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Illumination System Comprising a Red-Emitting Ceramic Luminescence Converter

  • US 20080191609A1
  • Filed: 04/13/2006
  • Published: 08/14/2008
  • Est. Priority Date: 04/19/2005
  • Status: Abandoned Application
First Claim
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1. Illumination system, comprising a radiation source and a monolithic ceramic luminescence converter comprising at least one phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of wavelength different from that of the absorbed light;

  • wherein said at least one phosphor is an europium(III)-activated rare earth metal sesquioxide of general formula (Y1-xREx)2-yO3;

    (Eu1-aAa) wherein RE is selected from the group of gadolinium, scandium, and lutetium, A is selected from the group of bismuth, antimony, dysprosium, samarium, thulium, and erbium, 0≦

    x<

    1, 0.001≦

    z≦

    0.2; and

    0≦

    a<

    1.

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