A composite multi-curved surface high-efficiency high beam cup with no light leakage

By designing a multi-curved reflector cup and a three-dimensional light-shielding system, the problems of light leakage and low luminous efficiency in the small high beam cup of automobiles are solved, achieving efficient high beam control and adaptive adjustment to meet the lighting needs of different vehicle models.

CN224284301UActive Publication Date: 2026-05-26DONGGUAN LIANLONG OPTOELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LIANLONG OPTOELECTRONIC TECH CO LTD
Filing Date
2025-08-01
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing automotive high beam reflectors suffer from severe optical crosstalk, low luminous efficiency, and poor component compatibility, making them unsuitable for the lighting needs of different vehicle models. Furthermore, the angle between the shading component and the reflector is not properly matched, resulting in insufficient suppression of stray light.

Method used

It adopts a multi-curved reflector cup design, with the inner wall divided into center, transition and edge reflector zones. The radius of curvature and tangent angle change in a gradient. Together with the side light shield and the low beam isolation cover, it forms a stray light blocking barrier. The lamp bead bracket is set coaxially with the reflector cup. The nano reflective coating has a gradually varying thickness. The angle adjustment seat realizes dynamic adjustment of the optical axis.

Benefits of technology

It reduces light crosstalk intensity by 92%, increases light efficiency to 88%, ensures no optical path deviation, adapts to the lighting needs of different vehicle models, and complies with GB25991-2010 standards.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of lighting optical equipment technology, specifically a composite multi-curved surface high-efficiency high-beam cup with no light crosstalk. It includes a high-beam light-transmitting cover, an outer frame, a positioning block, a multi-curved reflector cup, a lamp bead bracket, a side light shield, a low-beam isolation cover, and an angle adjustment seat. The multi-curved reflector cup's curvature and tangent angle gradient design, combined with the side light shield and low-beam isolation cover, strictly confines the high-beam light to the high-beam area, reducing crosstalk intensity by more than 92%. The lamp bead center coincides with the reflector cup's focal point, and the nano-reflective coating increases the light efficiency to 88%, a 40% improvement over traditional designs. The continuous transition of the multi-curved surface ensures no light scattering loss. The coaxial positioning of the positioning block, outer frame, and reflector cup ensures zero optical path offset. The angle adjustment seat allows for ±5 optical axis adjustment, adapting to different vehicle models. The three-dimensional light-shielding system, with the light-transmitting cover engaging, the light shield tilting, and the isolation cover surrounding, completely blocks stray light.
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