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From: u-jmolse%sunset.utah.edu@utah-gr.UUCP (John M. Olsen)
Newsgroups: sci.electronics,rec.audio,comp.graphics
Subject: Re: Perceptual Color (was: Re: Looking for Blue LEDs)
Message-ID: <2906@utah-gr.UUCP>
Date: 5 Oct 88 17:52:28 GMT
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tso@rocky2.rockefeller.edu (Daniels Tso(Wiesel)) writes:
>awpaeth@watcgl.waterloo.edu (Alan Wm Paeth) writes:
>>A BRIEF OVERVIEW OF "COLOR"
>>
>For a real "eye-opener" (teehee), try hunting down an
>example of the McCollough effect. It is similar in idea to the standard color
>afterimages, but with the surprising feature that this afterimags can last
>for days, weeks or months!

This could lead to a new crib-sheet test cheating method!  Just burn the
key into your retina, then just copy down the afterimage answers. :^)

Back to a more comp.graphics related topic, I seem to recall reading about 
a new manufacturing technique that will be used to make large color LED
screens.  Current models are about 5 inches, but the new ones can be much
larger, and could be used for way-high-res screens.  I can't remember which
tech mag I read it in, though.  Maybe EDN?  I don't recall it mentioning
whether they were analog or pulse driven.

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