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From: dlou@dino.ucsd.edu (Dennis Lou)
Newsgroups: comp.graphics
Subject: Re: Wall sized video
Keywords: lasers, video
Message-ID: <12559@sdcc6.ucsd.edu>
Date: 6 Sep 90 14:22:36 GMT
References: <7192@eos.UUCP> <1149@mti.mti.com> <2982@amc-gw.amc.com>
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In article <2982@amc-gw.amc.com> kenb@belltown.amc.com (Ken Birdwell) writes:
[stuff about wall size laser tv with "spreckels" problem]

>can get a small sample of this stuff and try it out)  Has anyone out there 
>seen a working laser TV system? 

Where I work (Naval Ocean Sys Cen), they are working on a 3D laser
imaging system.  (I'm not sure how much I can tell you.  They gave me
a Secret level security clearance and all...)  They aim a laser at a
metal device that moves around on the X-Z plane to get depth.  What is
the "spreckels problem"?  Is it that the pixels don't come out sharp?
I noticed that the 3-D images this thing put out were kind of fuzzy,
but I always attributed that to an inaccurate scan...

I think they used diffraction crystals as reflectors, though...

-Dennis

--
Dennis Lou                Disclaimer: I don't use lame disks.
dlou@dino.ucsd.edu         "But Yossarian, what if everyone thought that way?"
[backbone]!ucsd!dino!dlou  "Then I'd be crazy to think any other way!"