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Three dimensional virtual and augmented reality display system

  • US 10,670,881 B2
  • Filed: 07/15/2019
  • Issued: 06/02/2020
  • Est. Priority Date: 11/23/2011
  • Status: Active Grant
First Claim
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1. A three-dimensional image visualization system, comprising:

  • an integrated module;

    a selectively transparent projection device for projecting an image toward an eye of a viewer from a projection device position in space relative to the eye of the viewer, the projection device being capable of assuming a substantially transparent state when no image is projected;

    wherein the projection device comprises a substantially planar transparent digital display substantially occupying a display plane; and

    an occlusion mask device coupled to the projection device and configured to selectively block light traveling toward the eye from one or more positions opposite of the projection device from the eye of the viewer in an occluding pattern correlated with the image projected by the projection device,a diffraction element configured to divide the input image light into a plurality of modes, each of the plurality of modes directed at a different angle,wherein the selectively transparent projection device is configured to allow a first mode of the plurality of modes to exit the selectively transparent projection device toward the eye, the first mode having a simulated focal distance based in part on a selectable geometry of the diffraction element,wherein the selectively transparent projection device is configured to trap at least a second mode of the plurality of modes within the selectively transparent projection device; and

    a controller operatively coupled to the integrated module and the occlusion mask device, and configured to coordinate projection of the image and associated occluding pattern.

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