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Auto-stereoscopic augmented reality display

  • US 10,192,358 B2
  • Filed: 12/20/2012
  • Issued: 01/29/2019
  • Est. Priority Date: 12/20/2012
  • Status: Active Grant
First Claim
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1. An imaging structure implemented in a display device, the imaging structure comprising:

  • a waveguide configured for see-through viewing of an environment, the waveguide further configured to transmit light of a virtual image that is generated as a near-display object to appear at a distance in the environment when the environment is viewed through the waveguide;

    one or more sensors configured to provide reference data related to at least a position and an orientation of the imaging structure in the environment with respect to a real object in the environment; and

    switchable diffractive elements integrated in the waveguide and configured in display zones of the display device, the display zones including vector adjustments, based in part on the reference data, to account for the position and the orientation of the imaging structure and enable the virtual image that appears at the distance in the environment to be generated with an accurate viewing angle relative to a viewing angle of the real object in the environment, the switchable diffractive elements switchable to independently activate the display zones to correct for an accurate stereopsis view of the virtual image that appears at the distance in the environment,wherein;

    one or more first display zones can be activated to provide a representation of the virtual image for a right eye of a user based on tracked pupil positions of the user, one or more second display zones can be activated to provide a different representation of the virtual image for a left eye of the user based on the tracked pupil positions of the user, andthe one or more first display zones and the one or more second display zones are determined by calculating a ray-trace bisector for each of one or more tiles of the display device relative to a current bisector eye position.

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