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From: gfs@drutx.UUCP (SkinnerGF)
Newsgroups: net.analog
Subject: does the eye see light linearly?
Message-ID: <142@drutx.UUCP>
Date: Fri, 4-Oct-85 10:37:01 EDT
Article-I.D.: drutx.142
Posted: Fri Oct  4 10:37:01 1985
Date-Received: Sat, 5-Oct-85 06:46:14 EDT
Organization: AT&T Information Systems Laboratories, Denver
Lines: 9

I am working on a project controlling light.
I was wondering if the eye perceives light in a linear way?
i.e. if you double the lumens put out by a bulb, do you see twice
as much light.  The ear of course hears in a logrithmic way, I'm
wondering if the eye does similar things?
The relationship to lumens put out by a bulb to voltage across
the bulb is approximately   lum = volts**3.6 (3.6 is typical).

Any information is appreciated...  Gary Skinner AT&T


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