Structure for optimizing automobile lamp light source
By introducing optical films and thick-walled components into the headlight light source structure, and utilizing their microstructure to diffuse and rotate the light angle, the problem of uneven light distribution in traditional reflector solutions is solved, achieving uniform light coverage and improving driving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HELLA BHAP (TIANJIN) AUTOMOTIVE LIGHTING CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-08
AI Technical Summary
The problem of uneven light distribution in traditional reflector solutions is mainly due to the concentrated emission angle of point or line light sources such as LEDs, resulting in local bright spots or dark areas. Furthermore, the limitations of the precision and cost of the reflector surface processing make it difficult to achieve ideal uniformity, and complex reflective surfaces may introduce stray light or secondary reflection interference.
A reflector is placed below the light source, and an optical film is added in front of the light outlet. The optical film has a microstructure to diffuse and rotate the angle of light, forming a uniform diffused light path. It is combined with thick-walled parts and internal components and fixed by ultrasonic welding to optimize the light distribution.
By using the microstructure of the optical film to diffuse and rotate the angle of light, the problem of uneven light distribution is solved, achieving uniform light coverage and improving driving safety.
Smart Images

Figure CN224215167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle lamp structure technology, specifically to a structure for optimizing vehicle lamp light sources. Background Technology
[0002] The non-uniformity of light in traditional reflector solutions stems from the limitations of light source characteristics. Since point or line light sources such as LEDs emit light at concentrated angles, direct reflection by the reflector can easily create local bright spots or dark areas. The curved surface of the reflector needs to be precisely calculated to disperse the light, but due to limitations in processing precision, space size, or cost, it is difficult to achieve ideal uniformity. In addition, complex reflective surfaces may introduce stray light or secondary reflection interference. Therefore, relying solely on a single reflective surface of the reflector to adjust the direction of light has low tolerance for the angle of light emission. Utility Model Content
[0003] The purpose of this invention is to provide a structure for optimizing vehicle light sources and to solve the problems mentioned above.
[0004] This utility model provides the following technical solution:
[0005] A structure for optimizing vehicle light sources includes: a light-emitting element, a reflector disposed below the light-emitting element, an optical film added along the light outlet in front of the reflector, and the light path of the light-emitting element forming a reflected light path through the reflector.
[0006] The optical film has a microstructure, and the reflected light path is formed by the microstructure on the optical film to diffuse the light angle and rotate the light angle, thus forming a uniform diffused light path.
[0007] As a preferred embodiment of the above technical solution,
[0008] The light-emitting element includes a PCB board and a light source, and the PCB board is used to control and power the light source.
[0009] As a preferred embodiment of the above technical solution,
[0010] A thick-walled component is provided at the light outlet of the light source, and the light path generated by the light source passes through the thick-walled component to form a light output path.
[0011] As a preferred embodiment of the above technical solution,
[0012] The thick-walled component is an SBL thick-walled element.
[0013] As a preferred embodiment of the above technical solution,
[0014] The optical film is also equipped with an internal fitting.
[0015] As a preferred embodiment of the above technical solution,
[0016] The inner lining and the optical film are fixedly connected by ultrasonic welding.
[0017] As a preferred embodiment of the above technical solution,
[0018] The structure for optimizing the vehicle light source also includes a decorative frame for protection and a lampshade disposed at the light outlet of the diffused light path.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] In this invention, by providing an optical film, the light emitted by the light source is reflected onto the optical film by a reflector through a thick-walled component forming the light output path. The microstructure on the optical film diffuses and rotates the light, forming a uniform diffused light path, thus solving the problem of uneven light caused by relying solely on a single reflective surface of a reflector to adjust the light. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure where the reflected light path passes through the optical film to form a diffused light path.
[0023] In the diagram: 100, PCB board; 110, light source; 200, thick-walled component; 300, reflector; 400, internal component; 410, optical film; 500, decorative frame; 600, lampshade; 701, light output path; 702, reflected light path; 703, diffused light path. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figure 1-2As shown, this utility model provides a technical solution: a structure for optimizing vehicle light source, including a light source 110 for emitting light, a thick-walled member 200 located in the light emission direction of the light source 110, and a reflector 300 disposed below the thick-walled member 200. A PCB board 100 is also disposed in cooperation with the light source 110. The PCB board 100 is used to control and supply power to the light source 110. The PCB board 100 and the light source 110 form a light-emitting structure. A light emission path 701 is formed from the light source 110 through the thick-walled member 200. Then, the light emission path 701 is reflected by the reflector 300 to form a reflected light path 702. An optical film 410 is also disposed along the light emission direction of the reflected light path 702. The optical film 410 has a microstructure. An inner lining 400 is disposed in cooperation with the optical film 410. A diffusion light path 703 is formed through the microstructure of the optical film 410.
[0026] Furthermore, the thick-walled component 200 is an SBL thick-walled component. When the light emitted by the light source 110 passes through the thick-walled component 200, the light will undergo multiple refractions and scatterings inside it, which effectively enhances the uniformity of the light and improves the problem of the light emitted by the light source 110 being too bright or too dark.
[0027] Furthermore, the light source 110 can be made of LED beads.
[0028] Furthermore, such as Figure 2 As shown, the reflected light path 702 passes through the microstructure on the optical film 410, and the angle of its light output is diffused, ultimately forming the diffused light path 703, in order to change the problem in the prior art that the light reflected by the mirror 300 alone is difficult to optimize and be uniform.
[0029] Furthermore, the optical film 410 is a C-series diffusion film of BVT products, preferably C-HE15, C-HE20, C-HE30, C-HE40 or C-HE55. The surface microstructures of the optical film 410 (such as microprisms, microlenses or diffuse structures) can disperse the originally concentrated light into multi-angle scattering in order to expand the light coverage range, so as to homogenize the difference in the light emission angle at different positions and reduce local overly bright or dark areas. In addition, the reflected light path 702 output by the reflector 300 is actively deflected to the target direction through the above-mentioned specific arrangement of microstructures to compensate for the deficiencies of the curved surface design of the reflector 300 and achieve uniform overall light coverage.
[0030] Furthermore, the inner lining 400 and the optical film 410 are also fixedly connected to each other by ultrasonic welding.
[0031] Furthermore, the structure for optimizing the headlight source also includes a decorative frame 500 for protection, and a lampshade 600 located in the light-emitting direction of the diffused light path 703.
[0032] Working Principle: During operation, when the vehicle starts, the PCB board 100 provides the corresponding driving current to the light source 110, activating the light source 110. The light emitted by the light source 110 first passes through the thick-walled component 200, forming a uniform light-emitting path 701 under the action of the thick-walled component 200. The light-emitting path 701 illuminates the reflective surface of the reflector 300, and after reflection by the reflector 300, a reflected light path 702 is formed. The reflected light path 702 continues to propagate to the optical film 410. Under the action of the microstructure of the optical film 410, the light is diffused and deflected, forming a diffused light path 703. The light in the diffused light path 703 passes sequentially through the inner shroud 400 and the lamp cover 600, ultimately illuminating the road ahead with uniform and wide-coverage light, providing the driver with good visibility and improving driving safety.
[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A structure for optimizing vehicle light sources, characterized in that, include: The light-emitting element is further provided with a reflector (300) below it, and an optical film (410) is added along the light outlet in front of the reflector (300). The light path of the light-emitting element forms a reflected light path (702) through the reflector (300). The optical film (410) has a microstructure, and the reflected light path (702) is formed by the microstructure on the optical film (410) to diffuse the light angle and rotate the light angle to form a uniform diffused light path (703).
2. The structure for optimizing vehicle headlight sources according to claim 1, characterized in that: The light-emitting element includes a PCB board (100) and a light source (110), wherein the PCB board (100) is used to control and supply power to the light source (110).
3. The structure for optimizing vehicle headlight sources according to claim 2, characterized in that: A thick-walled member (200) is provided at the light outlet of the light source (110), and the light path generated by the light source (110) forms a light-emitting path (701) through the thick-walled member (200).
4. The structure for optimizing vehicle headlight sources according to claim 3, characterized in that: The thick-walled component (200) is an SBL thick-walled element.
5. The structure for optimizing vehicle headlight light sources according to claim 1, characterized in that: The optical film (410) is also equipped with an inner fitting (400).
6. The structure for optimizing vehicle lamp light sources according to claim 5, characterized in that: The inner lining (400) and the optical film (410) are fixedly connected by ultrasonic welding.
7. The structure for optimizing vehicle headlight light sources according to claim 1, characterized in that: The structure for optimizing the vehicle light source also includes a decorative frame (500) for protection, and a lampshade (600) disposed at the light outlet of the diffused light path (703).