Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Reexamination Certificate
2006-07-18
2006-07-18
Koslow, C. Melissa (Department: 1755)
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
C257S098000, C313S467000, C313S486000, C313S487000, C313S503000, C313S639000
Reexamination Certificate
active
07077980
ABSTRACT:
A phosphor comprises europium, at least two alkaline-earth metals, and at least a Group-13 metal. In one embodiment, the phosphor has a formula selected from the group consisting of Sr4-a-zAaEuzD12O22and Sr4-a-zAaEuzD14O25; wherein A is at least an alkaline-earth metal other than strontium; D is an element selected from the group consisting of Group-13 metals, group-3 metals, and rare-earth metals; 0<a<4; 0.001<z<0.3; and 4-a-z>0. The phosphor can be used in light sources and displays.
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“Phosphor Handbook”, Shiego Shionoya et al., (ed), CRC Press, Boca Raton, Florida, pp. 389-432 (1999).
Adyam Mukunda Srinivas
Beers William Winder
Comanzo Holly Ann
Manivannan Venkatesan
Ramachandran Gopi Chandran
General Electric Company
Koslow C. Melissa
Yoder Fletcher
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