Coating method for ultraviolet light cut-off optical film layer

Abstract

The invention discloses a coating method for an ultraviolet light cut-off optical film layer, and relates to the technical field of vacuum coating. The problems that brightness of a lens is not enough and observation is not clear in the using process due to the fact that visible light transmittance of an existing optical lens subjected to the vacuum coating is obviously reduced are solved. The coating method for the ultraviolet light cut-off optical film layer comprises the following steps that step A, a base material and a coating material are selected according to purposes and types of optical lenses, the base material is panda tempered glass, the coating material is a mixture of silicon dioxide and titanium dioxide, and the weight ratio of the silicon dioxide to the titanium dioxide is 1.5: 1; and step B, the base material is processed, shaping cutting on the base material is performed according to the purpose of the lens, coarse grinding is performed on a cutting surface, and fine grinding is performed on a coating surface, so as to ensure that the coating material is more uniform in the coating process. By coating the surface of the base material, transmittance of ultraviolet rays and visible light can be effectively ensured, and application range is wider.

Description

technical field [0001] The invention relates to the technical field of vacuum coating, in particular to a method for coating an ultraviolet light cut-off optical film layer. Background technique [0002] With the rapid development of social economy and the continuous improvement of people's living standards, people pay more and more attention to health, and then pay more and more attention to the damage caused by ultraviolet light to human eyes and skin parts in daily life; glasses used in daily life , masks, display panels and some specific optical lenses all need to have the characteristics of intercepting ultraviolet rays. By coating the surface of optical lenses, ultraviolet rays can be blocked. [0003] However, the visible light transmittance of the existing optical lens itself is significantly reduced after vacuum coating, resulting in insufficient brightness of the lens during use and unclear observation; therefore, it does not meet the existing needs, and we propose...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a method for coating an ultraviolet light cut-off optical film to solve the problem that the visible light transmittance of the optical lens itself is significantly reduced after the vacuum coating of the optical lens proposed in the above background technology, resulting in the brightness of the lens during use. Not enough, and the observation is not clear, etc.

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