Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Reexamination Certificate
2011-03-08
2011-03-08
Koslow, C. Melissa (Department: 1734)
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
Reexamination Certificate
active
07901593
ABSTRACT:
The present invention is directed to rare-earth doped solid state solutions of alkaline earth fluorides having novel luminescence properties, and to a process for preparing them. The invention is useful as identifying markers on articles. Other uses include phosphors for plasma displays, optical frequency multipliers, optical amplifiers and the like.
REFERENCES:
patent: 3203899 (1965-08-01), Fisher
patent: 6861012 (2005-03-01), Gardner et al.
patent: 7517564 (2009-04-01), Crawford et al.
patent: 2002/0027412 (2002-03-01), Yoshida et al.
patent: 2003/0032192 (2003-02-01), Haubold
patent: 2005/0068395 (2005-03-01), Haubold et al.
patent: 2005/0143249 (2005-06-01), Ross et al.
patent: 2007/0108413 (2007-05-01), Chi et al.
patent: 2008/0025896 (2008-01-01), Chi et al.
patent: 0 147 252 (1985-07-01), None
patent: 1 728 763 (2006-12-01), None
patent: 1 884 553 (2008-02-01), None
patent: WO 03/052025 (2003-06-01), None
Fedorov et al, “crystallization of a Solid Solution with Fluorite Structure in the CaF2-SrF2-NdF3 System in the Vicinity of the saddle Point on the Liquidus Surface”, Doklady Akademii Nauk. 369(2), 1999, pp. 217-219.
Martin et al., Atomic Energy Levels—The Rare-Earth Elements, U.S. Department of Commerce, National Bureau of Standards, 1978, (Book Not Included).
Sarma et al., Ionic Conductivity of CaF2-SrF2 Mixed Crystals, Solid State Ionics, 1990, vol. 42:227-232.
Federov et al., Crystallization of a Solid Solution With Fluorite Structure in the CaF2-SrF2-NdF3 System in the Vicinity of the Saddle Point on the Liquidus Surface, Dolady Akademi Nauk., 1999, vol. 369:217-219.
K. Kawano et al., Photoluminescence of Eu2+ Ion Doped Into CA1-Sr f2 Mixed Crystlas, Japanese Journal of Applied Physics, 1990, vol. 29:319-321.
F. Wang et al., Synthesis and Luminescence Behavior of Eu3+ doped CaF2 Nanoparticles, Solid State Communications. 2005, vol. 133:775-779.
E. Faulques et al., Synthesis, Fabrication, and Photoluminescence of CaF2 Doped with Rare Earth Ions, Journal of Fluorescence, 1998, vol. 8:283-287.
Anonymous: Influence of Oxide Concentration on the Image Storage Efficiency of BaFBr Phosphor Materials, Research Disclosure 33641, 1992, vol. 336. Issue No. 41, Mason Publications.
Crawford Michael Karl
Mikeska Kurt Richard
E. I. Du Pont de Nemours and Company
Koslow C. Melissa
LandOfFree
Rare-earth doped fluorides and process for preparing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rare-earth doped fluorides and process for preparing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare-earth doped fluorides and process for preparing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2700741