PHOSPHOR AND LIGHT-EMITTING DEVICE

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Disclosed are a high luminance phosphor emitting orange-red light and a light-emitting device using such a high luminance phosphor. Specifically disclosed is a light-emitting device comprising a light-emitting element (1) having an emission peak wavelength in a range from 300 nm to 530 nm, and a phosphor (2) which absorbs light from the light-emitting element (1) and emits light having an emission peak wavelength different from that of the light-emitting element (1) through wavelength conversion. The phosphor (2) is represented by the following general formula : M15-xEuxM2mM3nO2m+(3/2)n+5 (wherein x, m and n respectively satisfy 0.0001 ≤ x ≤ 0.3, 1.0 ≤ m < 2.5 and 0 ≤ n < 2.5; M1 represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba and Zn; M2 represents at least one element selected from the group consisting of Si, Ge and Sn; and M3 represents at least one element selected from the group consisting of B, Al, Ga, In and rare earth elements).