lens opening

• 镜头孔径,镜头开度,透镜孔

lens opening的用法和样例：

例句

1. A very small lens aperture is employed to correct spherical aberration, but this sevrely limits the final resolution.
   可以用一个非常小的透镜孔阑来校正球差，但这会严重地影响最终鉴别率。