Display with multi-surface eyepiece

  • US 5,903,397 A
  • Filed: 05/04/1998
  • Issued: 05/11/1999
  • Est. Priority Date: 05/04/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. An augmented scanning display apparatus, comprising:

  • an image source for generating image light;

    a scanner for scanning the image light along a predetermined path;

    an eyepiece having a first surface upon which the scanned image light impinges, the first surface reflecting the scanned image light onto a retina, the eyepiece having a second surface upon which background light impinges, the eyepiece being transmissive to the background light received at the second surface, the background light passing through the eyepiece from the second surface and exiting at a third surface toward the retina, wherein the second surface has a first curvature and the third surface has a second curvature different from the first curvature causing refractive correction of the background light entering the retina.

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