) of the transmission axis of the above absorbing polarizing film (100). Therefore, the light (10') becomes light (10") by passing through the reflecting polarizing film (200) and becomes light (10"') by passing through the color polarizing film (900), and the directions (⊙) of the transmission axes of these lights (10') (10") (10"') are all parallel.
따라서 상기 제2공간(S2)에서 상기 제1공간(S1)을 바라보게 되면, 제1공간(S1)에서 기원한 빛(10"')과 더불어 반사형 편광필름(200)에서 반사되어 컬러편광필름(900)을 거친 컬러를 가지는 반사광(90"R)을 보게 된다. 상기 제1공간(S1)에서 상기 제2공간(S2)을 바라보게 되면, 제2공간(S2)에서 기원한 빛(90"')을 보게 되지만, 이 경우, 표면반사를 제외하고 반사광은 없다.Accordingly, when looking at the first space (S1) from the second space (S2), one sees light (10"') originating from the first space (S1) and reflected light (90"R) having a color that has been reflected from the reflective polarizing film (200) and passed through the color polarizing film (900). When looking at the second space (S2) from the first space (S1), one sees light (90"') originating from the second space (S2), but in this case, there is no reflected light except for surface reflection.
이와 같아서, 상기 제1공간(S1)에서 상기 흡수형 편광수단(100)과 상기 반사형 편광수단(200)과 상기 컬러편광수단(900)을 향하여 출발하였다가 이들 흡수형 편광수단(100)과 반사형 편광수단(200)과 컬러편광수단(900)에서 상기 제1공간(S1)으로 반사되는 빛에 대한 반사율인 제1반사율과 상기 제2공간(S2)에서 상기 컬러편광수단(900)과 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)을 향하여 출발하였다가 이들 컬러편광수단(900)과 반사형 편광수단(200)과 흡수형 편광수단(100)에서 상기 제2공간(S2)으로 반사되는 빛에 대한 반사율인 제2반사율은 서로 다르게 된다. 즉 적어도 특정 파장(또는 파장대, 색상)에 대해서는 제2반사율이 제1반사율보다 높게 된다.In this way, the first reflectivity, which is the reflectivity for light that departs from the first space (S1) toward the absorption-type polarization means (100), the reflection-type polarization means (200), and the color polarization means (900) and is reflected from the absorption-type polarization means (100), the reflection-type polarization means (200), and the color polarization means (900) to the first space (S1), and the second reflectivity, which is the reflectivity for light that departs from the second space (S2) toward the color polarization means (900), the reflection-type polarization means (200), and the absorption-type polarization means (100) and is reflected from the color polarization means (900), the reflection-type polarization means (200), and the absorption-type polarization means (100) to the second space (S2), are different from each other. That is, at least for a certain wavelength (or wavelength range, color), the second reflectance is higher than the first reflectance.
이와 같은 반사율의 차이로 인하여 상기 제2공간(S2)에서 상기 제1공간(S1)을 보았을 때 특정 파장에 대한 높은 반사율로 인한 반사광으로 상기 제1공간(S1)이 보이는 정도가 악화되는 시선차단의 효과가 나타나고, 상기 제1공간(S1)에서 상기 제2공간(S2)을 보았을 때 상기 제2공간(S2)이 보이는 조망은 낮은 반사율로 인하여 반사광으로 인한 방해(조망방해)가 발생하지 않는다.Due to this difference in reflectivity, when the first space (S1) is viewed from the second space (S2), the view of the first space (S1) is worsened by reflected light due to high reflectivity for a specific wavelength, resulting in a line-of-sight blocking effect. When the second space (S2) is viewed from the first space (S1), the view of the second space (S2) is not obstructed (view obstructed) by reflected light due to low reflectivity.
즉, 제2공간(S2)에서 제1공간(S1)을 보게 되면, 반사광(90"R)으로 인하여 제1공간(S1)으로부터 제2공간(S2)으로 인입되는 빛(10"')의 보임이 방해를 받지만, 제1공간(S1)에서 제2공간(S2)을 보게 되면, 흡수형 편광필름(100), 반사형 편광필름(200) 또는 컬러편광필름(900)에서의 반사는 없거나 또는 미미하여 제2공간(S2)으로부터 제1공간(S1)으로 인입되는 빛(90"')의 보임이 반사광으로 인하여 방해를 받지 않는다. That is, when the first space (S1) is viewed from the second space (S2), the light (10"') entering the second space (S2) from the first space (S1) is obstructed by the reflected light (90"R), but when the second space (S2) is viewed from the first space (S1), the reflection from the absorptive polarizing film (100), the reflective polarizing film (200), or the color polarizing film (900) is absent or minimal, so the light (90"') entering the first space (S1) from the second space (S2) is not obstructed by the reflected light.
한편, 제2공간(S2)에서 제1공간(S1)을 바라보면 상기 반사광(90"R)이 컬러편광필름(900)의 색상을 가지는 것으로서 상기 컬러편광필름(900) 설치부분은 선명한 색상을 띠게 보이는 것이다.Meanwhile, when looking at the first space (S1) from the second space (S2), the reflected light (90"R) has the color of the color polarizing film (900), and the part where the color polarizing film (900) is installed appears to have a vivid color.
다만, 본 세 번째 측면의 경우, 반사광이 모든 파장을 가진 첫 번째 측면의 경우와 비교하여, 반사광(90"R)이 특정 파장만을 가지게 되므로 반사광(90"R)의 강도는 떨어지는 것으로서, 시선차단의 효과는 첫 번째 측면과 비교하면 약해질 수 있다.However, in the case of this third aspect, since the reflected light (90"R) has only a specific wavelength compared to the case of the first aspect where the reflected light has all wavelengths, the intensity of the reflected light (90"R) is reduced, and thus the effect of blocking the line of sight may be weakened compared to the first aspect.
한편으로 제1공간(S1)에서 제2공간(S2)을 바라보았을 때, 이론적으로 상기 컬러편광필름(900)의 색상은 보이지 않아야 하지만, 현실상 컬러편광필름(900)의 정밀성이나 제조 방법 또는 구조상의 한계 등으로 인하여 약하지만 컬러편광필름의 색상이 보이게 될 수 있다.On the one hand, when looking at the second space (S2) from the first space (S1), theoretically, the color of the color polarizing film (900) should not be visible, but in reality, due to limitations in the precision, manufacturing method, or structure of the color polarizing film (900), the color of the color polarizing film may be visible, albeit weakly.
이와 같이 본 발명의 세 번째 측면은 제1공간(S1)과 제2공간(S2)에 대하여 각각의 공간을 향하여 반사되는 반사율을 다르게 하면서, 제2공간(S2)에서 제1공간(S1)을 바라보았을 때 컬러를 띠도록 하는 것이다.Thus, the third aspect of the present invention is to make the first space (S1) and the second space (S2) have different reflectances reflected toward each space, so that the first space (S1) appears colored when viewed from the second space (S2).
본 발명의 세 번째 측면에 따를 경우에도 첫 번째 측면의 경우와 같이, 상기 제1공간(S1)과 제2공간(S2)의 경계에는 빛이 투과하는 수단이 위치하고, 상기 컬러편광필름(900)과 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)은 상기 빛이 투과하는 수단에 배치될 수 있다.Even in accordance with the third aspect of the present invention, as in the case of the first aspect, a means for transmitting light is positioned at the boundary between the first space (S1) and the second space (S2), and the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) can be arranged on the means for transmitting light.
첫 번째 측면에서 상기 빛이 투과하는 수단의 예로서 투명창(W) 또는 빈 공간을 들었는데, 본 세 번째 측면에 따른 실시예에서는 투명창(W)에 상기 컬러편광필름(900)과 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)이 배치되는 예를 보이기로 한다.In the first aspect, a transparent window (W) or an empty space was mentioned as an example of a means through which the light transmits, and in the embodiment according to the third aspect, an example in which the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) are arranged in the transparent window (W) will be shown.
물론 첫 번째 측면과 같이 상기 빛이 투과하는 수단은 빈 공간이 될 수 있다. 즉 도 3의 건물(9)을 참고로, 건물(9)의 외벽에 뚫린 공간을 형성할 수 있으며, 이곳에 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(3000)을 설치할 수 있는 것이다. 이와 같이, 어떠한 공간에 투명창(W) 등 빛이 투과하는 특정한 매질을 설치하지 않고 본 발명의 세 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(3000)을 설치할 수도 있는 것이다.Of course, as in the first aspect, the means through which the light transmits may be an empty space. That is, referring to the building (9) of Fig. 3, a perforated space may be formed in the outer wall of the building (9), and a polarizing system (3000) having different reflectivities toward both spaces according to the present invention may be installed therein. In this way, a polarizing system (3000) having different reflectivities toward both spaces according to the third aspect of the present invention may be installed in any space without installing a specific medium through which light transmits, such as a transparent window (W).
도 31은 건물의 외벽 등에 설치되는 투명창(W)에 대하여 상기 컬러편광필름(900)과 상기 반사형 편광필름(200)은 상호간에 부착되어 상기 제2공간(S2)을 향한 면(W12)에 부착이 되고, 상기 흡수형 편광필름(100)은 상기 제1공간(S1)을 향한 면(W11)에 부착이 된다.Fig. 31 shows a transparent window (W) installed on an exterior wall of a building, etc., in which the color polarizing film (900) and the reflective polarizing film (200) are attached to each other and are attached to a surface (W12) facing the second space (S2), and the absorptive polarizing film (100) is attached to a surface (W11) facing the first space (S1).
이 경우, 상기 제2공간(S2)은 건물의 외부가 되고, 상기 제1공간(S1)은 건물의 내부가 될 것이다.In this case, the second space (S2) will be the exterior of the building, and the first space (S1) will be the interior of the building.
도 32는 제1투명창(W1)과 제2투명창(W2)을 가지는 이중의 투명창(W)이 건물의 외벽에 제공되는 경우로서 상기 제1투명창(W1)은 상기 제1공간(S1) 쪽에 위치하고 상기 제2투명창(W2)은 상기 제2공간(S2) 쪽에 위치하고 있다.Fig. 32 shows a case where a double transparent window (W) having a first transparent window (W1) and a second transparent window (W2) is provided on the outer wall of a building, wherein the first transparent window (W1) is located on the first space (S1) side and the second transparent window (W2) is located on the second space (S2) side.
이 경우도 상기 제2공간(S2)은 건물의 외부가 되고, 상기 제1공간(S1)은 건물의 내부가 될 것이다.In this case, the second space (S2) will be the exterior of the building, and the first space (S1) will be the interior of the building.
도시된 바와 같이, 상호간에 부착된 상기 컬러편광필름(900)과 반사형 편광필름(200)이 제2투명창(W2)의 상기 제1공간(S1)을 향한 면(W21)에 부착이 되고, 상기 흡수형 편광필름(100)은 상기 제1투명창(W1)의 상기 제2공간(S2)을 향한 면(W12)에 부착되어 있다.As shown, the color polarizing film (900) and the reflective polarizing film (200) attached to each other are attached to the surface (W21) of the second transparent window (W2) facing the first space (S1), and the absorptive polarizing film (100) is attached to the surface (W12) of the first transparent window (W1) facing the second space (S2).
도 31과 도 32에서 보이는 컬러편광필름(900)과 반사형 편광필름(200)과 흡수형 편광필름(100)의 투명창(W)과 관련된 배치는 이들 필름(900)(100)(200)이 보호되기 좋은 환경을 택한 것으로서 실시예를 보인 것에 지나지 않으며, 본 발명에 따른 조건하에서 자유롭게 이들 필름(900)(100)(200)을 배치할 수 있다.The arrangement of the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) shown in FIGS. 31 and 32 relative to the transparent window (W) is merely an example of an environment in which these films (900) (100) (200) are well protected, and these films (900) (100) (200) can be freely arranged under conditions according to the present invention.
또한 도 31과 도 32에서는 유리창 등에 부착하여 고정하는 방법이 도시가 되어 있으나, 부착하여 고정하지 아니하고 블라인드나 롤스크린 형태로 하여 이들 필름의 설치와 제거를 자유롭게 할 수도 있는데 본 발명은 이러한 경우를 포함한다.In addition, in FIGS. 31 and 32, a method of attaching and fixing the film to a glass window or the like is illustrated, but instead of attaching and fixing the film, it may be installed and removed freely in the form of a blind or roller screen, and the present invention includes such a case.
또한, 도 31과 도 32에서는 유리창의 전면에 컬러편광필름(900)과 반사형 편광필름(200)과 흡수형 편광필름(100)이 설치된 것을 보이고 있으나, 필요한 일부분의 영역에만 설치하는 것도 얼마든 가능함은 물론이다.In addition, in FIGS. 31 and 32, a color polarizing film (900), a reflective polarizing film (200), and an absorptive polarizing film (100) are shown installed on the front surface of the glass window, but it is of course possible to install them only in a necessary portion of the area.
본 발명의 바람직한 실시예의 경우, 전술한 바와 같이, 도 30의 (c)를 참고로, 컬러편광필름(900)과 반사형 편광수단(200)의 투과축(900a)(200a)의 방향이 서로 평행을 이루고 있다.In a preferred embodiment of the present invention, as described above, with reference to (c) of FIG. 30, the directions of the transmission axes (900a) (200a) of the color polarizing film (900) and the reflective polarizing means (200) are parallel to each other.
일반적으로 컬러편광필름(900)과 반사형 편광수단(200)의 투과축(900a)(200a)의 방향이 상호간에 이루는 각도(θ2)가 증가함에 따라 전술한 반사광(90"R)의 색상은 엷어지며, 상기 제1공간(S1)에서 보게 되는 빛(90"')의 색상은 짙어지게 된다.In general, as the angle (θ2) formed between the direction of the transmission axis (900a) (200a) of the color polarizing film (900) and the reflective polarizing means (200) increases, the color of the aforementioned reflected light (90"R) becomes lighter, and the color of the light (90"') seen in the first space (S1) becomes darker.
따라서 이러한 원리를 이용하여 상기 컬러편광필름(900)과 상기 반사형 편광수단(200)의 투과축(900a)(200a)의 방향이 상호간에 이루는 각도(θ2)는 적용되는 상황에 맞게 결정하여 최적의 효과를 얻도록 할 수 있을 것이다. 즉 양쪽 공간에서 보았을 때 원하는 컬러의 농도에 따라 상기 각도(θ2)를 조정하면 될 것이다.Therefore, by using this principle, the angle (θ2) formed between the direction of the transmission axis (900a) (200a) of the color polarizing film (900) and the reflective polarizing means (200) can be determined according to the applicable situation to obtain the optimal effect. In other words, the angle (θ2) can be adjusted according to the desired color concentration when viewed from both spaces.
한편으로, 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)의 투과축(200a)(100a)의 방향이 상호간에 이루는 각도(θ1)는 첫 번째 측면에서 전술한 바와 같이 상기 흡수형 편광필름(100)의 투과축(200a)(100a)의 방향이 상호간에 이루는 각도(θ1)가 증가함에 따라 제1공간(S1)을 향한 반사광의 세기는 증가하고 이들 반사형 편광필름(200)과 상기 흡수형 편광필름(100)을 투과하는 빛의 세기는 줄어들게 된다.On the one hand, as the angle (θ1) formed between the directions of the transmission axes (200a)(100a) of the reflective polarizing film (200) and the absorbent polarizing film (100) increases as described above in the first aspect, the intensity of the reflected light toward the first space (S1) increases and the intensity of the light passing through the reflective polarizing film (200) and the absorbent polarizing film (100) decreases.
그러므로 이러한 원리를 전체적으로 적용하여 가장 상황에 맞는 컬러편광필름(900)과 반사형 편광필름(200)과 흡수형 편광필름(100)의 투과축(900a)(200a)(100a)의 방향들이 상호간에 이루는 각도(θ1)(θ2)를 조정할 수 있을 것이다.Therefore, by applying this principle as a whole, it will be possible to adjust the angle (θ1)(θ2) formed between the directions of the transmission axes (900a)(200a)(100a) of the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) that are most suitable for the situation.
즉 컬러편광필름(900)과 반사형 편광필름(200)의 투과축(900a)(200a)의 방향이 상호간에 이루는 각도(θ2)와 반사형 편광필름(200)과 흡수형 편광필름(100)의 투과축(200a)(100a)의 방향이 상호간에 이루는 각도(θ1)를 조정할 수 있는 것이다.That is, the angle (θ2) formed between the directions of the transmission axes (900a) (200a) of the color polarizing film (900) and the reflective polarizing film (200) and the angle (θ1) formed between the directions of the transmission axes (200a) (100a) of the reflective polarizing film (200) and the absorption polarizing film (100) can be adjusted.
기본적으로 프라이버시(privacy)를 고려하여 제1공간(S1)으로부터 제2공간(S2)을 보는 조망을 좋게 하고, 제2공간(S2)으로부터 제1공간(S1)을 보는 조망을 악화시키는 시선차단의 효과를 얻으면서, 제2공간(S2)에서 바라보았을 때 가장 짙은 컬러가 보이고 제1공간(S1)에서 바라보았을 때 가장 엷은 컬러가 보이기를 원한다면, 투과축(900a)(200a)(100a)의 방향이 상호간에 이루는 각도(θ1)(θ2)는 0°인 것이 가장 바람직할 것이다. 즉 이들 투과축(900a)(200a)(100a)의 방향이 상호간에 평행을 이루는 것이다.Basically, if you want to obtain the effect of blocking the view from the first space (S1) to the second space (S2) while taking privacy into consideration and improving the view from the first space (S1) to the second space (S2) and worsening the view from the second space (S2) to the first space (S1), and if you want to see the darkest color when looking from the second space (S2) and the lightest color when looking from the first space (S1), it would be most desirable for the angles (θ1)(θ2) formed by the directions of the transmission axes (900a)(200a)(100a) to each other to be 0°. That is, the directions of these transmission axes (900a)(200a)(100a) are parallel to each other.
그러나 양쪽공간에서 각각 서로를 바라보았을 때 시선차단의 정도, 조망의 정도, 컬러의 농도에 대한 욕구는 다를 수 있는 것으로서 이에 맞추어서 가장 최적의 투과축(900a)(200a)(100a)의 방향이 상호간에 이루는 각도(θ1)(θ2)를 정할 수 있을 것이다.However, when looking at each other from both spaces, the degree of line of sight blocking, the degree of view, and the desire for color concentration may be different, and accordingly, the angle (θ1)(θ2) formed by the direction of the most optimal transmission axis (900a)(200a)(100a) can be determined.
한편으로 본 발명자가 컬러 편광필름(900)과 반사형 편광필름(200)의 투과축(900a)(200a)의 방향이 이루는 각도(θ2)를 조정해가면서 행한 육안관찰에 의한 실험에 의하면, 도 30의 (a)와 (b)를 참고로, 이들의 투과축(900a)(200a)의 방향이 상호간에 평행을 이룰 때 이들이 이루는 각도(θ2)를 0°로 잡으면 이로부터 +7° 또는 -7°까지의 범위(+7°와 -7°포함)에서는 제2공간(S2)에서 제1공간(S1)을 바라보았을 때 보이는 컬러의 농도가 급격히 감소하지 않았으며, 제1공간(S1)에서 제2공간(S2)을 바라보았을 때 보이는 컬러의 농도가 급격히 증가하지 않았다. On the other hand, according to an experiment conducted by the inventor of the present invention by visual observation while adjusting the angle (θ2) formed by the direction of the transmission axis (900a)(200a) of the color polarizing film (900) and the reflective polarizing film (200), with reference to (a) and (b) of FIG. 30, when the directions of their transmission axes (900a)(200a) are parallel to each other, and when the angle (θ2) formed by them is set to 0°, in the range from +7° or -7° (inclusive of +7° and -7°), the concentration of the color visible when looking at the first space (S1) from the second space (S2) did not decrease rapidly, and the concentration of the color visible when looking at the second space (S2) from the first space (S1) did not increase rapidly.
따라서 제2공간(S2)에서 제1공간(S1)을 바라보았을 때 컬러의 농도가 높고 제1공간(S1)에서 제2공간(S2)을 바라보았을 때 컬러의 농도가 매우 낮은 상황을 연출하기 위해서는 이들의 투과축(900a)(200a)의 방향이 상호간에 평행을 이룰 때 이들이 이루는 각도(θ2)를 0°로 잡으면 이로부터 +7° 또는 -7°까지의 범위(+7°와 -7°포함)에 있는 것이 바람직하다고 할 것이다.Therefore, in order to create a situation in which the color concentration is high when looking at the first space (S1) from the second space (S2) and the color concentration is very low when looking at the second space (S2) from the first space (S1), it is desirable that the angle (θ2) formed by the two when the directions of their transmission axes (900a) (200a) are parallel to each other be within a range of +7° or -7° (including +7° and -7°).
본 발명의 세 번째 측면에 따를 경우, 상기 컬러편광필름(900) 또는 상기 반사형 편광필름(200) 중 어느 하나 또는 두 가지 모두는 장식, 광고 또는 정보전달을 위한 특정한 형태를 가질 수 있다. According to the third aspect of the present invention, either or both of the color polarizing film (900) or the reflective polarizing film (200) may have a specific shape for decoration, advertising or information transmission.
한편으로, 이러한 경우, 상기 컬러편광필름(900)과 반사형 편광필름(200)은 상기 제2공간(S2)에서 이들을 바라보았을 때 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분이 상호간에 겹치도록 배치될 수 있다.On the one hand, in this case, the color polarizing film (900) and the reflective polarizing film (200) may be positioned so that one is located within the area of the other when viewed from the second space (S2), or so that each part overlaps with the other.
본 발명이 이와 같이 적용되는 경우, 도 28을 참고로 설명한 기본적인 구성을 그대로 따르며, 컬러편광필름(900)과 반사형 편광필름(200) 각각의 투과축의 방향이 상호간에 평행하는 경우가 이 적용 예에 가장 적합하다. 따라서 이하는 컬러편광필름(900)과 반사형 편광필름(200) 각각의 투과축의 방향이 상호간에 일치하는 경우를 가지고 본건 적용예를 설명한다.When the present invention is applied in this way, the basic configuration described with reference to FIG. 28 is followed, and the case where the directions of the transmission axes of the color polarizing film (900) and the reflective polarizing film (200) are mutually parallel is most suitable for this application example. Therefore, the following describes the application example of this invention with the case where the directions of the transmission axes of the color polarizing film (900) and the reflective polarizing film (200) are mutually coincident.
도 33은 건물의 외벽에 설치된 투명창(W)에 대하여 사과모양의 도안을 가지는 컬러편광필름(900)과 이와 평행하게 배치되고 그 투과축이 일치하는 반사형 편필름(200)이 설치된 것을 보인다. 이 경우는 반사형 편광필름(200)의 면적의 내부에 컬러편광필름(900)이 위치하고 있는 것이다.Figure 33 shows a transparent window (W) installed on the exterior wall of a building, in which a color polarizing film (900) having an apple-shaped design and a reflective polarizing film (200) arranged parallel to the color polarizing film and having a transmission axis that coincides with the color polarizing film (900) are installed. In this case, the color polarizing film (900) is positioned within the area of the reflective polarizing film (200).
이들 사과모양의 컬러편광필름(900)과 반사형 편광필름(200)은 상호간에 부착되어 투명창(W)의 제2공간을 향한 면(W12)에 부착되고, 흡수형 편광필름(100)은 투명창(W)의 제1공간을 향한 면(W11)에 부착되어 있다.These apple-shaped color polarizing films (900) and reflective polarizing films (200) are attached to each other and are attached to the surface (W12) facing the second space of the transparent window (W), and the absorptive polarizing film (100) is attached to the surface (W11) facing the first space of the transparent window (W).
그러면 건물의 외부공간인 제2공간(S2)에서 보았을 때, 상기 사과모양은 컬러편광필름(900)으로 이루어진 것으로서 선명한 색상을 띠게 되어 시인성이 뛰어나게 되고 높은 미감을 창출하는 것이 가능해진다. 한편으로 이 경우 사과모양의 주변은 반사형 편광필름(200)만이 보이는 것으로서, 반사형 편광필름(200)의 반사광으로 인하여 주변이 대비되는 효과를 누릴 수 있을 것이다.Then, when viewed from the second space (S2), which is the external space of the building, the apple shape is made of a color polarizing film (900), so it has a vivid color, which makes it possible to create excellent visibility and a high aesthetic sense. On the other hand, in this case, only the reflective polarizing film (200) is visible around the apple shape, so the effect of contrasting the surroundings can be enjoyed due to the reflected light of the reflective polarizing film (200).
하지만 건물의 내부공간인 제1공간(S1)에서 상기 사과모양의 컬러편광필름(900)을 투과하여 제2공간(S2)을 보는 것, 즉 조망을 하는데 아무런 지장이 없다. 단지 상기 사과양의 윤곽을 이루는 형태선이 보일 뿐이다. (전술한 바와 같이 컬러편광필름의 현실적인 문제로 약간의 색상이 보일 수도 있다.)However, there is no problem viewing the second space (S2) from the first space (S1), the interior space of the building, through the apple-shaped color polarizing film (900). Only the outline of the apple shape is visible. (As mentioned above, due to practical issues with the color polarizing film, some color may be visible.)
이는 본 발명에서 컬러편광필름(900)과 반사형 편광필름(200)과 흡수형 편광필름(100)의 투과축이 일치하여, 만약 컬러편광필름(900)과 반사형 편광필름(200)과 흡수형 편광필름(100)의 효율이 이상적이고 내부 반사 등의 문제가 없다면, 이들 필름(900)(200)(100)을 투과한 빛에서 추가적인 광손실이 일어나게 되지 않고, 따라서 컬러편광필름(900)과 반사형 편광필름(200)과 흡수형 편광필름(100) 모두를 투과한 빛의 세기나 반사형 편광필름(200)과 흡수형 편광필름(100)을 또는 이들 중 하나만을 통과한 빛의 세기가 차이가 없기 때문에 이와 같은 효과가 나타나게 되는 것이다. (내부반사가 있다고 하더라도 그 영향은 크지 않기 때문에 이와 같은 효과는 유지될 수 있다.)This is because, in the present invention, the transmission axes of the color polarizing film (900), the reflective polarizing film (200), and the absorbent polarizing film (100) are aligned, so if the efficiency of the color polarizing film (900), the reflective polarizing film (200), and the absorbent polarizing film (100) is ideal and there are no problems such as internal reflection, no additional light loss occurs in the light transmitted through these films (900), (200), and (100), and therefore, there is no difference in the intensity of light transmitted through all of the color polarizing film (900), the reflective polarizing film (200), and the absorbent polarizing film (100), or the intensity of light transmitted through only one of the reflective polarizing film (200) and the absorbent polarizing film (100), and thus such an effect is produced. (Even if there is internal reflection, the effect is not significant, so such an effect can be maintained.)
도 34는 투명창(W)에 대하여 컬러편광필름(900)이 설치되고 그 뒷면에 글자(APPLE)의 형상을 가지는 반사형 편광필름(200)이 설치된 경우를 보인다. Figure 34 shows a case where a color polarizing film (900) is installed on a transparent window (W) and a reflective polarizing film (200) having the shape of letters (APPLE) is installed on the back side thereof.
이 경우, 상기 컬러편광필름(900)과 상기 반사형 편광필름(200)은 상호간에 평행하게 배치되고 이들의 투과축은 일치하며, 상기 컬러편광필름(900)의 면적의 내부에 상기 반사형 편광필름(200)이 위치하고 있다. 또한 상기 컬러편광필름(900)과 상기 반사형 편광필름(200)의 투과축은 흡수형 편광필름(100)의 투과축과도 일치한다.In this case, the color polarizing film (900) and the reflective polarizing film (200) are arranged parallel to each other, their transmission axes are coincident, and the reflective polarizing film (200) is positioned within the area of the color polarizing film (900). In addition, the transmission axes of the color polarizing film (900) and the reflective polarizing film (200) also coincide with the transmission axis of the absorptive polarizing film (100).
이들 컬러편광필름(900)과 글자(APPLE)형상의 반사형 편광필름(200)은 상호간에 부착되어 투명창(W)의 제2공간을 향한 면(W12)에 부착되고, 흡수형 편광필름(100)은 투명창(W)의 제1공간을 향한 면(W11)에 부착되어 있다.These color polarizing films (900) and a reflective polarizing film (200) in the shape of letters (APPLE) are attached to each other and are attached to the surface (W12) facing the second space of the transparent window (W), and the absorptive polarizing film (100) is attached to the surface (W11) facing the first space of the transparent window (W).
이 경우, 제2공간(S2)에서 보았을 때, 제2공간(S2)으로부터 인입된 흡수축을 투과한 컬러색상의 빛이 상기 글자(APPLE)형상의 반사형 편광필름(200)에서 반사되어 다시 컬러편광필름(900)의 흡수축을 투과하여 나가는 것으로서 상기 글자(APPLE)가 색상을 띠게 된다. 상기 컬러편광필름(900)에서 상기 글자(APPLE)형상의 반사형 편광필름(200)에 대응하지 않는 부분(즉 APPLE 글자에 대응하지 않는 부분)에서 반사는 없으며 상기 글자(APPLE)는 선명한 색상을 연출하게 된다.In this case, when viewed from the second space (S2), the color light that has passed through the absorption axis introduced from the second space (S2) is reflected by the reflective polarizing film (200) in the shape of the letters (APPLE) and passes through the absorption axis of the color polarizing film (900) again, so that the letters (APPLE) take on a color. In the color polarizing film (900), there is no reflection in a part that does not correspond to the reflective polarizing film (200) in the shape of the letters (APPLE) (i.e., a part that does not correspond to the letters APPLE), and the letters (APPLE) display a vivid color.
한편, 제1공간(S1)에서 보았을 때, 상기 글자(APPLE) 형상의 반사형 편광필름(200)을 투과하여 제2공간(S2)을 보는 것, 즉 조망을 하는데 아무런 지장이 없다. 단지 상기 글자(APPLE)의 윤곽을 이루는 형태선이 보일 뿐이다. (전술한 바와 같이 컬러편광필름의 현실적인 문제로 약간의 컬러가 보일 수도 있는 바, 이렇게 약간의 컬러가 보이게 되는 경우 그 약간의 컬러는 상기 글자(APPLE) 부분에만 나타나는 것이 아니며, 컬러편광필름(900)과 흡수형 편광필름(100)이 빛의 진행방향에서 겹쳐지게 설치된 전체부분에 대하여 동일하게 나타나게 된다.)Meanwhile, when viewed from the first space (S1), there is no problem in viewing the second space (S2) by passing through the reflective polarizing film (200) in the shape of the letters (APPLE). Only the outline of the letters (APPLE) is visible. (As described above, due to the practical problem of the color polarizing film, a slight color may be visible. In this case, the slight color does not appear only in the letter (APPLE) portion, but appears identically in the entire portion where the color polarizing film (900) and the absorptive polarizing film (100) are installed to overlap in the direction of light propagation.)
도 35는 투명창(W)에 대하여 각각이 타원형의 형상을 가지지만 상호간에 대각선으로 배치되는 컬러편광필름(900)과 반사형 편광필름(200)이 투명창(W)의 제2공간(S2)을 향한 면(W22)에 상호간에 부착되어 부착되어있고, 흡수형 편광필름(100)이 투명창(W)의 제1공간(S2)을 향한 면(W11)에 설치된 경우를 보인다.Figure 35 shows a case where a color polarizing film (900) and a reflective polarizing film (200), each having an elliptical shape but arranged diagonally relative to each other, are attached to each other on a surface (W22) of the transparent window (W) facing the second space (S2), and an absorptive polarizing film (100) is installed on a surface (W11) of the transparent window (W) facing the first space (S2).
제2공간(S2)에서 보았을 때 이들 컬러편광필름(900)과 반사형 편광필름(200)은 도 35의 (c)에서 보이는 바와 같이 배치되고 있는데, 도 35의 (a)에서는 사시도로서 보이는 것이다.When viewed from the second space (S2), the color polarizing films (900) and reflective polarizing films (200) are arranged as shown in (c) of Fig. 35, which is shown as a perspective view in (a) of Fig. 35.
이 경우, 상기 컬러편광필름(900)과 반사형 편광필름(200)과 흡수형 편광필름(100)은 상호간에 평행하게 배치되고 이들의 투과축(900a)(200a)(100a)은 평행 하다. In this case, the color polarizing film (900), the reflective polarizing film (200), and the absorptive polarizing film (100) are arranged parallel to each other, and their transmission axes (900a) (200a) (100a) are parallel.
또한, 상기 컬러편광필름(900)과 상기 반사형 편광필름(200) 상호간에 부분이 겹치는 것으로서, 각각의 부분이 상호간에 겹치도록 배치된 경우에 해당된다. In addition, this applies to a case where the color polarizing film (900) and the reflective polarizing film (200) overlap each other, and the respective parts are arranged to overlap each other.
도 35의 (c)에서 빗금이 쳐진 도시부호 920이 각각의 것에서 겹쳐지는 부분을 나타내고, 도시부호 212는 겹쳐지지 않는 반사형 편광필름(200)만의 영역을 나타내고, 도시부호 912는 겹쳐지지 않는 컬러편광필름(900)만의 영역을 나타낸다.In (c) of Fig. 35, the hatched symbol 920 indicates the overlapping portion of each, the symbol 212 indicates the area of only the non-overlapping reflective polarizing film (200), and the symbol 912 indicates the area of only the non-overlapping color polarizing film (900).
제2공간(S2)에서 바라볼 때, 컬러편광필름(900)과 반사형 편광필름(200)이 겹쳐져 있는 부분(920)에서는 선명한 색상을 띠게 되고, 겹쳐지지 않는 컬러편광필름(900)만의 영역(912)에서는 이론적으로 색상을 띠지 않아야 하지만 현실적으로는 엷은 컬러를 띨 수 있다. 겹쳐지지 않는 반사형 편광필름(200)만의 영역(212)에서는 모든 파장에서 반사된 빛을 보게 된다.When viewed from the second space (S2), the area (920) where the color polarizing film (900) and the reflective polarizing film (200) overlap has a vivid color, and the area (912) of the non-overlapping color polarizing film (900) alone should theoretically have no color, but in reality, it may have a light color. In the area (212) of the non-overlapping reflective polarizing film (200) alone, reflected light at all wavelengths is seen.
제1공간(S1)에서 바라볼 때, 컬러편광필름(900)과 반사형 편광필름(200)이 겹쳐져 있는 부분(920)에 대하여 제2공간(S2)으로부터 출발하여 컬러편광필름(900)의 투과축을 투과한 빛이 순차적으로 반사형 편광필름(200)의 투과축과 흡수형 편광필름(100)의 투과축을 투과하는 것으로서, 제1공간(S1)에서 제2공간(S2)을 조망하는데 아무런 지장이 없지만 현실적으로 엷은 색상을 띨 수도 있게 된다. When viewed from the first space (S1), light that originates from the second space (S2) and passes through the transmission axis of the color polarizing film (900) sequentially passes through the transmission axis of the reflective polarizing film (200) and the transmission axis of the absorptive polarizing film (100) at the portion (920) where the color polarizing film (900) and the reflective polarizing film (200) overlap, so that there is no problem in viewing the second space (S2) from the first space (S1), but realistically, it may have a light color.
겹쳐지지 않는 컬러편광필름(900)만의 영역(912)에서도 이론적으로 색상을 띠지 않아야 하지만 현실적으로는 엷은 컬러를 띨 수 있다. Even in the area (912) of the non-overlapping color polarizing film (900), there should theoretically be no color, but in reality, it may have a light color.
겹쳐지지 않는 반사형 편광필름(200)만의 영역(212)에서는 제2공간(S2)으로부터 출발하여 반사형 편광필름(200)의 투과축을 투과한 빛이 흡수형 편광필름(100)의 투과축을 투과하여 조망에 아무런 지장이 없다.In the area (212) of the non-overlapping reflective polarizing film (200), light that originates from the second space (S2) and passes through the transmission axis of the reflective polarizing film (200) passes through the transmission axis of the absorptive polarizing film (100), so there is no problem with viewing.
이와 같이, 본 발명의 세 번째 측면에 따를 경우, 상기 컬러편광필름(900)과 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)은 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지도록 하며, 또한, 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분들이 상호간에 겹치도록 배치함으로써, 제1공간(S2)에서 제2공간(S2)을 바라볼 때, 그리고 제2공간(S2)에서 제1공간(S1)을 바라볼 때 컬러와 형태와 반사가 다르게 나타나는 독특한 효과를 얻을 수 있게 되는 것이다.In this way, according to the third aspect of the present invention, the color polarizing film (900), the reflective polarizing means (200), and the absorptive polarizing means (100) are arranged so that one or both of them has a specific shape for decoration, advertising, or information transmission, and further, by positioning one of them within the area of the other or arranging the respective parts to overlap each other, a unique effect can be obtained in which the color, shape, and reflection appear differently when looking at the second space (S2) from the first space (S2), and when looking at the first space (S1) from the second space (S2).
도 36은 본 발명의 네 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(4000)의 구조를 보이는 도면이다.FIG. 36 is a drawing showing the structure of a polarization system (4000) having different reflectivities toward both spaces according to the fourth aspect of the present invention.
본 발명의 네 번째 측면은 반사형 편광수단(200)과 흡수형 편광수단(100)을 포함하는 편광시스템에 따라 양쪽공간을 향한 반사율이 다르게 하는 광학적 원리를 투명의 태양광 발전 패널과 관련되어 적용하는 것이다.The fourth aspect of the present invention is to apply the optical principle of making the reflectivity toward both spaces different according to a polarization system including a reflective polarization means (200) and an absorptive polarization means (100) in relation to a transparent solar power generation panel.
투명의 태양광 발전 패널은 태양광을 받아 발전을 이루는 태양광 발전패널로서, 빛의 투과가 이루어져 투명(반투명 포함)을 이루는 것이다.A transparent solar power panel is a solar power panel that generates electricity by receiving sunlight, and is transparent (including translucent) due to light transmission.
현재 앞면과 뒷면의 양면에서 태양광을 받아 발전을 이룰 수 있는 투명의 태양광 발전 패널이 개발되어있으며, 따라서, 태양광이 제공되는 앞면 쪽 뿐만이 아니라 그 뒷면으로도 빛을 제공하여 발전효율을 높일 수 있다.Currently, transparent solar power panels have been developed that can generate power by receiving sunlight from both the front and back sides, and thus can increase power generation efficiency by providing light not only to the front side where sunlight is provided but also to the back side.
한편 투명의 태양광 발전 패널은 건물의 외벽의 투명창(W) 등에 설치되어 건물 내부의 사람들이 외부를 조망하게 하면서 발전을 이룰 수 있다.Meanwhile, transparent solar power generation panels can be installed on transparent windows (W) on the exterior walls of buildings to generate power while allowing people inside the building to view the outside.
그러나 이러한 경우 건물외벽이 투명창(W)에 설치된 투명의 태양광 발전패널의 뒷면으로 빛을 공급하기는 곤란하다. However, in these cases, it is difficult for the building exterior wall to supply light to the back of the transparent solar power generation panel installed on the transparent window (W).
예를 들어, 투명의 태양광 발전 패널의 뒤쪽으로 반반사필름을 배치하여 투명의 태양광 발전패널을 투과한 빛이 상기 반반사필름에서 반사되어 다시 투명의 태양광 발전 패널로 인입되도록 하여 투명의 태양광 발전 패널의 효율을 증대시킬 수 있을 것이다. 그러나 그러한 경우 건물의 내부에서 외부를 바라볼 때, 특히 외부가 어둡고 실내가 밝은 야간 등의 경우에, 상기 반반사필름에서 건물의 내부로 발생하는 반사광으로 인하여 조망이 악화되는 시선차단의 문제가 발생한다.For example, by placing a semi-reflective film behind a transparent solar power generation panel, light passing through the transparent solar power generation panel is reflected by the semi-reflective film and then re-enters the transparent solar power generation panel, thereby increasing the efficiency of the transparent solar power generation panel. However, in such a case, when looking outside from inside the building, especially at night when the outside is dark and the inside is bright, the problem of visibility obstruction occurs due to the light reflected from the semi-reflective film into the building's interior, which worsens the view.
즉, 예를 들어, 건물의 외벽의 투명창(W)에 투명의 태양광 발전패널이 설치되었을 때, 건물의 내부에서 투명창(W)을 통하여 외부를 바라보는 조망이 방해받지 않으면서 투명의 태양광 발전 패널의 뒷면으로도 빛을 공급할 수 있는 시스템이 요청되는 것이다.That is, for example, when a transparent solar power generation panel is installed on a transparent window (W) of the exterior wall of a building, a system is required that can supply light to the back of the transparent solar power generation panel without obstructing the view of the outside from inside the building through the transparent window (W).
본 발명의 네 번째 측면은 이러한 요청을 만족시키는 것이다.The fourth aspect of the present invention is to satisfy this request.
도 36을 참고로, 본 발명의 네 번째 측면에 따른 양쪽공간을 향한 반사율이 서로 다른 편광시스템(4000)과 관련되어, 우선, 양면으로부터 빛을 받아 발전을 이룰 수 있는 투명의 태양광 발전 패널(990)이 제공된다. With reference to FIG. 36, in relation to a polarization system (4000) having different reflectances toward both sides according to the fourth aspect of the present invention, first, a transparent solar power generation panel (990) capable of generating power by receiving light from both sides is provided.
그리고 상기 양쪽공간을 향한 반사율이 서로 다른 편광시스템(4000)은 상기 투명의 태양광 발전 패널(990)과 같이 설치되는 반사형 편광수단(200)과 흡수형 편광수단(100)을 가진다.And the polarization system (4000) having different reflectances toward the two spaces above has a reflective polarization means (200) and an absorption polarization means (100) installed together with the transparent solar power generation panel (990).
이 경우, 상기 투명의 태양광 발전 패널(990)과 상기 반사형 편광수단(200)은 상호간에 상대적으로 상기 투명의 태양광 발전 패널(990)은 제2공간(S2)을 향한 쪽에 배치되고, 상기 흡수형 편광수단(100)은 제1공간(S1)을 향한 쪽에 배치가 된다. In this case, the transparent solar power generation panel (990) and the reflective polarizing means (200) are arranged relative to each other, with the transparent solar power generation panel (990) being arranged on the side facing the second space (S2) and the absorbing polarizing means (100) being arranged on the side facing the first space (S1).
그리고 상기 투명의 태양광 발전 패널(990)과 상기 흡수형 편광수단(100)의 사이에 상기 반사형 편광수단(200)이 배치된다.And the reflective polarizing means (200) is placed between the transparent solar power generation panel (990) and the absorbing polarizing means (100).
이 경우에, 상호간에 상대적으로 제2공간(S2) 또는 제1공간(S1)을 향한 쪽에 배치가 된다는 의미는 본 발명의 첫 번째와 두 번 째의 측면에서 설명한 바와 같다.In this case, the meaning of being arranged relatively toward the second space (S2) or the first space (S1) is as described in the first and second aspects of the present invention.
본 발명의 네 번째 측면에 따를 경우, 상기 제2공간(S2)은 상기 투명의 태양광 발전 패널(990)로 인입되는 태양광이 제공되는 곳이다. 즉 상기 제2공간(S2)으로부터 상기 투명의 태양광 발전 패널(990)의 발전을 위한 빛이 공급되어지는 곳이다. 당연히 상기 투명의 태양광 발전 패널(990)의 발전을 위한 빛은 자연의 태양광이 대표적인 것이지만, 본 발명에서 상기 태양광은 자연의 태양광 이외에도 상기 투명의 태양광 발전 패널(990)의 발전을 위하여 인위적으로 공급되는 빛을 모두 포함한다.According to the fourth aspect of the present invention, the second space (S2) is a place where sunlight that is introduced into the transparent solar power generation panel (990) is provided. In other words, light for power generation of the transparent solar power generation panel (990) is supplied from the second space (S2). Naturally, the light for power generation of the transparent solar power generation panel (990) is typically natural sunlight, but in the present invention, the sunlight includes all light that is artificially supplied for power generation of the transparent solar power generation panel (990) in addition to natural sunlight.
또한, 상기 제1공간(S1)은 이 공간(S1)에 머무는 자가 상기 흡수형 편광수단(100)과 상기 반사형 편광수단(200)과 상기 투명의 태양광 발전 패널(990)을 통하여 상기 제2공간(S2)을 바라보는 공간이다.In addition, the first space (S1) is a space in which a person staying in this space (S1) views the second space (S2) through the absorption-type polarization means (100), the reflection-type polarization means (200), and the transparent solar power generation panel (990).
이 경우, 상기 제1공간(S1)에 머무는 자는 반드시 실제 그 공간에 머무는 사람을 의미하지는 않으며 바라볼 수 있는 수단이 위치할 수 있는 것을 의미하며, 또한, 사람이 아닌 CCTV등 사진이나 동영상을 찍는 장치가 될 수도 있다.In this case, the person staying in the first space (S1) does not necessarily mean a person actually staying in the space, but means that a means of viewing can be located, and also, it may be a device that takes pictures or videos, such as a CCTV, rather than a person.
본 발명의 네 번째 측면에 따를 경우, 상기 반사형 편광수단(200)은 상기 투명의 태양광 발전 패널(990)에 대하여 상기 제2공간(S2)에서 출발하여 상기 투명의 태양광 발전 패널(990)을 투과한 상기 태양광의 일부가 상기 반사형 편광수단(200)에서 반사되어 다시 상기 태양광 발전 패널(990)의 뒷면을 투과할 수 있도록 배치된다.According to the fourth aspect of the present invention, the reflective polarizing means (200) is arranged so that a portion of the sunlight that originates from the second space (S2) and passes through the transparent solar power generation panel (990) is reflected by the reflective polarizing means (200) and passes through the back surface of the solar power generation panel (990) again.
본 발명의 바람직한 실시예에 따를 경우, 상기 투명의 태양광 발전 패널(990)이 놓이는 평면(990P)과 상기 반사형 편광수단(200)이 놓이는 평면(200P)은 상호간에 평행한 것이 가장 바람직하다. (도 37 참조)According to a preferred embodiment of the present invention, it is most preferable that the plane (990P) on which the transparent solar power generation panel (990) is placed and the plane (200P) on which the reflective polarizing means (200) is placed are parallel to each other. (See Fig. 37)
극단적으로, 만일 상기 투명의 태양광 발전 패널(990)이 놓이는 평면(990P)과 상기 반사형 편광수단(200)이 놓이는 평면(200P)이 서로 수직을 이룬다면, 상기 제2공간(S2)에서 출발하여 상기 투명의 태양광 발전 패널(990)을 투과한 상기 태양광의 일부가 상기 반사형 편광수단(200)에서 반사되지 못할 것이고, 그러면 다시 상기 태양광 발전 패널(990)의 뒷면을 투과하는 일은 없게 될 것이다.In extreme cases, if the plane (990P) on which the transparent solar power generation panel (990) is placed and the plane (200P) on which the reflective polarizing means (200) is placed are perpendicular to each other, some of the sunlight that originates from the second space (S2) and passes through the transparent solar power generation panel (990) will not be reflected by the reflective polarizing means (200), and thus will not pass through the back surface of the solar power generation panel (990) again.
본 발명의 네 번째 측면의 가장 바람직한 실시예에 따를 경우, 도 37에서 보이는 바와 같이, 상기 투명의 태양광 발전 패널(990)이 놓이는 평면(990P)과 상기 반사형 편광수단(200)이 놓이는 평면(200P)과 상기 흡수형 편광수단(100)이 놓이는 평면(100P)은 상호간에 평행하다.According to the most preferred embodiment of the fourth aspect of the present invention, as shown in FIG. 37, the plane (990P) on which the transparent solar power generation panel (990) is placed, the plane (200P) on which the reflective polarizing means (200) is placed, and the plane (100P) on which the absorbing polarizing means (100) is placed are parallel to each other.
또한, 이들 반사형 편광수단(200)의 투과축(200a)의 방향과 흡수형 편광수단(100)의 투과축의 방향은 상호간에 평행을 이루고 있다. 즉 이들 투과축(200a)(100a)의 방향이 이루는 각도는 0°를 이룬다. (도 40의 (c) 참고) In addition, the direction of the transmission axis (200a) of these reflective polarizing means (200) and the direction of the transmission axis of the absorption polarizing means (100) are parallel to each other. That is, the angle formed by the direction of these transmission axes (200a) (100a) is 0°. (See (c) of Fig. 40)
본 발명의 네 번째 측면에서 이들 투과축(200a)(100a)의 방향이 상호간에 평행한 것은 바람직한 실시예로서 반드시 그러하여야만 하는 것은 아니다. 이에 대해서는 후술한다.In the fourth aspect of the present invention, it is preferred that the directions of the transmission axes (200a) (100a) be parallel to each other, but this is not necessarily the case. This will be described later.
본 발명의 네 번째 측면에 따를 경우, 첫 번째 측면의 경우와 같이, 이들 반사형 편광수단(200)과 흡수형 편광수단(100)은 필름(film)형태의 것이 사용되는 것이 많겠지만, 시트(sheet) 또는 판(plate)형태의 것을 배제하는 것은 아니다.According to the fourth aspect of the present invention, as in the case of the first aspect, the reflective polarizing means (200) and the absorbing polarizing means (100) are often in the form of a film, but those in the form of a sheet or plate are not excluded.
이하에서는 이들 반사형 편광수단(200)과 흡수형 편광수단(100)이 필름형태의 것이 사용되는 경우를 예를 들어 설명한다.Below, an example is given of a case where the reflective polarizing means (200) and the absorbing polarizing means (100) are used in the form of a film.
도 36을 참고로, 도 36의 (a)는 무편광의 태양광(20)이 상기 제2공간(S2)으로부터 상기 투명의 태양광 발전 패널(990)로 인입하여 상기 반사형 편광필름(200)과 흡수형 편광필름(100)을 거쳐 제1공간(S1)에 이르기까지 상기 태양광(20)에 일어나는 여정을 보인다.With reference to FIG. 36, (a) of FIG. 36 shows the journey of unpolarized sunlight (20) as it enters the transparent solar power generation panel (990) from the second space (S2) and passes through the reflective polarizing film (200) and the absorbing polarizing film (100) to reach the first space (S1).
이를 살펴보면, 제2공간(S2)으로부터 무편광의 태양광(20)이 상기 투명의 태양광 발전 패널(990)로 입사되어 이를 통과하여 빛(20')이 되고, 이 빛(20')이 반사형 편광필름(200)을 통과하여 빛(20")가 되고 이 빛(20")이 흡수형 편광필름(100)을 통과하여 빛(20"')이 되어 제1공간(S1)에 이르는 것을 보이며, 이 경로에서 빛(20')은 반사형 편광필름(200)을 통과도 하지만 반사형 편광필름(200)에서 반사도 되어 반사광은 빛(20'R)이 되어 다시 상기 투명의 태양광 발전 패널(990)의 뒷면을 투과하여 제2공간(S2)에 도착하여 빛(20"R)이 된다.In this regard, unpolarized sunlight (20) from the second space (S2) is incident on the transparent solar power generation panel (990), passes through it, becomes light (20'), and this light (20') passes through the reflective polarizing film (200) to become light (20"), and this light (20") passes through the absorbing polarizing film (100) to become light (20"') and reaches the first space (S1). In this path, the light (20') passes through the reflective polarizing film (200), but is also reflected by the reflective polarizing film (200), and the reflected light becomes light (20'R), which again passes through the back of the transparent solar power generation panel (990) to arrive at the second space (S2) and becomes light (20"R).
도 36의 (b)는 도 36의 (a)의 빛이 지나는 동일한 광경로에 대하여 무편광의 빛(10)이 상기 제1공간(S1)으로부터 상기 흡수평 편광필름(100)으로 인입하여 이를 투과하고 상기 반사형 편광필름(200)과 투명의 태양광 발전 패널(990)을 거쳐 제2공간(S2)에 이르기까지 빛(10)에 일어나는 여정을 보이는데, 제1공간(S1)으로부터 무편광의 빛(10)이 상기 흡수형 편광필름(100)으로 입사되어 이를 통과하여 빛(10')이 되고 이 빛(10')이 반사형 편광필름(200)을 통과하여 빛(10")가 되고 이 빛(10")이 상기 투명의 태양광 발전 패널(990)을 통과하여 빛(10"')이 되어 제2공간(S2)에 이르게 된다.FIG. 36 (b) shows the journey of unpolarized light (10) as it passes through the same optical path as that of FIG. 36 (a) as it enters the absorbing polarizing film (100) from the first space (S1), passes through it, passes through the reflective polarizing film (200) and the transparent solar power generation panel (990), and reaches the second space (S2). Unpolarized light (10) from the first space (S1) enters the absorbing polarizing film (100), passes through it, and becomes light (10'), and this light (10') passes through the reflective polarizing film (200) and becomes light (10"), and this light (10") passes through the transparent solar power generation panel (990) and becomes light (10"') and reaches the second space (S2).
도 36에서 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)의 투과축의 방향은 종이면에 수직인 방향으로서 ⊙로 표시되고 있다. 또한 이들의 흡수축(흡수형 편광필름) 또는 반사축(반사형 편광필름)의 방향은 수직의 화살표(↕)로 표시되고 있다.In Fig. 36, the direction of the transmission axis of the reflective polarizing film (200) and the absorbent polarizing film (100) is indicated by ⊙ as a direction perpendicular to the paper surface. In addition, the direction of their absorption axis (absorbent polarizing film) or reflection axis (reflective polarizing film) is indicated by a vertical arrow (↕).
도 36의 (a)를 참고로, 제2공간(S2)으로부터 무편광의 태양광(20)이 상기 투명의 태양광 발전 패널(990)로 입사되어 이것을 투과하게 되며, 상기 투명의 태양광 발전 패널(990)은 발전을 이루게 된다.Referring to (a) of Fig. 36, unpolarized sunlight (20) from the second space (S2) is incident on the transparent solar power generation panel (990) and is transmitted therethrough, and the transparent solar power generation panel (990) generates power.
이렇게 태양광(20)이 상기 투명의 태양광 발전 패널(990)을 투과하여 된 빛(20')은 무편광의 상태로서 상기 반사형 편광필름(200)과 만나게 된다. In this way, the light (20') generated by sunlight (20) passing through the transparent solar power generation panel (990) meets the reflective polarizing film (200) in an unpolarized state.
상기 빛(20')에서 반사형 편광필름(200)의 반사축의 방향(↕)으로 편광된 빛의 성분은 상기 반사형 편광필름(200)에서 반사되어 반사광(20'R)이 되고 반사광(20'R)은 다시 상기 투명의 태양광 발전 패널(990)을 그 뒷면을 통하여 투과하게 되어 재차 상기 투명의 태양광 발전 패널(990)에서 발전을 일으킨다. 상기 반사광(20'R)은 투명의 태양광 발전 패널(990)을 투과하여 빛(20"R)이 되어 제2공간(S2)으로 이르게 된다.The component of light polarized in the direction (↕) of the reflection axis of the reflective polarizing film (200) in the above light (20') is reflected by the reflective polarizing film (200) and becomes reflected light (20'R), and the reflected light (20'R) is transmitted through the back surface of the transparent solar power generation panel (990) to generate electricity again in the transparent solar power generation panel (990). The reflected light (20'R) is transmitted through the transparent solar power generation panel (990) and becomes light (20"R) and reaches the second space (S2).
상기 반사형 편광필름(200)과 만난 상기 빛(20')에서 상기 반사형 편광필름(200)의 투과축의 방향(⊙)으로 편광된 빛의 성분은 상기 반사형 편광필름(200)을 투과하여 빛(20")이 되고, 이후 상기 흡수형 편광필름(100)의 투과축의 방향(⊙)이 상기 반사형 편광필름(200)의 투과축의 방향(⊙)과 평행하므로 상기 빛(20")은 상기 흡수형 편광필름(100)을 투과하여 제1공간(S1)에 이르러 빛(20"')이 된다.The light component polarized in the direction (⊙) of the transmission axis of the reflective polarizing film (200) in the light (20') that meets the reflective polarizing film (200) transmits through the reflective polarizing film (200) and becomes light (20"). Afterwards, since the direction (⊙) of the transmission axis of the absorbent polarizing film (100) is parallel to the direction (⊙) of the transmission axis of the reflective polarizing film (200), the light (20") transmits through the absorbent polarizing film (100) and reaches the first space (S1) and becomes light (20"').
도 36의 (b)를 참고로, 상기 제1공간(S1)에서 출발한 무편광(10)의 빛은 상기 흡수형 편광필름(100)을 투과하면서 상기 흡수형 편광필름(100)의 투과축의 방향(⊙)과 평행한 편광방향을 가지는 빛은 이를 투과하여 빛(10')이 된다. Referring to (b) of Fig. 36, unpolarized light (10) starting from the first space (S1) passes through the absorbent polarizing film (100), and light having a polarization direction parallel to the direction (⊙) of the transmission axis of the absorbent polarizing film (100) passes through it and becomes light (10').
제1공간(S1)으로부터 상기 흡수형 편광필름(100)으로 입사되는 무편광의 빛(10)에서 상기 흡수형 편광필름(100)의 흡수축의 방향과 평행한 방향의 파동의 빛은 상기 흡수형 편광필름(100)을 투과하지 못하고 흡수된다.In the unpolarized light (10) incident from the first space (S1) onto the absorbent polarizing film (100), light of a wave direction parallel to the direction of the absorption axis of the absorbent polarizing film (100) does not pass through the absorbent polarizing film (100) and is absorbed.
상기 빛(10')은 상기 흡수형 편광필름(100)의 투과축의 방향(⊙)과 평행한 편광방향을 가지는 것인데, 상기 반사형 편광필름(200)의 투과축의 방향(⊙)은 상기 흡수형 편광필름(100)의 투과축의 방향(⊙)과 평행하므로, 상기 빛(10')은 상기 반사형 편광필름(200)을 투과하여 빛(10")이 되고 상기 투명의 태양광 발전 패널(990)을 투과하여 빛(10"')이 되어 상기 제2공간(S2)에 이르게 된다.The light (10') above has a polarization direction parallel to the direction (⊙) of the transmission axis of the absorbent polarizing film (100), and since the direction (⊙) of the transmission axis of the reflective polarizing film (200) is parallel to the direction (⊙) of the transmission axis of the absorbent polarizing film (100), the light (10') passes through the reflective polarizing film (200) to become light (10") and passes through the transparent solar power generation panel (990) to become light (10"') and reaches the second space (S2).
따라서 상기 제1공간(S1)에서 상기 제2공간(S2)을 바라보게 되면, 제2공간(S2)에서 기원한 빛(20"')을 보게 되지만, 이 경우, 표면반사를 제외하고 반사광은 없다. Therefore, when looking at the second space (S2) from the first space (S1), light (20"') originating from the second space (S2) is seen, but in this case, there is no reflected light except for surface reflection.
그러므로 제1공간(S1)에서 제2공간(S2)을 바라볼 때 조망은 반사광으로 인하여 방해를 받지 않는다.Therefore, when looking at the second space (S2) from the first space (S1), the view is not obstructed by reflected light.
그러나 상기 반사형 편광필름(200)쪽에서는 반사광(20'R)이 발생하는 것으로서, 상기 제1공간(S1)에서 상기 흡수형 편광필름(100)과 상기 반사형 편광필름(200)을 향하여 출발하였다가 이들 흡수형 편광필름(100)과 반사형 편광필름(200)에서 상기 제1공간(S1)으로 반사되는 빛에 대한 반사율인 제1반사율과 상기 제2공간(S2)에서 상기 투명의 태양광 발전 패널(990)을 투과하여 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)을 향하여 출발하였다가 이들 반사형 편광필름(200)과 흡수형 편광필름(100)에서 상기 투명의 태양광 발전 패널(990)로 반사되는 빛에 대한 반사율인 제2반사율은 서로 다르게 된다. 즉 제2반사율이 제1반사율보다 높게 된다.However, in the case of the reflective polarizing film (200), reflected light (20'R) is generated, and the first reflectivity, which is the reflectivity of light that starts from the first space (S1) toward the absorbent polarizing film (100) and the reflective polarizing film (200) and is reflected from the absorbent polarizing film (100) and the reflective polarizing film (200) to the first space (S1), and the second reflectivity, which is the reflectivity of light that passes through the transparent solar power generation panel (990) in the second space (S2) and starts from the reflective polarizing film (200) and the absorbent polarizing film (100) and is reflected from the reflective polarizing film (200) and the absorbent polarizing film (100) to the transparent solar power generation panel (990), are different from each other. That is, the second reflectivity is higher than the first reflectivity.
이와 같이 되어, 제1공간(S1)에서 제2공간(S2)을 바라 볼 때는 반사광이 최소화되어 조망이 방해를 받지 않게 되는 것이다. In this way, when looking at the second space (S2) from the first space (S1), the reflected light is minimized so that the view is not obstructed.
한편으로, 전술한 바와 같이 상기 반사형 편광필름(200)에서 반사된 반사광(20'R)은 상기 투명의 태양광 발전 패널(990)의 뒷면을 통하여 투과하면서 재차 발전을 일으키게 되어 상기 투명의 태양광 발전 패널(990)의 발전효율을 증가시킨다.On the other hand, as described above, the reflected light (20'R) reflected from the reflective polarizing film (200) transmits through the back surface of the transparent solar power generation panel (990) and generates power again, thereby increasing the power generation efficiency of the transparent solar power generation panel (990).
이와 같이 본 발명의 네 번째 측면은 투명의 태양광 발전 패널(990)의 발전효율을 증대시키면서, 제1공간(S1)에서 제2공간(S2)을 바라 볼 때 반사광으로 인한 조망방해를 일으키지 않도록 하여 잘 보이게 한다.In this way, the fourth aspect of the present invention increases the power generation efficiency of a transparent solar power generation panel (990) while preventing the view from being obstructed by reflected light when looking from the first space (S1) to the second space (S2), thereby making it visible.
본 발명의 네 번째 측면에 따를 경우에도 첫 번째 측면의 경우와 같이, 상기 제1공간(S1)과 제2공간(S2)의 경계에는 빛이 투과하는 수단이 위치하고, 상기 투명의 태양광 발전 패널(990)과 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)은 상기 빛이 투과하는 수단에 배치될 수 있다.Even in accordance with the fourth aspect of the present invention, as in the case of the first aspect, a means for transmitting light is positioned at the boundary between the first space (S1) and the second space (S2), and the transparent solar power generation panel (990), the reflective polarizing film (200), and the absorptive polarizing film (100) can be arranged on the means for transmitting light.
첫 번째 측면에서 상기 빛이 투과하는 수단의 예로서 투명창(W) 또는 빈 공간을 들었는데, 본 네 번째 측면에 따른 실시예에서는 투명창(W)에 상기 투명의 태양광 발전 패널(990)과 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)이 배치되는 예를 보이기로 한다.In the first aspect, a transparent window (W) or an empty space was mentioned as an example of a means through which the light transmits, and in the embodiment according to the fourth aspect, an example in which the transparent solar power generation panel (990), the reflective polarizing film (200), and the absorptive polarizing film (100) are arranged in the transparent window (W) will be shown.
물론 첫 번째 측면과 같이 상기 빛이 투과하는 수단은 빈 공간이 될 수 있다. 즉 도 3의 건물(9)을 참고로, 건물(9)의 외벽에 뚫린 공간(미도시)을 형성할 수 있으며, 이곳에 본 발명에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(4000)을 설치할 수 있는 것이다. 이와 같이, 어떠한 공간에 투명창(W) 등 빛이 투과하는 특정한 매질을 설치하지 않고 본 발명의 네 번째 측면에 따른 양쪽 공간을 향한 반사율이 서로 다른 편광시스템(4000)을 설치할 수도 있는 것이다.Of course, as in the first aspect, the means through which the light transmits may be an empty space. That is, referring to the building (9) of Fig. 3, a space (not shown) perforated in the outer wall of the building (9) may be formed, and a polarizing system (4000) having different reflectivities toward both spaces according to the present invention may be installed therein. In this way, a polarizing system (4000) having different reflectivities toward both spaces according to the fourth aspect of the present invention may be installed in a space without installing a specific medium through which light transmits, such as a transparent window (W).
도 38과 도 39는 건물(9)의 외벽에 설치되는 투명창(W)에 대하여 본 발명의 네 번째 측면에 따른 양쪽공간을 향한 반사율이 서로 다른 편광시스템(4000)이 설치된 예를 보인다.Figures 38 and 39 show examples of a polarizing system (4000) having different reflectances toward both spaces according to the fourth aspect of the present invention installed on a transparent window (W) installed on the exterior wall of a building (9).
먼저 도 38을 참고로, 건물(9)의 외부공간이 태양광이 제공되는 제2공간(S2)을 이루고, 건물(9)의 내부가 상기 흡수형 편광수단(100)과 상기 반사형 편광수단(200)과 상기 투명의 태양광 발전 패널(990)을 통하여 상기 제2공간(S2)을 바라보는 공간인 제1공간(S1)을 이루게 된다.First, referring to Fig. 38, the exterior space of the building (9) forms a second space (S2) where sunlight is provided, and the interior of the building (9) forms a first space (S1) which is a space that views the second space (S2) through the absorption-type polarization means (100), the reflection-type polarization means (200), and the transparent solar power generation panel (990).
도 39를 참고로, 상기 투명창(W)의 제2공간을 향한 면(W12)에 투명의 태양광 발전 패널(990)이 설치되고, 상기 투명창(W)의 제1공간(S1)을 향한 면(W11)에 상호간에 부착된 반사형 편광필름(200)과 흡수형 편광필름(100)이 부착되어 있다.Referring to Fig. 39, a transparent solar power generation panel (990) is installed on a surface (W12) of the transparent window (W) facing the second space, and a reflective polarizing film (200) and an absorptive polarizing film (100) are attached to each other on a surface (W11) of the transparent window (W) facing the first space (S1).
도 38과 도 39에서 보이는 투명의 태양광 발전 패널(990)과 반사형 편광필름(200)과 흡수형 편광필름(100)의 투명창(W)과 관련된 배치는 이들이(990)(100)(200)이 보호되기 좋은 환경을 택한 것으로서 실시예를 보인 것에 지나지 않으며, 본 발명에 따른 조건하에서 자유롭게 이들(990)(100)(200)을 배치할 수 있다.The arrangement of the transparent solar power generation panel (990) and the reflective polarizing film (200) and the absorptive polarizing film (100) in relation to the transparent window (W) shown in FIGS. 38 and 39 is merely an example of an environment in which these (990) (100) (200) are well protected, and these (990) (100) (200) can be freely arranged under the conditions according to the present invention.
또한 도 38과 도 39에서는 투명창(W) 등에 부착하여 고정하는 방법이 도시가 되어 있으나, 부착하여 고정하지 아니하고 블라인드나 롤스크린 형태로 하여 이들 필름의 설치와 제거를 자유롭게 할 수도 있는데 본 발명은 이러한 경우를 포함한다.In addition, in FIGS. 38 and 39, a method of attaching and fixing the film to a transparent window (W) or the like is illustrated, but instead of attaching and fixing the film, it may be installed and removed freely in the form of a blind or roller screen, and the present invention includes such a case.
또한, 도 38과 도 39에서는 투명창(W)의 전면에 투명의 태양광 발전 패널(990)과 반사형 편광필름(200)과 흡수형 편광필름(100)이 설치된 것을 보이고 있으나, 필요한 일부분의 영역에만 설치하는 것도 얼마든 가능함은 물론이다.In addition, FIGS. 38 and 39 show that a transparent solar power generation panel (990), a reflective polarizing film (200), and an absorptive polarizing film (100) are installed on the front of the transparent window (W), but it is of course possible to install them only in a necessary portion of the area.
본 발명의 바람직한 실시예의 경우, 전술한 바와 같이, 도 40의 (c)를 참고로, 반사형 편광수단(200)과 흡수형 편광수단(100)의 투과축(200a)(100a)의 방향이 서로 평행을 이루고 있다.In a preferred embodiment of the present invention, as described above, with reference to (c) of FIG. 40, the directions of the transmission axes (200a) (100a) of the reflective polarizing means (200) and the absorbing polarizing means (100) are parallel to each other.
도 40을 참고로, 상기 반사형 편광필름(200)과 상기 흡수형 편광필름(100)의 투과축(200a)(100a)의 방향이 상호간에 이루는 각도(θ3)가 증가함에 따라, 첫 번째 측면에서 전술한 바와 같이, 제1공간(S1)을 향한 반사광의 세기는 증가하고 이들 반사형 편광필름(200)과 상기 흡수형 편광필름(100)을 투과하는 빛의 세기는 줄어들게 된다.With reference to FIG. 40, as the angle (θ3) formed between the directions of the transmission axes (200a) (100a) of the reflective polarizing film (200) and the absorbent polarizing film (100) increases, as described above in the first aspect, the intensity of the reflected light toward the first space (S1) increases and the intensity of the light transmitting through the reflective polarizing film (200) and the absorbent polarizing film (100) decreases.
한편으로 반사형 태양광 발전 패널(990)로 반사되는 반사광(20'R)의 세기는 이들 반사형 편광필름(200)과 흡수형 편광필름(100)의 투과축(200a)(100a)의 방향이 이루는 각도(θ3)에 영향을 받는 것은 아니다.On the other hand, the intensity of the reflected light (20'R) reflected by the reflective solar power generation panel (990) is not affected by the angle (θ3) formed by the direction of the transmission axis (200a) (100a) of the reflective polarizing film (200) and the absorbing polarizing film (100).
따라서 상기 반사형 태양광 발전 패널(990)의 발전효율을 증대시키면서 제1공간(S1)으로부터 제2공간(S2)을 보는 조망을 좋게 하는 것을 고려할 때, 흡수형 편광수단(100)의 투과축(100a)의 방향과 반사형 편광수단(200)의 투과축(200a)의 방향은 상호간에 평행을 이루는 경우가 가장 바람직하다고 할 것이다.Therefore, when considering improving the view from the first space (S1) to the second space (S2) while increasing the power generation efficiency of the reflective solar power generation panel (990), it is most desirable that the direction of the transmission axis (100a) of the absorption-type polarizing means (100) and the direction of the transmission axis (200a) of the reflective polarizing means (200) be parallel to each other.
그러나 상기 각도(θ3)가 일정 범위 내에 있을 때, 비록 제1공간(S1)을 향한 반사광의 세기는 일부 증가하고 이들 반사형 편광필름(200)과 상기 흡수형 편광필름(100)을 투과하는 빛의 세기는 줄어들더라도 그 정도의 악화는 수용가능할 수 있을 것이다.However, when the above angle (θ3) is within a certain range, even if the intensity of the reflected light toward the first space (S1) increases somewhat and the intensity of the light passing through the reflective polarizing film (200) and the absorptive polarizing film (100) decreases, the degree of deterioration may be acceptable.
즉 반드시 상기 각도(θ3)가 0°를 이룰 것은 아니라 할 것이며, 일정 범위에서 상황에 맞추어 수용 가능한 범위에서 상기 각도(θ3)를 정할 수 있을 것이다.In other words, the angle (θ3) does not necessarily have to be 0°, and the angle (θ3) can be set within an acceptable range according to the situation within a certain range.
발명자가 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 이루는 각도(θ3)를 조정해가면서 행한 육안관찰에 의한 실험에 의하면, 흡수형 편광수단(100)과 반사형 편광수단(200)의 투과축(100a)(200a)의 방향이 상호간에 평행을 이룰 때 이들이 이루는 각도(θ3)를 0°로 잡으면 이로부터 +10° 또는 -10°까지의 범위(+10°와 -10°포함)에서는 투과광이 줄어드는 것에 비하여 제1반사광은 그리 커지지 않아서 제1공간(S1)에서 제2공간(S2)을 조망하는 것에 큰 문제가 발생하지 아니하였다.According to an experiment conducted by the inventor through visual observation while adjusting the angle (θ3) formed by the directions of the transmission axes (100a) (200a) of the absorption-type polarization means (100) and the reflection-type polarization means (200), when the directions of the transmission axes (100a) (200a) of the absorption-type polarization means (100) and the reflection-type polarization means (200) are parallel to each other, and when the angle (θ3) formed by them is set to 0°, the first reflected light does not increase much compared to the transmitted light that decreases in the range from this to +10° or -10° (including +10° and -10°), so there is no major problem in viewing the second space (S2) from the first space (S1).
따라서 본 발명의 네 번째 측면에서 상기 반사형 편광필름(200)과 흡수형 편광필름(100)의 투과축(200a)(100a)의 방향이 이루는 각도(θ3)는 +10° 또는 -10°까지의 범위(+10°와 -10°포함)에 있는 것을 포함한다.Therefore, in the fourth aspect of the present invention, the angle (θ3) formed by the direction of the transmission axis (200a) (100a) of the reflective polarizing film (200) and the absorptive polarizing film (100) includes a range of up to +10° or -10° (inclusive of +10° and -10°).
이와 같이 본 발명은 양쪽의 공간을 향한 반사율이 서로 다른 편광시스템(1000)(2000)(3000)(4000)을 제공하는데, 이러한 본 발명은 다양하게 적용되어 다양한 작용효과를 창출할 수 있다. In this way, the present invention provides a polarization system (1000)(2000)(3000)(4000) having different reflectivities toward the space on both sides, and the present invention can be applied in various ways to create various operational effects.
즉 프라이버시(privacy) 보호를 위하여 시선을 차단하면서 반대방향으로의 조망은 반사광으로 방해받지 않도록 할 수 있다. That is, to protect privacy, the line of sight can be blocked, while the view in the opposite direction can be prevented from being obstructed by reflected light.
또한, 상기 반사형 편광수단(200)과 상기 흡수형 편광수단(100)에 대하여 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지도록 하며, 또한, 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분들이 상호간에 겹치도록 배치함으로써, 제1공간(S2)에서 제2공간(S2)을 바라볼 때, 그리고 제2공간(S2)에서 제1공간(S1)을 바라볼 때 그 형태와 반사가 다르게 나타나는 독특한 효과를 얻을 수 있게 되는 것이다.In addition, one or both of the reflective polarizing means (200) and the absorptive polarizing means (100) have a specific shape for decoration, advertising, or information transmission, and by positioning one of them within the area of the other or arranging the respective parts to overlap each other, a unique effect can be obtained in which the shape and reflection appear differently when looking at the second space (S2) from the first space (S2), and when looking at the first space (S1) from the second space (S2).
이러한 경우에서, 제2공간을 향하는 반사형 편광수단(200)은 빛의 반사로 제2공간(S2)에서 바라보았을 때 높은 시인성을 가지지만, 흡수형 편광수단(100)과 반사형 편광수단(200)이 겹치는 곳에서는 이를 통하여 제1공간(S1)에서 제2공간(S2)을 바라보는 조망에는 아무런 장애가 없다.In this case, the reflective polarizing means (200) facing the second space has high visibility when viewed from the second space (S2) due to the reflection of light, but in the place where the absorption polarizing means (100) and the reflective polarizing means (200) overlap, there is no obstruction in the view from the first space (S1) to the second space (S2).
한편, 이러한 경우에 있어서, 제1공간(S1)과 제2공간(S2)의 조도가 역전하게되면 그 장식, 광고 또는 정보전달을 위한 특정한 형태가 사라지거나 변화하게 되는 효과도 더불어 나타나게 된다.Meanwhile, in such cases, when the illuminance of the first space (S1) and the second space (S2) are reversed, the effect of a specific form for decoration, advertisement, or information transmission disappearing or changing also appears.
나아가서, 본 발명은 관찰실과 조사실에 적용되어 조사실의 피조사자는 관찰실을 볼 수 없지만 조사실의 조사자는 관찰실을 볼 수 있으며, 조사실의 조명에 의한 직사광선이 관찰실에 도달하지 않게 하여 관찰자는 조명의 방해를 받지 않고 더욱 조사실을 잘 관찰할 수 있게 된다.Furthermore, the present invention is applied to an observation room and an investigation room, so that a subject in the investigation room cannot see the observation room, but an investigator in the investigation room can see the observation room, and direct sunlight from the lighting in the investigation room is prevented from reaching the observation room, so that an observer can observe the investigation room better without being disturbed by the lighting.
한편, 본 발명은 컬러편광수단(900)을 추가적으로 가지는 경우를 제시하며, 이러한 경우, 제2공간(S2)에서 바라보았을 때 컬러를 띠게 되며, 컬러편광수단(90)과 반사형 편광수단(200)에 대하여 어느 하나 또는 양자가 장식, 광고 또는 정보전달을 위한 특정한 형태를 가지도록 하며, 또한, 어느 하나가 다른 하나의 면적의 내부에 위치하거나, 각각의 부분들이 상호간에 겹치도록 배치함으로써, 제1공간(S2)에서 제2공간(S2)을 바라볼 때, 그리고 제2공간(S2)에서 제1공간(S1)을 바라볼 때 그 형태와 컬러와 반사가 다르게 나타나는 독특한 효과를 얻을 수 있게 된다.Meanwhile, the present invention proposes a case in which a color polarizing means (900) is additionally provided, and in this case, when viewed from a second space (S2), it has color, and one or both of the color polarizing means (90) and the reflective polarizing means (200) have a specific shape for decoration, advertising, or information transmission, and further, by positioning one of them within the area of the other or arranging the respective parts to overlap each other, a unique effect can be obtained in which the shape, color, and reflection appear differently when the second space (S2) is viewed from the first space (S2), and when the first space (S1) is viewed from the second space (S2).
이러한 경우에서, 제2공간(S2)을 향하는 컬러편광수단(900)은 컬러를 가지는 반사광으로 제2공간(S2)에서 바라보았을 때 높은 시인성과 미감을 창출할 수 있게 하지만, 이들 컬러편광수단(900)과 반사형 편광수단(200)이 겹치는 곳에서는 이를 통하여 제1공간(S1)에서 제2공간(S2)을 바라보는 조망은 방해받지 않는다.In this case, the color polarizing means (900) facing the second space (S2) can create high visibility and aesthetics when viewed from the second space (S2) with the reflected light having color, but in the place where these color polarizing means (900) and the reflective polarizing means (200) overlap, the view from the first space (S1) to the second space (S2) is not obstructed.
나아가서, 본 발명은 제1공간과 제2공간의 사이에 설치되는 투명의 태양광 발전 패널과 관련되어 제1공간으로부터 상기 투명의 태양광 발전 패널을 투과하는 빛에 더하여 상기 투명의 태양광 발전 패널의 뒷면으로 반사광이 투과되도록 하여 발전효율을 높이면서, 제1공간에서 제2공간을 바라볼 때 반사광으로 인한 조망의 방해를 일으키지 않도록 한다.Furthermore, the present invention relates to a transparent solar power generation panel installed between a first space and a second space, and increases power generation efficiency by allowing reflected light to be transmitted through the back of the transparent solar power generation panel in addition to light passing through the transparent solar power generation panel from the first space, while preventing the view from being obstructed by reflected light when looking at the second space from the first space.
Claims (60)
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| KR10-2024-0057017 | 2024-04-29 | ||
| KR20240057017 | 2024-04-29 | ||
| KR10-2024-0090530 | 2024-07-09 | ||
| KR1020240090530A KR20250157907A (en) | 2024-04-29 | 2024-07-09 | Polarization system where reflectivity towards each space is different from each other |
| KR10-2025-0053746 | 2025-04-24 | ||
| KR20250053746 | 2025-04-24 |
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| PCT/KR2025/005576 Pending WO2025230222A1 (en) | 2024-04-29 | 2025-04-24 | Polarization system having different reflectivities toward both spaces |
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| JP2011507016A (en) * | 2007-12-05 | 2011-03-03 | カン ヴィー コーク | Reflective unidirectional screen with colored and transparent areas |
| US20200333644A1 (en) * | 2018-01-10 | 2020-10-22 | Alphamicron Incorporated | Switchable one-way mirror |
| JP2021002071A (en) * | 2016-12-23 | 2021-01-07 | エルジー・ケム・リミテッド | Variable reflectivity mirror |
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| JP4279804B2 (en) * | 2004-06-25 | 2009-06-17 | 須永 香織 | A structure using a polarizing plate |
| JP2011507016A (en) * | 2007-12-05 | 2011-03-03 | カン ヴィー コーク | Reflective unidirectional screen with colored and transparent areas |
| KR101016000B1 (en) * | 2008-12-22 | 2011-02-23 | 주식회사 엘엠에스 | Solar cell module using reflective polarizing film |
| JP2021002071A (en) * | 2016-12-23 | 2021-01-07 | エルジー・ケム・リミテッド | Variable reflectivity mirror |
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