BOROPHOSPHATE PHOSPHOR AND LIGHT SOURCE

BOROPHOSPHATE PHOSPHOR AND LIGHT SOURCE

PROBLEM TO BE SOLVED: To provide a single phosphor excited by a near-ultraviolet ray radiation source and capable of emitting white light without requiring a combination with some other phosphor and a light source including the phosphor.SOLUTION: The phosphor capable of absorbing a radiation having...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SVEN ROESLER, DUAN CHENG-JUN
Format: Patent
Sprache:eng ; jpn
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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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a single phosphor excited by a near-ultraviolet ray radiation source and capable of emitting white light without requiring a combination with some other phosphor and a light source including the phosphor.SOLUTION: The phosphor capable of absorbing a radiation having the first wavelength range of an electromagnetic spectrum to emit a radiation having the second wavelength range of the electromagnetic spectrum is a borophosphate activated by Euions and is expressed by the following general formula. ABaSrEuBPO(where, A is at least one of monovalent alkali metal ions selected from a group including Li, K and Na, 0