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Substrate Guided Relay Having A Homogenizing Layer

  • US 20120176682A1
  • Filed: 01/10/2011
  • Published: 07/12/2012
  • Est. Priority Date: 01/10/2011
  • Status: Active Grant
First Claim
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1. A substrate guided relay, comprising:

  • a slab guide having a first end and a second end, and a first surface and a second surface;

    an input coupler disposed at the first end of the slab guide at an interface between the input coupler and the slab guide to receive an input beam and to feed the input beam into the slab guide;

    an output coupler disposed on the first surface of the slab guide to cause the multiple copies of the input beam to exit the slab guide via the output coupler as an output; and

    a homogenizer disposed on the second surface of the slab guide, wherein the homogenizer reflects at least some of the input beam to increase uniformity of the output.

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