Fluorescent powder containing alkali eath metal and IIIB metal oxide and light source

Fluorescent powder containing alkali eath metal and IIIB metal oxide and light source

  • CN 1,470,596 A
  • Filed: 06/27/2003
  • Published: 01/28/2004
  • Est. Priority Date: 06/28/2002
  • Status: Active Grant
First Claim
Patent Images

1. the fluorescent material of the oxide compound of oxide compound that comprises at least a alkaline-earth metal and at least a IIIB family metal, wherein said alkaline-earth metal is selected from strontium, barium, calcium and combination thereof, described IIIB family metal is selected from aluminium, gallium, indium and combination thereof, described fluorescent material is ion-activated with at least a rare earth metal that comprises europium at least, and described fluorescent material has following general formula:

  • (M 1-xRE x) yD 2O 4

    Wherein M is described at least a alkaline-earth metal;

    RE is the described rare earth metal that comprises europium at least;

    D is the metal of described at least a IIIB family;

    0.001<

    x<

    0.3, and y satisfies a kind of condition that is selected from 0.75<

    y<

    1 and 4<

    y<

    1.1.

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