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WHITE LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE

  • US 20130264937A1
  • Filed: 03/15/2013
  • Published: 10/10/2013
  • Est. Priority Date: 10/15/2010
  • Status: Active Grant
First Claim
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1. A white light-emitting device comprising:

  • an LED element that emits blue light; and

    a resin composition that contains a phosphor that emits yellow light and/or a phosphor that emits green light through wavelength conversion of light emitted by the LED element that emits blue light, and a phosphor that emits red light through wavelength conversion of light emitted by the LED element that emits blue light,wherein the phosphor that emits red light contains at least a Mn4+-activated fluoride complex phosphor and an Eu2+-activated alkaline earth silicon nitride phosphor, anda content ratio of the Eu2+-activated alkaline earth silicon nitride phosphor with respect to the total of the Mn4+-activated fluoride complex phosphor and Eu2+-activated alkaline earth silicon nitride phosphor contained in the resin composition ranges from 0.5 wt % to 14.0 wt %.

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