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Light-emitting diode device

  • US 6,521,915 B2
  • Filed: 03/14/2001
  • Issued: 02/18/2003
  • Est. Priority Date: 03/14/2000
  • Status: Active Grant
First Claim
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1. A light-emitting diode device, comprisinga light-emitting element for emitting light of blue to green region and a fluorescent substance containing a phosphor expressed by a general formula AEu(1−

  • x)LnxB2O8 for converting a wavelength of the light emitted from the light-emitting element, wherein A is an element selected from the group consisting of Li, K, Na and Ag;

    Ln is an element selected from the group consisting of Y, La and Gd; and

    B is W or Mo; and

    x is number equal to or larger than 0, but smaller than 1.

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