lasers/collimated light i

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Article #15718

#15718

From: glen mead
Date: Thu, 31 Dec 1992 18:51

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nagle@netcom.com (John Nagle) writes:

JN>      I suspect you are seeing a xenon lamp fronted by a color wheel and
JN>mirror galvonometers, all computer controlled.  These are now a common
JN>disco lighting gadget.  The beam is collimated well enough that it looks
JN>like a laser beam, but it isn't.  Look for leakage of white light from
JN>the unit.

Hmmm, I'd never heard of this before.  I can't get close enough to the
unit to check it out but I haven't seen any hint of white light.  It's
quite an impressive system...they project animations and phrases as well
as all kinds of graphics and lissajous figures with the unit.  Is this all
possible with a Xenon lamp?  Do you have any more info on this subject?

Glen Mead - RZ/RD 500 Owners Group
---
 * Amiga-Reader V2.00B * 
--
Canada Remote Systems  - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044

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Message-ID: <1992Dec31.4265.27373@dosgate>

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Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!uunet.ca!canrem!dosgate!dosgate![glen.mead@canrem.com]
From: "glen mead" <glen.mead@canrem.com>
Subject: lasers/collimated light i
Message-ID: <1992Dec31.4265.27373@dosgate>
Reply-To: "glen mead" <glen.mead@canrem.com>
Organization: Canada Remote Systems
Distribution: sci
Date: 31 Dec 92 13:51:42 EST
Lines: 20