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geometrical optics
aperture of an optical system


numerical aperture vs angular aperture ( free )


Caution
Fill in all cells except one.
Choose all parameters unit.
n can be either a value or the reference of a glass from the catalog. If a value is entered, the wavelength will not be considered.
All parameters are positive.

ParameterValueunit
teta
n
NA
numerical aperture vs angular aperture
teta : half of the angular aperture n : refraction index of the medium NA : numerical aperture

Note
This calculation page can not detect all unrealistic inputs.



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