This paper introduces the aspherics used in the optical pick-up of video-disc player.The evaluation of the objective quality used in optical pick-up, as well as the material is given.

• 阐述了非球面镜发展的意义及其在光盘机光学读取头中的应用,并介绍了光学读取头物镜性能的评价和制作材料。