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Illumination Device Including a Color Selecting Panel for Recycling Unwanted Light

  • US 20080158873A1
  • Filed: 12/29/2006
  • Published: 07/03/2008
  • Est. Priority Date: 12/29/2006
  • Status: Active Grant
First Claim
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1. An illumination device comprising:

  • at least one light emitting diode that produces light having a first range of wavelengths;

    at least one wavelength converting element converting at least a portion of the light having the first range of wavelengths to light having a second range of wavelengths; and

    a color selecting panel to select light within one or more color ranges to be produced by the illumination device and select light of other color ranges to be recycled, wherein the selection of the color ranges of light to be produced and to be recycled is in at least one of the spatial domain and the temporal domain.

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