Re: Color perception, was Re: human tetrachromate mutant reported

From: hal@finney.org
Date: Fri Dec 01 2000 - 12:05:21 MST


Michael M. Butler, <butler@comp-lib.org>, writes:
> I also sometimes notice additional information from wearing polarized
> sunglasses. A leaf on the ground will appear to have a peculiar
> glistening sheen. I should research this some more.

This is probably caused by the two polarizing lenses being slightly
misaligned. Glancing reflected light tends to be polarized, and so
if the two eyes have polarizers with different orientations then the
relative brightness between the leaf and the ground will be different
with your two eyes. Your brain is apparently presenting this oddity as
a peculiar sheen.

Another interesting experiment would be to go around for a few days
with those red-blue 3D glasses on. I know, it sounds like a headache,
but probably after a while you'd get used to it and perceive some degree
of normal color vision. You'd have less color perception rather than
more, but I suspect that you would feel that you were seeing somewhat
normal colors. Just a guess though -

Hal



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