Optical structure for optimizing overlooking black area of thick-wall part
By adding a textured structure to the protruding part of the thick-walled component, the black area when viewed from above is optimized, which solves the problem of uneven lighting on the thick-walled component, and achieves improved lighting uniformity and reduced cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU ANRUI OPTOELECTRONICS CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, thick-walled components have dark areas when viewed from above, resulting in uneven lighting, and the structure is complex and costly.
A textured structure is set on the protruding part of the thick-walled component to optimize the black area when viewed from above through light scattering. The upper thick-walled component is made of monochrome injection molding in one piece to simplify the optical structure.
It improves the uniformity of illumination, reduces costs, simplifies mold design and processing, and improves processing accuracy.
Smart Images

Figure CN224175011U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive lighting technology. Specifically, this utility model relates to an optical structure for optimizing the black area when viewed from above in a thick-walled component. Background Technology
[0002] When designing headlights, it is generally desirable for the position lights to appear continuous and uniform from any angle. However, due to factors such as shape and vehicle height, the lower raised area of the position lights appears white when viewed from above, and there is a dark area inside the raised area where no light is emitted, resulting in poor illumination of the position lights from a top-down perspective.
[0003] Chinese patent (publication number: 222732670U) discloses a structure for solving the problem of dark areas when viewed from above in thick-walled components. The structure includes a light source and a thick-walled component positioned directly in front of the light source for guiding light. A lens is also provided on the side of the thick-walled component near the light source, and the lens's curved surface has Fresnel patterns. However, this patent is ineffective in solving the problem of dark areas when viewed from above in thick-walled components, and its structure is complex. Utility Model Content
[0004] This utility model is designed to solve the above-mentioned problems. Its purpose is to provide an optical structure that can optimize the dark area of a thick-walled component when viewed from above. To achieve the above purpose, the technical solution adopted by this utility model is as follows: an optical structure for optimizing the dark area of a thick-walled component when viewed from above, including a decorative frame and a light source plate connected to the decorative frame. The decorative frame is connected to an upper thick-walled component, which faces the light source plate. The upper thick-walled component is provided with an optimized structure for the dark area when viewed from above.
[0005] The optimized structure of the black area from above includes a leather texture, and the upper thick-walled component has protruding thick walls at both ends, with the leather texture set on the surface of the protruding thick walls.
[0006] The front side of the upper thick-walled component is provided with a first optical pattern, and the back side of the upper thick-walled component is provided with a patterned surface.
[0007] A bracket is connected to the decorative frame, and the bracket is connected to the upper thick-walled member.
[0008] The bracket includes a first connecting plate, which is connected to a bending plate, and the bending plate abuts against the upper thick-walled member.
[0009] A lower thick-walled component is provided between the upper thick-walled component and the light source plate. The surface of the lower thick-walled component is provided with a second optical pattern, and the second optical pattern is attached to the light source plate.
[0010] The upper thick-walled component is a monochrome injection molded one-piece structure.
[0011] The technical advantages of this invention are as follows: By creating a textured surface on the protruding thick wall, the originally concentrated light is dispersed through light scattering, thus softening dark areas. This makes dark areas less noticeable when viewed from a large angle, ensuring a certain degree of uniformity in the position lights. When light propagates to the protruding thick wall, the texture scatters the light multiple times, creating light distribution in areas prone to dark areas, thus altering the light intensity distribution and softening dark areas when viewed from above. By optimizing dark areas when viewed from above by creating a textured surface on the protruding thick wall, the optical solution is simple, eliminating the need for additional lengthening of the upper thick wall component 3 and adding unnecessary particles, thereby reducing costs. The upper thick wall component does not need to be lengthened, resulting in smaller mold sizes, further reducing costs. The mold is simple, has high processing precision, and is very convenient for dimensional modifications, further reducing costs. Attached Figure Description
[0012] This manual includes the following figures, which illustrate the following:
[0013] Figure 1 This is a schematic diagram of the optical structure of an optimized thick-walled component viewed from above in the dark area.
[0014] The markings in the diagram are as follows: 1. Decorative frame; 2. Light source board; 3. Upper thick-walled component; 301. First optical pattern; 302. Patterned surface; 4. Top view of optimized black area structure; 401. Leather texture; 402. Protruding thick wall; 5. Support; 501. First connecting plate; 502. Bending plate; 6. Lower thick-walled component; 601. Second optical pattern. Detailed Implementation
[0015] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.
[0016] like Figure 1 As shown, an optical structure for optimizing the black area when viewed from above using a thick-walled component includes a decorative frame 1 and a light source plate 2 connected to the decorative frame 1. The decorative frame 1 is connected to an upper thick-walled component 3, which faces the light source plate 2. An optimized black area structure 4 is provided on the upper thick-walled component 3. The decorative frame 1 serves as a connecting frame, fixing the light source plate 2 and the upper thick-walled component 3. The light source plate 2 acts as a light source, providing illumination. The upper thick-walled component 3 is the main component for light propagation and optical processing. The optimized black area structure 4 makes the black area less noticeable when viewed from a large angle, ensuring a certain degree of uniformity in the position lights.
[0017] The optimized structure 4 for viewing the dark area from above includes a textured surface 401. The upper thick-walled component 3 has protruding thick walls 402 at both ends, with the textured surface 401 applied to the surface of these protruding thick walls 402. The protruding thick walls 402 abut against the support 5, fixing the upper thick-walled component 3 in place. A dark area will appear at the location of the protruding thick walls 402. The textured surface 401 on the protruding thick walls 402 disperses the originally concentrated light, softening the dark area and making it less noticeable when viewed from a large angle, thus ensuring a certain degree of uniformity in the position lights. When light reaches the protruding thick walls 402, the textured surface 401 scatters the light multiple times, distributing light in areas prone to forming dark areas, thus altering the light intensity distribution in those areas and softening the dark area when viewed from above. By setting a textured surface on the protruding thick-walled 402 to optimize the dark area when viewed from above, the optical solution is simple and does not require additional lengthening of the upper thick-walled part 3 or the addition of extra particles, which can reduce costs. The upper thick-walled part 3 does not need to be lengthened, the mold size is small, which further reduces costs. The mold is simple, has high processing accuracy, and is very convenient for size modification, thus reducing costs.
[0018] The upper thick-walled component 3 has a first optical pattern 301 on its front side and a patterned surface 302 on its back side. The first optical pattern 301 on the front side of the upper thick-walled component 3 optically processes the light, changing the direction and distribution of light propagation; the patterned surface 302 on the back side further processes the light through scattering and reflection, making the light distribution more uniform. The light emitted from the light source plate 2 shines on the upper thick-walled component 3, and after passing through the patterned surface 302 and the first optical pattern 301, the propagation path and distribution of the light are changed, ultimately making the light emitted more uniformly and reducing dark areas.
[0019] A bracket 5 is connected to the decorative frame 1, and the bracket 5 is connected to the upper thick-walled component 3. The bracket 5 can firmly fix the upper thick-walled component 3, ensuring the stability of the upper thick-walled component 3 in the lamp structure.
[0020] The bracket 5 includes a first connecting plate 501, to which a bent plate 502 is connected. The bent plate 502 abuts against the upper thick-walled member 3. The first connecting plate 501 is connected to the decorative frame 1, and the bent plate 502 abuts against the upper thick-walled member 3, resulting in a simple structure.
[0021] A lower thick-walled member 6 is disposed between the upper thick-walled member 3 and the light source plate 2. The surface of the lower thick-walled member 6 is provided with a second optical pattern 601, which is attached to the light source plate 2. The second optical pattern 601 on the surface of the lower thick-walled member 6 is attached to the light source plate 2, and its main function is to perform preliminary optical processing on the light emitted from the light source plate 2, so that the light is directed to the upper thick-walled member 3 at a more suitable angle and distribution, thereby helping to improve the light uniformity and optical performance of the entire optical structure.
[0022] The upper thick-walled component 3 is a single-color injection molded one-piece structure. The single-color injection molding of the upper thick-walled component 3 can avoid interface light scattering caused by traditional multi-color injection molding, improve light transmission efficiency, reduce stray light, and ensure that the light path is concentrated and projected onto the first optical pattern 301.
[0023] The role and effect of the embodiments
[0024] Texture 401 is applied to the surface of the protruding thick wall 402. Through light scattering, the originally concentrated light is dispersed, softening the dark areas and making them less noticeable when viewed from a large angle, thus ensuring a certain degree of uniformity in the position lights. When light propagates to the protruding thick wall 402, the texture 401 scatters the light multiple times, distributing light in areas that would otherwise easily form dark areas, thus changing the light intensity distribution in those areas and softening the dark areas when viewed from above. By applying texture to the surface of the protruding thick wall 402 to optimize the dark areas when viewed from above, the optical solution is simple, requiring no additional lengthening of the upper thick wall component 3 or the addition of unnecessary particles, thereby reducing costs. The upper thick wall component 3 does not need to be lengthened, resulting in a small mold size, further reducing costs. The mold is simple, has high processing precision, and is very convenient for dimensional modifications, further reducing costs.
[0025] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. An optical structure for optimizing the black area of a thick-walled component viewed from above, comprising a decorative frame (1) and a light source plate (2) connected to the decorative frame (1), characterized in that, The decorative frame (1) is connected to an upper thick-walled component (3), which faces the light source plate (2). The upper thick-walled component (3) is provided with a top-view black area optimization structure (4).
2. The optical structure for optimizing the black area of a thick-walled component when viewed from above, as described in claim 1, is characterized in that: The optimized structure (4) of the black area from above includes a texture (401), and the upper thick wall component (3) has protruding thick walls (402) at both ends, with the texture (401) disposed on the surface of the protruding thick walls (402).
3. The optical structure for optimizing the black area of a thick-walled component when viewed from above, as described in claim 1, is characterized in that: The upper thick-walled component (3) has a first optical pattern (301) on its front side and a patterned surface (302) on its back side.
4. The optical structure for optimizing the black area of a thick-walled component when viewed from above, as described in claim 1, is characterized in that: A bracket (5) is connected to the decorative frame (1), and the bracket (5) is connected to the upper thick-walled member (3).
5. The optical structure for optimizing the black area of a thick-walled component when viewed from above, as described in claim 4, is characterized in that: The bracket (5) includes a first connecting plate (501), and a bending plate (502) is connected to the first connecting plate (501). The bending plate (502) abuts against the upper thick-walled member (3).
6. The optical structure for optimizing the black area of a thick-walled component when viewed from above, as described in claim 1, is characterized in that: A lower thick-walled member (6) is provided between the upper thick-walled member (3) and the light source plate (2). The surface of the lower thick-walled member (6) is provided with a second optical pattern (601), and the second optical pattern (601) is attached to the light source plate (2).
7. The optical structure for optimizing the black area of a thick-walled component when viewed from above, as described in claim 1, is characterized in that: The upper thick-walled part (3) is a monochrome injection molded one-piece structure.
Citation Information
Patent Citations
A structure for solving the problem of dark areas in thick-walled parts when viewed from above
CN222732670U