Path: utzoo!utgpu!watmath!att!mcdchg!ddsw1!corpane!sparks
From: sparks@corpane.UUCP (John Sparks)
Newsgroups: comp.graphics
Subject: Re: Color desktop scanners (a technical
Summary: Dye Lasers
Message-ID: <955@corpane.UUCP>
Date: 14 Aug 89 15:19:34 GMT
References: <1869@ucsd.EDU> <46900035@uxe.cso.uiuc.edu>
Reply-To: sparks@corpane.UUCP (John Sparks)
Organization: Corpane Industries, Inc.
Lines: 22

In article <46900035@uxe.cso.uiuc.edu> mcdonald@uxe.cso.uiuc.edu writes:
>
>"White" krypton lasers are not really white. They contain several
>lines that add together to appear whice to the eye. They do 
>make good color scanner sources, as the lines are in nice places.
>

I am not an expert on lasers, but I came across some info that might be of
interest. On the Discovery Channel there was a piece on medical lasers.

Some surgeons needed different frequencies of lasers for different tasks, so
they were using a Dye laser. From what I could gather, a primary laser excited
a dye which emmitted a secondary laser which could be tuned to almost any 
frequency. 

Using such a laser maybe you could tune it to Red, Green, or Blue for color
scanning.

-- 
John Sparks   |  {rutgers|uunet}!ukma!corpane!sparks | D.I.S.K. 24hrs 1200bps
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