High-uniformity thick-wall structure

Abstract

The utility model discloses a thick-wall structure with high uniformity, which comprises a thick-wall piece, the upper side of one end of the thick-wall piece is provided with a light gathering part corresponding to a light source, and the end face of the other end of the thick-wall piece is provided with a pattern surface capable of diffusing light. One end of the thick-wall part is provided with a triangular prism structure which is used for carrying out total reflection on light twice so as to reflect the light to the pattern surface; and the thick-wall piece is also provided with an incident light reflecting surface which is used for totally reflecting light emitted by the light condensing part to the triangular prism structure below the light condensing part. Compared with the prior art, the thick-wall piece can perform total reflection on light for three times to greatly increase the propagation stroke of the light, so that the light emitting uniformity of the thick-wall piece is improved, the uniformity effect of the light passing through the thick-wall piece is excellent, meanwhile, the length of the thick-wall piece can be reduced to be less than 35mm on the premise that the high light emitting uniformity is ensured, and the light emitting efficiency is improved. The thickness of the thick-wall piece is properly increased, so that the thick-wall piece can be applied to the automobile lamp with limited length and installation size space.

Description

Technical field:

[0001] The utility model relates to the technical field of vehicle lamp accessories, and particularly refers to a thick-walled structure with high uniformity. The light is first collected by a focusing portion, and the light is totally reflected by a triangular structure using a light-entering reflection surface. The triangular structure then totally reflects the light twice to a patterned surface for diffusion, and then emits the light out of a thick-walled outer part, making the light extremely uniform. Background technology:

[0002] As LEDs become increasingly common as vehicle lighting sources, more and more headlights are pursuing more innovative designs, in addition to meeting basic regulatory requirements. The implementation of these lamp functions is also becoming increasingly diverse, with thick-walled concentrators being a common approach.

[0003] A Chinese utility model patent, granted with the publication number CN207065463U, discloses a thick-walled concentrator luminous structure for automotive lamps. This structure includes an LED circuit board, LED particles, and a corner thick-walled concentrator. The inner end of the corner thick-walled concentrator has a Fresnel pattern for generating parallel light, and a total reflection oblique plane at the corner. The outer surface of the corner thick-walled concentrator has a pattern that diffuses light. The LED particles are fixed to the LED circuit board and aligned with the inner end of the corner thick-walled concentrator. This thick-walled concentrator luminous structure achieves a more uniform lighting effect, avoiding the LED graininess and dark areas associated with traditional designs. It effectively addresses the visible appearance issues of traditional direct-beam concentrator circuit boards and offers high energy efficiency.

[0004] The aforementioned thick-walled concentrator luminous structure for headlights also suffers from the following drawbacks: the corner thick-walled concentrator in the headlight thick-walled concentrator reflects light only through a single total reflection oblique plane. That is, after light is emitted by the LED particles, it is reflected only once by the total reflection oblique plane before exiting the corner thick-walled concentrator. This improves light uniformity only to a certain extent, but due to the small number of light reflections and the short propagation distance, the light uniformity effect is still lacking. Furthermore, the thinness of the thick-walled concentrator luminous structure requires it to be sufficiently long to achieve a certain degree of light uniformity, which makes it unsuitable for headlights with limited mounting space.

[0005] In view of this, the inventors propose the following technical solutions. Utility model content:

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a thick-walled structure with high uniformity.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: the thick-walled structure with high uniformity includes a thick-walled part, the upper side of one end of the thick-walled part is provided with a focusing portion corresponding to the light source, the end face of the other end of the thick-walled part is provided with a patterned surface capable of diffusing light, and one end of the thick-walled part is provided with a triangular structure for totally reflecting the light twice to reflect the light to the patterned surface; the thick-walled part is also provided with a light incident reflection surface below the focusing portion for totally reflecting the light incident from the focusing portion to the triangular structure.

[0008] Furthermore, in the above technical solution, the triangular structure includes a first reflecting surface and a second reflecting surface that are distributed perpendicular to each other, the first reflecting surface is connected to the upper end surface of the thick-walled part, the second reflecting surface is connected to the lower end surface of the thick-walled part, and the second reflecting surface corresponds to the patterned surface, and the first reflecting surface corresponds to the incident light reflecting surface.

[0009] Furthermore, in the above technical solution, the first reflecting surface is a plane, and the second reflecting surface is formed by connecting a plurality of first arc-shaped concave surfaces distributed on a plane.

[0010] Furthermore, in the above technical solution, the light incident reflection surface is an outwardly convex arc surface, which includes a plurality of sub-reflection surfaces distributed in an array and connected to each other, and the light incident reflection surface is located above the patterned surface.

[0011] Furthermore, in the above technical solution, the light focusing portion is an outwardly convex arc-shaped light incident surface, and the arc-shaped light incident surface is connected to the light incident reflecting surface.

[0012] Furthermore, in the above technical solution, the triangular structure includes a first reflecting surface and a second reflecting surface that are distributed perpendicular to each other, the first reflecting surface is connected to the upper end surface of the thick-walled part, the second reflecting surface is connected to the lower end surface of the thick-walled part, and the second reflecting surface corresponds to the light incident reflecting surface, and the first reflecting surface corresponds to the patterned surface.

[0013] Furthermore, in the above technical solution, the second reflecting surface is a plane, and the first reflecting surface is formed by connecting a plurality of second arc-shaped concave surfaces distributed on a plane.

[0014] Furthermore, in the above technical solution, the light incident reflection surface is an inclined plane protruding outward, and the light incident reflection surface is located below the patterned surface.

[0015] Furthermore, in the above technical solution, the light focusing portion includes a circular convex portion, the circular convex portion has a circular groove, and the bottom of the circular groove has a spherical surface protruding upward.

[0016] Furthermore, in the above technical solution, the patterned surface includes a plurality of bumps distributed in an array and having convex arc surfaces on the outer surfaces, the bumps in each row are distributed in a stepped manner, and the bumps in each column are also distributed in a stepped manner.

[0017] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: when the present invention is working, after the light source emits light, the light is incident into the inside of the thick-walled part through the focusing part of the thick-walled part, and first emitted to the light incident reflection surface, which totally reflects the light to the triangular structure, and then the triangular structure totally reflects the light twice to reflect the light to the patterned surface, and finally diffuses the light through the patterned surface and refracts it out. That is to say, the thick-walled part in the present invention can totally reflect the light three times, which greatly increases the propagation distance of the light, thereby improving the luminous uniformity of the thick-walled part, so that the light uniformity after passing through the thick-walled part is excellent, and at the same time, the length of the thick-walled part can be reduced (can be reduced to less than 35mm) while ensuring high luminous uniformity, and the thickness of the thick-walled part can be appropriately increased, so that it can be applied to car lights with limited length installation space. Description of the drawings:

[0018] Figure 1 It is a three-dimensional diagram of the first embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0020] Figure 3 It is a three-dimensional diagram of another perspective of the first embodiment of the present invention;

[0021] Figure 4 yes Figure 3 A partial enlarged view of part B;

[0022] Figure 5 This is a schematic diagram of the propagation path of the luminous light in the first embodiment of the present utility model;

[0023] Figure 6 It is a three-dimensional diagram of the second embodiment of the present utility model;

[0024] Figure 7 yes Figure 6 A partial enlarged view of part C in the middle;

[0025] Figure 8 This is a three-dimensional diagram of another perspective of the second embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the light propagation path of the second embodiment of the present utility model. Specific implementation method:

[0027] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0028] See Figure 1-9As shown, a thick-walled structure with high uniformity can be used on a car 3. The thick-walled structure with high uniformity includes a thick-walled part 1. The upper side of one end of the thick-walled part 1 is provided with a focusing portion 11 corresponding to the light source 2, and the end face of the other end of the thick-walled part 1 is provided with a patterned surface 12 capable of diffusing light. During specific use, after the light source 2 emits light, the light is incident on the inside of the thick-walled part 1 through the focusing portion 11, and is emitted from the patterned surface 12 after reflection. The patterned surface 12 can diffuse the light to achieve a certain purpose of uniformizing the light, making the light more uniform.

[0029] The present invention mainly makes the following improvements: a triangular structure 13 is provided at one end of the thick-walled part 1 for totally reflecting the light twice to reflect the light to the patterned surface 12; the thick-walled part 1 is also provided with a light incident reflection surface 14 below the focusing part 11 for totally reflecting the light incident from the focusing part 11 to the triangular structure 13. During operation, after the light source 2 emits light, the light is incident into the inside of the thick-walled part 1 through the focusing portion 11 of the thick-walled part 1, and first toward the light incident reflection surface 14, which totally reflects the light to the triangular structure 13, and then the triangular structure 13 totally reflects the light twice to reflect the light to the patterned surface 12, and finally diffuses and refracts it out through the patterned surface 12. That is to say, the thick-walled part 1 in the present invention can totally reflect the light three times, which greatly increases the propagation distance of the light, thereby improving the luminous uniformity of the thick-walled part 1, and making the light uniformity after passing through the thick-walled part 1 excellent. At the same time, the length of the thick-walled part 1 can be reduced (can be reduced to less than 35 mm) while ensuring high luminous uniformity, and the thickness of the thick-walled part can be appropriately increased so that it can be applied to car lights with limited length installation space.

[0030] Example 1:

[0031] Combine Figure 1-5 As shown, the triangular structure 13 includes a first reflective surface 131 and a second reflective surface 132 that are perpendicular to each other. The first reflective surface 131 is connected to the upper end surface of the thick-walled member 1, and the second reflective surface 132 is connected to the lower end surface of the thick-walled member 1. The second reflective surface 132 corresponds to the patterned surface 12, and the first reflective surface 131 corresponds to the light-incident reflective surface 14. During operation, after the light source 2 emits light, the light passes through the focusing portion 11 of the thick-walled member 1 and enters the interior of the thick-walled member 1. It first strikes the light-incident reflective surface 14, which then totally reflects the light onto the first reflective surface 131. The first reflective surface 131 then totally reflects the light onto the second reflective surface 132. Finally, the second reflective surface 132 totally reflects the light onto the patterned surface 12, achieving three total reflections. This increases the distance traveled by the light and improves the uniformity of the thick-walled member's illumination.

[0032] Among them, the first reflecting surface 131 is a plane, and the second reflecting surface 132 is formed by connecting multiple first arc-shaped concave surfaces 101 distributed in a plane. It has more reflection angles, so that multiple light rays can be reflected to the patterned surface 12 through multiple light paths, thereby further enhancing the luminous uniformity of the thick-walled part.

[0033] The incident light reflecting surface 14 is an outwardly convex curved surface, comprising a plurality of interconnected sub-reflecting surfaces 141 arranged in an array. This surface provides a wider range of reflection angles, and is located above the patterned surface 12. When light strikes the incident light reflecting surface 14, it is reflected by the multiple, curved sub-reflecting surfaces 141, allowing multiple light rays to be reflected through multiple optical paths to the first reflective surface 131, further enhancing the uniformity of light emission from the thick-walled component.

[0034] The light focusing portion 11 is an outwardly convex arc-shaped light incident surface, and the arc-shaped light incident surface is connected to the light incident reflecting surface 14 .

[0035] The patterned surface 12 includes a plurality of bumps 121 distributed in an array and having convex arc surfaces on the outer surface. The bumps 121 in each row are distributed in a stepped manner, and the bumps 121 in each column are also distributed in a stepped manner, which can achieve an excellent diffusion effect and greatly enhance the uniformity of light emission.

[0036] To sum up, when working, after the light source 2 emits light, the light is incident into the inside of the thick-walled part 1 through the focusing portion 11 of the thick-walled part 1, and first emitted to the light incident reflection surface 14, which totally reflects the light to the triangular structure 13, and then the triangular structure 13 totally reflects the light twice to reflect the light to the patterned surface 12, and finally diffuses and refracts it out through the patterned surface 12. That is to say, the thick-walled part 1 in the present invention can totally reflect the light three times, which greatly increases the propagation distance of the light, thereby improving the luminous uniformity of the thick-walled part 1, and making the light uniformity after passing through the thick-walled part 1 excellent. At the same time, the length of the thick-walled part 1 can be reduced (can be reduced to less than 35 mm) while ensuring high luminous uniformity, and the thickness of the thick-walled part can be appropriately increased so that it can be applied to car lights with limited length installation space.

[0037] Example 2:

[0038] Combine Figure 6-9 As shown, the triangular structure 13 includes a first reflecting surface 131 and a second reflecting surface 132 that are distributed perpendicular to each other. The first reflecting surface 131 is connected to the upper end surface of the thick-walled part 1, and the second reflecting surface 132 is connected to the lower end surface of the thick-walled part 1. The second reflecting surface 132 corresponds to the light incident reflecting surface 14, and the first reflecting surface 131 corresponds to the patterned surface 12.

[0039] During operation, after the light source 2 emits light, the light passes through the focusing portion 11 of the thick-walled part 1 and enters the interior of the thick-walled part 1. It is first emitted toward the light incident reflection surface 14, which then totally reflects the light to the second reflection surface 132. The second reflection surface 132 then totally reflects the light to the first reflection surface 131. Finally, the first reflection surface 131 totally reflects the light to the patterned surface 12, thereby achieving three total reflections. This increases the distance traveled by the light and improves the luminous uniformity of the thick-walled part.

[0040] The second reflecting surface 132 is a plane, and the first reflecting surface 131 is formed by connecting multiple second arc-shaped concave surfaces 102 distributed in a plane. It has more reflection angles, so that multiple light rays can be reflected to the patterned surface 12 through multiple light paths, thereby further enhancing the luminous uniformity of the thick-walled part.

[0041] The light incident reflecting surface 14 is an outwardly protruding inclined plane, and the light incident reflecting surface 14 is located below the patterned surface 12 .

[0042] The light-collecting portion 11 includes a circular convex portion 111 . The circular convex portion 111 has a circular groove 112 . The bottom of the circular groove 112 has an upwardly protruding spherical surface 113 , which has a better light-collecting performance.

[0043] To sum up, when working, after the light source 2 emits light, the light is incident into the inside of the thick-walled part 1 through the focusing portion 11 of the thick-walled part 1, and first emitted to the light incident reflection surface 14, which totally reflects the light to the triangular structure 13, and then the triangular structure 13 totally reflects the light twice to reflect the light to the patterned surface 12, and finally diffuses and refracts it out through the patterned surface 12. That is to say, the thick-walled part 1 in the present invention can totally reflect the light three times, which greatly increases the propagation distance of the light, thereby improving the luminous uniformity of the thick-walled part 1, and making the light uniformity after passing through the thick-walled part 1 excellent. At the same time, the length of the thick-walled part 1 can be reduced (can be reduced to less than 35 mm) while ensuring high luminous uniformity, and the thickness of the thick-walled part can be appropriately increased so that it can be applied to car lights with limited length installation space.

[0044] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made based on the structure, features and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A thick-walled structure with high uniformity, comprising a thick-walled member (1), wherein a light-collecting portion (11) corresponding to a light source (2) is provided on the upper side of one end of the thick-walled member (1), and a patterned surface (12) capable of diffusing light is provided on the end surface of the other end of the thick-walled member (1), characterized in that: One end of the thick-walled member (1) is provided with a triangular structure (13) for performing two total reflections on the light to reflect the light onto the patterned surface (12); The thick-walled member (1) is further provided with a light-reflecting surface (14) below the light-focusing portion (11) for totally reflecting light incident from the light-focusing portion (11) to the triangular structure (13).

2. A thick-walled structure with high uniformity according to claim 1, characterized in that: The triangular structure (13) includes a first reflecting surface (131) and a second reflecting surface (132) that are perpendicularly distributed to each other, the first reflecting surface (131) being connected to the upper end surface of the thick-walled component (1), the second reflecting surface (132) being connected to the lower end surface of the thick-walled component (1), the second reflecting surface (132) corresponding to the patterned surface (12), and the first reflecting surface (131) corresponding to the light incident reflecting surface (14).

3. The thick-walled structure with high uniformity according to claim 2, characterized in that: The first reflecting surface (131) is a plane, and the second reflecting surface (132) is formed by connecting a plurality of first arc-shaped concave surfaces (101) distributed on a plane.

4. The thick-walled structure with high uniformity according to claim 3, characterized in that: The light incident reflection surface (14) is an outwardly convex arc-shaped surface, comprising a plurality of sub-reflection surfaces (141) distributed in an array and connected to each other, and the light incident reflection surface (14) is located above the patterned surface (12).

5. The thick-walled structure with high uniformity according to claim 4, characterized in that: The light-collecting portion (11) is an outwardly convex arc-shaped light-entering surface, and the arc-shaped light-entering surface is connected to the light-entering reflecting surface (14).

6. The thick-walled structure with high uniformity according to claim 1, characterized in that: The triangular structure (13) includes a first reflecting surface (131) and a second reflecting surface (132) that are perpendicularly distributed to each other, the first reflecting surface (131) being connected to the upper end surface of the thick-walled component (1), the second reflecting surface (132) being connected to the lower end surface of the thick-walled component (1), the second reflecting surface (132) corresponding to the light incident reflecting surface (14), and the first reflecting surface (131) corresponding to the patterned surface (12).

7. The thick-walled structure with high uniformity according to claim 6, characterized in that: The second reflecting surface (132) is a plane, and the first reflecting surface (131) is formed by connecting a plurality of second arc-shaped concave surfaces (102) distributed on a plane.

8. The thick-walled structure with high uniformity according to claim 7, characterized in that: The light incident reflection surface (14) is an outwardly convex inclined plane, and the light incident reflection surface (14) is located below the patterned surface (12).

9. The thick-walled structure with high uniformity according to claim 4, characterized in that: The light-collecting portion (11) includes a circular convex portion (111), the circular convex portion (111) has a circular groove (112), and the bottom of the circular groove (112) has a spherical surface (113) that protrudes upward.

10. A thick-walled structure with high uniformity according to any one of claims 1 to 9, characterized in that: The patterned surface (12) comprises a plurality of convex blocks (121) distributed in an array and having convex arc surfaces on the outer surfaces. The convex blocks (121) in each row are distributed in a stepped manner, and the convex blocks (121) in each column are also distributed in a stepped manner.

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