CN201141550Y - Light distribution grating plate - Google Patents

Abstract

A light distribution grating board is used for a lighting face cover body of a lamp, a plurality of sawtooth gratings are formed on the top surface of a light-transmitting plate, each sawtooth grating is composed of a convex lens surface and a linear inclined edge surface, and the sawtooth gratings are arranged in a mirror direction strip shape by taking the central line of the light-transmitting plate as a reference, so that the linear inclined edge surfaces face the two sides of the light-transmitting plate, and the convex lens surfaces face the central line; the top surface is a light receiving surface in the lamp. The bottom surface of the light-transmitting plate is provided with a plurality of convex lens strip-shaped gratings, and the bottom surface is a light-emitting surface in the lamp. By means of the structure, the uniform light distribution is achieved, the phenomenon of Gaussian distribution with special brightness under the lamp is avoided, the phenomenon that eyes can directly see bright light of a light source in the lamp to generate glare is avoided, and the light is softer under the condition of minimum brightness loss.

Description

Light distribution grating

technical field

The utility model relates to a lighting fixture structure, in particular to a light distribution grating plate.

Background technique

Lighting lamps are generally divided into two types: indoor and outdoor. Indoor lamps are mainly half-covered (please refer to FIG. 1A ). With reflective effect, in order to avoid the glare and glare caused by the light source to the eyes, this kind of lamp is usually atomized on the surface of the light source to reduce the above phenomenon.

Due to environmental considerations, outdoor lamps are mainly full-cover lampshades (please refer to Figure 1B), and the light-transmitting lampshade 104 below is also treated with atomization to avoid glare when the eyes look directly at the light source. Both of them have the same The disadvantage is that a lot of brightness is lost due to fogging, and the brightness is concentrated in a Gaussian distribution phenomenon in a certain area directly below the lamp.

Contents of the invention

The purpose of the utility model is to provide a light distribution grating plate to improve the problems of the known technology, to achieve uniform distribution of light and to avoid the particularly bright Gaussian distribution phenomenon directly under the lamp, and to prevent the eyes from directly seeing the light source in the lamp Bright light produces glare and softens the light with minimal loss of brightness.

According to the above purpose, the light distribution grating plate provided by the utility model has several zigzag gratings formed on the top surface of a light-transmitting plate as the light-receiving surface of the lamp, and is characterized in that:

Each of the zigzag gratings is composed of a convex lens surface and a straight hypotenuse, and the zigzag gratings are arranged in mirror strips with the center line of the light-transmitting plate as the reference, and the straight hypotenuses face both sides of the light-transmitting plate , while the convex lens faces toward the centerline.

Among them, the light-transmitting plate serves as the bottom surface of the light-emitting surface of the lamp, and several convex lens strip gratings are formed.

Wherein, the radius size and pitch of each convex lens surface arc of the convex lens strip grating is the total refraction angle of the incident light on the surface.

Wherein, the arc radius size and inclination angle of each convex lens surface of the zigzag grating are the total refraction angle of the incident light on the surface.

Wherein, the size of each straight hypotenuse of the zigzag grating and the angle between the straight hypotenuse and the horizontal line are the total refraction angle of the incident light on the surface.

A light distribution grating plate, which is formed with several zigzag gratings on the top surface of a light-transmitting plate as the light receiving surface of the lamp. It is characterized in that: each zigzag grating is composed of a convex lens surface and a straight hypotenuse surface, and the The sawtooth gratings are arranged in a mirror ring with the central point of the transparent plate as the reference, the straight hypotenuse faces the periphery of the transparent plate, and the convex lens faces the central point.

Among them, the light-transmitting plate is used as the bottom surface of the light-emitting surface of the lamp, and several convex lens annular gratings are formed.

Wherein, the radius size and spacing of each convex lens surface arc of the convex lens annular grating are the angles of total refraction of the incident light on the surface.

Wherein, the arc radius size and inclination angle of each convex lens surface of the zigzag gratings are the angles at which the incident light is totally refracted on the surface.

Wherein, the size of each straight hypotenuse surface of the zigzag grating and the angle between the straight hypotenuse and the horizontal line are the total refraction angles of the incident light on the surface.

A light distribution grating plate, which is formed with several convex lens gratings on the central area of the top surface of a light-transmitting plate used as the light receiving surface of the lamp, and several zigzag gratings are formed on the peripheral area, which is characterized in that:

Each of the zigzag gratings is composed of a convex lens surface and a straight hypotenuse, and the zigzag gratings are arranged in a mirror ring with the center of the transparent plate as a reference, and the straight hypotenuse faces the transparent plate. The side of the light plate, while the convex lens faces the center of the light-transmitting plate,

Each of the convex lens gratings is arranged circularly to form several convex lens gratings based on the center of the light-transmitting plate.

Among them, the light-transmitting plate is used as the bottom surface of the light-emitting surface of the lamp, and several convex lens annular gratings are formed.

Wherein, the radius size and spacing of each convex lens surface arc of the convex lens annular grating are the angles of total refraction of the incident light on the surface.

Wherein, the arc radius size and the arc inclination angle of each convex lens surface of the zigzag gratings are the angles of total refraction of the incident light on the surface.

Wherein, the size of each straight hypotenuse surface of the zigzag grating and the angle between the straight hypotenuse and the horizontal line are the total refraction angles of the incident light on the surface.

A light distribution grating plate, which is formed with several convex lens gratings on the central area of the top surface of a light-transmitting plate used as the light receiving surface of the lamp, and several zigzag gratings are formed on the peripheral area, which is characterized in that:

Each of the zigzag gratings is composed of a convex lens surface and a straight hypotenuse, and the zigzag gratings are arranged in mirror strips with the center line of the transparent plate as a reference, and the straight hypotenuse faces the On both sides of the light-transmitting plate, the convex lens faces toward the center line of the light-transmitting plate, and each of the convex lens gratings is arranged in strips in the direction of the above-mentioned zigzag grating.

Among them, the light-transmitting plate serves as the bottom surface of the light-emitting surface of the lamp, and several convex lens strip gratings are formed.

Wherein, the radius size and pitch of each convex lens surface arc of the convex lens strip grating is the angle of total refraction of the incident light on the surface.

Wherein, the arc radius size and the arc inclination angle of each convex lens surface of the zigzag gratings are the angles of total refraction of the incident light on the surface.

Wherein, the size of each straight hypotenuse surface of the zigzag grating and the angle between the straight hypotenuse and the horizontal line are the total refraction angles of the incident light on the surface.

Beneficial effects of the utility model: through the above-mentioned structure, the light distribution grating plate provided by the utility model, the arc radius size and the inclination angle of each convex lens surface of the zigzag grating are based on the total refraction of the incident light through the surface The angle (the angle between the incident light and the normal line of the surface is smaller than the reflection angle so that the light basically does not reflect) changes; and the size of each straight hypotenuse of the zigzag grating and the angle between the straight hypotenuse and the horizontal line, Varies according to the angle at which incident light is to be totally refracted by the surface. In addition, the arc radius size and distance of each convex lens surface of the convex lens strip grating or the convex lens annular grating vary according to the angle at which the incident light is to be totally refracted by the surface. In this way, the light in the lamp can be refracted to a small area in the area to be illuminated, so as to achieve uniform distribution of light and avoid the particularly bright Gaussian distribution phenomenon directly under the lamp.

The light distribution grating plate of the utility model can be further improved, and several convex lens strips or annular gratings can be formed at the brightest position of the light source in the middle of the top surface or bottom surface of the light-transmitting plate. With this structure, the uniform distribution of light can be achieved to avoid the particularly bright Gaussian distribution phenomenon directly under the lamp, and it can also prevent the eyes from directly seeing the bright light of the light source in the lamp and cause glare, and make the light softer with the minimum loss of brightness .

Hereinafter, the structure and principle of the present invention will be described in detail according to various embodiments shown in the drawings.

Description of drawings

Fig. 1A is a schematic diagram of a conventional half-cover lighting fixture,

Fig. 1B is a schematic diagram of a conventional full cover lighting fixture,

Fig. 2 is a top view of the first embodiment of the light distribution grating plate of the present invention,

Figure 2A is a front view of Figure 2,

Figure 2B is a side view of Figure 2,

Fig. 3 is an enlarged display diagram of the central area of the first embodiment of the utility model shown in Fig. 2, as well as a description of the progress of light rays,

Fig. 4 is a top view of the second embodiment of the light distribution grating plate of the present invention,

Figure 4A is a front view of Figure 4,

Figure 4B is a side view of Figure 4,

Fig. 5 is an enlarged display diagram of the central area of the first embodiment of the light distribution grating plate of the present invention shown in Fig. 4, and a description of the progress of light rays,

Fig. 6 is a top view of the third embodiment of the light distribution grating plate of the present invention,

Figure 6A is a front view of Figure 6,

Figure 6B is a side view of Figure 6,

Fig. 7 is a top view of the fourth embodiment of the light distribution grating plate of the present invention,

Figure 7A is a front view of Figure 7,

Figure 7B is a side view of Figure 7,

Fig. 8 is the diagram of the first embodiment of the light distribution grating plate of the present invention shown in Fig. 2 applied to the first embodiment of the lamp and the description of the light travel.

FIG. 9 is a diagram of the second embodiment of the light distribution grating plate of the present invention shown in FIG. 4 applied to a lamp and a description of light travel.

Fig. 10 is a top view of the first embodiment of the improved light distribution grating plate of the present invention,

Figure 10A is a front view of Figure 10,

Figure 10B is a side view of Figure 10,

Fig. 11 is an enlarged display diagram of the central area of the first embodiment of the improved light distribution grating plate of the utility model shown in Fig. 10, and a description of the light traveling,

Fig. 12 is a top view of the second embodiment of the improved light distribution grating plate of the present invention,

Figure 12A is a front view of Figure 12,

Figure 12B is a side view of Figure 12,

Fig. 13 is an enlarged display diagram of the central area of the first embodiment of the improved light distribution grating plate of the utility model shown in Fig. 12, and a description of the progress of light rays,

Fig. 14 is a top view of the third embodiment of the improved light distribution grating plate of the present invention,

Figure 14A is a front view of Figure 14,

Figure 14B is a side view of Figure 14,

Fig. 15 is a top view of the fourth embodiment of the improved light distribution grating plate of the present invention,

Figure 15A is a front view of Figure 15,

Figure 15B is a side view of Figure 15,

Fig. 16 is the diagram of the first embodiment of the improved light distribution grating plate of the present invention shown in Fig. 10 applied to the first embodiment of the lamp and the description of the light travel.

Fig. 17 is a diagram of the second embodiment of the improved light distribution grating plate of the present invention shown in Fig. 12 applied to a lamp and a description of light travel.

Detailed ways

The utility model relates to a light distribution grating plate. The light distribution grating plate formed by a light-transmitting plate is used as the lighting mask body of a lamp.

Referring to Fig. 2, Fig. 2A and Fig. 2B are the first embodiment of the present invention, one surface of a square light-transmitting board 201 is a flat surface 202, and the other surface is formed with several zigzag gratings 203, each zigzag grating The sawtooth is composed of a convex lens surface S1 and a straight hypotenuse surface S2. Several zigzag gratings are arranged in a mirroring manner to the centerline 204 of the light-transmitting plate 201, and the convex lens surface S1 faces the center line, and the straight hypotenuse surface S2 faces both sides.

Please refer to FIG. 3 , which is an enlarged display view of the central area of a light distribution grating plate 301 , wherein one surface (bottom surface) is a plane 302 , and the other surface (top surface) is shaped like several zigzag gratings 303 in FIG. 2 .

Light 306 enters one of the convex lens surfaces 311 of the zigzag grating and produces the first total refraction when it reaches the plane 302 and enters the illumination area for the second time; light 307 enters one of the convex lens surfaces 310 of the zigzag grating and produces the first time The total refraction to the plane 302 produces a second total refraction into the illuminated area.

From ray 306 and ray 307, it can be seen that the light incident on the surface of the convex lens is refracted twice and irradiates to both sides below the light distribution grating plate 301. , when the inclination of the arc line is higher, the angle at which the light refracts out of the plane below the light distribution grating plate 301 is larger, that is, the width of the light irradiating to both sides is wider; conversely, when the inclination of the arc line is lower, the light refracts out of the light distribution The smaller the angle of the plane below the grating plate 301 is, that is, the narrower the width of light irradiating to both sides. Therefore, as long as the arc radius and inclination angle of the convex lens surface on the grating plate are set, the light can be controlled to irradiate a specific area in the area to be illuminated, so that the light can be evenly distributed in the illuminated area.

Light 308 enters one of the straight hypotenuses 312 of the zigzag grating and produces the first total refraction when it reaches the plane 302 and produces the second total refraction into the illumination area; after the light 309 enters one of the straight hypotenuses 313 of the zigzag grating The second total refraction into the illuminated area occurs when the first total refraction occurs to the plane 302 .

From light 308 and light 309, it can be seen that the light incident on the straight hypotenuse is irradiated toward the center of the light distribution grating plate 301 after being refracted twice, and the refracted angle of the light depends on the angle between the straight hypotenuse and the horizontal line Angle, when the angle between the straight hypotenuse surface and the horizontal line is larger, the angle at which the light refracts out of the plane below the light distribution grating plate 301 is larger, that is, the width of the light irradiating to both sides is wider; on the contrary, when the straight hypotenuse and the horizontal line The smaller the angle, the smaller the angle at which the light refracts out of the plane below the light distribution grating plate 301 , that is, the narrower the width of the light irradiating to both sides. Therefore, as long as the angle between the hypotenuse of the straight line and the horizontal plane is set, the light can also be controlled to irradiate a specific area in the area to be illuminated, so that the light can be evenly distributed in the illuminated area.

Referring to Fig. 4, Fig. 4A and Fig. 4B are the second embodiment of the present utility model, a square light-transmitting plate 401, wherein one surface is formed with several strip-shaped zigzag gratings 403 as in Fig. 2, and one surface is formed with several strip-shaped convex lens gratings 402 ; and the number of zigzag gratings 403 is arranged in a mirroring manner to the central line 404 of the light-transmitting plate 401 .

Please refer to FIG. 5 , an enlarged display view of the central area of a light distribution grating plate 501, wherein one surface (bottom surface) is a strip grating of convex lenses, and the other surface (top surface) is shaped like the zigzag grating 502 of several strips in FIG. The difference from the content described in FIG. 3 is only that the lower surface of the light distribution grating plate 501 is a strip grating of several convex lenses. When the light rays 505, 508, 511, 514 pass through the convex lens surfaces 506, 509 or the straight hypotenuse surfaces 512, 515 of the several strip zigzag gratings 502, the total refraction of the first time to the bottom surface of the several convex lens strip gratings 513, 516 and the plane is generated. After 507 and 510, the refraction angle of the second total refraction entering the lighting area is different.

The radius of the convex lens of the convex lens strip grating directly affects the angle at which the light produces the second total refraction. It has a certain rule, that is, the larger the radius of the convex lens on the convex lens strip grating, the smaller the incident angle (total refraction angle) of the incident ray, and the smaller the angle relative to the refracted light distribution grating plate 501, that is, the narrower the width of the illuminated area; Conversely, the smaller the radius of the convex lens on the convex lens strip grating, the larger the incident angle of the incident ray, and the larger the angle (total refraction angle) relative to the refracted light distribution grating plate 501, that is, the wider the width of the illuminated area. Properly setting the radius and spacing of the number of convex lenses can achieve a more refined effect of uniform distribution of brightness in the illuminated area.

Please refer to Figure 6, Figure 6A and Figure 6B for the third embodiment of the present invention, a circular light-transmitting plate 601, one surface (bottom surface) is a plane 602, and the other surface (top surface) is formed with ring-shaped sawtooth Shaped grating 603, the structure of this ring-shaped zigzag grating is the same as the structure of several zigzag gratings 203 in Figure 2, but it is arranged in a ring around the center 604 of the circular light-transmitting plate 601. The design principle of the straight hypotenuse and the different effects of lighting are the same as those described in Figure 3.

Please refer to Fig. 7, Fig. 7A and Fig. 7B are the fourth embodiment of the present utility model, a circular light-transmitting plate 701, one surface (top surface) of which is shaped like the number ring zigzag grating 703 in Fig. 6, the number ring The zigzag grating 703 is arranged in a ring with the center 704 of the circular light-transmitting plate 701 as the center; the other surface (bottom surface) forms a ring-shaped convex lens grating 702, and the design principle of the radius of the convex lens is different from that of the lighting effect. Figure 5 describes the content.

Please refer to Fig. 8, which is the first embodiment of the utility model used in a lamp. On the lighting surface below the lamp body 105, the movable device is a light distribution grating plate 801, and the surface (bottom surface) of the grating plate is a plane 802 facing the lighting area. It is the light-emitting surface, and the other surface (top surface) is formed with a number of zigzag gratings 803 facing the light source 102 as a light-receiving surface. The number of zigzag gratings 803 is arranged in a mirror direction based on the center line of the grating plate, and the convex lens faces the center line of the grating plate. The hypotenuse faces the side of the grating plate, and the center of the light distribution grating plate 801 is aligned directly under the light source 102 .

When the light 805 enters one of the convex lens surfaces 806 of the zigzag grating of the light distribution grating plate 801, the first total refraction occurs, and when it reaches the plane 802, the second total refraction occurs toward the lower left of the lamp and enters the lighting area. When the light 807 enters one of the convex lens surfaces 808 of the zigzag grating of the light distribution grating plate 801, it undergoes the first total refraction, and when it reaches the plane 802, it undergoes the second total refraction toward the lower left of the lamp and enters the lighting area. When the light 809 enters the zigzag grating of the light distribution grating plate 801, the first total refraction occurs when it reaches the straight hypotenuse surface 810, and the second total refraction occurs when it reaches the plane 802 to the lower right of the lamp and enters the lighting area. The grating plate can indeed control the specific lighting area of most of the light in the lamp, so as to achieve the energy-saving effect and soft light effect of uniform distribution of brightness in the lighting area.

Please refer to Fig. 9, which is a second embodiment of the utility model used in a lamp. On the lighting surface below the lamp body 105, the movable device is a light distribution grating plate 901, and the surface (bottom surface) of the grating plate is formed with several convex lenses 902 facing the lighting. The area is the light-emitting surface, and the other surface (top surface) is formed with a number of zigzag gratings 903 facing the light source 102 as the light receiving surface. The number of zigzag gratings 903 is arranged in a mirror direction based on the center line of the grating plate, and the convex lens faces the center line of the grating plate The straight hypotenuse faces the side of the grating plate, and the center of the light distribution grating plate 901 is aligned directly under the light source 102 .

When the light 905 enters one of the convex lens surfaces 906 of the zigzag grating of the light distribution grating plate 901, it produces the first total refraction, and when it reaches one of the convex lenses 907 below the light distribution grating plate 901, it produces the second total refraction to the lower left of the lamp. Refraction enters the illuminated area. When the light 908 enters the other convex lens surface 909 of the zigzag grating of the light distribution grating plate 901, the first total refraction occurs; Refraction enters the illuminated area. When the light 911 enters the zigzag grating of the light distribution grating plate 901, a straight line hypotenuse 912 produces the first refraction, and when it reaches the plane 913 below the light distribution grating plate 901, it produces the second total refraction to the lower right of the lamp. In the lighting area, the light distribution grating plate can indeed control the specific lighting area of most of the light in the lamp, so as to achieve the energy-saving effect and the soft light effect of uniform distribution of brightness in the lighting area.

The light distribution grating plate of the utility model can be further improved, and several convex lens strip gratings can be formed at the brightest position illuminated by the light source in the middle of the top or bottom surface of the light-transmitting plate. With this structure, the uniform distribution of light can be achieved to avoid the particularly bright Gaussian distribution phenomenon directly under the lamp, and it can also prevent the eyes from directly seeing the bright light of the light source in the lamp and cause glare, and make the light softer with the minimum loss of brightness .

Referring to Fig. 10, Fig. 10A and Fig. 10B are the first embodiment of the improved light distribution grating plate of the present invention, one surface of a square light-transmitting plate 1201 is a flat surface 1202, and the central area of the other surface is formed with several strip-shaped convex lenses Grating 1205, a number of zigzag gratings 1203 are formed on both sides of the convex lens grating. Each sawtooth of the zigzag grating is composed of a convex lens surface S1 and a straight hypotenuse surface S2. Arranged in a directional manner, and the convex lens surface S1 faces the center line, and the straight hypotenuse surface S2 faces the two sides.

Please refer to FIG. 11, which is an enlarged display diagram of the central area of an improved light distribution grating plate 1301, wherein one surface (bottom surface) is a plane 1302, and the other surface (top surface) is shaped like the convex lens strip grating 1304 and several strip gratings in FIG. 2. zigzag grating 1303.

The light 1314 enters one of the convex lenses 1305 of the convex lens grating and produces the first total refraction when it hits the plane 1302 and then enters the illumination area for the second time; it can be seen from the light 1314 that the light incident on the convex lens is refracted twice and irradiated on the In the central area below the light distribution grating plate 1301, the angle at which the light is refracted depends on the radius of the arc of the convex lens surface. When the radius of the arc is larger, that is, the curvature of the arc is smaller, the light is refracted out from under the light distribution grating plate 1301. The smaller the angle of the plane, that is, the narrower the width of the light irradiating to both sides; on the contrary, when the radius of the arc line is smaller, that is, the curvature of the arc line is larger, the angle of the light refracted out of the plane below the light distribution grating plate 1301 is smaller. Larger, that is, the wider the width of the light shining on both sides. Therefore, as long as the radius of the arc of the convex lens on the grating plate is set, the light can be controlled to irradiate a specific area of the area to be illuminated, so that the light can be evenly distributed in the illuminated area.

Light 1306 enters one of the convex lens surfaces 1311 of the zigzag grating and produces the first total refraction when it reaches the plane 1302 and enters the illumination area for the second time; light 1307 enters one of the convex lens surfaces 1310 of the zigzag grating and produces the first When the total refraction reaches the plane 1302, the second total refraction enters the illuminated area.

From ray 1306 and ray 1307, it can be seen that the light incident on the surface of the convex lens is refracted twice and irradiates to both sides below the light distribution grating plate 1301, and the refracted angle of the light depends on the radius and inclination angle of the convex lens , when the inclination of the arc line is higher, the angle at which the light refracts out of the plane below the light distribution grating plate 1301 is larger, that is, the width of the light irradiating to both sides is wider; on the contrary, when the inclination of the arc line is lower, the light refracts out of the light distribution The smaller the angle of the plane below the grating plate 1301 is, that is, the narrower the width of light irradiating to both sides is. Therefore, as long as the arc radius and inclination angle of the convex lens surface on the grating plate are set, the light can be controlled to irradiate a specific area in the area to be illuminated, so that the light can be evenly distributed in the illuminated area.

When the light 1308 enters the straight hypotenuse 1312 of the zigzag grating and produces the first total refraction to the plane 1302, the second total refraction enters the illumination area; the light 1309 enters the straight hypotenuse 1313 of the zigzag grating and produces the first When the second total refraction reaches the plane 1302, the second total refraction enters the lighting area.

From ray 1308 and ray 1309, it can be seen that most of the light rays incident on the straight hypotenuse surface are irradiated toward the center of the light distribution grating plate 1301 after being refracted twice, and the refracted angle of the light depends on the straight hypotenuse surface Angle with the horizontal line, when the angle between the hypotenuse of the straight line and the horizontal line is larger, the angle at which the light refracts out of the plane below the light distribution grating plate 1301 is larger, that is, the width of the light irradiating to both sides is wider; on the contrary, when the straight line is oblique The smaller the angle between the side and the horizontal line, the smaller the angle at which the light refracts out of the plane below the light distribution grating plate 1301 , that is, the narrower the width of the light irradiating to both sides. Therefore, as long as the angle between the hypotenuse of the straight line and the horizontal line is set, the light can also be controlled to irradiate a specific area of the area to be illuminated, so that the light can be evenly distributed in the illuminated area.

Referring to Fig. 12, Fig. 12A and Fig. 12B are the second embodiment of the improved light distribution grating plate of the present invention, a square light-transmitting plate 1401, one surface of which is shaped like the number of convex lens strip gratings 1405 and the number of strips in Fig. 10 A part of the zigzag grating 1403 is a part of the plane 1406 forming several strips of convex lens gratings 1402;

Please refer to FIG. 13 , which is an enlarged view of the central area of a light distribution grating plate 1501, in which one surface (bottom surface) is partly a convex lens strip grating and partly a plane, and the other surface (top surface) is shaped the same as that in FIG. 2 The strip zigzag grating 1502 and several strip convex lens gratings 1503 differ from those described in FIG. 3 only in that the lower surface of the light distribution grating plate 1501 is partly several strip convex lens gratings and partly flat. When the light rays 1505, 1508, 1511, 1514, 1517 pass through the convex lens surfaces 1506, 1509 of the zigzag grating 1502 or the straight hypotenuse surfaces 1512, 1515 or the strip convex lens grating 1518, the first total refraction occurs to the convex lens After the strip gratings 1513, 1516, 1519 and the planes 1507, 1510, the refraction angle of the second total refraction entering the illumination area is different. The light 1517 close to the center passes through the strip convex lens grating 1518 and the convex lens strip grating 1519, and refracts twice into the lighting area, so that the light in the middle of the grating plate is evenly distributed to avoid the brightness directly below the lamp.

The radius of the convex lens of this part of the convex lens grating directly affects the angle of the second refraction of the light. It has a certain rule, that is, the larger the radius of the convex lens on the strip convex lens grating, the smaller the incident angle (total refraction angle) of the incident ray, and the smaller the angle relative to the refracted light distribution grating plate 1501, that is, the narrower the width of the illuminated area; Conversely, the smaller the radius of the convex lens on the strip-shaped convex lens grating, the larger the incident angle (total refraction angle) of the incident ray, and the larger the angle relative to the refracted light distribution grating plate 1501, that is, the wider the width of the illuminated area. Properly setting the radius of the number of convex lenses can achieve a more refined effect of uniform distribution of brightness in the illuminated area.

Please refer to Fig. 14, Fig. 14A and Fig. 14B are the third embodiment of the improved light distribution grating plate of the present invention, a circular light-transmitting plate 1601, one of the surfaces (bottom surface) is a plane 1602, and the other surface (top surface) ) forming a number of ring-shaped convex lens gratings 1605 and a number of ring-shaped zigzag gratings 1603, the structure of the number of ring-shaped convex lens gratings and the number of ring-shaped zigzag gratings is the same as that of the number of strips of convex lens gratings 1205 and the number of strips of zigzag gratings 1203 in Figure 10 structure, but arranged in a ring around the center 1604 of the circular light-transmitting plate 1601, the design principle of the convex lens arc and the straight hypotenuse and the different lighting effects are the same as those described in Figure 11.

Please refer to Figure 15, Figure 15A and Figure 15B for the fourth embodiment of the present utility model, a circular light-transmitting plate 1701, one of the surfaces (top surface) is shaped like 6 annular convex lens gratings 1705 and annular sawtooth The shaped grating 1703 is arranged in a ring around the center 1704 of the circular light-transmitting plate 1701; the other surface (bottom surface) is partially formed with a ring-shaped convex lens grating 1702, and the part is a plane 1706. The design principle of the radius of the convex lens is the same as Produce different lighting effects with the content described in FIG. 13 .

Please refer to Figure 16, which is the first embodiment of the improved light distribution grating plate used in the lamp of the present invention. On the lighting surface below the lamp body 105, the movable device is a light distribution grating plate 1801, and the grating plate is a surface (bottom surface) The plane 1802 is the light-emitting surface facing the illumination area, and the other surface (top surface) is formed with several convex lens gratings 1804 and several zigzag gratings 1803 facing the light source 102 as the light-receiving surface, and the center of the improved light distribution grating plate 1801 is aligned with the light source 102 Directly below.

When the light 1805 enters one of the convex lens surfaces 1806 of the zigzag grating of the improved light distribution grating plate 1801, it produces the first total refraction, and when it reaches the plane 1802, it produces the second total refraction toward the lower left of the lamp and enters the lighting area. When the light 1807 enters one of the convex lens surfaces 1808 of the zigzag grating of the improved light distribution grating plate 1801, the first total refraction occurs, and when it reaches the plane 1802, the second total refraction toward the lower left of the lamp enters the lighting area. When the light 1809 enters the zigzag grating of the improved light distribution grating plate 1801, the first total refraction occurs when the straight hypotenuse 1810 reaches the plane 1802, and the second total refraction toward the lower right of the lamp enters the lighting area, and the light 1812 When it enters the surface of one of the convex lens 1811 of the convex lens grating, it produces the first total refraction, and when it reaches the plane 1802, it produces the second total refraction and enters the central area under the lamp. This improved light distribution grating can indeed control most of the light in the lamp. The specific lighting area can achieve the energy-saving effect and soft light effect of uniform distribution of brightness in the lighting area.

Please refer to Figure 17, which is the second embodiment of the improved light distribution grating plate used in the lamp of the present invention. On the lighting surface below the lamp body 105, the movable device is an improved light distribution grating plate 1901, and the grating plate is a surface ( The bottom surface) part is formed with convex lens 1904, and the part is plane 1902, 1913 facing the lighting area as the light-emitting surface, and the central area of the other surface (top surface) is formed with convex lens grating 1917, and the two sides of the convex lens grating are formed with zigzag grating 1903 facing the light source 102. The light receiving surface, and the center of the light distribution grating plate 1901 is aligned directly under the light source 102 .

When the light 1905 enters one of the convex lens surfaces 1906 of the zigzag grating of the improved light distribution grating plate 1901, the first total refraction occurs, and when it reaches one of the convex lenses 1907 under the improved light distribution grating plate 1901, the second light beam goes to the lower left of the lamp. Double total refraction enters the illuminated area. When the light 1908 enters one of the convex lens surfaces 1909 of the zigzag grating of the improved light distribution grating plate 1901, the first total refraction occurs; Subtotal refraction enters the illuminated area. When the light 1911 enters the zigzag grating of the improved light distribution grating plate 1901, a straight hypotenuse 1912 produces the first total refraction, and when it reaches the plane 1913 below the improved light distribution grating plate 1901, it produces the second light towards the lower right of the lamp. Subtotal refraction enters the illumination area. When the light 1914 enters one of the convex lens surfaces 1915 of the improved light distribution grating plate 1901, the first total refraction occurs, and when it reaches one of the convex lenses 1916 below the improved light distribution grating plate 1901 The second total refraction to the area below the luminaire enters the lighting area. This improved light distribution grating can indeed control the specific lighting area of most of the light in the luminaire, achieving the energy-saving effect and soft light effect of uniform distribution of brightness in the lighting area. .

Claims (20)

1. A light distribution grating plate, which is formed with several zigzag gratings on a light-transmitting plate as the top surface of the light receiving surface of the lamp, characterized in that: Each of the zigzag gratings is composed of a convex lens surface and a straight hypotenuse, and the zigzag gratings are arranged in mirror strips with the center line of the light-transmitting plate as the reference, and the straight hypotenuses face both sides of the light-transmitting plate , while the convex lens faces toward the centerline. 2. The light distribution grating plate according to claim 1, characterized in that the bottom surface of the light-transmitting plate used as the light-emitting surface of the lamp is formed with several convex lens strip gratings. 3 . The light distribution grating plate according to claim 2 , wherein the size and spacing of the arc radius and spacing on the surface of each convex lens strip grating are the total refraction angle of the incident light on the surface. 4 . 4 . The light distribution grating plate according to claim 1 , wherein the arc radius and inclination angle of each convex lens surface of the zigzag grating are the total refraction angle of the incident light on the surface. 5. The light distribution grating plate according to claim 1, wherein the size of each straight hypotenuse of the zigzag grating and the angle between the straight hypotenuse and the horizontal line are the total refraction of the incident light on the surface angle. 6. A light distribution grating plate, which is formed with several zigzag gratings on the top surface of a light-transmitting plate as the light receiving surface of the lamp. It is characterized in that: each zigzag grating is composed of a convex lens surface and a straight hypotenuse surface, And the sawtooth gratings are arranged in a mirror ring with the central point of the transparent plate as a reference, the straight hypotenuse faces the periphery of the transparent plate, and the convex lens faces the central point. 7. The light distribution grating plate according to claim 6, characterized in that, the bottom surface of the transparent plate used as the light emitting surface of the lamp is formed with several convex lens annular gratings. 8 . The light distribution grating plate according to claim 7 , wherein the size and distance of the arc radius and spacing on the surface of each convex lens annular grating are the angles at which the incident light is totally refracted on the surface. 9 . The light distribution grating plate according to claim 6 , wherein the arc radius and inclination angle of each convex lens surface of the zigzag gratings are the angles at which the incident light is totally refracted on the surface. 10. The light distribution grating plate according to claim 6, wherein the size of each straight hypotenuse of the zigzag grating and the angle between the straight hypotenuse and the horizontal line are the total refraction of the incident light on the surface angle. 11. A light distribution grating plate, which is formed with several convex lens gratings in the central area of the top surface of a light-transmitting plate as the light-receiving surface of the lamp, and several zigzag gratings are formed in the peripheral area, characterized in that: Each of the zigzag gratings is composed of a convex lens surface and a straight hypotenuse, and the zigzag gratings are arranged in a mirror ring with the center of the transparent plate as a reference, and the straight hypotenuse faces the transparent plate. The side of the light plate, while the convex lens faces the center of the light-transmitting plate, Each of the convex lens gratings is arranged circularly to form several convex lens gratings based on the center of the light-transmitting plate. 12. The light distribution grating plate according to claim 11, characterized in that, the bottom surface of the light-transmitting plate used as the light-emitting surface of the lamp is formed with several convex lens annular gratings. 13. The light-distributing grating plate according to claim 12, wherein the size of the arc radius and the pitch of each convex lens surface of the convex lens annular grating are the angles at which the incident light is totally refracted on the surface. 14 . The light distribution grating plate according to claim 11 , wherein the arc radius and arc inclination angle of each convex lens surface of the zigzag gratings are the angles at which the incident light is totally refracted on the surface. 15. The light distribution grating plate according to claim 11, characterized in that the size of each straight hypotenuse of the zigzag grating and the angle between the straight hypotenuse and the horizontal line are the total refraction of the incident light on the surface angle. 16. A light distribution grating plate, which is formed with several convex lens gratings in the central area of the top surface of a light-transmitting plate as the light receiving surface of the lamp, and several zigzag gratings are formed in the peripheral area, characterized in that: Each of the zigzag gratings is composed of a convex lens surface and a straight hypotenuse, and the zigzag gratings are arranged in mirror strips with the center line of the transparent plate as a reference, and the straight hypotenuse faces the The two sides of the light-transmitting plate, and the convex lens faces the centerline of the light-transmitting plate, Each of the convex lens gratings is arranged in stripes along the direction of the zigzag grating. 17. The light distribution grating plate according to claim 16, characterized in that the bottom surface of the light-transmitting plate used as the light-emitting surface of the lamp is formed with several convex lens strip gratings. 18. The light distribution grating plate according to claim 17, characterized in that, the radius size and spacing of each convex lens surface arc of the convex lens strip grating are the angles at which the incident light is totally refracted on the surface. 19 . The light distribution grating plate according to claim 16 , wherein the arc radius and arc inclination angle of each convex lens surface of the zigzag gratings are the angles at which the incident light is totally refracted on the surface. 20. The light distribution grating plate according to claim 16, characterized in that, the size of each straight hypotenuse surface of the zigzag grating and the angle between the straight hypotenuse and the horizontal line are the total refraction of the incident light on the surface angle.

Images