Side projection thick-wall illumination optical structure of automobile signal lamp
By employing a honeycomb-shaped arc-shaped reflective surface and stepped reflective units in the optical design of automotive signal lights, the problems of complex structure and large space occupation of traditional signal lights have been solved, achieving a compact and efficient optical structure that improves the aesthetics and user experience of the vehicle lights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIYAN DONGFENG SANLI VEHICLE LIGHTS CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional automotive signal lights require thick-walled side-projection light guides with collimation structures, which occupy a large space and make the system complex, resulting in reduced light guide efficiency and making it difficult to meet the requirements of compact design and high efficiency.
The optical reflective surface, designed with a honeycomb arc-shaped reflective surface, combined with stepped reflective units and optical patterns, adjusts the light to a horizontal direction through the optical reflective surface, eliminating the need for a condenser or Fresnel lens, and achieving collimation and uniform distribution of light.
This design achieves a compact, efficient, and low-cost automotive signal light, reducing space requirements and improving the aesthetics and user experience of the lights.
Smart Images
Figure CN224121085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting technology, and in particular to a side-projection thick-walled lighting optical structure for automotive signal lights. Background Technology
[0002] As a crucial expression of automotive aesthetics, headlight design has become a competitive factor for consumers when making purchasing decisions. Simultaneously, the booming automotive market has provided consumers with more choices; automotive lights are no longer merely lighting tools to meet regulatory requirements, but rather interactive windows that satisfy consumers' aesthetic sensibilities. However, while designs evolve, the uniformity of headlight illumination remains a key factor in matching the design and enhancing its aesthetic appeal, placing higher demands on the optical design of headlights.
[0003] Currently, vehicle headlights are becoming increasingly compact, and the design space for headlights is becoming smaller. At the same time, the side-projection thick-walled light guide elements on traditional automotive signal lights require the setting of a collimation structure. Setting up a collimation structure requires more space, and the system is also relatively complex due to the addition of a collimation structure, which leads to a reduction in light guide efficiency, and thus needs to be optimized. Utility Model Content
[0004] To address the aforementioned problems, this invention proposes a side-projection thick-walled illumination optical structure for automotive signal lights, thereby overcoming the shortcomings of existing methods.
[0005] To achieve the purpose of this utility model, the utility model is achieved through the following technical solution: a side-projection thick-walled illumination optical structure for automotive signal lights, including a side-projection thick wall and a light source, with a light-emitting surface B provided at one end of the side-projection thick wall and an optical reflective surface provided at the other end of the side-projection thick wall, the optical reflective surface being arranged opposite to the light-emitting surface B;
[0006] The side-projection thick wall has an incident surface A at the end away from the light-emitting surface B. The incident surface A is placed between the light source and the optical reflecting surface to receive the light emitted from the light source and guide the light to the optical reflecting surface. The optical reflecting surface is set opposite to the incident surface A.
[0007] The optical reflecting surface is a parabolic arc surface, and a reflective unit is provided on the optical reflecting surface. The reflective unit is a honeycomb-shaped arrangement of several arc-shaped reflective surfaces on the surface of the optical reflecting surface. The arc-shaped reflective surfaces are used to adjust the light entering the side projection thick wall to be emitted in the horizontal direction of the side projection thick wall.
[0008] A further improvement is that the side-projection thick wall is one of the following: side-projection single thick wall, side-projection single-curve thick wall, side-projection double-curve thick wall, or side-projection multi-curve thick wall.
[0009] A further improvement is that the optical reflective surface is arranged in a stepped manner, and the optical reflective surface has multiple sets of reflective units, with each reflective unit spaced apart on the arc surface of the optical reflective surface step.
[0010] A further improvement is that the shape of the arc-shaped reflective surface is one of quadrilateral, hexagonal, or strip.
[0011] A further improvement is that: a thick-walled component is provided in front of the side projection thick wall, a light-emitting surface C is provided on one side of the thick-walled component, and an incident surface D is provided on the other side of the light-emitting surface C, with the incident surface D and the light-emitting surface B being arranged opposite to each other.
[0012] A further improvement is that the light-emitting surface B is provided with an optical pattern A.
[0013] A further improvement is that optical patterns B are provided on the light-emitting surface C and the incident surface D.
[0014] A further improvement is that the top and bottom of the side-projection thick wall are provided with decorative frames for fixing the side-projection thick wall.
[0015] A further improvement is that the top and bottom of the side-projection thick wall are provided with reinforcing ribs, which are integrally formed with the side-projection thick wall.
[0016] A further improvement is that the optical patterns A and B are one of the following: a stepped corn kernel pattern, a stepped hexagonal pattern, or a non-circular conical curve pattern without steps.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] The honeycomb-shaped arrangement of several arc-shaped reflective surfaces on the optical reflective surface reflects light entering the thick wall of the side-projection headlight. This eliminates the need for a condenser or Fresnel lens to adjust the light to a horizontal direction. Furthermore, the overall structure is simple, occupies little space, and is characterized by its thinness and high efficiency. Reducing space requirements allows for a more compact internal structure of the headlight, thus lowering costs. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a structural diagram of the light source in this utility model.
[0021] Figure 2 This is a structural diagram of the incident surface A in this utility model.
[0022] Figure 3 This is a structural diagram of the side-projection thick-walled structure in this utility model.
[0023] Figure 4 This is a structural diagram of the total reflective surface in this utility model.
[0024] Figure 5 This is a structural diagram of the arc-shaped reflective surface in this utility model.
[0025] Figure 6 This is a structural diagram of the side-projection single-thick-walled structure of this utility model.
[0026] Figure 7 This is a structural diagram of the side-projection single thick-walled component and the thick-walled component combined in this utility model.
[0027] Figure 8 This is a structural diagram of the side-projection single-crank thick-walled component and the thick-walled part in this utility model.
[0028] Figure 9 This is a structural diagram of the side-projection double-crank thick-walled component and the thick-walled part in this utility model.
[0029] Among them: 1. Side projection thick wall; 11. Incident surface A; 12. Total reflection surface; 13. Light emitting surface B; 2. Light source; 3. Reflecting unit; 31. Curved reflective surface; 4. Decorative frame; 5. Optical decoration A; 6. Thick wall component; 61. Light emitting surface C; 62. Incident surface D; 7. Optical decoration B; 8. Reinforcing rib. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0031] according to Figure 3 , 4 As shown in Figure 5, this embodiment proposes a side-projection thick-walled illumination optical structure for automotive signal lights, including a side-projection thick wall 1 and a light source 2. One end of the side-projection thick wall 1 is provided with a light-emitting surface B13, and the other end of the side-projection thick wall 1 is provided with an optical reflective surface 12. The optical reflective surface 12 and the light-emitting surface B13 are arranged opposite to each other.
[0032] The side-projection thick wall 1 has an incident surface A11 at the end away from the light-emitting surface B13. The incident surface A11 is placed between the light source 2 and the optical reflective surface 12, and is used to receive the light emitted by the light source 2 and guide the light to the optical reflective surface 12. The optical reflective surface 12 is arranged opposite to the incident surface A11.
[0033] The optical reflecting surface 12 is a parabolic arc surface. The optical reflecting surface 12 is provided with a reflective unit 3. The reflective unit 3 is a honeycomb-shaped arrangement of several arc-shaped reflective surfaces 31 on the surface of the optical reflecting surface 12. The arc-shaped reflective surfaces 31 are used to adjust the light entering the side projection thick wall 1 to be emitted in the horizontal direction of the side projection thick wall 1.
[0034] Light rays are emitted from the light source 2 and incident on the arc surface of the optical reflective surface 12 at different angles. The surface is designed according to its curvature to produce different amounts of refraction for light rays at different angles, ultimately deflecting all light rays into a direction parallel to the optical axis. The arc surface of the optical reflective surface 12, together with the arc-shaped reflective surface 31 on the surface, further reflects the edge light rays and eliminates the remaining divergence angle.
[0035] Optionally, the shape of the curved reflective surface can be one of quadrilateral, hexagonal, or strip.
[0036] Several arc-shaped reflective surfaces 31 arranged in a honeycomb pattern on the surface of the optical reflective surface 12 reflect the light entering the side-projection thick wall 1. This allows the light to be adjusted to the X-direction without the need for a condenser or Fresnel lens. Furthermore, the overall structure is simple, occupies little space, and is characterized by its thinness and high efficiency. Reducing space requirements also makes the internal structure of the headlight more compact, lowering costs.
[0037] Please see Figure 1
[0038] The optical reflective surface 12 is arranged in a stepped manner, and multiple sets of reflective units 3 are provided on the optical reflective surface 12. Each reflective unit 3 is arranged at intervals on the arc surface of the steps of the optical reflective surface 12.
[0039] In contrast, the light source 2 includes multiple LEDs, each of which is positioned on one side of each set of reflective units 3.
[0040] The LED light beam has a half-angle width of 60°, and the energy in this range accounts for more than 90%. In this design, the refraction angle of this portion of the light entering the thick wall from the air is taken into account. By adjusting the optical reflector 12, the light is collimated in the horizontal direction of the side-projected thick wall 1. The width of the optical reflector 12 is the same as the width of the light-emitting surface B13.
[0041] The side-projection thick-walled component 1 and the thick-walled component 6 are made of PC or PMMA material. Color matching can be adjusted as needed and is not limited.
[0042] According to the law of refraction, the refractive index is the ratio of the speed of light in a vacuum to the speed of light in the medium. The refractive index in a vacuum is 1, and the refractive index of air is 1.000292. These two values can be considered the same. In air, the refractive index of light is 1. The refractive index of PC material is 1.586, and that of PMMA material is 1.492. Based on the incident angle of the LED light, the refractive index of the thick-walled material, and the refractive index of air, the angle of refraction of light in the side-projected thick-walled structure 1 is calculated using the law of refraction. Then, the curvature of the optical reflecting surface 12 is adjusted according to this angle to collimate the light in the X-axis direction, which is the horizontal direction of the side-projected thick-walled structure 1.
[0043] Please see Figure 6-9 The side-projection thick wall 1 is one of the following: side-projection single thick wall, side-projection single-curve thick wall, side-projection double-curve thick wall, and side-projection multi-curve thick wall.
[0044] In a preferred embodiment, a thick-walled component 6 is provided directly in front of the side-projection thick-walled component 1. A light-emitting surface C61 is provided on one side of the thick-walled component 6, and an incident surface D62 is provided on the other side of the light-emitting surface C61. The incident surface D62 is positioned opposite to the light-emitting surface B13. Light emitted from the light-emitting surface B13 enters the thick-walled component 6 through the incident surface D62 and then exits through the light-emitting surface C61. The thick-walled component 6 added in front of the side-projection thick-walled component 1 can perform secondary optical modulation on the light scattered by the first layer, correcting uneven light distribution, making the overall light pattern smoother, softening boundaries, reducing sharp transitions at light edges, and reducing eye fatigue.
[0045] The side-projection thick-walled component 1 and the thick-walled component 6 include multiple combination methods:
[0046] Please see Figure 6 In one of the combination methods, the side-projection thick-walled 1 is a side-projection single thick-walled 1 and is set independently.
[0047] Please see Figure 7 In one of the combination methods, the side-projection thick-walled 1 is a side-projection single thick-walled component used in conjunction with the thick-walled component 6.
[0048] Please see Figure 8 In one of the combination methods, the side-projection thick wall 1 is a side-projection single-crank thick wall and is used in conjunction with the thick wall component 6. Of course, the side-projection single-crank thick wall can also be set independently.
[0049] Please see Figure 9 In one configuration, the side-projection thick-wall 1 is a side-projection double-crank thick-walled system used in conjunction with the thick-walled component 6. Of course, the side-projection double-crank thick-walled system can also be configured independently. The side-projection multi-crank thick-walled system is based on the side-projection double-crank thick-walled system, with progressively increasing thicknesses, which will not be discussed in detail here.
[0050] Please see Figure 2 , 36. In the preferred embodiment, the light-emitting surface B13 is provided with an optical pattern A5. The collimated light is emitted through the light-emitting surface B13. When passing through the optical pattern A5, the optical pattern A5 will scatter the light, so that the light is evenly distributed.
[0051] Please see Figure 7 , 8 9. In the preferred embodiment, optical patterns B7 are provided on the light-emitting surface C61 and the incident surface D62. When the light emitted through the side-projected thick wall 1 passes through the thick wall 6, it will be scattered twice by the optical patterns B7, further improving the uniformity of light distribution.
[0052] Specifically, optical patterns A and B are one of the following: a stepped corn kernel pattern, a stepped hexagonal pattern, or a non-circular conic section pattern without steps. The non-circular conic section pattern is a pattern generated using a conic quadratic curve as the boundary of the pattern, i.e., a non-rotationally symmetric optical surface constructed based on the conic section equation.
[0053] In a preferred embodiment, the top and bottom of the side-projection thick wall 1 are provided with decorative frames 4 for fixing the side-projection thick wall 1.
[0054] In a preferred embodiment, the top and bottom of the side-projection thick wall 1 are provided with reinforcing ribs 8, which are integrally formed with the side-projection thick wall 1. The reinforcing ribs 8 allow the side-projection thick wall 1 to reduce its wall thickness while maintaining strength, thus achieving a lightweight design.
[0055] How this application works:
[0056] Light emitted from light source 2 is incident on the arcuate surface of optical reflector 12 at different angles. The surface, designed according to its curvature, refracts light at different angles with varying amounts, ultimately deflecting all light rays parallel to the optical axis. Optical reflector 12, in conjunction with internal arcuate reflectors 31, further reflects edge light, eliminating residual divergence angles. Several arcuate reflectors 31, arranged in a honeycomb pattern on the surface of optical reflector 12, reflect light entering the side-projection thick wall 1. This eliminates the need for a condenser or Fresnel lens to adjust the light to the X-direction. Furthermore, the overall structure is simple, occupies little space, and exhibits thinness and high efficiency. This reduced space requirements allow for a more compact internal structure of the headlight, lowering costs.
[0057] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0058] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A side-projection thick-walled illumination optical structure for automotive signal lights, comprising a side-projection thick-walled structure (1) and a light source (2), characterized in that: One end of the side projection thick wall (1) is provided with a light-emitting surface B (13), and the other end of the side projection thick wall (1) is provided with an optical reflective surface (12). The optical reflective surface (12) is arranged opposite to the light-emitting surface B (13). The side-projection thick wall (1) has an incident surface A (11) at the end away from the light-emitting surface B (13). The incident surface A (11) is placed between the light source (2) and the optical reflective surface (12) to receive the light emitted by the light source (2) and guide the light to the optical reflective surface (12). The optical reflective surface (12) is arranged opposite to the incident surface A (11). The optical reflective surface (12) is a parabolic arc surface. The optical reflective surface (12) is provided with a reflective unit (3). The reflective unit (3) is a honeycomb-shaped arrangement of several arc-shaped reflective surfaces (31) on the surface of the optical reflective surface (12). The arc-shaped reflective surfaces (31) are used to adjust the light entering the side projection thick wall (1) to be emitted in the horizontal direction of the side projection thick wall (1).
2. The side-projection thick-walled illumination optical structure for automotive signal lights according to claim 1, characterized in that: The side-projection thick wall (1) is one of the following: side-projection single thick wall, side-projection single-curve thick wall, side-projection double-curve thick wall, and side-projection multi-curve thick wall.
3. The side-projection thick-walled illumination optical structure for automotive signal lights according to claim 1, characterized in that: The optical reflective surface (12) is arranged in a stepped manner, and the optical reflective surface (12) has multiple sets of reflective units (3), with each reflective unit (3) spaced apart on the arc surface of the steps of the optical reflective surface (12).
4. The side-projection thick-walled illumination optical structure for automotive signal lights according to claim 1, characterized in that: The arc-shaped reflective surface has a shape that is either quadrilateral, hexagonal, or strip-shaped.
5. A side-projection thick-walled illumination optical structure for automotive signal lights according to any one of claims 1-4, characterized in that: The side projection thick wall (1) is provided with a thick wall component (6) in front of it. The thick wall component (6) has a light-emitting surface C (61) on one side and an incident surface D (62) on the other side. The incident surface D (62) is arranged opposite to the light-emitting surface B (13).
6. The side-projection thick-walled illumination optical structure for automotive signal lights according to claim 5, characterized in that: The light-emitting surface B (13) is provided with optical patterns A (5).
7. The side-projection thick-walled illumination optical structure for automotive signal lights according to claim 6, characterized in that: Optical patterns B (7) are provided on the light-emitting surface C (61) and the incident surface D (62).
8. The side-projection thick-walled illumination optical structure for automotive signal lights according to claim 1, characterized in that: The top and bottom of the side-projection thick wall (1) are provided with reinforcing ribs (8), and the reinforcing ribs (8) are integrally formed with the side-projection thick wall (1).
9. The side-projection thick-walled illumination optical structure for automotive signal lights according to claim 1, characterized in that: The top and bottom of the side-projection thick wall (1) are provided with decorative frames (4) for fixing the side-projection thick wall (1).
10. The side-projection thick-walled illumination optical structure for automotive signal lights according to claim 7, characterized in that: The optical patterns A (5) and B (7) are one of the following: a stepped corn kernel pattern, a stepped hexagonal pattern, or a non-circular conical curve pattern without steps.