focal length measurement of optical part and optical system
释义
focal length measurement of optical part and optical system Encyclopedia
工学光学元件及光学系统特性参数计量释 focal length measurement of optical part and optical system光学零件及光学系统焦距测量 对平行于光学系统光轴的平行光束经光学系统后的汇聚点（焦点）到光学系统的像方主点距离的测量。焦距是确定光学系统物像关系的重要参量。