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. 28, 2021
Filed:
Apr. 02, 2019
Lumileds Holding B.v., Schiphol, NL;
Ludwig-maximilians-universitaet Muenchen, Munich, DE;
Christoph Martiny, Aachen, DE;
Peter Josef Schmidt, Aachen, DE;
Christian Maak, Aachen, DE;
Wolfgang Schnick, Aachen, DE;
Abstract
Embodiments of the invention are directed to a luminescent ceramic including a first phase and a second phase. The first phase is RAMSiAlNO. R is selected from the group comprising trivalent La, Gd, Tb, Y, Lu; A is selected from the group comprising bivalent Ca, Mg, Sr, Ba, and Eu; and M is selected from the group comprising trivalent Ce, Pr and Sm. The second phase may be or comprise, for example, REASiNOand RESiN, wherein RE is at least one rare-earth element selected from the group consisting of La, Gd, Lu, Y, Ce and Sc and wherein A is at least one metal element selected from the group consisting of Ba, Sr, Ca, Mg, Zn and Eu.