because of the variety of aspheres and different requirements of dimension and precision, the testing of asphere is more difficult and complex than that of sphere 非球面的种类繁多,尺寸、精度要求各异,其检测方法远比球面复杂和困难。
with the development of technology, people have known special function of aspheric surface in kinds of optical instruments little by little . so optical aspheres are more and more adopted in design and producing of optical instruments recently 随着科学技术的飞速发展,人们越来越清楚认识到非球面在各种光学仪器中的特殊作用,因此近年来在光学仪器的设计和制造中,越来越多地采用光学非球面。
with the development of technology, people have known special function of aspheric surface in kind of optical instruments little by little . so optical aspheres are more and more adopted in designing and producing of optical instruments recently 随着科学技术的飞速发展,人们越来越清楚认识到非球面在各种光学仪器中的特殊作用,因此近年来在光学仪器的设计和制造中,越来越多的采用光学非球面。