Phosphors containing boron and metals of Group IIIA and IIIB

Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides

Reexamination Certificate

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C252S30140H, C252S30140P, C313S486000, C313S487000, C313S639000

Reexamination Certificate

active

07128849

ABSTRACT:
A phosphor comprises: (a) at least a first metal selected from the group consisting of yttrium and elements of lanthanide series other than europium; (b) at least a second metal selected from the group consisting of aluminum, gallium, indium, and scandium; (c) boron; and (d) europium. The phosphor is used in light source that comprises a UV radiation source to convert UV radiation to visible light.

REFERENCES:
patent: 4512912 (1985-04-01), Matsuda et al.
patent: 4604540 (1986-08-01), Fukami
patent: 6509685 (2003-01-01), Justel et al.
patent: 6517741 (2003-02-01), Feldmann et al.
patent: 6673473 (2004-01-01), Letschert
patent: 6676853 (2004-01-01), Ueda et al.
patent: 406554 (1991-01-01), None
patent: 1429369 (2004-06-01), None
patent: 56-155281 (1981-12-01), None
patent: 56-155282 (1981-12-01), None
patent: 2000-290648 (2000-10-01), None
S. Shionoya and W.M. Yen, “Phosphor Handbook,” pp. 389-432, CRC Press, Boca Raton (1999).

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