light antenna

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From: Eric Friedman (mcelover@yahoo.com)
Date: Fri Dec 03 2004 - 10:56:48 PST 

Message-ID: <20041203185648.8454.qmail@web51405.mail.yahoo.com>
Date: Fri, 3 Dec 2004 10:56:48 -0800 (PST)
From: Eric Friedman <mcelover@yahoo.com>
Subject: light antenna

what exactly is a light antenna? didn't edison invent a visible light transmitting antenna when he finally made a fillament?
 
or are we talking about some kind of coherent, modulated visible light?
 
--eric

                
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