Description Returns the human eye's photopic response at a given wavelength.
Syntax r = Photopic ( wavelen )
Parameters r (Double) The photopic response at the given wavelength.
wavlen As Double The wavelength in microns.
Remarks This function computes the human eye's photopic response value at the given wavelength in microns. The photopic response is the relative response of the average human eye at normal illumination levels.
See Also Examples
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