| abstract |
The present invention provides a light-emitting device capable of realizing red light emission with high luminous flux. A light-emitting device comprising: a light-emitting element having an emission peak wavelength in a range from 400 nm to 500 nm, and a light-emitting element having an emission peak wavelength in a range from 630 nm to 670 nm and having a composition represented by the following formula (I) The fluorescent member of the fluorescent substance, the light-emitting device emits light with an x value of chromaticity coordinates in CIE1931 of 0.640 or more. Ca s Sr t Eu u Si v Al w N x (I) (in formula (I), s, t, u, v, w and x satisfy 0.25≤s≤0.5, 0.4≤t≤0.75, 0.01≤u≤ 0.04, 0.8≤s+t+u≤1.1, 0.8≤v≤1.2, 0.8≤w≤1.2, 1.8≤v+w≤2.2, 2.5≤x≤3.2.). |