Illumination device

  • US 8,414,138 B2
  • Filed: 11/03/2009
  • Issued: 04/09/2013
  • Est. Priority Date: 11/06/2008
  • Status: Active Grant
First Claim
Patent Images

1. Illumination device, comprising:

  • at least one light emitting diode (LED) adapted to emit light having an emission maximum in a first wavelength range;

    at least one LED adapted to emit light having an emission maximum in a first subrange of a second wavelength range;

    at least one LED adapted to emit light having an emission maximum in a second subrange of the second wavelength range; and

    a wavelength converting material arranged to receive light of at least said first wavelength range and having an emission maximum in a third wavelength range which is between said first wavelength range and said second wavelength range.

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