PHOSPHOR BLEND FOR A COMPACT FLUORESCENT LAMP AND LAMP CONTAINING SAME

A phosphor blend for a compact fluorescent lamp is described wherein the phosphor blend comprises a green-emitting Tb3+ phosphor, a Y2O3:Eu3+ phosphor, a Sr6BP5O20:Eu2+ phosphor, a Mg4GeO5.5F:Mn4+ phosphor, and optionally a BaMgAl11O17:Eu2+ phosphor, wherein the blend contains from 1% to 20% by weig...

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Hauptverfasser:	LEVIN, ROBERT E, HUNT, ROGER B., JR, CHAU, CHUNG NIN, CAVALLARO, ALBERT M
Format:	Patent
Sprache:	eng ; fre
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:	A phosphor blend for a compact fluorescent lamp is described wherein the phosphor blend comprises a green-emitting Tb3+ phosphor, a Y2O3:Eu3+ phosphor, a Sr6BP5O20:Eu2+ phosphor, a Mg4GeO5.5F:Mn4+ phosphor, and optionally a BaMgAl11O17:Eu2+ phosphor, wherein the blend contains from 1% to 20% by weight of the Sr6BP5O20:Eu2+ phosphor and from 5% to 30% by weight of the Mg4GeO5.5F:Mn4+ phosphor. A compact fluorescent lamp having a phosphor coating containing the phosphor blend produces a light that is perceived as more pleasing than the light produced by standard compact fluorescent lamps. La présente invention concerne un mélange de luminophores destiné à une lampe fluorescente compacte, le mélange de luminophores comprenant un luminophore Tb3+ émettant dans le vert, un luminophore Y2O3:Eu3+, un luminophore Sr6BP5O20:Eu2+, un luminophore Mg4GeO5.5F:Mn4+, et éventuellement un luminophore BaMgAl11O17:Eu2+, le mélange contenant de 1 % à 20 % en poids de luminophore Sr6BP5O20:Eu2+ et de 5 % à 30 % en poids de luminophore Mg4GeO5.5F:Mn4+. Une lampe fluorescente compacte ayant un revêtement de luminophores contenant le mélange de luminophores produit une lumière qui est perçue comme plus plaisante que la lumière produite par des lampes fluorescentes compactes standards.