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Home Control Computers Auto-stereoscopic-viewing-system-using-mounted-projection

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 Auto-stereoscopic viewing system using mounted projection

Details
Inventors: Covannon, Edward; Agostinelli, John A.; Mir, Jose M.;
Assignee: Eastman Kodak Company (Rochester, NY)
Primary Examiner: Adams; Russell
Assistant Examiner: Koval; Melissa
Attorney, Agent or Firm: Pincelli; Frank

Autostereoscopic images are produced by projecting a stereo pair of images onto a modified cube-corner retroreflective material. The cube-corner differs from that commonly available in that it has been altered to return the light to viewers eyes rather than directly back to the source of the projection.

DETAILED DESCRIPTION The present invention provides a superior solution in that the system invented has all the benefits of a head-mounted projection system coupled with retro-reflective display, but by eliminating the need for beam splitters it addresses the previously described shortcomings of encumbrance, lack of brightness, weight and fragility.
This is accomplished by using a modified cube-corner retro-reflective material.
Normally, cube-corner material reflects a beam back directly along the beam's source path.
By using a deformed cube-corner material, the beam is reflected back along a different path directly to the eye rather than to the projector.
Because the modification of the retro-reflective behavior is accomplished by reflection (not diffraction) in the modified cube-corner elements, the modified screen functions properly with multicolor and even with full color images.


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