×

Image projection system and method

  • US 20040141157A1
  • Filed: 01/07/2004
  • Published: 07/22/2004
  • Est. Priority Date: 01/08/2003
  • Status: Active Grant
First Claim
Patent Images

1. An off-axis projection system for displaying an optical image on a display surface based on input image data, comprising:

  • (a) an image processing unit for receiving the input image data and generating distortion-compensated image data;

    (b) a projection light engine coupled to the image processing unit for receiving the distortion-compensated image data and projecting a distortion-compensated optical image that corresponds to the distortion-compensated image data; and

    , (c) an optical reflection assembly coupled to the projection light engine, said optical reflection assembly comprising at least one curved mirror, said curved mirror being positioned in the optical path of the distortion-compensated optical image emerging from a projection lens for producing a displayed optical image with reduced distortion on the display surface;

    wherein, said image processing unit is adapted to distortion-compensate the optical image represented by the input image data such that when said distortion-compensated optical image is projected through the projection light engine and reflected off the optical reflection assembly, the optical and geometric distortions associated with said projection light engine and the optical reflection assembly are substantially eliminated in the displayed optical image.

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