“What about red-orange?”, you say.
“Red-orange light would
also
simultaneously
stimulate the Red and Green receptors.
See?”
Beauty in the eye of the beholder.3
Aaahhh…..true. But look!
The relative lengths of the arrows are different.
The green arrow, i.e. G-receptor, is much less stimulated than the R -receptor.
So, red-orange light is seen as different from yellow light due to
the
ratio
of R and G response.
