A stress-free assembly method for optical components

Abstract

A stress-free assembly method for large-diameter optical elements, comprising placing optical elements with assembly in an assembly frame; placing several polytetrafluoroethylene rods evenly between the assembly frame and the optical elements, and the inner diameter of the assembly frame is equal to the The sum of the diameter of the assembled optical element and the diameter of the polytetrafluoroethylene rod; pour molten filler into the gap between the assembly frame and the optical element until it is full; after the filler cools and solidifies, extract the polytetrafluoroethylene rod , the assembly is complete. The present invention is used for stress-free clamping and assembling of large-diameter optical elements. Compared with the traditional "sling type" and direct frame type two conventional clamping methods, it not only solves the stress concentration phenomenon of contact clamping caused by the self-weight of optical components, It also solves the problem of the stability of the mirror clamping.

Description

technical field [0001] The invention relates to an assembly method of optical elements, and is especially suitable for the field of assembly and adjustment of optical elements with large aperture, low deformation and high stability, and can realize very stable stress-free assembly and adjustment of optical elements. Background technique [0002] The stress-free assembly of optical components has always been a difficult problem in the field of optics, especially in the field of high-precision large-diameter optical components and large mirror optical detection. Meet the indicators, and poor stability. . Conventional optical component assembly is generally that skilled workers use special tools to embed optical components in the optical assembly frame based on experience, and point supports or slings and other fixtures to relieve contact stress and deformation. Under this assembly method, the distance between the optical component and the frame is Hard contact, when the opti...

AI Technical Summary

Problems solved by technology

[0002] The stress-free assembly of optical components has always been a difficult problem in the field of optics, especially in the field of high-precision large-diameter optical components and large mirror optical detection. Satisfy the indicators, and the stability is poor

Conventional optical component assembly is generally that skilled workers use special tools to embed optical components in the optical assembly frame based on experience, and point supports or slings and other fixtures to relieve contact stress and deformation. Under this assembly method, the distance between the optical component and the frame is Hard contact, when the optical element itself has a large caliber or is relatively heavy, stress concentration will occur at the contact part, resulting in serious surface distortion of the optical element

Therefore, there is an urgent need for a stress-free optical component assembly method. At present, many studies have made many designs and attempts on the optical component assembly method, but the results are not satisfactory.

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