| 摘要 |
The present invention provides an oxynitride phosphor represented by a composition formula M(1)<SUB>1-j</SUB>M(2)<SUB>j</SUB>Si<SUB>b</SUB>Al<SUB>c</SUB>O<SUB>d</SUB>N<SUB>e </SUB>(composition formula I) or a composition formula M(1)<SUB>1-a-j</SUB>M(2)<SUB>j</SUB>Ce<SUB>a</SUB>Si<SUB>b</SUB>Al<SUB>c</SUB>O<SUB>d</SUB>N<SUB>e </SUB>(composition formula II) and containing 50% or more of a JEM phase, and a light emitting device including a semiconductor light emitting element emitting an excited light, a first phosphor that is the oxynitride phosphor according to the present invention that absorbs the excited light and emits a fluorescence, and a kind or a plurality of kinds of second phosphor(s) that absorb(s) the excited light and emit(s) a fluorescence having a longer wavelength than the fluorescence emitted by the first phosphor. Thereby, a novel oxynitride phosphor being capable of highly efficiently emitting mainly a light having a wavelength of 510 nm or less and a light emitting device using the same can be provided.
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