ALKALINE EARTH METAL SILICATE PHOSPHOR AND METHOD FOR PRODUCING THE SAME

ALKALINE EARTH METAL SILICATE PHOSPHOR AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide an alkaline earth metal silicate phosphor to which Eu is added as an activator, and which has an emission peak wavelength of 600 nm or more, high luminance and excellent color rendering properties, and to provide a method for producing the same.SOLUTION: An alkaline...

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Bibliographische Detailangaben
Hauptverfasser: KATO HIDEKI, TETSUKA SATOKO, KOMUKAI TETSUSHI, KAKIHANA MASATO, YOKOYAMA JUN
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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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an alkaline earth metal silicate phosphor to which Eu is added as an activator, and which has an emission peak wavelength of 600 nm or more, high luminance and excellent color rendering properties, and to provide a method for producing the same.SOLUTION: An alkaline earth metal silicate phosphor is represented by composition formula (1):(SrCaBaEu)SiO, and has an emission peak wavelength of 600 nm or more and a circularity of 85% or more. In the formula (1), a, b, c, d, e and f satisfy 0.4