A refractive defect of a lens or other opticalsystem that prevents light rays from converging at a single point resulting in a blurred or imperfect image.
散光有折射缺陷的透镜或其它光学系统,阻碍光线汇聚于一个焦点,形成一个模糊或不完全的图象。
2
A set of special compound shaping prisms has been designed for a semiconductor laser system on the basis of the luminous property of semiconductor laser and the opticalrefractive property of prism.