Phosphors containing oxides of alkaline-earth and group-IIIB...

Details Phosphors containing oxides of alkaline-earth and group-IIIB... Phosphors containing oxides of alkaline-earth and group-IIIB...

2006-07-18

2006-07-18

Koslow, C. Melissa (Department: 1755)

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C313S467000, C313S486000, C313S503000, C313S639000, C257S098000, C252S30160R, C252S30140P, C252S30140H, C252S301500, C252S30140F

Reexamination Certificate

active

07077978

ABSTRACT:
A phosphor comprises a material having a formula of AMgD10O17:Eu2+,Mn2+, wherein A is at least an alkaline-earth metal selected from the group consisting of Ba, Sr, Ca, and combinations thereof; and D is at least a metal selected from the group consisting of Al, Ga, In, and combinations thereof; wherein Eu2+ions are present in an amount from about 10 to about 50 atom percent of a combined quantity of A ions and europium ions, and Mn2+ions are present in an amount from about 5 to about 30 atom percent of a combined quantity of magnesium ions and manganese ions. The phosphor is used alone or in conjunction with other phosphors to convert UV/blue radiation emitted by a source, such as an LED or a gas discharge device, to visible light.

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S. Shionoya and W.M. Yen (ed.), “Phosphors Handbook”, pp. 389-394, 416-419, CRC Press, Boca Raton (1999).

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