Patent ID: 7737621

Claim:
A light-emitting device, comprising: a light-emitting element for emitting primary light; and a wavelength conversion unit for absorbing at least part of said primary light and emitting secondary light having a wavelength longer than that of the primary light; wherein said wavelength conversion unit includes at least a phosphor for emitting green light and a phosphor for emitting red light, and said phosphor for emitting red light includes a divalent europium-activated nitride phosphor represented by (M3 1-8 Eu g )M4SiN 3 , where M3 represents at least one kind of element selected from Mg, Ca, Sr and Ba; M4 represents at least one kind of element selected from Al, Ga, In, Sc, Y, La, Gd and Lu; and g represents a number satisfying 0.001≦g≦0.05.