Light guide and vehicle lamp module

By using a light guide structure and a reflective layer to reflect low beam light, the baffle and drive mechanism are eliminated, solving the problems of large space occupation and high energy consumption of baffles in existing vehicle lights. This achieves miniaturization and improved safety of the vehicle light module, while also supporting multi-functional light integration.

CN119572978BActive Publication Date: 2026-06-23FSL AUTOTECH
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FSL AUTOTECH
Filing Date
2025-01-09
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing automotive headlights, the baffle and its drive mechanism occupy a large space, affecting the size of the headlight module and energy consumption. Furthermore, the baffle generates noise when it moves, affecting the driving experience and visibility safety.

Method used

It adopts a light guide structure, forming a light-dark cutoff line through the light guide and reflective layer, eliminating the need for baffles and drive mechanisms. It uses the light guide and reflective layer to reflect near light to form a clear light-dark cutoff line, and combines it with the lens to achieve light focusing and total internal reflection.

Benefits of technology

It reduces the size and energy consumption of the headlight module, improves the driving experience and visibility, ensures driving safety, and supports the integration of fog lights and laser lights to meet a variety of usage needs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119572978B_ABST
    Figure CN119572978B_ABST
Patent Text Reader

Abstract

The application discloses a light guide and a vehicle lamp module, which comprises a light guide body, the light guide body is in a flat structure, the rear end of the light guide body is provided with one or more light guide parts, the light guide parts are used for guiding high beam light into the light guide body, the front end of the light guide body is provided with a notch, the notch is used for avoiding part of low beam light, the edge of the notch forms a light exit surface of the light guide body, the light exit surface is used for high beam light, the upper surface of the light guide body is provided with a light reflection layer, the light reflection layer comprises a reflection plane, the reflection plane is used for reflecting part of low beam light, so that the low beam light forms a clear cut-off line. The light guide and the vehicle lamp module provided by the application can form a clear cut-off line without using a baffle, can reduce the use of a baffle and a driving mechanism and other accessories, effectively reduces the volume of the vehicle lamp module, and reduces the energy consumption for switching between low beam and high beam.
Need to check novelty before this filing date? Find Prior Art