UPCONVERSION TYPE PHOSPHOR AND METHOD OF MANUFACTURING THE SAME

UPCONVERSION TYPE PHOSPHOR AND METHOD OF MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide an upconversion type phosphor which exhibits high luminance and high chemical stability and is made of ceramic allowing easy manufacture.SOLUTION: There is provided an upconversion type phosphor made of ceramic represented by general formula (1), general formula (2)...

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Bibliographische Detailangaben
Hauptverfasser: HARITANI SEIJI, TOMITA TSUNEYUKI
Format: Patent
Sprache:eng ; jpn
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 an upconversion type phosphor which exhibits high luminance and high chemical stability and is made of ceramic allowing easy manufacture.SOLUTION: There is provided an upconversion type phosphor made of ceramic represented by general formula (1), general formula (2) or general formula (3) in the figure, excluding specific upconversion type phosphors. (In general formula (1), general formula (2) and general formula (3), a, b+c and b:c are in specific ranges and a+b+c=1 is satisfied, Mand Mare each a specific trivalent metal atom, and Mis a specific pentavalent metal atom.) 【課題】本発明の目的は、高輝度であり、高い化学的安定性を示し、かつ、製造が容易であるセラミックスからなるアップコンバージョン型蛍光体を提供すること。【解決手段】下記一般式（１）、一般式（２）または一般式（３）で表されるセラミックスからなるアップコンバージョン型蛍光体；（上記一般式（１）、一般式（２）および一般式（３）中、ａ、ｂ＋ｃ、ｂ：ｃは特定の範囲であり、ａ＋ｂ＋ｃ＝１であり、Ｍ1、Ｍ2は、それぞれ特定の３価の金属原子であり、Ｍ3は、特定の５価の金属原子である。）但し、特定のアップコンバージョン型蛍光体は除く。【選択図】なし