一种多光谱分光组件及装调方法

By designing a multispectral beam splitter, using a symmetrical closed-loop flexible support ring and a flexible pressure ring, combined with an unloading groove and a limiting pad, the problem of mirror deformation in ultra-low temperature environments was solved, achieving high-precision optical performance in all weather conditions.

CN120993578BActive Publication Date: 2026-07-17CHANGCHUN TONGSHI PHOTOELECTRIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGCHUN TONGSHI PHOTOELECTRIC TECH CO LTD
Filing Date
2025-10-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing mirror support structures are prone to excessive shrinkage and deformation in ultra-low temperature environments, leading to damage and deformation of the mirror surface, making it impossible to maintain high-precision surface requirements under all-weather conditions.

Method used

The multispectral beam splitter assembly is designed by combining a folding unit and a beam splitter unit. It uses a symmetrical closed wave-shaped flexible support ring and a flexible pressure ring to fix the lens with adhesive. Combined with an unloading groove and a limiting pad, it forms a flexible bending surface, which reduces the mismatch of material expansion coefficients caused by temperature changes and avoids deformation stress being applied to the lens.

Benefits of technology

Maintaining the shape stability of the lens under temperature changes prevents permanent deformation and ensures that the optical system maintains high-precision optical performance under all-weather conditions.

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Abstract

本发明提供了一种多光谱分光组件及装调方法,涉及航空光学技术领域,多光谱分光组件包括光轴转向组件、主框架、镜框、折返镜体、第一挠性支撑环、挠性压圈、转接座、第二挠性支撑环、分光镜体和挠性安装座,光谱分光采用折返镜体与分光镜体结合的形式进行分光,实现多光谱分光功能,通过第一挠性支撑环和第二挠性支撑环的设置,保证了结构支撑镜片的刚度要求,第一挠性支撑环和第二挠性支撑环均为对称的封闭式波浪形状,形成了挠性弯曲面,具备柔性特性,减弱因温度变化而造成材料膨胀系数不匹配,避免形变应力施加在镜片上造成变形,解决了现有反射镜支撑结构在超低温环境中收缩变形导致镜体面型造成损坏变形的技术问题。
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