Re: 3D TV

[P3D Larry Berlin <lberlin@xxxxxxxxx>]

>Date: Fri, 13 Dec 1996 15:13:35 -0500
>From: P3D Marvin Jones  comments:
>
>> >I don't think this writer has a very good grasp of what he's writing
>about.
>> >3D TV isn't about to "hit the market early next year"! The system he's
>> >describing (badly) is highly experimental, capable only of producing a
>> >minute little image in a minute little cube. 
>> 
>> Pretty big, actually (at least the one I saw). Of course at ~50^3 voxels
>> and 10 Hz refresh (according to the quote), there might be problems in 
>> trying to watch a football game using the current model. :-)
>> 
>The cube was described in a couple of articles as "about the size of a
>sugar cube." My "minute" might be a slight understatement, but I'd hardly
>call it "pretty big" either! They also say that "in a number of years" (as
>opposed to the Wired reporter's "early next year") they might actually get
>it as big as a standard computer monitor, which still isn't very big for a
>TV image!

*************  The topic in this post is NOT the small cube technology.  Go
back and read the original article and you realize that the author did know
what he was talking about. 

The small cube situation is a special kind of glass being hit with two
infrared laser beams that when the coincide, the energy creates an
illumination point. The system being described in the above quote is
completely different. It uses a spinning surface of any size, placed inside
a cylinder and spun at a speed that makes it kind of disappear. Then using a
mirror in the top, colored laser beams are shot downwards to strike the
rotating surface causing a visible dot to be produced. Since you can track
the rotation of the surface, you can build a completely round display by
timing of the laser pulses. They would have to use visible lasers for this
technology.

Larry Berlin

Email: lberlin@xxxxxxxxx
http://www.sonic.net/~lberlin/
http://3dzine.simplenet.com/


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End of PHOTO-3D Digest 1755
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