Standard series F Illuminants F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, and F12
Fs.5nm contains 12 CIE Fluorescent Illuminants, from 380 to 780 nm, at 5nm intervals.
Fs.5nm is a colorSpec object with 12 spectra.
It is organized as a data frame with quantity equal to "energy".
The series F illuminants do not seem to be normalized in a consistent way.
# plot only F4 plot( subset(Fs.5nm,"F4") )
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