Not quite 3D, but I've always wondered about using a cylinder with
mirror facets on it to do the horizontal and vertical scanning of a laser
video projection system. For the US, there'd be 525 mirror faces around
the cylinder, and it would rotate 30 revolutions per second. As the
cylinder rotates, the reflected beam would get a horizontal scan. At the
end of the horizontal scan, another mirror face would rotate into
position dropping the reflected beam down a little and throwing it back
to the left side of the image. Some fancy machining, but seems like it'd
be possible.

Harold



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Lighting control for theatre and television at http://www.dovesystems.com

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