Manufacturing technology of specially-use mould core of optical lens mould

Abstract

A manufacturing technology of a specially-use mould core of an optical lens mould comprises following steps: (A) plating a titanium-silicon thin film layer on a mould core body in a magnetron sputtering plating manner, wherein the magnetron sputtering plating manner includes following substeps: (A1) employing a magnetron sputtering plating machine with a titanium target being used and a SiO2 thin sheet being a substrate, (A2) cleaning the substrate before plating with acetone and then cleaning the substrate with ultrasonic wave and finally washing the substrate with deionized water and air-drying the substrate, and (A3) bombarding the titanium target with argon ions for performing pre-sputtering for 5 min before deposition of the thin film, and performing the deposition of the thin film by removing a substrate baffle after the sputtering being stable; (B) coating the titanium-silicon thin film layer with a titanium-silicon-nitrogen thin film layer in a unbalanced magnetron sputtering manner; (C) coating the titanium-silicon-nitrogen thin film layer with a titanium-aluminum-silicon-nitrogen thin film layer in the unbalanced magnetron sputtering manner; and (D) coating the titanium-aluminum-silicon-nitrogen thin film layer with a nickel-aluminum thin film layer in the unbalanced magnetron sputtering manner.

Description

technical field [0001] The invention relates to the field of moulds, more specifically, to a special mold core preparation process for optical lens molds. Background technique [0002] In recent years, digital cameras, digital video cameras and other optical products and mobile phones with camera functions have developed rapidly. In order to meet the needs of high imaging quality, lightness, lightness, shortness, and portability, ordinary plastic optical lenses cannot achieve the required imaging quality. Using glass lenses, however, for aspheric small-sized glass lenses, if they are manufactured by polishing and grinding, it is not only difficult but also takes a long time. Therefore, the current trend is to produce by mold manufacturing (hereinafter referred to as molding) Aspherical, small size glass lens. [0003] The mold core for molding glass plays a decisive role in the quality of the molded glass lens, and also has an important relationship with the number of glass...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a special mold core preparation process for optical lens molds, the main purpose of which is to overcome the defects of low hardness, short life and high material cost in the prior art.