结构紧凑的车灯光学系统
By introducing a reflection module and imaging surface into the vehicle headlight optical system, the problem of uneven light source energy is solved, resulting in a more uniform light distribution and a compact spatial layout, thus improving the lighting effect of the headlights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-17
AI Technical Summary
In existing automotive lighting optical systems, there is a significant energy difference between the central and edge regions during the illumination process, resulting in low illumination uniformity of the collimation unit.
The system employs a compact automotive lighting optical system, including a collimation unit, a reflection unit, and an imaging unit. The reflection module is formed in a parabolic shape, reflecting and diffusing light through the reflection module. Combined with the imaging surface, light distribution projection is performed, reducing the area occupied by each unit and optimizing the spatial layout.
It improves the uniformity of light illumination, reduces the area occupied by the optical system, achieves a more compact spatial layout, and enhances the overall performance of the optical system.
Smart Images
Figure CN224516560U_ABST
Abstract
Claims
1. A compact structured vehicle lamp optical system characterized by, include: Light source (1); Collimation unit (2), the collimation unit (2) is disposed in the light emission direction of the light source (1), the collimation unit (2) is used to collimate the light emitted by the light source (1); A reflection unit (3) is located in the light-emitting direction of the collimating unit (2), and the reflection unit (3) includes multiple reflection modules; The reflection module is used to reflect and diffuse the collimated light received by the collimation unit (2), and form a virtual focus on the backward extension line of the light. It also includes an imaging unit (4), which is located in the light-emitting direction of the reflection unit (3). The imaging unit (4) includes multiple imaging surfaces, and the number of imaging surfaces is multiple. Each of the multiple imaging surfaces corresponds to a multiple reflection module. Each of the multiple imaging surfaces includes a second contour line in a vertical plane. The second contour line has a first focal point. The first focal point of the imaging surface is located near or coincides with the defocus formed by its corresponding reflection module. The reflection module is used to form the required light distribution near the defocus. The imaging surface is used to project the light distribution near the first focal point into an image. It also includes a thick-walled component, on which the collimating unit (2), the reflecting unit (3) and the imaging unit (4) are all formed, and the light emitted from the collimating unit (2) and the reflecting unit (3) propagates within the thick-walled component.
2. The compact structured vehicle lamp optical system of claim 1, wherein, The reflection module includes a first contour line in a vertical plane. The first contour line is at least partially parabolic and has a second focal point. The first contour line is convex to the light emission direction of the reflection unit (3).
3. The compact structured vehicle lamp optical system of claim 2, wherein, The reflection module is formed by extending the first contour line along its normal direction or by rotating the first contour line around its own optical axis.
4. The compact structured vehicle lamp optical system of claim 3, wherein, The imaging surface is either a refractive surface or a reflective surface.
5. The compact structured vehicle lamp optical system of claim 4, wherein, A diffusion pattern is formed on the imaging surface.
6. The compact structured vehicle lamp optical system of claim 5, wherein, The diffusion patterns on the multiple imaging surfaces may be the same or different.
7. The compact structured vehicle lamp optical system of claim 1, wherein, The collimation unit (2), reflection unit (3) and imaging unit (4) are integrally formed.
8. The compact structured vehicle lamp optical system of claim 1, wherein, The collimation unit (2) is a condenser, a reflector, or a lens.