Patent ID: 7811472

Claim:
A light-emitting device comprising: a phosphor layer containing a phosphor; and a light-emitting element, the light-emitting element having an emission peak in a wavelength range of 440 nm to less than 500 nm, the phosphor being excited with light emitted by the light-emitting element to emit light, and the light-emitting device containing at least light-emitting component light emitted by the phosphor as output light, wherein the phosphor layer contains, as a phosphor, a nitride phosphor or an oxynitride phosphor that is activated with Eu 2+ and has an emission peak in a wavelength range of 600 nm to less than 660 nm, and an alkaline-earth metal orthosilicate phosphor that is activated with Eu 2+ and has an emission peak in a wavelength range of 510 nm to less than 550 nm, and an internal quantum efficiency of the alkaline-earth metal orthosilicate phosphor is in a range of 85% to 90% under the excitation with light emitted by the light-emitting element having an emission peak in a wavelength range of 440 nm to less than 500 nm.