文件名称：Using Precision Molded Aspheres
文件大小：364KB
文件格式：PDF
更新时间：2013-04-30 15:38:21
Asphere
The power of using aspheric lenses has been known for several centuries, starting with the formulas invented by Renee Descartes in the early 1600s. Although it was known that aspheric lenses had major advantages over their spherical counterparts, the cost and complexity of manufacturing them has limited their use in commercial and scientific applications.