POV-Ray : Newsgroups : povray.binaries.images : Calibrated spectral colors : Re: Calibrated spectral colors Server Time
28 Nov 2023 15:29:50 EST (-0500)
  Re: Calibrated spectral colors  
From: Alain Martel
Date: 7 Aug 2023 10:25:56
Message: <64d0fef4$1@news.povray.org>
Le 2023-08-06 à 16:34, Cousin Ricky a écrit :

> The second issue is that some RGB combinations create pigments that
> reflect/transmit more light than than they receive at some wavelengths.
> This can be seen in the attached illustration.
That part can be explained by florescence. Some of the absorbed light of 
shorter wave length get re-emitted as longer wave length.
One blue photon is absorbed and re-emitted as 2 red photons or a red and 
an infra red photon.
Notice that the excess tend to be in the dark red region of the 
spectrum, almost infra red.

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