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Phosphor and light-emitting equipment using phosphor

  • US 9,738,829 B2
  • Filed: 06/11/2015
  • Issued: 08/22/2017
  • Est. Priority Date: 11/26/2003
  • Status: Active Grant
First Claim
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1. A phosphor, comprising a CaAlSiN3 family crystal phase, wherein:

  • the CaAlSiN3 family crystal phase has a crystal structure belonging to the Cmc21 space group; and

    the CaAlSiN3 family crystal phase comprises;

    at least one element selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb;

    at least one divalent element selected from the group consisting of Mg, Ca, Sr, and Ba;

    at least one trivalent element selected from the group consisting of B, Al, Ga, In, Sc, Y, La, Gd, and Lu; and

    at least one tetravalent element selected from the group consisting of Si, Ge, Sn, Ti, Zr, and Hf.

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