A kind of manufacturing method of resin optical lens
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BMF NANO MATERIAL TECHNOLOGY CO LTD
- Publication Date
- 2020-12-25
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Abstract
Description
technical field
[0001] The invention relates to the manufacture of lenses, in particular to a method for manufacturing resin optical lenses. Background technique
[0002] Resin optical lenses are generally produced by injection molding, that is, the corresponding molds are manufactured first, and then resin materials are poured into the cavity of the molds, and the lenses are obtained after the resin materials are cured. The material of the general resin optical lens manufacturing mold is metal or glass. Due to the high hardness of metal or glass, in the injection molding process, in order to consider the shrinkage and deformation of the resin and the difficulty of mold opening, it is necessary to carry out complicated processing on the male mold and the female mold. Structural design (such as the optical lens mold disclosed in Chinese patent CN201520503336.X), complex structural design will inevitably increase the manufacturing cost and the manufacturing cycle of the mold. ...