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Lighting devices using feedback enhanced light emitting diode

  • US 20040066824A1
  • Filed: 05/08/2003
  • Published: 04/08/2004
  • Est. Priority Date: 05/08/2002
  • Status: Active Grant
First Claim
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1. A lighting device comprising:

  • a light source comprising at least;

    a first feedback layer adapted to receive and reflect light;

    a first electrode formed on the first feedback layer;

    one or more semiconducting layers formed over the first electrode, at least one of the one or more semi-conducting layers comprising luminescent material;

    a second electrode disposed over the one or more semiconducting layers; and

    a second feedback layer adapted to receive and reflect light disposed over the second electrode; and

    ;

    a light distribution element disposed adjacent to one or both of the first feedback layer and the second feedback layer and adapted to distribute light emitted therefrom.

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