Projection system for display of parallax and perspective
AssigneeThe United States of America as represented by the United States National Aeronautics and Space Administration
InventorRobert L. Kurtz
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Abstract
A projection system for the display of parallax and perspective of a real image from a hologram in which a reference beam is projected in a sequence of several projections at selected angles of perspective through the hologram, this sequence being rapidly performed. The resulting angular spaced images emitting from the hologram are directed onto a mirror which is coordinately tilted to reflect all of the resulting images in register onto a screen where they appear as a single three-dimensional image.
Claims6
A three-dimensional holographic projection system comprising:
- positioning means for positioning a holographic transparency in a position where light may be transmitted through it;
- light source means for projecting a beam of monochromatic light along a movable path through a hologram positioned by said positioning means;
- scanning and blanking means coupled to said light source means for causing said beam to be selectively and sequentially displaced to selectively strike said hologram at a plurality of selected perspective angles and said light to be blanked except when striking said hologram at said selected perspective angles;
- a viewing screen;
- and
- mirror means responsive to resulting displaced beams omitted from the holographic transparency for reflecting said beam in register on said screen.
Dependencies are inferred from the claim text.