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PLANAR WAVEGUIDE APPARATUS WITH DIFFRACTION ELEMENT(S) AND SYSTEM EMPLOYING SAME

  • US 20150309263A2
  • Filed: 07/14/2014
  • Published: 10/29/2015
  • Est. Priority Date: 06/11/2012
  • Status: Active Grant
First Claim
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1. A waveguide apparatus, comprising:

  • a planar waveguide having at least a first end, a second end, a first face, and a second face, the second end opposed to the first end along a length of the waveguide, at least the first and the second faces forming an at least partially internally reflective optical path along at least a portion of the length of the planar waveguide, andat least one optically diffractive element that interprets the internally reflective optical path to provide a plurality of optical paths between an exterior and an interior of the planar waveguide via the first face thereof at respective positions along at least a portion of the length of the planar waveguide.

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