Thick appearance lens using reflective surface

By coating the opposite sidewalls of the light tube with reflective material to form an infinite mirror effect, the problem of excessive mass and weight in the manufacture of thick lenses is solved, achieving a lightweight and efficient aesthetic effect, and improving thermal management and optical performance.

CN121048112APending Publication Date: 2025-12-02GM GLOBAL TECHNOLOGY OPERATIONS LLC
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Patent Information

Application Number
CN202411003669.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-05-29
Filing Date
2024-07-25
Publication Date
2025-12-02

AI Technical Summary

Technical Problem

Existing thick lens manufacturing processes result in increased lens mass, excessive weight, difficulties in thermal management, and reduced optical efficiency, making it difficult to reduce materials and manufacturing time while maintaining aesthetic quality.

Method used

Thin lenses with reflective surface design provide the appearance of thick lenses by utilizing the infinite mirror effect. By coating the opposite sidewalls of the light tube with reflective material, the light path within the air gap is extended, avoiding the defects of physically thick lenses.

Benefits of technology

It achieves a lightweight lens design while maintaining the aesthetic appeal of a thick lens, reducing material usage and manufacturing time, and improving optical efficiency and thermal management performance.

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Abstract

Aspects of the present disclosure include relatively thin lenses that utilize reflective surfaces to provide a thick lens appearance and methods of making the same. An example vehicle includes a component having a lens. The lens includes a light pipe configured such that opposing sidewalls of the light pipe face each other across the air gap, a first reflector surface having a first reflective material formed on a first sidewall of the opposing sidewalls, a second reflector surface having a second reflective material formed on a second sidewall of the opposing sidewalls, and a third surface having a third reflective material formed on a third sidewall of the opposing sidewalls. The first reflector surface has a first reflective material formed on a first side wall of the opposing side walls, the second reflector surface has a second reflective material formed on a second side wall of the opposing side walls, and the third surface is located between the first reflector surface and the second reflector surface and is configured such that light can pass through the third surface and enter the air gap. The optical path within the air gap is extended due to internal reflection between the first reflector surface and the second reflector surface, providing an infinite mirror effect.
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