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From: frodo@wcom.UUCP (Jim Scardelis)
Newsgroups: net.audio
Subject: Re: cleaning cd-player optics
Message-ID: <148@wcom.UUCP>
Date: Wed, 17-Jul-85 13:55:30 EDT
Article-I.D.: wcom.148
Posted: Wed Jul 17 13:55:30 1985
Date-Received: Sun, 21-Jul-85 02:26:48 EDT
References: <692@charm.UUCP>
Organization: Warner Computer Systems - Saddle Brook, NJ
Lines: 20

> Did someone on this net really say that cd-player optics
> don't need cleaning because the laser burns the dust
> off the optics?  How can this be?  To do that you need
> megaWatts of power, and you have to focus.  The diddy little
> diode in there certainly won't do that.  Also, the dust
> is on the optics, where the light is not focussed.  Also,
> if there's enough power to burn dust off a lens, then that
> litte explosion leaves a defect on the glass surface with
> a lower breakdown threshold, which then gets damaged itself.
> Also, ....HELP!.....urp .... (plop)

	...and imagine the effect on the lowly plastic surface of the
CD itself as the now focused power of the laser sizzles it away....
-- 
				Jim Scardelis
uucp: {vax135|ihnp4}!timeinc!wcom!frodo		
ARPA: 1891@NJIT-EIES.MAILNET@MIT-MULTICS.ARPA
"The opinions expressed herein are those of my computer, and not necessarily
      those of myself, Warner Computer Systems, or any other computer or
        company along the line. "