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From: petersen@ucbvax.ARPA (David A. Petersen)
Newsgroups: net.graphics
Subject: Stereo Picture TV
Message-ID: <8794@ucbvax.ARPA>
Date: Fri, 5-Jul-85 01:50:44 EDT
Article-I.D.: ucbvax.8794
Posted: Fri Jul  5 01:50:44 1985
Date-Received: Sat, 6-Jul-85 05:34:00 EDT
Reply-To: bradley@esvax.UUCP (Paul Bradley)
Organization: University of California at Berkeley
Lines: 23

When is somebody going to come out with a good stereo picture tv system?

   It seems like all that is needed is an electrically controllable
polarizer in front of the screen, say a fast liquid crystal panel.
Alternate images would be visible to each eye if you wore polarized glasses.
I've seen color stereo slides using a projector which projected two images
of different polarizations and a special screen which did not disturb the
polarization.

   It was pretty impressive; sometimes everyone in the lecture hall
just about went cross-eyed trying to look at something that was six inches from
their noses.  I saw slides of cave passages and it was the closest thing to
being there I've ever seen.
	
   It seems like this would be great for a big color projection tv.
There is still the inconvenience of having to wear polarized glasses, but
it seems like a small price to pay. Ditto for the extra bandwidth required
to send twice as many images for the same picture quality.

   Maybe it will have to wait until after the high resolution tv standard
is developed and in place.

					Paul Bradley