Deformation processing method for optical aspheric element

Abstract

The invention claims a deformation processing method for an optical aspheric element, relates to the optical manufacture field and solves the problems of the existing optical aspheric element processing method that the processing time is long and the cost is low. Specially-made vacuum fixture is designed for the optical aspheric element to be processed, the vacuum card mounting mode is adopted, the surface of the optical aspheric element has certain deformation under the vacuum card mounting state, the processing method for the optical aspheric element is adopted for processing, the concrete mode is the grinding and forming mode, accurate grinding mode and polishing mode; the vacuum fixture is taken off after processing, and the surface shape error of the optical aspheric element meets the technology design requirement under the non card mounting state. The processing of the surface of the optical aspheric element can be realized through deformation card mounting operation; the aspheric optical element processing mode is used for correcting partial diaphragm, the processing efficiency of the surface of the optical aspheric element is effectively improved, the processing time is greatly shortened, the processing cost is reduced and the processing precision is improved.

Description

technical field [0001] The invention relates to the technical field of optical processing, in particular to a deformation processing method of an optical aspheric element. Background technique [0002] The surface curvature radius of the optical aspheric element will change with the distance from the central axis, so the chief ray and the paraxial ray can be corrected differently to obtain higher imaging quality and reduce the number of necessary components in the optical system , to reduce the design cost of the optical system, so optical aspheric components are widely used in medical, military, aerospace and other fields. [0003] With the development of science and technology, optical aspheric components have also been more and more widely used. However, since the surface curvature radii of optical aspheric elements are not consistent, the existing optical aspheric elements are manufactured by partial processing, single-point grinding is used for milling when forming, an...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of long processing time and high cost in existing optical aspheric element processing methods, the present invention provides a deformation processing method for optical aspheric elements, which can quickly manufacture high-precision optical aspheric elements

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