Patent ID: 8686631

Claim:
A light emitting apparatus comprising: a light emitting element of a gallium nitride-based semiconductor emitting primary light having a peak wavelength of 430-480 nm; and a light converter absorbing a part of said primary light to emit secondary light having a wavelength longer than a wavelength of said primary light, said light converter including a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphors each of which is a Î²-type SiAlON substantially represented by a general formula: Eu a Si b Al c O d N e , where 0.005â‰¦aâ‰¦0.4, b+c=12, d+e=16, the light converter further comprising phosphor particles of a divalent europium-activated nitride red light emitting phosphor expressed by a general formula (MI 1-f Eu f )MIISiN 3 , wherein MI is an alkaline-earth metal selected from the groups consisting of Mg, Ca, Sr and Ba; and MII is a trivalent metallic element selected from the group consisting of Al, Ga, In, Sc, Y, La, Gd and Lu; and 0.001<f<0.10, said phosphor particle group consisting of columnar phosphor particles in which a value obtained by dividing a longer particle diameter by a shorter particle diameter is greater than 1.0 and not greater than 3.0.