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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