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From: slag@charm.UUCP (Peter Rosenthal)
Newsgroups: net.movies
Subject: Re: 3d movies: does this make sense?
Message-ID: <361@charm.UUCP>
Date: Wed, 23-May-84 11:09:22 EDT
Article-I.D.: charm.361
Posted: Wed May 23 11:09:22 1984
Date-Received: Sat, 26-May-84 11:27:26 EDT
References: <2045@usceast.UUCP>
Organization: Physics Research - AT&T Bell Labs MH
Lines: 24

bugbuster


         Humans do not see in three D with only one eye.  If you
close one eye, even real life loses its three dimensional order.    
The human brain translates the combined images from the two
eyes into 3-d information.  I've seen systems that alternate
right and left eye images to separate the information, but 
some sort of shutter device is still required to keep the
right eye from seeing the left image and the left eye from 
seeing the right.  Although systems have been made that
do this, and they are not prohibitively expensive,  There
is an additional problem: The viewing distance and angle
are very limited;  The scene must be viewed from one
position.  
	Holograms solve this problem.  A hologram has a
different image for each viewpoint.  This automatically
separates right and left eye viewpoints, and gives
you valid images in true perspective no matter what
your viewing angle.  A recent national geographic
has an article on  holograms that is very informative.  It
even has an actual hologram on the cover.
	I don't know if the technology is advanced enough to
develop moving full length holographic pictures.