CN218825097U - Camera lens protection component and shooting equipment - Google Patents

Abstract

The application provides a lens protection assembly and a shooting device, wherein the lens protection assembly includes a first lens, a second lens and a connector; the second lens is located on one side of the first lens, and the second lens is spaced apart from the first lens , the connecting piece connects the first lens and the second lens respectively, so as to cooperate with the first lens and the second lens to form a sealed cavity, and the heat conduction efficiency of the sealed cavity is lower than that of the first lens and the second lens. The present application reduces the transfer efficiency of heat between the first lens and the second lens by forming a sealed cavity, so that the temperature of the lens on the side close to the lens is close to the temperature inside the shooting device, which can prevent the hot air inside the shooting device from flowing toward the lens. Fogging occurs on the sides of the lens.

Description

A lens protection component and shooting equipment

technical field

The present application relates to the field of image technology, in particular to a lens protection assembly and a shooting device.

Background technique

A shooting device (such as a camera) is a device that uses the principle of optical imaging to form an image and uses a film to record the image. It is an optical device used for photography.

The shooting equipment usually has a protective glass for the lens (the outside of the protective glass is the external environment). During the use of the shooting equipment, due to the work of the internal components (such as CMOS sensors) of the camera body, there will be a temperature difference between the inside of the shooting equipment and the external environment. It is easy to cause fogging of the protective glass, which will block the lens and affect the shooting effect. For example, the temperature of the low-temperature protective glass is lower than the temperature of the air between the protective glass and the shooting equipment, resulting in fogging of the protective glass.

Utility model content

The purpose of this application is to propose a lens protection assembly and a shooting device, aiming at solving the problem in the prior art that the protective glass of the shooting device is prone to fogging.

In the first aspect, the embodiment of the present application provides a lens protection assembly, which is suitable for shooting equipment, and the lens protection assembly includes: a first lens; a second lens, the second lens is located on one side of the first lens, The second lens is spaced apart from the first lens; a connecting piece, the connecting piece connects the first lens and the second lens respectively, so as to cooperate with the first lens and the second lens to form a seal cavity, wherein the sealed cavity has a lower heat conduction efficiency than the first and second lenses.

In one embodiment, the connecting piece is sandwiched between the first lens and the second lens, and the connecting piece is arranged along the contour of the first lens or the second lens to match The first lens and the second lens form the sealed cavity.

In one embodiment, the sealed cavity is filled with heat-insulating gas;

And/or, the sealed cavity is filled with air;

And/or, the inside of the sealed cavity is in a vacuum state.

In one embodiment, the surface of the first lens facing away from the second lens is sequentially provided with an optical film and a waterproof and anti-fog film from the inside to the outside;

And/or, the surface of the second lens facing away from the first lens is sequentially provided with an optical film and a waterproof and anti-fog film from inside to outside.

In one embodiment, the material of the first lens is glass;

And/or, the material of the second lens is glass.

In one embodiment, the photographing device includes a lens module, and the lens module is close to the second lens;

The thickness of the second lens is less than or equal to the thickness of the first lens:

And/or, the strength of the second lens is less than or equal to the strength of the first lens.

In one embodiment, the connecting part is an adhesive part, and the adhesive part is bonded and fixed to the first lens and the second lens respectively.

In one embodiment, the glue is waterproof glue; and or, the glue is cushioning glue.

In the second aspect, the embodiment of the present application provides a shooting device, including:

a housing, the housing is provided with an installation cavity;

a lens module, the lens module is arranged in the installation cavity; and

As well as the above-mentioned lens protection assembly, the lens protection assembly is arranged on the housing and corresponding to the lens module.

In one embodiment, the lens protection assembly is bonded to the housing; or, the housing includes a mounting portion, the lens protection assembly includes a matching portion, and the matching portion is used to be detachable from the mounting portion connect.

In a third aspect, the embodiment of the present application provides a photographing device, comprising: a casing, the casing is provided with a mounting groove; a first lens; a second lens, the second lens is located on one side of the first lens, The second lens is spaced apart from the first lens; and a connecting piece, the connecting piece is used for connecting the first lens and the installation groove, and the connecting piece is also used for connecting the second lens and the The mounting groove is adapted to cooperate with the first lens, the second lens and the inner wall of the mounting groove to form a sealed cavity, wherein the heat conduction efficiency of the sealed cavity is lower than that of the first lens and the second lens.

In the lens protection assembly of the present application, the first lens and the second lens are spaced apart, the first lens and the second lens are connected by a connecting piece (such as an adhesive piece), and the first lens and the second lens are matched to form a seal. Cavity, by forming a sealed cavity to reduce the heat transfer efficiency between the first lens and the second lens, so that the temperature of the lens on the side close to the lens is close to the temperature inside the shooting device, which can prevent the hot air inside the shooting device from moving toward the lens The sides generate fog.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 shows a schematic structural diagram of a lens protection assembly according to an embodiment of the present invention.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a sectional view taken along line A-A of Fig. 2 .

Fig. 4 shows a schematic structural diagram of a mounting part of a photographing device, wherein a lens protection assembly is mounted on the mounting part in the figure.

Fig. 5 is a sectional view taken along line B-B of Fig. 4 .

Manual reference signs:

100. Lens protection component; 10. First lens; 20. Second lens; 30. Sealing cavity; 40. Connecting piece; 200. Cooperating part; 300. Lens module.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, are only for explaining the present application, and should not be construed as limiting the present application.

In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described implementations are only some of the implementations of this application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by those skilled in the art without creative efforts shall fall within the scope of protection of this application.

The utility model provides a lens protection assembly 100, the lens protection assembly can be set on the shooting equipment (not shown in the figure) to protect the lens from collisions and scratches during use, and to solve the temperature difference between the lens and the shooting equipment, resulting in The problem of fogging of the lens protection assembly.

Referring to FIGS. 1 to 3 , the lens protection assembly 100 includes a first lens 10 , a second lens 20 and a connecting piece 40 . Wherein, the second eyeglass 20 is positioned at one side of the first eyeglass 10, and the second eyeglass 20 and the first eyeglass 10 are arranged at intervals, and the first eyeglass 10 and the second eyeglass 20 that are arranged at an interval can avoid the first eyeglass 10 and the second eyeglass 20 Direct contact heat transfer, the connector cooperates with the first lens 10 and the second lens 20 to form a sealed cavity 30, the heat conduction efficiency of the sealed cavity is lower than that of the first lens 10 and the second lens 20, thereby reducing heat The transmission efficiency between the first lens 10 and the second lens 20 is to solve the fogging problem caused by the temperature difference between the lens protection assembly 100 and the shooting device due to the temperature difference between the external environment and the inside of the shooting device. Compared with the traditional single-layer lens protection assembly, the lens protection assembly 100 provided by the utility model can reduce the heat transfer efficiency between the first lens 10 and the second lens 20, and can avoid the first lens of the lens protection assembly 100 10 and the surface of the second lens 20 are fogged. Wherein, the thermal conduction efficiency of the sealed cavity 30 is lower than that of the first lens 10 and the second lens 20 may refer to: the entire cavity jointly formed by the first lens 10, the second lens 20 and the connecting piece 40, and the cavity inside the cavity The overall thermal conductivity of the filling medium (if there is, such as air or other heat-insulating gas, if not, for example, the cavity is in a vacuum state) is lower than the thermal conductivity of the materials of the first lens 10 and the second lens 20 .

For example, referring to FIG. 3 , taking the second lens 20 disposed on the side close to the lens module 300 as an example, since the thermal conductivity of the sealed cavity 30 is low, the temperature of the second lens 20 on the side close to the lens will not vary with the temperature. With the change of the external environment temperature, it changes greatly, but as the temperature inside the shooting device changes, the temperature is close to the temperature of the shooting device, which can prevent the hot air of the shooting device from generating fog on the side of the second lens 20 facing the lens. Similarly, the temperature of the first lens 10 away from the lens module 300 is close to the temperature of the external environment, which can prevent the cold air in the environment from generating fog on the side of the first lens 10 away from the lens. Wherein, due to the electronic devices in the shooting device, such as the reason of the CMOS sensor heating, the temperature in the shooting device is higher than the temperature of the external environment, therefore, the gas (such as air) in the shooting device is regarded as hot gas, and the gas in the external environment is regarded as hot gas. Gases such as air are considered cold.

Please refer to FIG. 3 , in some embodiments, the connector 40 is sandwiched between the first lens 10 and the second lens 20, and the connector 40 is arranged along the contour of the first lens 10 or the second lens 20 to match The first lens 10 and the second lens 20 form a sealed cavity 30, that is, the connecting member 40 is disposed between the first lens 10 and the second lens 20 and near the edge of the first lens 10 or the second lens 20, and It forms a hollow ring, cooperates with the first lens 10 and the second lens 20 to form a hollow cylinder, and the inner space of the main body is the sealed cavity 30 .

In this embodiment, the connection piece 40 is arranged close to the edge of the first lens 10 or the second lens 20 to increase the volume of the sealed cavity 30, to improve the heat insulation effect between the first lens 10 and the second lens 20, and to prevent the The hot air in the lens contacts the lens far away from the lens (the lens temperature is relatively low) to produce fog.

In addition, compared to the fact that the first lens 10 and the second lens 20 are respectively mounted on the casing, and the casing forms an installation cavity (refer to the explanation on the inner wall of the installation groove of the second topic "photographing equipment" below), this embodiment is due to the connection of the connecting piece 40 to the second A lens 10 or a second lens 20 forms the sealed cavity, so that the first lens 10, the second lens 20 and the connecting piece 40 can be produced as an independent component and directly replace the traditional single-layer lens protection component.

Referring to FIG. 3 , in some embodiments, the sealed cavity 30 is filled with insulating gas. For example, one or more combinations of carbon dioxide, methane, argon, and krypton. Compared with ordinary gas, the thermal conductivity of heat insulating gas is lower, which can increase the heat insulation effect.

Please refer to FIG. 3 , in some embodiments, the sealed cavity is filled with air. The air is ambient air, so during the production process of the lens protection assembly 100, no special filling is required, thereby reducing production difficulty, and the air is dry air.

Please refer to FIG. 3 , in some embodiments, the inside of the sealed chamber 30 is in a vacuum state. Since the vacuum has a better heat insulation effect, the vacuum state in the sealed cavity 30 can further improve the heat insulation effect between the first lens 10 and the second lens 20, and the vacuum can reduce the water vapor in the sealed cavity, avoiding the inner wall of the cavity. Fog is produced.

In some embodiments, the surface of the first lens 10 facing away from the second lens 20 is sequentially provided with an optical film (not shown) and a waterproof and anti-fog film (not shown) from inside to outside. The optical film can improve the optical efficiency of the first lens 10 and reduce stray light, and the composition of the optical film includes but not limited to magnesium fluoride, silicon dioxide, aluminum fluoride and the like.

The waterproof and anti-fog film is arranged on the outside of the optical film, which can prevent fog and fingerprints from being produced on the outside of the first lens 10 .

In some embodiments, the surface of the second lens 20 facing away from the first lens 10 is sequentially provided with an optical film (not shown) and a waterproof and anti-fog film (not shown) from inside to outside. The optical film can improve the optical efficiency of the second lens 20 and reduce stray light, and the composition of the optical film includes but not limited to magnesium fluoride, silicon dioxide, aluminum fluoride and the like.

The waterproof and anti-fog film is arranged on the outside of the optical film, which can prevent fog and fingerprints from being produced on the outside of the second lens 20 .

In some embodiments, the material of the first lens 10 is glass, and the first lens 10 made of glass has a higher light transmittance, which can reduce the influence of the first lens 10 on light entering the lens. Certainly, in other embodiments, the material of the first lens 10 may also be polycarbonate or polymethyl methacrylate.

The material of the second lens 20 is glass, and the second lens 20 made of glass has a higher light transmittance, which can reduce the influence of the second lens 20 on the light entering the lens. Certainly, in other embodiments, the material of the second lens 20 may also be polycarbonate or polymethyl methacrylate.

Please refer to FIG. 3 , in some embodiments, the photographing device includes a lens module 300 , and the lens module 300 is close to the second lens 20 . The thickness of the second lens 20 is less than or equal to the thickness of the first lens 10 . Because when the lens protection assembly 100 is installed on the shooting device, the second lens 20 is arranged on the inner side (relative to the external environment), and will not be squeezed and broken by the outside world, so the thickness of the second lens 20 can be appropriately reduced to The light transmittance of the lens protection assembly 100 is improved.

Please refer to FIG. 3 , in some embodiments, the photographing device includes a lens module 300 , and the lens module 300 is close to the second lens 20 . The strength of the second lens 20 is less than or equal to the strength of the first lens 10 . Since the second lens 20 is arranged on the inner side (relative to the external environment) when the lens protection assembly is installed on the shooting device, it will not be scratched and scratched by the outside world, so the strength of the second lens 20 is appropriately reduced to reduce the lens protection. The production cost of the component 100.

Please refer to FIG. 3 , in some embodiments, the connecting part 40 is an adhesive part, and the adhesive part is bonded and fixed to the first lens 10 and the second lens 20 respectively. Among them, the adhesive parts may refer to adhesive products such as double-sided tape and glue. Using glue to bond the first lens 10 and the second lens 20 has the effect of facilitating assembly.

Further, the glue part is waterproof glue. The waterproof glue can prevent the external environment or water vapor inside the shooting device from entering the sealed cavity 30 . Waterproof adhesive refers to any adhesive with bonding and waterproof functions, such as waterproof double-sided adhesive.

Further, the glue part is shock-absorbing glue. The shock-absorbing glue slows down the impact of the external force on the second lens, and protects the second lens whose strength and/or thickness is lower than that of the first lens. Cushioning glue refers to any glue with bonding and waterproof functions, such as double-sided tape.

The utility model also provides a shooting device, please refer to FIG. 3 to FIG. 5 , the shooting device includes a housing (not shown), a lens protection assembly 100 and a lens module 300 . The housing surrounds and forms the installation cavity. The lens protection assembly 100 is disposed in the installation cavity of the casing. The specific structure of the lens protection assembly 100 can be referred to above, and the specific structure thereof will not be described in detail herein. The photographing device may also include components such as a processor and a sensor, which are not limited here.

The lens module 300 is used to cooperate with other devices such as image sensors to take photos or record videos. The lens module 300 is arranged in the installation cavity, and the lens module 300 is correspondingly arranged with the lens protection assembly 100, so that the lens protection assembly 100 can be protected. The lens module 300 in the cavity, meanwhile, the light passing through the lens protection assembly 100 can enter the lens module 300 .

In some embodiments, the lens protection assembly 100 is bonded to the casing; in this embodiment, the integrity of the shooting device is improved through bonding.

For example, a region matching the edge of the lens or frame (if any) of the lens guard assembly 100 is provided on the housing, and then the lens guard assembly 100 is bonded to this area by glue or double-sided tape to be fixedly connected to the housing. For another example, the housing is provided with a mounting groove, the shape of which is adapted to the lens protection assembly 100 , and the lens protection assembly 100 is embedded in the mounting groove and bonded by glue or double-sided tape. The lens guard assembly can be flush with the outer surface of the housing, or be recessed in the outer surface of the housing, so as to prevent the lens guard assembly 100 from being scratched and affecting shooting.

Referring to FIG. 4 and FIG. 5 , in some embodiments, the housing includes a mounting portion, and the lens protection assembly 100 includes a matching portion 200 for detachably connecting with the mounting portion.

Specifically, the mating portion 200 is used to provide mounting attachment for the first lens 10 and the second lens 20 . In this embodiment, the matching part 200 is approximately cylindrical and its shape is adapted to the first lens 10 and the second lens 20 , and the first lens 10 and the second lens 20 are connected to the matching part by clamping or bonding.

For example, the installation part on the housing is a through hole, and the shape is adapted to the matching part 200 . The matching part 200 on which the first lens 10 and the second lens 20 are mounted is detachably mounted on the housing through the mounting part by means of a plunger.

In other embodiments, the detachable connection between the matching part 200 and the installation part includes but not limited to screw connection and clamping connection (such as locking connection). The realization of the screw connection between the fitting part 200 and the mounting part is generally as follows: an external thread is provided on the outer edge of the fitting part 200, an internal thread is provided on the side wall of the mounting part, and the first lens 10 and the second lens 20 are installed The mating portion 200 is screwed into the mounting portion to form a detachable connection.

The clamping method between the fitting part 200 and the mounting part is generally as follows: a buckle is provided on the side wall of the mounting part, and when the fitting part 200 with the first lens 10 and the second lens 20 installed is inserted into the fitting part, the buckle is locked. Cooperating part 200 .

The utility model also provides a photographing device, and the photographing device may also include a processor, a sensor, a lens module 300 and other devices, which are not limited here.

The shooting device also includes a casing, the casing is provided with a mounting groove, a first lens 10 and a second lens 20, the second lens 20 is located on one side of the first lens 10, the second lens 20 is connected to the The first lens 10 is arranged at intervals; and a connecting piece 40, the connecting piece 40 is used to connect the first lens 10 and the installation groove, and the connecting piece 40 is also used to connect the second lens 20 and the The installation groove is used to cooperate with the first lens 10, the second lens 20 and the inner wall of the installation groove to form a sealed cavity 30, wherein the heat conduction efficiency of the sealed cavity 30 is lower than that of the first lens 10 and the second lens 10. Two mirrors 20.

Wherein, the specific structure of the connecting member 40 can refer to the above-mentioned embodiment, and the arrangement of the inner space of the sealed cavity 30 can also refer to the above-mentioned embodiment.

In this embodiment, the shape of the mounting groove can match the shape of the first lens 10 and the second lens 20, and then the first lens 10 and the second lens 20 are sealed with the connecting piece 40 (such as glue or double-sided tape). installed in the mounting groove. The specific installation method is not limited, as long as there is a sealed cavity 30 between the first lens 10 and the second lens 20 to prevent the hot air in the shooting device and the cold air from the external environment from entering the space between the first lens 10 and the second lens 20 That's it.

In addition, descriptions of the terms "some embodiments", "other embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this application, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in the present application without conflicting with each other.

The above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still apply to the foregoing embodiments Modifications to the technical solutions recorded, or equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the application, and should be included in this application. within the scope of protection.

Claims (11)

1. The utility model provides a lens protection component, is applicable to and shoots equipment which characterized in that includes:

a first lens;

the second lens is positioned on one side of the first lens, and the second lens and the first lens are arranged at intervals;

the connecting piece is respectively connected with the first lens and the second lens to be matched with the first lens and the second lens to form a sealed cavity, wherein the heat conduction efficiency of the sealed cavity is lower than that of the first lens and the second lens.

2. The lens guard assembly of claim 1, wherein the connector is sandwiched between the first and second lenses and is configured to follow a contour of the first or second lens to mate with the first and second lenses to form a sealed cavity.

3. The lens guard assembly of claim 1,

the sealed cavity is filled with heat insulation gas;

and/or the sealing cavity is filled with air;

and/or the sealed cavity is in a vacuum state.

4. Lens protective assembly according to claim 1 or 2,

an optical film and a waterproof anti-fog film are sequentially arranged on the surface of the first lens, which is far away from the second lens, from inside to outside;

and/or an optical film and a waterproof anti-fog film are sequentially arranged on the surface of the second lens, which is far away from the first lens, from inside to outside.

5. Lens protective assembly according to claim 1 or 2,

the first lens is made of glass;

and/or the second lens is made of glass.

6. The lens protective assembly according to claim 1 or 2, wherein the photographing apparatus comprises a lens module, the lens module being adjacent to the second lens;

the thickness of the second lens is less than or equal to the thickness of the first lens:

and/or the intensity of the second lens is less than or equal to the intensity of the first lens.

7. The lens protective assembly according to claim 1 or 2, wherein the connecting member is a rubber member, and the rubber member is bonded and fixed to the first lens and the second lens, respectively.

8. The lens protective assembly according to claim 7, wherein the glue is a waterproof glue; andor the rubber piece is shock absorption rubber.

9. A photographing apparatus, characterized by comprising:

the shell is provided with a mounting cavity;

the lens module is arranged in the mounting cavity; and

the lens guard assembly of any one of claims 1-8, wherein the lens guard assembly is disposed on the housing and corresponds to the lens module.

10. The photographing apparatus according to claim 9,

the lens protection component is arranged on the shell in an adhering mode;

or, the shell includes the installation department, lens protection component includes the cooperation portion, the cooperation portion be used for with the connection can be dismantled to the installation department.

11. A photographing apparatus, characterized by comprising:

the shell is provided with a mounting groove;

a first lens;

the second lens is positioned on one side of the first lens, and the second lens and the first lens are arranged at intervals; and

the connecting piece, the connecting piece is used for connecting first lens with the mounting groove, the connecting piece still is used for connecting the second lens with the mounting groove to the cooperation first lens, the second lens and the inner wall of mounting groove forms sealed chamber, wherein, sealed chamber's heat conduction efficiency is less than first lens and second lens.

Images