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From: don@nscpdc.UUCP (Don McGlauflin)
Newsgroups: net.audio,net.video
Subject: Re: CD Laser Frequency
Message-ID: <602@nscpdc.UUCP>
Date: Tue, 16-Sep-86 12:31:46 EDT
Article-I.D.: nscpdc.602
Posted: Tue Sep 16 12:31:46 1986
Date-Received: Sat, 27-Sep-86 17:58:48 EDT
References: <115@mruxc.UUCP> <1570@vax135.UUCP> <14914@onfcanim.UUCP> <1747@well.UUCP>
Reply-To: don@nscpdc.UUCP (Don McGlauflin)
Organization: NSC Portland Development Center, Portland Oregon
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Xref: watmath net.audio:9567 net.video:3321

In article <1747@well.UUCP> rab@well.UUCP (Bob Bickford) writes:
><WHAT line ea
>
>   In the reference article excellent points are made about safety with
>Lasers in general.  Without minimizing that, I'd like to mention that
>I was under the distinct impression that Infrared light does not penetrate
                          ^^^^^^^^^^
>the cornea (very well) and thus an Infrared Laser is much less likely
>than a visible one to damage the retina.  (Maybe it will still damage the
>cornea, however....)  Or is it because we are here discussing Near Infrared
>light, that this point becomes moot?
>
>-- 
>Robert Bickford     {lll-crg,hplabs}!well!rab


*********** WARNING! INFRARED LASERS ARE VERY DANGEROUS TO THE EYES! **********

Please! Please! Please!  Don't post this kind of stuff unless you KNOW.
I have a friend who was permanently blinded by a 20 mw infrared laser. It took
only a fraction of a second. He says: "I couldn't tell when it was on, or where
it was pointed, because I couldn't see it."

Moral: be careful!