Persistent phosphor

Details Persistent phosphor Persistent phosphor

2011-06-14

2011-06-14

Koslow, C. Melissa (Department: 1734)

Compositions

Inorganic luminescent compositions

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

C252S301360, C428S690000

Reexamination Certificate

active

07959827

ABSTRACT:
A long-lived phosphor composition is provided, along with methods for making and using the composition. More specifically, in one embodiment, the phosphor comprises a material having a formula of Ax-y-zAl2-m-n-o-pO4:Euy, REz, Bm, Znn, Coo, Scp. In this formula, A may be Ba, Sr, Ca, or a combination of these metals, x is between about 0.75 and 1.3, y is between about 0.0005 and 0.1, z is between about 0.0005 and 0.1, m is between about 0.0005 and 0.30, n is between about 0.0005 and 0.10, o is between about 0 and 0.01 and p is between about 0 and 0.05. RE is Dy, Nd, or a combination thereof. In another embodiment, methods are provided for making persistent phosphors comprising the formulations above. Other embodiments provide applications for such a phosphor, comprising uses in toys, emergency equipment, clothing, and instrument panels, among others.

REFERENCES:
patent: 4631144 (1986-12-01), Beers et al.
patent: 4638214 (1987-01-01), Beers et al.
patent: 5230831 (1993-07-01), Srivastava
patent: 5273681 (1993-12-01), Srivastava
patent: 5273732 (1993-12-01), Srivastava
patent: 5312612 (1994-05-01), Srivastava et al.
patent: 5376303 (1994-12-01), Royce et al.
patent: 5770111 (1998-06-01), Moriyama et al.
patent: 5874491 (1999-02-01), Anders
patent: 5961072 (1999-10-01), Bodle
patent: 6005024 (1999-12-01), Anders et al.
patent: 6010644 (2000-01-01), Fu et al.
patent: 6074739 (2000-06-01), Katagiri
patent: 6123871 (2000-09-01), Carroll
patent: 6190577 (2001-02-01), Hase et al.
patent: 6210605 (2001-04-01), Srivastava et al.
patent: 6246744 (2001-06-01), Duclos et al.
patent: 6252254 (2001-06-01), Soules et al.
patent: 6255670 (2001-07-01), Srivastava et al.
patent: 6276634 (2001-08-01), Bodle
patent: 6278135 (2001-08-01), Srivastava et al.
patent: 6280655 (2001-08-01), Xu et al.
patent: 6294800 (2001-09-01), Duggal et al.
patent: 6302959 (2001-10-01), Srivastava et al.
patent: 6357889 (2002-03-01), Duggal et al.
patent: 6358441 (2002-03-01), Duclos et al.
patent: 6366033 (2002-04-01), Greci et al.
patent: 6375864 (2002-04-01), Phillips et al.
patent: 6402987 (2002-06-01), Srivastava et al.
patent: 6429583 (2002-08-01), Levinson et al.
patent: 6436313 (2002-08-01), Srivastava et al.
patent: 6466135 (2002-10-01), Srivastava et al.
patent: 6469322 (2002-10-01), Srivastava et al.
patent: 6501100 (2002-12-01), Srivastava et al.
patent: 6515314 (2003-02-01), Duggal et al.
patent: 6522065 (2003-02-01), Srivastava et al.
patent: 6538371 (2003-03-01), Duggal et al.
patent: 6555958 (2003-04-01), Srivastava et al.
patent: 6580097 (2003-06-01), Soules et al.
patent: 6596195 (2003-07-01), Srivastava et al.
patent: 6613137 (2003-09-01), Egger et al.
patent: 6616862 (2003-09-01), Srivastava et al.
patent: 6621211 (2003-09-01), Srivastava et al.
patent: 6630077 (2003-10-01), Shiang et al.
patent: 6653765 (2003-11-01), Levinson et al.
patent: 6685852 (2004-02-01), Setlur et al.
patent: 6692667 (2004-02-01), Kyeng-Jung
patent: 6696126 (2004-02-01), Fischer et al.
patent: 6700322 (2004-03-01), Duggal et al.
patent: 6730918 (2004-05-01), Srivastava et al.
patent: 6761837 (2004-07-01), Comanzo et al.
patent: 6777724 (2004-08-01), Duggal et al.
patent: 6809471 (2004-10-01), Setlur et al.
patent: 6809781 (2004-10-01), Srivastava et al.
patent: 6844671 (2005-01-01), Srivastava et al.
patent: 6847162 (2005-01-01), Duggal et al.
patent: 6853131 (2005-02-01), Srivastava et al.
patent: 6867536 (2005-03-01), Srivastava et al.
patent: 6879091 (2005-04-01), Venugopal et al.
patent: 6911159 (2005-06-01), Rogers et al.
patent: 6936857 (2005-08-01), Doxsee et al.
patent: 6939481 (2005-09-01), Srivastava et al.
patent: 6965193 (2005-11-01), Srivastava et al.
patent: 6969475 (2005-11-01), Hyland, Jr. et al.
patent: 6982046 (2006-01-01), Srivastava et al.
patent: 7015510 (2006-03-01), Srivastava et al.
patent: 7019452 (2006-03-01), Srivastava et al.
patent: 7022263 (2006-04-01), Comanzo et al.
patent: 7024781 (2006-04-01), Cowie
patent: 7026755 (2006-04-01), Setlur et al.
patent: 7056451 (2006-06-01), Manivannan et al.
patent: 7056849 (2006-06-01), Wann et al.
patent: 7077978 (2006-07-01), Setlur et al.
patent: 7077980 (2006-07-01), Ramachandran et al.
patent: 7094362 (2006-08-01), Setlur et al.
patent: 7119488 (2006-10-01), Soules et al.
patent: 7122128 (2006-10-01), Comanzo et al.
patent: 7128849 (2006-10-01), Setlur et al.
patent: 7179402 (2007-02-01), Srivastava et al.
patent: 7252787 (2007-08-01), Hancu et al.
patent: 7267785 (2007-09-01), Srivastava et al.
patent: 7311859 (2007-12-01), Loureiro et al.
patent: 7658866 (2010-02-01), Murazaki et al.
patent: 2005/0212397 (2005-09-01), Murazaki et al.
patent: 2006/0222757 (2006-10-01), Loureiro et al.
patent: 2007/0131866 (2007-06-01), Srivastava et al.
patent: 0877071 (1998-11-01), None
patent: 1661964 (2006-05-01), None
patent: 9950372 (1999-10-01), None
U.S. Appl. No. 11/654,191, filed Jan. 2007, Comanzo et al.
U.S. Appl. No. 11/728,400, filed Mar. 2007, Loureiro et al.
U.S. Appl. No. 11/728,399, filed Mar. 2007, Clothier et al.
U.S. Appl. No. 11/728,445, filed Mar. 2007, Clothier et al.
PCT International Search Report, PCT/US2008/085677, Dec. 5, 2008.
Y Sun et al., “Synthesis of SrAI2O4:Eu<2+>,Dy<3+> Phosphors By The Coupling Route Of Microemulsion With Coprecipitation Method”, Rare Metals—Xiyou Jinshu, Press of Metallurgical Industry, Beijing, CN, vol. 25, No. 6, Dec. 1, 2006, pp. 615-619.
Lu et al., “Nanosized Strontium Aluminate Phosphors Prepared Via A Reverse Microemulsion Route”, Materials Science and Engineering B, Elsevier Sequoia, Lausanne, CH, vol. 140, No. 3, Jun. 15, 2007, pp. 218-221.
T. Aitasalo, “Persistent Luminescence Phenomena in Materials Doped With Rare Earth Ions”, Journal of Solid State Chemistry, vol. 17, 2003, pp. 114-122.

Affiliated with

Also associated with

Rating

Persistent phosphor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Persistent phosphor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Persistent phosphor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2659458