The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Sep. 20, 2010
Alok Mani Srivastava, Niskayuna, NY (US);
Holly Ann Comanzo, Niskayuna, NY (US);
William Winder Beers, Chesterland, OH (US);
László Balázs, Godollo, HU;
István Károly Deme, Budapset, HU;
Gopi Chandran Ramachandran, Bangalore, IN;
Katalin Toth, Budapest, HU;
Nagaveni Karkada, Bangalore, IN;
Swarnagowri Addepalli, Bangalore, IN;
Alok Mani Srivastava, Niskayuna, NY (US);
Holly Ann Comanzo, Niskayuna, NY (US);
William Winder Beers, Chesterland, OH (US);
László Balázs, Godollo, HU;
István Károly Deme, Budapset, HU;
Gopi Chandran Ramachandran, Bangalore, IN;
Katalin Toth, Budapest, HU;
Nagaveni Karkada, Bangalore, IN;
Swarnagowri Addepalli, Bangalore, IN;
General Electric Company, Niskayuna, NY (US);
Abstract
A luminescent material includes an aluminate phosphor of formula IAMgAlO:Eu, R, where≦0.4, 0≦≦1 and 0≦≦0.2. A is selected from Ca, Ba, and Sr and combinations thereof. The aluminate phosphor is doped with a rare earth ion (R), which exists in stable multi-valence states in the luminescent material. Ris selected from the group consisting of Sm, Yb, Tm, Ce, Tb, Prand combinations thereof. Phosphors of formula I may be blended with other blue, yellow, orange, green, and red phosphors to yield white light phosphor blends. A lighting apparatus including such a luminescent material is also presented. The light apparatus includes a light source in addition to the luminescent material.