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EYE-TRACKING SYSTEM FOR HEAD-MOUNTED DISPLAY

  • US 20140375789A1
  • Filed: 06/25/2013
  • Published: 12/25/2014
  • Est. Priority Date: 06/25/2013
  • Status: Active Grant
First Claim
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1. A see-through head-mounted display system comprising:

  • a freeform prism;

    a display device configured to emit display light through the freeform prism to an eye of a user; and

    an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.

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