I was watching this video which talks about why violet and idigo in the rainbow can be shown on a computer screen even though the computer screen can not produce light with higher wavelength than blue.
It got me wondering though, brighter and brighter blues are shown on a computer screen as more and more white, which makes sense from a camera perspective in that the colour filters which are used over the ccd to permit coloured pixels wouldn't be perfect and so more of the other colours would filter through making the image white.
When it comes to the human eye though there isn't a filter but a different molecule (Same molecule held by different protein) and so if a particular wavelength is required to activate the molecule, surly much like the gold leaf experiment, the eye can't see more blue when a super bright red is incident on the eye. Can a super bright red look white then?
What would a very intense low frequency (red) light look like?
I was originally going to ask about blue, but the gold leaf experiment analogy doesn't work that way around.