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Numerical Aperture
Numerical Aperture
光学系统的
数值孔径
定义为
NA
=
n
sin
θ
其中
n
为光学系统工作介质的折射率,
θ
则是光进出透镜时最大锥角的一半
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Backlinks
Fraunhofer Diffraction
Introduction to Geometrical Optics
Optics Final Review
Optics