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Tri-color separating and composing optical system

  • US 5,305,146 A
  • Filed: 06/24/1992
  • Issued: 04/19/1994
  • Est. Priority Date: 06/26/1991
  • Status: Expired due to Fees
First Claim
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1. Color separating or composing optical system having an optical axis, comprising two color filters being placed on said optical axis to perform color separation or composition by color-selective reflection and passing of reading lights for reading color images written separately on respective light modulators, one of said light modulators having a photoconductive layer with a higher sensitivity in a first wavelength range, said two color filters are arranged in such a manner that a polarization of one of said reading lights impinging on said one of said light modulators, is selected to have a wavelength range which is substantially shifted from said first wavelength range so that an overlap between the wavelength range of said one of the reading lights and said first wavelength range, is minimized.

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