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Color imaging systems and methods

  • US 20010000971A1
  • Filed: 12/15/2000
  • Published: 05/10/2001
  • Est. Priority Date: 04/07/1995
  • Status: Active Grant
First Claim
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1. A system for separating and combining three spectrums of light, comprising:

  • first, second, third and fourth polarizing beamsplitters, wherein each polarizing beamsplitter is configured to allow light having a first polarization orientation to pass therethrough, wherein each polarizing beamsplitter is configured to reflect light having a second polarization orientation, and wherein each polarizing beamsplitter has two interior sides adjacent two other polarizing beamsplitters, and two exterior sides that are not adjacent other polarizing beamsplitters; and

    a first retarder stack located adjacent an exterior side of the first polarizing beamsplitter;

    a second retarder stack located adjacent an interior side of the first polarizing beamsplitter; and

    a third retarder stack located between interior sides of two of the polarizing beamsplitters.

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