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Color image intensification and projection using deformable mirror light valve

  • US 3,912,386 A
  • Filed: 06/14/1974
  • Issued: 10/14/1975
  • Est. Priority Date: 06/14/1974
  • Status: Expired due to Term
First Claim
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1. A color image intensifier and projector, comprising a light valve including, in order, a flexible conductive mirror, a deformable layer, a photoconductive layer, a transparent conductive layer, and a plurality of optical diffraction gratings each for a different color, means to apply an electric potential across said flexible conductive mirror and said transparent conductive layer, means to project an input color image through said gratings to said photoconductive layer, whereby said deformable layer and flexible conductive mirror thereon can be deformed in accordance with the color image as modified by the diffraction gratings, a Schlieren optical system including means to direct light from a source to said flexible conductive mirror, and means to collect reflected light and direct it through a fourier transform plane to a utilization plane, and a spatial filter located in said fourier transform plane and having a pattern to recreate the color image at said utilization plane.

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