An aspherical surface shape detection device and method based on the closest circle theory

Abstract

The invention discloses an aspheric surface shape detection device and method based on the closest circle theory. The detection device includes an "L"-shaped bed, and the outer side of the vertical part of the bed is connected to a torque motor through a flange. The rotating shaft passes through the vertical part of the bed and is connected with the rotary bracket that is close to the lower half of the inner side of the vertical part. The top of the rotary bracket is provided with a rotating handwheel, and the slide rail on the side of the rotary bracket is connected with a horizontal "T". "Shaped Z-direction motion bracket, the top plane slide rail of the Z-direction motion bracket is connected to the Y-direction motion platform, the top plane slide rail of the Y-direction motion platform is connected to the X-direction motion platform, and the upper surface of the X-direction motion platform is fixed A workpiece fixing platform is provided, and the upper surface of the workpiece fixing platform is provided with a platform for placing components to be measured. The problem of difficult detection of aspheric optical parts in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of optical manufacturing and detection, and relates to an aspheric surface shape detection device and method based on the closest circle theory. Background technique [0002] In optical systems, aspheric elements have incomparable advantages over spherical elements. The use of aspheric elements can not only correct the aberration of the optical system and reduce the loss of light energy, but also obtain high-quality image effects and high-quality optical characteristics. Simplify system structure, reduce system weight and other advantages. Therefore, the processing of aspheric surfaces has attracted more and more attention. At present, experts and scholars at home and abroad have carried out in-depth research on the processing of aspheric surfaces, and have proposed a variety of methods, from the traditional manual processing method to the trajectory forming mechanical processing method proposed in the 20t...

AI Technical Summary

Problems solved by technology

[0005] In order to achieve the above purpose, the present invention provides an aspheric surface shape detection device and method based on the closest circle theory, which solves the problem of difficult detection of aspheric optical parts in the prior art

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