Optical part capable of achieving light distribution type conversion through overturning

Abstract

The utility model discloses an optical piece capable of realizing light distribution type conversion by overturning, which comprises a lens body, a plurality of small lenses arranged in a rectangular array are arranged on the lens body, one side surface of the lens body is a surface A, the other side surface of the lens body is a surface B. One side of each small lens positioned on the surface A is provided with a first lens part, and the other side of each small lens positioned on the surface B is provided with a second lens part. A second lens part is arranged on one side, positioned on the B surface, of the small lens; when the surface B is the light incident surface, light rays are symmetrically emitted on the surface A after passing through the lens body, and when the surface A is the light incident surface, the light rays are asymmetrically emitted on the surface B after passing through the lens body, so that switching between symmetrical light distribution and asymmetrical light distribution can be realized only by overturning the lens body, the cost of a lamp is reduced, and the service life of the lamp is prolonged. And the lamp can be more compact.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical components, and particularly relates to an optical component whose light distribution type can be changed by flipping. Background Technique

[0002] With the continuous development of lighting technology, people are no longer satisfied with a single fixed lighting mode, but can adjust the angle according to the scene needs to achieve the effective utilization of light.

[0003] The mainstream way to adjust the angle in the market is to change the position of the lens to adjust the distance from the light source to the lens, so as to achieve the change of the light-emitting angle. This often makes the size of the lamp larger, the structure not compact, the optical efficiency of the lens low, and the cost high. At the same time, the angle can only maintain symmetric light distribution and cannot meet the needs of asymmetric light distribution scenarios. Content of the Utility Model

[0004] The purpose of the utility model is to provide an optical component whose light distribution type can be changed by flipping to solve the problems put forward in the above background technique. An optical component whose light distribution type can be changed by flipping provided by the utility model has the characteristic that the symmetric light distribution and the asymmetric light distribution can be switched only by flipping the lens.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an optical component whose light distribution type can be changed by flipping, including a lens body, on which there are a number of small lenses arranged in a rectangular array. One side of the lens body is the A surface, and the other side is the B surface. Among them, on the side of the small lens located on the A surface, there is a first lens part, and on the side of the small lens located on the B surface, there is a second lens part; the first lens part includes a circular groove, and inside the circular groove, there is a first circular convex surface; the second lens part includes an arc-shaped protrusion, on which there is a frustum-shaped groove, and inside the frustum-shaped groove, there is a second circular convex surface; the diameter of the mouth part of the frustum-shaped groove is larger than the internal diameter.

[0006] In order to cooperate with the positioning holes on the light source board to achieve the rapid positioning of the lens body, further, on one side edge of the A surface, there are two first positioning pins; on the other side edge of the B surface, there are two second positioning pins.

[0007] In order to be used for installing the lens body, further, on the edge of the lens body, there are a number of mounting holes.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. When the B surface is the light incident surface of the present utility model, after the light passes through the lens body, it emits light symmetrically on the A surface. When the A surface is the light incident surface, after the light passes through the lens body, it emits light asymmetrically on the B surface. Therefore, by simply flipping the lens body, the switching between symmetric light distribution and asymmetric light distribution can be achieved, reducing the cost of the lamp and making the lamp more compact;

[0010] 2. The present utility model has only one layer of optical structure, effectively reducing the loss of light flux;

[0011] 3. On one side edge of the A surface of the present utility model, there are two first positioning pins, and on the other side edge of the B surface, there are two second positioning pins, which are convenient for cooperating with the positioning holes on the light source board to achieve rapid positioning of the lens body. Description of the Drawings

[0012] Figure 1 and 2 are all structural schematic diagrams of the present utility model;

[0013] Figure 3 is a cross-sectional structural schematic diagram of the small lens of the present utility model;

[0014] Figure 4 is a schematic diagram of light refraction when the B surface of the present utility model is the light incident surface;

[0015] Figure 5 is a light distribution schematic diagram when the B surface of the present utility model is the light incident surface;

[0016] Figure 6 is a schematic diagram of light refraction when the A surface of the present utility model is the light incident surface;

[0017] Figure 7 is a light distribution schematic diagram when the A surface of the present utility model is the light incident surface;

[0018] In the figure: 1. Lens body; 2. First positioning pin; 3. A surface; 4. Small lens; 41. Circular groove; 42. First circular convex surface; 43. Arc-shaped protrusion; 44. Circular truncated cone groove; 45. Second circular convex surface; 5. Mounting hole; 6. B surface; 7. Second positioning pin. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] Please refer to Figure 1-7 , the present utility model provides the following technical solutions: An optical component that realizes the transformation of the light distribution type by flipping, including a lens body 1, on which there are several small lenses 4 arranged in a rectangular array. One side of the lens body 1 is the A surface 3, and the other side is the B surface 6. Among them, on the side of the small lens 4 located on the A surface 3, there is a first lens part, and on the side of the small lens 4 located on the B surface 6, there is a second lens part. The first lens part includes a circular groove 41, and inside the circular groove 41, there is a first convex spherical surface 42. The second lens part includes an arc-shaped protrusion 43, on which there is a frustum-shaped groove 44, and inside the frustum-shaped groove 44, there is a second convex spherical surface 45. The diameter of the mouth of the frustum-shaped groove 44 is larger than the internal diameter.

[0022] By adopting the above technical solutions, when the B surface 6 is the light incident surface in the present utility model, after the light passes through the lens body 1, it emits light symmetrically on the A surface 3. When the A surface 3 is the light incident surface, after the light passes through the lens body 1, it emits light asymmetrically on the B surface 6. Thus, by simply flipping the lens body 1, the switching between symmetric light distribution and asymmetric light distribution can be realized, reducing the cost of the lamp and making the lamp more compact; the present utility model has only one layer of optical structure, effectively reducing the loss of light flux.

[0023] Embodiment 2

[0024] The difference between this embodiment and Embodiment 1 is: Specifically, there are two first positioning pins 2 on one side edge of the A surface 3, and two second positioning pins 7 on the other side edge of the B surface 6.

[0025] By adopting the above technical solutions, it is convenient to cooperate with the positioning holes on the light source board to realize the rapid positioning of the lens body 1.

[0026] Embodiment 3

[0027] The difference between this embodiment and Embodiment 1 is: Specifically, there are several mounting holes 5 on the edge of the lens body 1.

[0028] By adopting the above technical solutions, they are used for mounting the lens body 1.

[0029] In summary, when the B surface 6 is the light incident surface of the present utility model, after the light passes through the lens body 1, it emits light symmetrically on the A surface 3. When the A surface 3 is the light incident surface, after the light passes through the lens body 1, it emits light asymmetrically on the B surface 6. Therefore, by simply flipping the lens body 1, the switching between symmetric light distribution and asymmetric light distribution can be realized, reducing the cost of the lamp and making the lamp more compact. The present utility model has only one layer of optical structure, effectively reducing the loss of light flux. On one side edge of the A surface 3 of the present utility model, two first positioning pins 2 are provided, and on the other side edge of the B surface 6, two second positioning pins 7 are provided, which are convenient for cooperating with the positioning holes on the light source board to realize the rapid positioning of the lens body 1.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An optical component that achieves light distribution type change by flipping, characterized in that: The lens body comprises a lens body, on which a plurality of small lenses in a rectangular array are arranged, one side of the lens body is an A surface, and the other side of the lens body is a B surface, wherein a first lens portion is arranged on a side of the small lens located on the A surface, and a second lens portion is arranged on a side of the small lens located on the B surface; The first lens portion comprises a circular groove, and a first circular convex surface is arranged inside the circular groove; The second lens portion comprises an arc-shaped protrusion, a truncated cone groove is provided on the arc-shaped protrusion, and a second convex surface is provided inside the truncated cone groove; The diameter of the truncated cone notch portion is larger than the inner diameter.

2. The optical component for realizing light distribution type change by flipping according to claim 1, characterized in that: Two first positioning pins are arranged on one side of the A surface.

3. The optical component for realizing light distribution type change by flipping according to claim 2, characterized in that: Two second positioning pins are arranged on the other side of the B surface.

4. The optical component for realizing light distribution type change by flipping according to claim 1, characterized in that: A plurality of mounting holes are arranged on the edge of the lens body.

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