Optical system for functional multiplexing and vehicle light
By designing an interlaced total reflection surface structure in the headlights, the problems of low optical efficiency and poor illumination uniformity of existing headlights have been solved, achieving efficient and uniform optical effects and improving driving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
Existing vehicle lights have limited functionality, low optical efficiency, and poor illumination uniformity, resulting in uneven light distribution and affecting driving safety.
The optical system designed for multiple functions employs a first light-incident unit and a second light-incident unit, which are arranged alternately on the light guide structure through different total reflection surfaces. This ensures that the light color of each function hits the corresponding total reflection surface, eliminating defocusing and allowing two functions to share a single light-emitting surface.
It improves optical efficiency, ensures uniform illumination of the light-emitting surface, enhances the uniformity of headlight illumination and light pattern effect, and improves driving safety.
Smart Images
Figure CN224414968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting technology, and in particular to a multifunctional optical system and automotive lighting. Background Technology
[0002] In recent years, consumers have increasingly higher demands for the lighting effects of vehicle lights. Existing vehicle lights, with their limited functionality, cannot meet these needs. Traditional vehicle light projects often employ a dual-function structure. Because the LED light sources for both functions share a single optical element, and the incident light element has only one focal point, at least one LED of each color needs to be placed out of focus. This affects the optical efficiency, lighting uniformity, and light pattern of the vehicle light. Specifically, defocusing leads to uneven light distribution, resulting in uneven spots or streaks of brightness, and inconsistent lighting effects, impacting driver visibility and driving safety. Furthermore, the low luminous efficiency also limits the overall performance of the vehicle light. Utility Model Content
[0003] The technical problem to be solved by this utility model is: in order to solve the technical problems of low optical efficiency and poor illumination uniformity caused by defocus in the prior art, this utility model provides a multifunctional optical system and vehicle lamp, which has the beneficial effects of high luminous efficiency and uniform illumination.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a functionally multiplexed optical system, which includes: a light-incident structure, wherein the light-incident structure includes a first light-incident unit and a second light-incident unit;
[0005] A light guide structure includes a total reflection surface and a light emission surface, wherein the total reflection surface and the light emission surface are opposite ends of the light guide structure, the total reflection surface includes a plurality of first total reflection surfaces and a plurality of second total reflection surfaces, the plurality of first total reflection surfaces and the plurality of second total reflection surfaces are arranged alternately, and the first light incident unit and the second light incident unit are both located on the end of the light guide structure where the total reflection surface is provided, and are arranged opposite to each other on both sides of the light guide structure;
[0006] The light rays incident through the first incident light unit irradiate the first total reflection surface, and after total reflection by the first total reflection surface, the light rays propagate toward the light emitting surface and are emitted.
[0007] The light rays incident through the second light-incident unit strike the second total reflection surface. After total reflection, the light rays propagate towards the light-emitting surface and are emitted. Thus, by designing two different total reflection surfaces with different structures for the first and second light-incident units on a single light guide structure, the light color of each function is ensured to strike its corresponding total reflection surface, eliminating defocusing and allowing both functions to share a single light-emitting surface.
[0008] Furthermore, the first total internal reflection surface and the second total internal reflection surface are arranged in an "X" shape, with the first light-incident unit and the second light-incident unit respectively positioned above and below the light guide structure. Thus, the first total internal reflection surface can receive light emitted from the first light-incident unit from above the light guide structure, and the second total internal reflection surface can receive light emitted from the second light-incident unit from below the light guide structure.
[0009] Furthermore, the first total reflection surface forms an angle α1 with the incident light direction, and the angle α1 ranges from 40° to 50°.
[0010] Furthermore, the second total reflection surface forms an angle α2 with the incident light direction, and the angle α2 ranges from 40° to 50°.
[0011] Furthermore, the longitudinal projection distance of the first total reflection surface is greater than or equal to the longitudinal projection distance of the light-emitting surface, and the longitudinal projection distance of the second total reflection surface is greater than or equal to the longitudinal projection distance of the light-emitting surface. Therefore, this design ensures that the light-emitting surface is uniformly illuminated.
[0012] Furthermore, the adjacent first total reflection surface and second total reflection surface are connected by a connecting surface.
[0013] Furthermore, both the first total reflection surface and the second total reflection surface are provided with light distribution patterns.
[0014] Furthermore, both the first light-incident unit and the second light-incident unit adopt a rotating condenser structure or a stretching condenser structure.
[0015] Furthermore, the light-emitting surface is provided with a light distribution pattern.
[0016] A vehicle light, comprising a functionally multiplexed optical system as described in any of the preceding claims.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] (1) This utility model designs two total reflection surfaces with different structures for the first light-incident unit and the second light-incident unit with two functions on a light guide structure, so that the light color of each function hits the corresponding total reflection surface, eliminating the defocus phenomenon and realizing that the two functions share a light-emitting surface.
[0019] (2) The present invention arranges the first total reflection surface and the second total reflection surface in an “X” shape. The first total reflection surface can receive the light emitted from the top of the light guide structure by the first light-incident unit, and the second total reflection surface can receive the light emitted from the bottom of the light guide structure by the second light-incident unit.
[0020] (3) The longitudinal projection distance of the first total reflection surface and the second total reflection surface of this utility model is greater than or equal to the longitudinal projection distance of the light-emitting surface, ensuring that the light-emitting surface is uniformly illuminated. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Figure 1 This is a schematic diagram of the structure of the optical system for functional reuse in Example 1;
[0023] Figure 2 for Figure 1 The front view;
[0024] Figure 3 for Figure 1 Rear view;
[0025] Figure 4 This is a partial structural schematic diagram of the total reflection surface in Example 1;
[0026] Figure 5 This is the optical path diagram for Example 1.
[0027] In the figure: 1. First light-incident unit; 2. Second light-incident unit; 3. Light guide structure; 4. Total reflection surface; 5. Light-emitting surface; 6. First total reflection surface; 7. Second total reflection surface. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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 utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] like Figures 1 to 5 The diagram shows a preferred embodiment of the present invention. This embodiment features a functionally multiplexed optical system, comprising: a light-incident structure and a light-guiding structure 3. The light-incident structure includes a first light-incident unit 1 and a second light-incident unit 2. The light-guiding structure 3 includes a total reflection surface 4 and a light-emitting surface 5, with the total reflection surface 4 and the light-emitting surface 5 forming opposite ends of the light-guiding structure 3. The total reflection surface 4 includes multiple first total reflection surfaces 6 and multiple second total reflection surfaces 7, arranged alternately. The first light-incident unit 1 and the second light-incident unit 2 are both located on the end of the light-guiding structure 3 where the total reflection surface 4 is located, and are positioned opposite each other on both sides of the light-guiding structure 3. Thus, by designing two different total reflection surfaces 4 on a single light-guiding structure 3 for the first light-incident unit 1 and the second light-incident unit 2 for two functions, the light color of each function is projected onto its corresponding total reflection surface 4, eliminating defocusing and allowing two functions to share a single light-emitting surface 5.
[0032] In this embodiment, the first total reflection surface 6 and the second total reflection surface 7 are arranged in an "X" shape, and the first light-incident unit 1 and the second light-incident unit 2 are respectively disposed above and below the light guide structure 3. Thus, the first total reflection surface 6 and the second total reflection surface 7 are arranged in an "X" shape, allowing the first total reflection surface 6 to receive light emitted from the first light-incident unit 1 from above the light guide structure 3, and the second total reflection surface 7 to receive light emitted from the second light-incident unit 2 from below the light guide structure 3.
[0033] In this embodiment, the first total reflection surface 6 forms an angle α1 with the incident light direction, and the angle α1 ranges from 40° to 50°.
[0034] In this embodiment, the second total reflection surface 7 forms an angle α2 with the incident light direction, and the angle of α2 ranges from 40° to 50°.
[0035] In this embodiment, the longitudinal projection distance of the first total reflection surface 6 is greater than or equal to the longitudinal projection distance of the light-emitting surface 5, and the longitudinal projection distance of the second total reflection surface 7 is greater than or equal to the longitudinal projection distance of the light-emitting surface 5. Therefore, this design ensures that the light-emitting surface 5 is uniformly illuminated.
[0036] In this embodiment, the adjacent first total reflection surface 6 and second total reflection surface 7 are connected by a connecting surface.
[0037] In this embodiment, both the first total reflection surface 6 and the second total reflection surface 7 are provided with light distribution patterns.
[0038] In this embodiment, a light distribution pattern is provided on the light-emitting surface 5.
[0039] In this embodiment, the first light-incident unit 1 includes a plurality of first light-incident ends, and the second light-incident unit 2 includes a plurality of second light-incident ends.
[0040] Specifically, the first and second light-incident ends can adopt a rotating condenser structure, a stretched condenser structure, or other condenser structures, with the aim of collimating the light rays.
[0041] In this embodiment, the functionally multiplexed optical system further includes: a first light source and a second light source. The first light source is disposed at the focal point of the first light-receiving unit 1, and the second light source is disposed at the focal point of the second light-receiving unit 2. The light colors of the first light source and the second light source are different from each other.
[0042] The optical path principle of this embodiment is as follows:
[0043] The light emitted by the first light source is incident on the first total reflection surface 6 after passing through the first light incident unit 1. After total reflection by the first total reflection surface 6, the light propagates towards the light exiting surface 5 and is emitted. The light emitted by the second light source is incident on the second total reflection surface 7 after passing through the second light incident unit 2. After total reflection by the second total reflection surface 7, the light propagates towards the light exiting surface 5 and is emitted.
[0044] Example 2: A vehicle light including a functionally multiplexed optical system as described in any of the above embodiments.
[0045] Compared with the prior art, the beneficial effects of this utility model are:
[0046] (1) This utility model designs two total reflection surfaces 4 with different structures on a light guide structure 3 for the first light-incident unit 1 and the second light-incident unit 2 for two functions, so that the light color of each function hits the corresponding total reflection surface 4, eliminating the defocus phenomenon and realizing that the two functions share a light-emitting surface 5.
[0047] (2) In this utility model, the first total reflection surface 6 and the second total reflection surface 7 are arranged in an "X" shape. The first total reflection surface 6 can receive the light emitted from the top of the first light-incident unit 1 from the light guide structure 3, and the second total reflection surface 7 can receive the light emitted from the bottom of the second light-incident unit 2 from the light guide structure 3.
[0048] (3) The longitudinal projection distance of the first total reflection surface 6 and the second total reflection surface 7 of this utility model is greater than or equal to the longitudinal projection distance of the light-emitting surface 5, ensuring that the light-emitting surface 5 is uniformly illuminated.
[0049] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.
Claims
1. A functionally multiplexed optical system, characterized by, include: The light-incident structure includes a first light-incident unit (1) and a second light-incident unit (2); A light guide structure (3) includes a total reflection surface (4) and a light emitting surface (5). The total reflection surface (4) and the light emitting surface (5) are opposite ends of the light guide structure (3). The total reflection surface (4) includes multiple first total reflection surfaces (6) and multiple second total reflection surfaces (7). The multiple first total reflection surfaces (6) and multiple second total reflection surfaces (7) are arranged alternately. The first light-incident unit (1) and the second light-incident unit (2) are both located on one end of the light guide structure (3) where the total reflection surface (4) is provided, and are arranged opposite to each other on both sides of the light guide structure (3). The light rays incident through the first light-incident unit (1) irradiate the first total reflection surface (6), and after total reflection by the first total reflection surface (6), the light rays propagate toward the light-out surface (5) and are emitted. The light rays incident through the second light-incident unit (2) irradiate the second total reflection surface (7), and after total reflection by the second total reflection surface (7), the light rays propagate toward the light-out surface (5) and are emitted.
2. The functionally multiplexed optical system of claim 1, wherein, The first total reflection surface (6) and the second total reflection surface (7) are arranged in an "X" shape, and the first light-incident unit (1) and the second light-incident unit (2) are respectively disposed above and below the light guide structure (3).
3. The functionally multiplexed optical system of claim 1, wherein, The first total reflection surface (6) forms an angle α1 with the incident light direction, and the angle range of α1 is 40° to 50°.
4. The functionally multiplexed optical system as described in claim 1, characterized in that, The second total reflection surface (7) forms an angle α2 with the incident light direction, and the angle range of α2 is 40° to 50°.
5. The functionally multiplexed optical system as described in claim 1, characterized in that, The longitudinal projection distance of the first total reflection surface (6) is greater than or equal to the longitudinal projection distance of the light-emitting surface (5), and the longitudinal projection distance of the second total reflection surface (7) is greater than or equal to the longitudinal projection distance of the light-emitting surface (5).
6. The functionally multiplexed optical system as described in claim 1, characterized in that, The adjacent first total reflection surface (6) and second total reflection surface (7) are connected by a connecting surface.
7. The functionally multiplexed optical system as described in claim 1, characterized in that, Both the first total reflection surface (6) and the second total reflection surface (7) are provided with light distribution patterns.
8. The functionally multiplexed optical system as described in claim 1, characterized in that, Both the first light-incident unit (1) and the second light-incident unit (2) adopt a rotating condenser structure or a stretching condenser structure.
9. The functionally multiplexed optical system as described in claim 1, characterized in that, The light-emitting surface (5) is provided with a light distribution pattern.
10. A vehicle light, characterized in that, Includes the functionally multiplexed optical system as described in any one of claims 1 to 9.