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From: dgary@ecsvax.UUCP
Newsgroups: net.physics
Subject: Re: deflecting laser
Message-ID: <434@ecsvax.UUCP>
Date: Wed, 2-Jan-85 14:20:43 EST
Article-I.D.: ecsvax.434
Posted: Wed Jan  2 14:20:43 1985
Date-Received: Fri, 4-Jan-85 00:17:19 EST
References: <290@ssc-vax.UUCP>
Organization: Duke U Comp Ctr
Lines: 11

<>

It is also possible to deflect laser light by running it through a
moving hologram.  This is, I think, how supermarket UPC scanners
operate.
-- 

D Gary Grady
Duke University Computation Center, Durham, NC  27706
(919) 684-4146
USENET:  {decvax,ihnp4,akgua,etc.}!mcnc!ecsvax!dgary