Absolutely. There is no single wavelength of light being produced that would look yellow on its own, but yellow is the word we have for when our long and medium cones both get activated, and a display does produce light that does that. Yellow exists in our brains, so I think it’s pretty reasonable to say that either yellow exists somewhere in this process or no colors do.
Well, there is a wavelength that by itself activates both of these cones such that we interpret it as yellow. But a combination of wavelengths also does that
Absolutely. There is no single wavelength of light being produced that would look yellow on its own, but yellow is the word we have for when our long and medium cones both get activated, and a display does produce light that does that. Yellow exists in our brains, so I think it’s pretty reasonable to say that either yellow exists somewhere in this process or no colors do.
Well, there is a wavelength that by itself activates both of these cones such that we interpret it as yellow. But a combination of wavelengths also does that