Patent ID: 6943380

Claim:
A light emitting device, comprising: a light emitting element comprising a nitride semiconductor; and a phosphor which can absorb a part of light emitted from said light emitting element and can emit light of wavelength different from that of said absorbed light, wherein said phosphor comprises a divalent-europium-activated alkaline earth metal silicate represented by the formula: (2-x-y)SrO.x(Ba, Ca)O.(1-a-b-c-d)SiO 2 .aP 2 O 5 bAl 2 O 3 cB 2 O 3 dGeO 2 :y Eu 2+ wherein 0<x<1.6, 0.005<y<0.5, and 0<a, b, c, and d<0.5, and/or a divalent-europium-activated alkaline earth metal silicate represented by the formula: (2-x-y)BaO.x(Sr, Ca)O.(1-a-b-c-d)SiO 2 .aP 2 O 5 bAl 2 O 3 cB 2 O 3 dGeO 2 :y Eu 2+ wherein 0.01<x<1.6, 0.005<y<0.5, and 0<a, b, c, and d<0.5.