Re: pinhole light, color, and lasers

Paul Doherty (pauld@exploratorium.edu)
Wed, 26 May 1999 14:07:05 -0800


Message-Id: <l03110704b37220b0d6c8@[192.174.2.173]>
In-Reply-To: <199905252123.OAA15308@noontide.lick.pvt.k12.ca.us>
Date: Wed, 26 May 1999 14:07:05 -0800
To: "Pinhole Listserv" <pinhole@exploratorium.edu>
From: Paul Doherty <pauld@exploratorium.edu>
Subject: Re: pinhole light, color, and lasers

Hi Sarah

Color IS a human perception.
So colors of light add together at the retina and in the brain to produce
our human perception of color.

Red and green lights falling on the same region of the retina produce the
same firing of nerves as yellow light does, and so we "see" yellow.

Paul D

Paul "But it is more complicated than that!" Doherty,
Senior Staff Scientist, The Exploratorium.
pauld@exploratorium.edu, www.exo.net/~pauld