🚀 go-pugleaf

In article <WEX.90Feb26123354@sitting.pws.bull.com> wex@sitting.pws.bull.com (Alan Wexelblat) writes:
>
>How about this: imagine that you have a desktop display that's capable of
>creating a true 3D image of whatever you want.  The display is 3D
>holographic for all viewers at all angles.  You can have whatever input
>device(s) you like from today's catalogues.  What do you do with this setup?
>
Alan,

A device similar to your discription was invent at MIT about ten years ago, and
subsequently build and sold by Genisco.  Although it did not permit a 360
degree view, it did offer at least a 90 degree view.  Its best feature, 
however,was its lack of a requirement for the viewer to wear glasses of any 
type.

The device used a high frame-rate monochrome CRT, which was viewed off the 
surface of a mirror.  The mirror was mounted on a synchronously moving voice
coil (30/60 cps, I believe).  The frames displayed on the monitor were slices
of the 3D object.  Because the frames were presented at a high enough rate, and
each frame was viewed at a different distance form the observer (the moving 
mirror), the effect of of a rather solid object in 3-space was created within 
the brain of the observer.

I saw the device once and was quite impressed.  I don't know if its still being sold.