Optical element polishing method

By using a contour positioning fixture and a collimator to detect and adjust the parallelism of optical components during grinding, the problem of controlling thickness and parallelism in optical component grinding is solved, achieving high-precision optical component grinding results.

CN122401221APending Publication Date: 2026-07-17MATRIXED REALITY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MATRIXED REALITY TECH CO LTD
Filing Date
2026-06-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to achieve the required thickness and parallelism in the grinding of optical components, which leads to a decrease in image quality.

Method used

The optical element to be ground is pre-positioned in the positioning fixture. The parallelism between the surface to be processed and the grinding reference surface of the optical element is detected in real time using the contour positioning fixture and collimator. The orientation of the optical element is adjusted to meet the preset range and fixed in a detachable manner. Grinding is performed using the grinding reference surface of the contour positioning fixture as a reference.

Benefits of technology

High-precision grinding of optical components has been achieved, eliminating grinding defects caused by posture deviation, improving imaging quality, and increasing grinding accuracy by more than 60%.

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Abstract

本公开提供了一种光学元件研磨方法,该方法中:预定位待研磨光学元件于定位治具,待研磨光学元件具有相对的待加工面和支撑面,定位治具具有相对的贴合表面和研磨基准面,支撑面与贴合表面贴合;基于定位治具的研磨基准面,确定待研磨光学元件的待加工面与研磨基准面的平行状态参数;在平行状态参数不符合预设范围时,调整待研磨光学元件与定位治具的贴合状态,直至平行状态参数符合预设范围;在平行状态参数符合预设范围时,通过可拆卸方式,将待研磨光学元件固定于定位治具贴合表面;将固定有待研磨光学元件的定位治具安装至研磨设备上,以研磨基准面为基准,对光学元件的待加工面进行研磨。
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