Crystal Ball 3D Display

[P3D Gabriel Jacob <jacob@xxxxxxxxxxxxxx>]

Here is another article in Pop Mechanics which describes the technology
that was posted in P3D from the Los Angeles Times and the Economist a 
while back. It's on page 14 in this months issue (Dec96).  This is the
one that reproduces 3D using a crystal cube and lasers.

>> A doodle sketched by a Stanford University graduate student has given
the entertainment industry a glimpse of the future of 3D projection.
 Elizabeth Downing's novel 3D display uses scanners from surplus optical-
disc players to trace two infrared laser beams through a transparent cube
that contains light-emitting impurities. Where the two beams intersect,
their combined energy causes the impurities to emit a burst of red, blue
or green light. The eye sees the illusion of a color image.
 The idea isn't entirely new. Researchers at Batelle Memorial Institute,
in Columbus, Ohio, tried without success to develop a similiar device in 
the early 1970s.
 Unless you're sitting on a fat wallet, don't throw away your funny
looking 3D glasses just yet. Downing's display is only the size of a cube
of sugar, and she estimates that building a 10-in. prototype will cost
about $80,000.<<

Didn't like the remark about the funny looking 3D glasses. ;-)

Gabriel

 




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