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Image projection system engine assembly

  • US 6,746,122 B2
  • Filed: 04/12/2002
  • Issued: 06/08/2004
  • Est. Priority Date: 10/17/1996
  • Status: Expired due to Fees
First Claim
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1. A projection display apparatus comprising:

  • a light source adapted to provide a light beam;

    a wide angle reflecting polarizer adapted to pass substantially all light of a first polarization component of the light beam, and to reflect substantially all light of a second polarization component of the light beam;

    a reflective surface positioned to reflect one of the first or second polarization components back towards the wide angle reflecting polarizer;

    an image engine adapted to receive one of the first or second polarization components not reflected by the reflective surface and to return to said wide angle reflecting polarizer a polarized image in which polarization of the received polarization component is shifted corresponding to an image to display to include portions of the second or first polarization components.

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