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From: BILLW%SRI-KL@sri-unix.UUCP
Newsgroups: net.physics
Subject: Re: colors
Message-ID: <12697@sri-arpa.UUCP>
Date: Wed, 22-Aug-84 08:15:00 EDT
Article-I.D.: sri-arpa.12697
Posted: Wed Aug 22 08:15:00 1984
Date-Received: Sat, 25-Aug-84 06:13:07 EDT
Lines: 9

this is true only to a certain extent.  You can "correct" for
the color tempeture of the light source, as long as it contains
at least some of a variety of frequencies.  If you start dealing
with nearly monochromatic light sources, this is not possible.
For example, we have some orange exhaust stacks here that appear
quite grey under the ilumination of sodium arc lamps (also orange,
but not quite the same frequency).

BillW