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Light-emitting device

  • US 9,112,123 B2
  • Filed: 10/28/2011
  • Issued: 08/18/2015
  • Est. Priority Date: 10/29/2010
  • Status: Active Grant
First Claim
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1. A light-emitting device, comprising:

  • a light-emitting element to emit a blue light; and

    a phosphor comprising a single monocrystal to emit a yellow light by being excited by the light emitted from the light-emitting element,wherein the phosphor comprises a composition represented by Y3-x-yLxMyAl5-zNzO12-w, where L is Gd or Lu, M is one or more elements selected from the group consisting of Ce, Tb, Eu, Yb, Pr, Tm and Sm, N is Ga or In, 0≦

    x<

    3, 0.003≦

    y≦

    0.2, 0≦

    z≦

    5 and −

    0.2≦

    w≦

    0.2.

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