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Full color three-dimensional projection display

  • US 4,995,718 A
  • Filed: 11/15/1989
  • Issued: 02/26/1991
  • Est. Priority Date: 11/15/1989
  • Status: Expired due to Term
First Claim
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1. A full-color, three-dimensional single display comprising:

  • first source means for providing a first light of first imagery having a first color and a first polarization;

    second source means for providing a second light of second imagery having a second color and a second polarization;

    combining means for combining the first and second lights into a third light;

    projection means for projecting the third light on display means;

    polarization switching means, situated between said source means and said display means, for switching the first polarization to the second polarization and for switching the second polarization to the first polarization;

    first source switching means, connected to said first source means and to said polarization switching means, for switching the first imagery to the second imagery and vice versa coinciding with the switching of said polarization switching means; and

    second source switching means, connected to said second source means and to said polarization switching means, for switching the second imagery to the first imagery and vice versa coinciding with the switching of said first source switching means;

    wherein;

    a viewer looking at said display means with one eye through a first lens having the first polarization and looking at said display means with another eye through a second lens having the second polarization, is enabled to see full-color, three-dimensional third imagery composed of the first and second imageries.

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