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Anisotropic collimation devices and related methods

  • US 7,348,603 B2
  • Filed: 03/07/2006
  • Issued: 03/25/2008
  • Est. Priority Date: 10/17/2005
  • Status: Expired due to Fees
First Claim
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1. A light-emitting device designed to emit light, the device comprising:

  • an interface through which emitted light passes therethrough, the interface having a dielectric function that varies spatially according to a pattern,wherein emitted light is extracted through the pattern and the pattern is arranged to provide anisotropic light emission characterized by an emission pattern on a far-field projection plane substantially parallel to the interface, wherein a first total light intensity along a first axis on the projection plane is at least 20% greater than a second total light intensity along a second axis on the projection plane.

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