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Compact display system controlled by eye position sensory system

  • US 6,603,443 B1
  • Filed: 10/29/1998
  • Issued: 08/05/2003
  • Est. Priority Date: 12/21/1994
  • Status: Expired due to Term
First Claim
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1. A virtual image electronic display system comprising:

  • a microdisplay for producing a source image, the microdisplay having a display area equal to or less than about 400 mm2;

    a beamsplitting magnification optic for receiving light corresponding to the source image, and magnifying and reflecting a portion of the light as a magnified virtual image of the source image;

    a reflective element positioned to receive and reflect the magnified virtual image back to the beamsplitting magnification optic;

    wherein the beamsplitting magnification optic is positioned to receive the reflected magnified virtual image, the refractive and partially reflective surfaces of the beamsplitting magnification optic magnify and transmit a portion of the reflected magnified virtual image through the beamsplitting magnification optic as a compound magnified image of the magnified virtual image;

    an eye position sensor for detecting a direction of an observer'"'"'s eye viewing the magnified virtual image; and

    a control circuit for controlling a function of the display system by using the detected direction of the observer'"'"'s eye.

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