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White light emitting device

  • US 7,227,190 B2
  • Filed: 09/22/2003
  • Issued: 06/05/2007
  • Est. Priority Date: 09/30/2002
  • Status: Expired due to Term
First Claim
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1. A white light emitting device, comprising:

  • a light emitting element comprising a peak wavelength of 500 nm or less;

    a first phosphor to absorb a light emitted from the light emitting element and to emit a light comprising a yellow wavelength different from a wavelength of the light absorbed; and

    a second phosphor comprising an emission wavelength different from at least that of the first phosphor, wherein the first phosphor comprises an alkaline earth metal silicate.

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