CN216952912U

CN216952912U - Lens and bias light distribution lamp

Info

Publication number: CN216952912U
Application number: CN202123406472.1U
Authority: CN
Inventors: 王万林; 赵健
Original assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-12
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a lens, comprising: the lens body is provided with a horizontal plane, an emergent end face arranged opposite to the horizontal plane, a first total reflection surface and a second total reflection surface which are connected with the horizontal plane and the emergent end face, and an incident light groove is concavely arranged from the horizontal plane to the direction of the emergent end face; the incident light groove comprises a first side incident surface, a second side incident surface and a normal incident surface connected with the first side incident surface and the second side incident surface, the emergent end surface comprises a middle emergent surface extending along the length direction, a first emergent surface connected with the middle emergent surface and the first total reflection surface, and a second emergent surface connected with the middle emergent surface and the second total reflection surface, and the first emergent surface and the horizontal plane form a first emergent included angle; the second emergent surface and the horizontal plane form a second emergent included angle. The utility model further provides a bias light distribution lamp.

Description

Lens and bias light distribution lamp

Technical Field

The utility model relates to the technical field of lamps, in particular to a lens and a bias light distribution lamp.

Background

The requirement that the bias light distribution lamp is used for walls, shelves and blackboards is increasing, such as illumination of building outer walls, illumination of billboards, illumination of supermarket shelves and the like. Because the irradiation range of the bias light distribution lamp is mainly wall surfaces, goods shelves and blackboards, the light emitted from the lamp cannot be simply and uniformly emitted, and different light rays can be emitted according to the distance from the lamp. The biased light distribution lamp generally adopts a lens for light distribution, and the lens in the prior art can emit uniform light rays, so that different positions far away from and near the biased light distribution lamp have the problems of uneven illuminance, glare and the like of a wall surface, a goods shelf and a blackboard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lens which is used for solving the problems of uneven illuminance and glare in the prior art.

Another object of the present invention is to provide a biased light fixture.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a lens, comprising: the lens comprises a long-strip-shaped lens body, a light source and a light source, wherein the lens body is provided with a horizontal plane extending along the length direction of the lens body, an emergent end face arranged opposite to the horizontal plane, a first total reflection face and a second total reflection face which are connected with the horizontal plane and the emergent end face, and an incident light groove is concavely arranged from the horizontal plane to the emergent end face; the incident light groove comprises a first side incident surface and a second side incident surface which are connected with the horizontal plane, and a normal incident surface which is connected with the first side incident surface and the second side incident surface, the first total reflection surface corresponds to the first side incident surface, and the second total reflection surface corresponds to the second side incident surface; the emergent end face comprises a middle emergent face extending along the length direction, a first emergent face connected with the middle emergent face and the first total reflection face, and a second emergent face connected with the middle emergent face and the second total reflection face, a first emergent included angle is formed between the first emergent face and the horizontal plane, and the distance from the connection point of the first emergent face and the first total reflection face to the horizontal plane is greater than the distance from the connection point of the first emergent face and the middle emergent face to the horizontal plane; the second emergent surface and the horizontal plane form a second emergent included angle, and the distance from the connecting point of the second emergent surface and the second total reflection surface to the horizontal plane is greater than the distance from the connecting point of the second emergent surface and the middle emergent surface to the horizontal plane.

The normal incidence plane and the horizontal plane form a first incidence included angle, and the distance from the connection point of the normal incidence plane and the first side incidence plane to the horizontal plane is greater than the distance from the connection point of the normal incidence plane and the second side incidence plane to the horizontal plane.

Wherein, the first incident included angle is 5-30 degrees.

And the first emergent included angle is larger than the second emergent included angle.

The first emergent straight angle is 10-40 degrees, and the second emergent included angle is 5-30 degrees.

The first emergent surface is a plane, the second emergent surface is a plane, and the middle emergent surface is an arc-shaped convex surface.

The first total reflection surface and the second total reflection surface are paraboloids.

The lamp body is in a long strip shape, the lamp body is provided with a light emitting groove which extends along the length direction and is provided with a light outlet, the light emitting module is arranged in the light emitting groove, the lens cover is arranged on the light emitting module, and the incident light groove and the light emitting module are arranged oppositely.

And a reflector is arranged on one side wall of the light-emitting groove, wherein the reflector is arranged on one side close to the first total reflection surface.

The reflector is provided with a reflecting surface, the reflecting surface extends along the length direction of the light-emitting groove, and the reflecting surface extends from the position near the light outlet of the light-emitting groove to the position near the lens.

The reflecting surface is arc-shaped from the direction close to the lens to the direction far away from the lens.

The light-emitting module comprises a long-strip-shaped circuit board and a plurality of light sources mounted on the circuit board, and the light sources are arranged at intervals along the length direction of the circuit board.

Compared with the prior art, the utility model has the following advantages:

according to the lens and the polarized light distribution lamp with the lens, the first emergent included angle and the second emergent included angle with different angles can be selected according to the installation position and angle of the polarized light distribution lamp, so that emergent rays are emitted unevenly, uniform and non-glare light spots are presented on an irradiated object, and the uniformity of the polarized light distribution lamp is improved.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of a lens of the present invention.

FIG. 2 is a cross-sectional view of a preferred embodiment of a lens of the present invention.

FIG. 3 is a perspective view of a preferred embodiment of a biased light fixture of the present invention.

FIG. 4 is a cross-sectional view of a preferred embodiment of a biased light fixture of the present invention.

FIG. 5 is a cross-sectional view of a preferred embodiment of a biased light fixture of the present invention.

In the figure, 100: a lens; 110: a lens body; 111: a horizontal plane; 112: a first total reflection surface; 113: a second total reflection surface; 120: an incident light groove; 121: a normal incidence plane; 122: a first side incident surface; 123: a second side incident surface; 130: an exit end face; 131: a first exit surface; 132: a middle exit surface; 133: a second exit face; a1, a first included angle of incidence; b1: a first exit included angle; b2: a first exit included angle; 200: a lamp body; 210: a light emitting groove; 211: a light outlet; 220: a reflector; 221: a light-reflecting surface; 300: a light emitting module; 310: a circuit board; 320: a light source.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

Referring to fig. 1-2, a preferred embodiment of a lens 100 of the present invention is shown, the lens 100 comprising: the lens body 110 is an elongated lens body 110, and the lens body 110 has a horizontal surface 111 extending in a longitudinal direction thereof, an exit end surface 130 disposed opposite to the horizontal surface 111, and a first total reflection surface 112 and a second total reflection surface 113 connected to the horizontal surface 111 and the exit end surface 130. An incident light groove 120 is concavely arranged from the horizontal plane 111 to the direction of the emergent end face 130; the incident light groove 120 includes a first side incident surface 122 and a second side incident surface 123 both connected to the horizontal plane 111, and a normal incident surface 121 connecting the first side incident surface 122 and the second side incident surface 123, the first total reflection surface 112 corresponds to the first side incident surface 122, and the second total reflection surface 113 corresponds to the second side incident surface 123. The exit end surface 130 includes an intermediate exit surface 132 extending along the length direction, a first exit surface 131 connecting the intermediate exit surface 132 and the first total reflection surface 112, and a second exit surface 133 connecting the intermediate exit surface 132 and the second total reflection surface 113, where the first exit surface 131 and the horizontal plane 111 form a first exit included angle B1, and a distance from a connection point of the first exit surface 131 and the first total reflection surface 112 to the horizontal plane 111 is greater than a distance from a connection point of the first exit surface 131 and the intermediate exit surface 132 to the horizontal plane 111. The second exit surface 133 and the horizontal plane 111 form a second exit included angle B2, and the distance from the connection point of the second exit surface 133 and the second total reflection surface 113 to the horizontal plane 111 is greater than the distance from the connection point of the second exit surface 133 and the intermediate exit surface 132 to the horizontal plane 111. Part of the light enters the first side incident surface 121, is reflected by the first total reflection surface 112, and is emitted through the first emitting surface 131; part of the light enters the second side incident surface 123, is reflected by the second total reflection surface 113, and is emitted through the second emitting surface 133; part of the light enters the lens body 110 through the normal incidence surface 122 and then exits from the intermediate exit surface 132.

The first light emitting surface 131 and the second light emitting surface 132 are obliquely arranged, so that the emergent light is in an incomplete and uniform state, the first emergent included angle B1 and the second emergent included angle B2 with different angles are selected according to the installation position and the installation angle of the offset light distribution lamp, the emergent light can be emitted unevenly, uniform and non-glare light spots are presented on an irradiated object, and the uniformity of the offset light distribution lamp is improved.

Further, the first included exit angle B1 is greater than the second included exit angle B2. The first emergent straight angle B1 is 10-40 degrees, and the second emergent angle B2 is 5-30 degrees. According to the setting requirement, the emergent light is more on one side and less on the other side, and the problem that uneven light spots are generated when the light is uniformly emitted to walls with different distances in the prior art is solved.

The normal incidence plane 122 forms a first incident angle a1 with the horizontal plane 111, and a distance from a connection point of the normal incidence plane 122 and the first side incidence plane 121 to the horizontal plane 111 is greater than a distance from a connection point of the normal incidence plane 122 and the second side incidence plane 123 to the horizontal plane 111. The first incident angle A1 is 5-30 degrees. The normal incidence plane 122 is also obliquely arranged, so that the light rays are not uniform at the emergent end and are uniform on the projected wall surface.

Further, the first exit surface 131 is a plane, the second exit surface 133 is a plane, and the middle exit surface 132 is an arc-shaped convex surface. When the light is emitted from the first and

second emission surfaces

131 and 133, the light is slightly concentrated obliquely toward the middle, and the light is diffused toward both sides from the middle emission surface 132.

The first total reflection surface 112 and the second total reflection surface 113 are paraboloids, have a total reflection function, and can totally reflect light and emit the light in a direction perpendicular to the emitting surface 413.

As shown in fig. 3 and 4, a preferred embodiment of the light bias distribution lamp of the present invention is shown, the light bias distribution lamp includes a lamp body 200, a light emitting module 300 and the lens 100 described in the above embodiment, the lamp body 200 is shaped like a long strip, the lamp body 200 is provided with a light emitting groove 210 extending along a length direction, the light emitting groove 210 is provided with a light outlet 211, the light emitting module 300 is installed in the light emitting groove 210, the lens 100 is covered on the light emitting module 300, the long lens 100 extends along the light emitting groove 210, and the long lens 100 may be arranged in a plurality of connected rows. The incident light groove 120 is disposed opposite to the light emitting module 300.

Further, a side wall of the light emitting groove 210 is provided with a reflector 220, wherein the reflector 220 is provided at a side close to the first total reflection surface 112. The reflector 220 is snap-fitted to the lamp body 200 and is located on one side wall of the light-emitting recess 210. The reflector 220 is provided with a light reflecting surface 221, the light reflecting surface 221 extends along the length direction of the light emitting groove 210, and the light reflecting surface 221 extends from the vicinity of the light outlet 211 of the light emitting groove 210 to the vicinity of the lens 100.

As shown in fig. 5, the light emitted from the light emitting module 300 enters the lens body 110 through the first side incident surface 121, the normal incident surface 122 and the second side incident surface 123. Part of the light enters the first side incident surface 121, is reflected by the first total reflection surface 112, is emitted through the first emitting surface 131, and reaches 2-3m of the wall surface; part of the light enters the second side incident surface 123, is reflected by the second total reflection surface 113, is emitted through the second emitting surface 133, and reaches 1-3m of the wall surface; part of the light enters the lens body 110 through the normal incidence surface 122, is refracted and then partially exits from the intermediate exit surface 132, and the exiting light reaches the reflector 220 and reaches 0-1m of the wall surface through reflection of the reflector 220. The whole light spot of the wall surface is uniform, and the wall surface is free of glare and dark areas. After the light rays are superposed, the whole wall surface is uniformly irradiated, and the uniform illumination of the irradiated object is finally realized.

In order to better reflect light to one side to form a biased light distribution, the reflector 220 is arc-shaped from the direction close to the lens 100 to the direction far away from the lens 100.

The light emitting module 300 includes a long circuit board 310 and a plurality of light sources 320 mounted on the circuit board 310, wherein the plurality of light sources 320 are arranged at intervals along the length direction of the circuit board 310. Those skilled in the art will understand that the light emitting module further includes a light source driver, which is connected to the light source 320 for controlling the light source 320 to emit light. The light emitting module 300 is not modified in the present invention, and the description thereof is omitted.

It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the utility model.

Claims

1. A lens, comprising: the lens comprises a long-strip-shaped lens body, a light source and a light source, wherein the lens body is provided with a horizontal plane extending along the length direction of the lens body, an emergent end face arranged opposite to the horizontal plane, a first total reflection face and a second total reflection face which are connected with the horizontal plane and the emergent end face, and an incident light groove is concavely arranged from the horizontal plane to the emergent end face; the incident light groove comprises a first side incident surface and a second side incident surface which are connected with the horizontal plane, and a normal incident surface which is connected with the first side incident surface and the second side incident surface, the first total reflection surface corresponds to the first side incident surface, and the second total reflection surface corresponds to the second side incident surface; the emergent end face comprises a middle emergent face extending along the length direction, a first emergent face connected with the middle emergent face and the first total reflection face, and a second emergent face connected with the middle emergent face and the second total reflection face, a first emergent included angle is formed between the first emergent face and the horizontal plane, and the distance from the connection point of the first emergent face and the first total reflection face to the horizontal plane is greater than the distance from the connection point of the first emergent face and the middle emergent face to the horizontal plane; the second emergent surface and the horizontal plane form a second emergent included angle, and the distance from the connecting point of the second emergent surface and the second total reflection surface to the horizontal plane is greater than the distance from the connecting point of the second emergent surface and the middle emergent surface to the horizontal plane.

2. The lens of claim 1, wherein the normal incidence surface forms a first included angle of incidence with the horizontal plane, and wherein the distance from the connection point of the normal incidence surface and the first side incidence surface to the horizontal plane is greater than the distance from the connection point of the normal incidence surface and the second side incidence surface to the horizontal plane.

3. The lens of claim 2, wherein the first included angle of incidence is 5 to 30 degrees.

4. The lens of claim 1 wherein the first included exit angle is greater than the second included exit angle.

5. The lens of claim 4, wherein the first exit straight angle is 10 to 40 degrees and the second exit included angle is 5 to 30 degrees.

6. The lens of claim 1 wherein the first exit surface is planar, the second exit surface is planar, and the intermediate exit surface is an arcuate convex surface.

7. The lens of claim 1, wherein the first and second total reflecting surfaces are each paraboloids.

8. A light bias distribution lamp, comprising a lamp body, a light emitting module and the lens of any one of claims 1 to 7, wherein the lamp body is elongated, the lamp body is provided with a light emitting groove extending in a length direction and having a light outlet, the light emitting module is mounted in the light emitting groove, the lens cover is disposed on the light emitting module, and the incident light groove is disposed opposite to the light emitting module.

9. The polarized light fixture of claim 8 wherein a side wall of the light-emitting recess is provided with a reflector, wherein the reflector is provided on a side adjacent to the first total reflecting surface.

10. A biased light distribution lamp as claimed in claim 9 wherein the reflector is provided with a reflective surface extending along the length of the light emitting recess and extending from adjacent the light exit opening of the light emitting recess to adjacent the lens.

11. A biased light fixture as claimed in claim 10 wherein said reflective surface is arcuate in shape from proximate to distal to said lens.

12. The light deflection and distribution lamp according to claim 8, wherein the light emitting module comprises an elongated circuit board and a plurality of light sources mounted on the circuit board, the plurality of light sources being arranged at intervals along a length direction of the circuit board.