STRONTIUM ALUMINATE LUMINOUS BODY HAVING HIGH BRIGHTNESS

PROBLEM TO BE SOLVED: To provide a strontium aluminate luminous body which shows a rich multi-color property and a greatly improved, chemically stable high-brightness and long-afterglow. SOLUTION: A luminous body having a high brightness contains a strontium aluminate mother crystal belonging to the...

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Hauptverfasser:	SUMIDA YUKIO, BAKU HEIBON
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a strontium aluminate luminous body which shows a rich multi-color property and a greatly improved, chemically stable high-brightness and long-afterglow. SOLUTION: A luminous body having a high brightness contains a strontium aluminate mother crystal belonging to the monoclinic system or the orthorhombic system which generally has the formula: (Sr1-mEum)2Al6O11 or (Sr1-m-kEumDyk)2Al6O11 (wherein m and k are each a value within the range of 0