Optical microstructure, light guide glass, glass assembly, and vehicle

CN122307814APending Publication Date: 2026-06-30FUYAO GLASS IND GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUYAO GLASS IND GROUP CO LTD
Filing Date
2026-04-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing automotive ambient lighting light guide technologies suffer from problems such as high material costs, complex production processes, limited LED model options, uneven light efficiency, and large structural thickness.

Method used

It employs an optical microstructure, including a substrate layer, a microstructure layer, and a reflective layer, and achieves effective propagation of light in the optical waveguide through a total reflection angle design, reducing the bonding steps of the light guide structure and allowing the use of forward-emitting LEDs.

Benefits of technology

It improves the uniformity of light mixing, reduces the complexity of materials and processes, reduces product thickness, simplifies the production process, and enhances the uniformity and aesthetics of in-vehicle ambient lighting.

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Abstract

This invention discloses an optical microstructure, a light guide glass, a glass assembly, and a vehicle. The optical microstructure includes at least a substrate layer, a microstructure layer, and a reflective layer stacked sequentially. The microstructure layer has multiple microstructures arranged side-by-side, with recessed areas formed between adjacent microstructures. The reflective layer is disposed on the surface of each microstructure away from the substrate layer. Incident light rays from the front of the optical microstructure are reflected at an angle by the reflective layer to meet the total internal reflection angle requirement of the reflected light rays in the optical waveguide. The optical microstructure, light guide structure, glass assembly, and vehicle of this invention address the problems of simplifying ambient light guide structures, improving production efficiency, and reducing product thickness and manufacturing complexity.
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