物镜焦距 meaning in English
focal distance of objective
objective focal length
Examples
- Of course , if the disk is right at the focal length of the objective lens , then the cylindrical lens does not affect the image and it is perfectly circular
当然，如果正好处于物镜焦距位置，柱面镜就不会影响到光电探测器上的成像，因而会获得一个完美的圆性影像。