×

Polarized projection display

  • US 7,213,930 B2
  • Filed: 04/18/2005
  • Issued: 05/08/2007
  • Est. Priority Date: 04/18/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A projection display system, comprising:

  • a transparent screen;

    a polarizer on the transparent screen, the polarizer having a first polarization direction;

    a retarder plate on a first side of the transparent screen;

    a mirror on the first side of the transparent screen;

    a projector on a second side of the transparent screen, wherein;

    the projector projects an image through the transparent screen, the polarizer, the retarder plate, and onto the mirror;

    the mirror reflects the image onto the polarizer so that the reflected image is visible from the first side of the transparent screen and invisible from the second side of the transparent screen.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×