多少个世纪以来,光学零件都是用玻璃制造的。但是,情况正在发生变化。随着光学塑料和精密加工技术的发展,用光学塑料制造的光学零件(参见本刊本期图片介绍)开始得到应用。塑料光学零件可以采用压铸成型和铸型成型等方法制造。压铸成型工艺用于生产大型零件(直径约在100毫米以上);铸型成型工艺用注模的方法制造热固塑料零件,便于大量生产。 Optical components have been made of glass for centuries. However, the situation is changing. With the development of optical plastics and precision machining technology, the optical parts made of optical plastic (see the picture in this issue of periodical) have been used. Plastic optical components can be used die-casting molding and molding methods such as manufacturing. Die-casting molding process for the production of large parts (diameter of about 100 mm or more); molding process injection molding method of making thermoset plastic parts, easy mass production.