柱面透镜 meaning in English

cylinder lens
cylindrical lens

If the objective lens is closer to the compact disk than the focal length of the object lens , then the cylindrical lens creates an elliptical image on the photodetector array
如果物镜与光盘之间的距离短于物镜的焦距，柱面透镜就会使在光电探测器阵列上的成像变成椭圆影像。
If the objective lens is further away from the compact disk than the focal length of the object lens , then the cylindrical lens again creates an elliptical image on the photodetector array
如果物镜与光盘之间的距离长于物镜的焦距，柱面透镜也会使在光电探测器阵列上的成像变成椭圆影像。
In this thesis , the basic operation in the optical computation was studied by analyzing the course of laser beams transmitting through a vmm , which is composed of an array of vertical cavity surface - emitting lasers , spherical and cylindrical lens , an array of multiple quantum well spatial light modulators and an array of the detectors
本文研究的光学矢量-矩阵乘法器主要是由垂直腔面发射激光器( vcsel )阵列、球面透镜和柱面透镜组、多量子阱空间光调制器( mqwslm )及ccd阵列构成。作为小尺寸的集成光学器件,必须要考虑衍射的作用。