PHOSPHOR PARTICLE, WAVELENGTH TRANSFORMER AND LIGHT EMITTING APPARATUS

PROBLEM TO BE SOLVED: To provide a phosphor particle the luminescence intensity of which can be restrained from being deteriorated with time in a high-temperature and high-humidity atmosphere and to provide a wavelength transformer and a light emitting apparatus. SOLUTION: The phosphor particle 31 c...

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1. Verfasser:	FUKUTOME MASATO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SEMICONDUCTOR DEVICES
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a phosphor particle the luminescence intensity of which can be restrained from being deteriorated with time in a high-temperature and high-humidity atmosphere and to provide a wavelength transformer and a light emitting apparatus. SOLUTION: The phosphor particle 31 consisting of a compound oxide containing Eu, Mg, Mn, Si and M1(M1is at least one of Ba, Sr and Ca) is provided with: a core part 33 consisting of M13MgSi2O8containing Eu and Mn; and a shell part 35 which is formed on the periphery of the core part 33 to surround the core part 33 and consists of M1MgSiO4containing Eu and Mn. COPYRIGHT: (C)2009,JPO&INPIT