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OPTICAL PATTERN PROJECTION

  • US 20100284082A1
  • Filed: 07/21/2010
  • Published: 11/11/2010
  • Est. Priority Date: 01/21/2008
  • Status: Active Grant
First Claim
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1. Optical apparatus, comprising first and second diffractive optical elements (DOEs) arranged in series to diffract an input beam of radiation,wherein the first DOE is configured to apply to the input beam a pattern with a specified divergence angle, while the second DOE is configured to split the input beam into a matrix of output beams with a specified fan-out angle, andwherein the divergence and fan-out angles are chosen so as to project the radiation onto a region in space in multiple adjacent instances of the pattern.

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