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Optical waveguide using overlapping optical elements

  • US 10,175,423 B2
  • Filed: 05/31/2017
  • Issued: 01/08/2019
  • Est. Priority Date: 05/31/2017
  • Status: Active Grant
First Claim
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1. An optical waveguide comprising:

  • a first surface;

    a second surface; and

    a first optical element disposed on the first surface or the second surface and defining a first region; and

    a second optical element disposed on the first surface or the second surface and defining a second region, wherein the first optical element overlaps the second optical element to define a third region and a fourth region, wherein the third region is configured to;

    receive a beam of light; and

    in-couple the received beam of light into the optical waveguide;

    wherein the first and second regions are configured to cause the received beam of light to traverse within the optical waveguide in a first direction; and

    wherein the fourth region is configured to out-couple the received beam of light from the optical waveguide in a second direction.

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