Light guide, lighting device for a vehicle, and vehicle
By forming grooves on the sidewall of the light guide to change the direction of light propagation, the problem of optical uniformity of automotive lights is solved, thereby improving light uniformity and enhancing the aesthetic design.
CN224397642UActive Publication Date: 2026-06-23MIND ELECTRONICS APPLIANCE CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIND ELECTRONICS APPLIANCE CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
AI Technical Summary
Technical Problem
Existing automotive headlight light guides are prone to optical uniformity issues, resulting in bright lines on the light-emitting surface, and the addition of optical texture can affect the appearance and transparency.
Method used
An inwardly recessed groove is formed on the side wall of the light guide to change the direction of light propagation through diffuse reflection or scattering, increase light mixing and uniformity, and present a floating 3D effect without destroying the sense of transparency.
Benefits of technology
It improves the uniformity of light output from the light-emitting surface, reduces the risk of localized over-brightness forming bright lines, and enhances the sophistication and design of the light guide.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224397642U_ABST
Abstract
The utility model discloses a light guide piece, lighting device and vehicle for vehicle, the utility model relates to light guide technical field, and light guide piece has the light inlet surface and the light outlet surface, and the light inlet surface is used to set up with light source piece to correspond to to make light source piece emit light enter light guide piece and emit from the light outlet surface, and light guide piece still has the side wall surface connected between the light inlet surface and the light outlet surface, and the side wall surface forms the recessed groove recessed to light guide piece. Through recessed groove recessed to light guide piece at the side wall surface of light guide piece, recessed groove recessed to light guide piece can make light occur diffuse reflection or scattering at recessed groove, to make light more evenly mix and spread in light guide piece inside, thereby can greatly reduce the risk that the local overbright of light outlet surface forms bright line, and recessed groove presents 3D effect that suspends in material under the condition of not destroying the permeability of light guide piece, and the delicate feeling and design sense of light guide piece are improved on the appearance.
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