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Phosphor mixture and light emitting device

  • US 20060197432A1
  • Filed: 08/08/2005
  • Published: 09/07/2006
  • Est. Priority Date: 03/01/2005
  • Status: Active Grant
First Claim
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1. A phosphor mixture, which emits a visible light under an excitation of an excitation light of ultraviolet to green color, wherein under the excitation of the excitation light with a wavelength range from 430 nm to 500 nm, a peak value of a relative emission intensity at the temperature of 25°

  • C. is defined as P25, and the peak value of the relative emission intensity at the temperature of T°

    C. is defined as PT, and when the value of T is changed in a range from 25°

    C. to 200°

    C., the value of (100×

    (P25×

    PT)/P25) is within ±

    25.

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