field diaphragm

• 视场光阑

field diaphragm的用法和样例：

例句

1. The physical stop which corresponds to the entrance window is then the required field stop.
   入射窗所对应的实物光阑就是所要求的场光阑。
2. Far field spatial intensity structures are result from the diffraction of sharing gratings.
   远场光强的空间结构是由共享光栅组合衍射引起的。