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Illumination device with LED with a self-supporting grid containing luminescent material and method of making the self-supporting grid

  • US 8,262,257 B2
  • Filed: 05/04/2009
  • Issued: 09/11/2012
  • Est. Priority Date: 05/07/2008
  • Status: Expired due to Fees
First Claim
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1. An illumination device comprising:

  • a. at least one light emitting diode (LED) arranged to emit LED emission;

    b. a heat sink;

    c. a self-supporting grid arranged downstream of the LED in contact with the heat sink, wherein the self-supporting grid comprises a plurality of grid structures defining a plurality of grid openings of varying density between the grid structures, at least one opening of the plurality of grid openings containing luminescent material therein, thereby forming a luminescent material-filled grid opening, wherein the luminescent material is arranged to absorb at least part of the LED emission and emit luminescent material emission, and wherein the LED and the luminescent material are arranged to provide light of a predetermined color downstream of the self-supporting grid.

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