High-efficiency polishing method for easily deformable lens

Abstract

The invention discloses a high-efficiency polishing method for an easily deformable lens. The high-efficiency polishing method for the easily deformable lens comprises the following steps that step one, a numerically-controlled spherical surface milling machine is applied to complete milling of a part to be machined; step two, auxiliary glass is machined; step three, the auxiliary glass and the part to be machined are bonded; step four, the bonded part to be machined is polished by using a numerically-controlled high-efficiency polishing device; step five, after polishing is finished, the auxiliary glass is removed, the part is cleaned and sent for test; and step six, transferring to a next process is carried out. The difference between the center thickness and the edge thickness of the composite part is reduced by bonding the auxiliary glass on the deformable lens, the characteristic that the surface shape of the lens is easily changed during high-efficiency polishing is greatly reduced, the easily deformable lens is transformed into a lens which is not easily deformed, the machining difficulty is reduced finally, and finally the part can be machined quickly according to design indexes on a high-efficiency polishing device.

Description

technical field [0001] The invention belongs to the field of optical processing, in particular to a high-efficiency polishing method for deformable lenses. Background technique [0002] The polishing process of lens can be divided into classical polishing and high-efficiency polishing. High-efficiency polishing is generally used for large-volume, low-to-medium precision lens polishing. The shape of the lens involved in processing in the present invention is relatively special, which is characterized by a large difference between the thickness of the center of the lens and the thickness of the edge, and the opening angle of the concave surface is relatively large, close to a hemisphere. When the high-efficiency polishing method is used for processing, due to the high-speed and high-pressure operation of the equipment, the polished surface of the part is easily deformed, and △N can reach 2 to 3, and the surface shape of the part cannot converge smoothly to the required index....

AI Technical Summary

Problems solved by technology

However, when classical polishing is applied, the polishing efficiency of parts is low due to the limitation of the spindle speed of classical polishing equipment, which is a major bottleneck problem restricting mass production.

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