This would be similar to illuminating a white surface with that specific wavelength to which only one type of cone is sensitive to. This is kind of why looking at laser light feels weird - our eyes get confused by some cells firing and their neighbors, who'd fire as well, remaining quiet. The perceived color can be an artifact of the brain dealing with it.
armchairhacker · 5h ago
I read it as, they’re sending light to cone cells of a specific type while blocking the others. That particular type, any wavelength that triggers it also triggers other cells (albeit at lower intensities).
I doubt they’d need such a special device to emit light of a particular wavelength, I think we can create quantum dots that do that?
rbanffy · 4h ago
I think so. From the article it’s unclear. You also need to pick a wavelength that excites only one type of cone.
I doubt they’d need such a special device to emit light of a particular wavelength, I think we can create quantum dots that do that?