Coating jig for optical lenses

Abstract

The invention discloses a coating jig for optical lenses. The coating jig comprises first base materials and second base materials matched with the first base materials, wherein first through holes are formed in the first base materials; second through holes are formed in the second base materials; the coating jig also comprises elastic rubber rings, a circle of closed groove is formed in the inner wall of each of the elastic rubber rings; the radial cross section of each of the closed grooves is semicircular; the cross section of each of the closed grooves is elliptic; a part of the inner wall of each of the first through holes is sunken inwards so as to form a first gap; a part of the inner wall of each of the second through holes is sunken inwards so as to form a second gap; the cross sections of the first gap and the second gap are elliptic, and the radial cross sections are circular. According to the coating jig disclosed by the invention, the outer walls of the elastic rubber rings can be fixed between the first gaps and the second gaps, and the closed grooves of the elastic rubber rings can be deformed, so that optical lenses are clamped; the elastic rubber rings have elasticity, so that clamping force can be uniformly distributed to the edges of the optical lenses, the optical lenses can be prevented from being clamped and damaged, and the qualified rate of the optical lenses is increased.

Description

technical field [0001] The invention relates to a coating jig for optical lenses. Background technique [0002] With the development of science and technology, there are more and more applications of optical lenses, and different fields have different performance requirements for optical lenses. Optical lenses usually need to be coated on their surface, and the incident light, reflected light and transmitted light are used in the cross section of the film. Interference phenomena are used to achieve functions such as focusing, filtering and reflection. When coating an optical lens, it is usually necessary to use a jig to fix the optical lens, and then place the jig with the fixed optical lens in a vacuum environment for evaporation, so that a film layer is formed on the surface of the optical lens. However, the existing fixtures are easy to pinch the edge of the optical lens when clamping the optical lens, leaving clamping marks on the edge of the optical lens, affecting the...

AI Technical Summary

Problems solved by technology

However, the existing fixtures are easy to pinch the edge of the optical lens when clamping the optical lens, leaving clamping marks on the edge of the optical lens, affecting the quality of the optical lens, and reducing the pass rate of the optical lens. Therefore, it is necessary to provide A new coating fixture to solve the above problems

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