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Optical system and method for use in projection systems

  • US 8,009,358 B2
  • Filed: 10/17/2004
  • Issued: 08/30/2011
  • Est. Priority Date: 10/17/2003
  • Status: Expired due to Fees
First Claim
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1. An optical system configured to provide a desired illuminating light pattern, the system comprising a light source system configured and operable to produce structured light in the form of a plurality of spatially separated light beams;

  • and a beam shaping arrangement;

    the beam shaping arrangement being configured as a diffractive optical unit comprising at least one inverse Dammann grating configured and operable for combining an array of the spatially separated light beams into a single light beam thereby significantly increasing intensity of the illuminating light.

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