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Lighting device and method of generating output illumination

  • US 8,690,406 B2
  • Filed: 11/11/2009
  • Issued: 04/08/2014
  • Est. Priority Date: 11/21/2008
  • Status: Active Grant
First Claim
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1. A lighting device comprisingat least one light-emitting device,at least one optical element disposed in an optical path of the light-emitting device for generating output illumination having at least one directional characteristic, anda screen-like member for changing at least one physical property of light passing therethrough and an optical device for generating an intermediate image on the screen-like member, wherein the screen-like member and the optical device are located in the optical path between the light-emitting device and the optical element, wherein the optical element is configured for projecting said image.

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