Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Reexamination Certificate
2003-12-04
2009-06-09
Group, Karl E (Department: 1793)
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
C252S30140R, C257S088000, C313S503000
Reexamination Certificate
active
07544309
ABSTRACT:
The invention is concerned with an illumination system, comprising a radiation source and a fluorescent material comprising at least one phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of wavelength different from that of the absorbed light; wherein said at least one phosphor is an oxido-nitrido-silicate of general formula EA2-zSi5-aBaN8-aOa:Lnz, wherein 0<z≦1 and 0<a<5; comprising at least one element EA selected from the group consisting of Mg, Ca, Sr, Ba and Zn and at least one element B selected from the group consisting of Al, Ga and In, and being activated by a lanthanide selected from the group consisting of cerium, europium, terbium, praseodymium and mixtures thereof. The invention is also concerned with a phosphor, which is an oxido-nitrido-silicate of the general formula EA2-zSi5-aBaN8-aOa:Lnz, wherein 0<z≦1 and 0<a<5; comprising at least one element EA selected from the group consisting of Mg, Ca, Sr, Ba and Zn and at least one element B selected from the group consisting of Al, Ga and In, and being activated by a lanthanide selected from the group consisting of cerium, europium, terbium and mixtures thereof.
REFERENCES:
patent: 5951915 (1999-09-01), Hase et al.
patent: 5998925 (1999-12-01), Shimizu et al.
patent: 6139774 (2000-10-01), Yamada et al.
patent: 2002/0043926 (2002-04-01), Takahashi et al.
patent: 2003/0052595 (2003-03-01), Ellens et al.
patent: 2003/0094893 (2003-05-01), Ellens et al.
patent: 2006/0033081 (2006-02-01), Hintzen et al.
patent: WO 00/33390 (2000-06-01), None
patent: WO 0033390 (2000-07-01), None
patent: WO-0124229 (2001-04-01), None
de Graaf et al. “Long wavelength Eu2+ emission in Eu-doped Y-Si-Al-O-N glasses”. Journal of the European Ceramic Society. vol. 23, Issue 7, Jun. 2003, pp. 1093-1097. Received Aug. 30, 2001; revised Jun. 25, 2002; accepted Jul. 6, 2002. ; Available online Sep. 18, 2002.
Hoeppe Henning
Juestel Thomas
Mayr Walter
Schmidt Peter
Schnick Wolfgang
Group Karl E
Koninklijke Philips Electronics , N.V.
Wiese Noah S
LandOfFree
Illumination system comprising a radiation source and a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Illumination system comprising a radiation source and a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illumination system comprising a radiation source and a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4147222