Patent ID: 8551362
Filing Date: 2013-10-08
Classification: C04B,C09K,H01L,H05B,Y02B,Y10S

Abstract:
1. A light-emitting device comprising a light-emitting element and a phosphor layer, the light-emitting element being a blue light-emitting element that emits light having an emission peak in a wavelength range of 440 nm to less than 500 nm, the phosphor layer containing a yellow phosphor having an emission peak in a wavelength range of 560 nm to less than 600 nm and a red phosphor having an emission peak in a wavelength range of 600 nm to less than 660 nm, the red phosphor being a nitride or oxynitride containing Eu the yellow phosphor and the red phosphor being excited with light emitted by the blue light-emitting element to emit light, and output light of the light-emitting device containing light-emitting components emitted by the yellow phosphor, the red phosphor, and the blue light-emitting element, wherein the phosphor layer substantially contains no phosphor other than those activated with Eu the yellow phosphor has an excitation peak on a shorter wavelength side than an excitation wavelength as a peak of the light emitted by the blue light-emitting element.