LIGHT-EMITTING DEVICE

摘要

Long-term stability of emission characteristics or stability of emission characteristics among individual devices is improved. Specifically disclosed is a light-emitting device comprising a first light-emitting body and a second light-emitting body which emits light by absorbing the light from the first light-emitting body, wherein a phosphor whose absorption spectrum satisfies the formula (I) below is used as the phosphor contained in the second light-emitting body. 1 = P(?)_min/P(?)_max = 0.3 (I) (In the formula (I), P(?) represents the intensity of the absorption spectrum at a wavelength ?; P(?)_max represents the maximum value of P(?) when 400 nm = ? = 450 nm; and P(?)_min represents the minimum value of P(?) when 400 nm = ? = 450 nm.)