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FLAT-PANEL OPTICAL PROJECTION APPARATUS

  • US 20120207434A1
  • Filed: 04/16/2012
  • Published: 08/16/2012
  • Est. Priority Date: 09/29/2006
  • Status: Active Grant
First Claim
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1. A light guide comprising:

  • an input slab; and

    an output waveguide to receive rays from the input slab, and to emit the rays through an output face, wherein a thickness of the input slab tapers at a constant first angle in a direction of ray travel and a thickness of the output waveguide tapers at a second angle that is different from the first angle.

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