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Projection color display apparatus

  • US 5,135,300 A
  • Filed: 01/25/1991
  • Issued: 08/04/1992
  • Est. Priority Date: 02/01/1990
  • Status: Expired due to Fees
First Claim
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1. A projection color display apparatus for projecting a color image on a screen comprising:

  • a plurality of light sources having planar light-flux-emitting portions for emitting a plurality of light source fluxes;

    a plurality of optical interference filters provided on the light-flux-emitting portion of each of said plurality of light sources for emitting a plurality of light fluxes perpendicular to a surface of said planar light-flux-emitting portions;

    a plurality of light valves disposed in a path of each of the plurality of light fluxes emitted by said plurality of light sources so as to modulate the plurality of light fluxes in two dimensions; and

    an optical synthetic system for synthesizing the modulated plurality of light fluxes into one combined light flux.

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