视场光栏 meaning in English
field stop
Examples
- The restrictive function was obtained , based on the analysis of restrictive phenomenon in angle measurement , the method of deriving restrictive function is proposed
摘要在分析?生渐晕现象的基础上，提出了渐晕函数的推导方法，得到了视场光栏?线状时的渐晕函数。