Method and device for manufacturing optical thin film having concave structures on surface

Abstract

The invention discloses a method and a device for manufacturing an optical thin film having concave structures on the surface. The device comprises a mould body, edge pressing mechanisms which are arranged at two sides of the mould body and are used for tightening the edges of a thin film template, and ejector pin passages which are distributed in the mould body in an array mode, wherein ejector pins are arranged in the ejector pin passages; through a climbing mechanism, the ejector pins can move up and down on the upper surface of the mould body and inside the thimble passages; and the climbing mechanism is used for controlling the height of the ejector pins on the upper surface of the mould body. The optical thin film having the concave structures which are in one or more shapes and are highly combined on the surface can be obtained by designing the shapes and the distribution of the ejector pins, so as to improve the corresponding surface functions and natures of the thin film. According to the method, the ejector pins are adjustable in shape, height and distribution and are strong in adaptability, and the method has the advantages of easiness in operation, strong flexibility, cost conservation, good sample consistency and the like.

Description

technical field [0001] The invention relates to the preparation of an optical thin film, in particular to a method and a device for preparing an optical thin film with a concave structure on the surface. Background technique [0002] Thin film is a thin layer of solid material grown on the surface of the substrate by a specific preparation method. It has the characteristics of large surface energy level, strong adhesion and changing optical properties. It is widely used in electronic appliances, machinery, printing and other industries. The preparation methods of thin films can be divided into physical vapor deposition method, chemical vapor deposition method, sol-gel method and electrodeposition method according to broad categories. Among them, the spin-coating method in the sol-gel method is a high-quality film preparation method. The substrate with a micro-nano structure on the surface can be used as a matrix, and a micro-scale functional structure film with uniform thick...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, provide a method and device for preparing an optical film with a concave structure on the surface, and solve the problem that the optical film surface of the prior art has a single macroscopic structure and cannot meet the special use of the optical film Needs, complex preparation process and low quality

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