Patent ID: 9541238
Date: 2017-01-10
CPC Classifications: C09K,F21K,F21V,F21Y,G02B,G02F,H01L,H05B

Claim:
1. A semiconductor light emitting device, comprising: a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination, wherein the phosphors comprise a green emitting phosphor having at least one emission peak in a wavelength region of from 515 to 550 nm and a red emitting phosphor having at least one emission peak with a half-value width of at most 10 nm in a wavelength region of from 610 to 650 nm; the red emitting phosphor has substantially no excitation spectrum in the emission wavelength region of the green emitting phosphor and comprises Mn the green emitting phosphor and the red emitting phosphor have the variation rate of the emission peak intensity at 100° C. to the emission intensity at 25° C. of at most 40%, when the wavelength of the excitation light is 400 nm or 455 nm; and wherein the red emitting phosphor comprises a crystal phase having a chemical composition represented by the following formula (1′), wherein the proportion of Mn based on the total mols of M wherein M M R is an activated element comprising at least Mn, and wherein thermally decomposed F amount per 1 g of the red emitting phosphor is at most 2 μg/min.