Polishing method for improving surface figure accuracy yield of glass lens surface, glass lens surface, camera and electronic equipment

Abstract

The invention discloses a polishing method for improving the surface figure accuracy yield of a glass lens surface, the glass lens surface, a camera and electronic equipment, and relates to the technical field of glass polishing. The polishing method comprises the following steps that double-sided grinding and polishing is carried out on the glass lens surface after subjected to appearance machining through a profiling process by adopting polishing leather matching with a nano silicon dioxide polishing solution to obtain a polished glass lens surface, wherein the roughness of the polishing leather is 10 micrometer or less, the Shore hardness is 60 - 80 degrees, and the particle size of silica sol in the nano silica dioxide polishing solution is 60 - 100 nm. According to the polishing method for improving the surface figure accuracy yield of the glass lens surface, the roughness and hardness of the polishing leather are controlled and the nano silicon dioxide polishing solution with thespecific particle sized silica sol is selected, the polishing leather and the polishing solution are matched with each other, so that the surface figure accuracy of the polished glass lens surface isgood, the PV value and the RMS value are smaller than or equal to 0.25 Lambada and are very stable, the yield reaches 100%, and the problem that the client detection requirements are not met due to the fact that the surface figure accuracy of the lens surface after polishing by adopting a traditional common polishing material is not qualified is solved.

Description

technical field [0001] The invention relates to the technical field of glass polishing, in particular to a polishing method for improving the yield rate of the surface shape accuracy of a glass mirror, a glass mirror, a camera and electronic equipment. Background technique [0002] The processing and production process of 2D and 2.5D camera glass mirrors requires a polishing process. When polishing, put several optical glasses on a fixed carrier plate and polish them together with a grinding and polishing machine. The common polishing method is to use red microdermabrasion and cerium oxide polishing fluid as polishing materials. [0003] Surface shape accuracy is an important indicator for evaluating surface shape quality. It is the data characterized by the deviation between the precision polished surface and the ideal plane. The surface shape accuracy of the obtained glass mirror can no longer meet the requirements. For example, the current customer's inspection requires...

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