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:
Sep. 08, 2020
Filed:
Sep. 12, 2018
Applicant:
Lumileds Holding B.v., Schiphol, NL;
Inventors:
Assignee:
Lumileds Holding B.V., , NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/22 (2006.01); H01L 31/0256 (2006.01); H01L 31/0296 (2006.01); H01L 33/50 (2010.01); C09K 11/77 (2006.01);
U.S. Cl.
CPC ...
H01L 33/504 (2013.01); C09K 11/7708 (2013.01); C09K 11/7774 (2013.01);
Abstract
Embodiments of the invention include an infrared-emitting phosphor comprising (La,Gd)GaAlSiO:Cr, where 0≤x≤1 and 0.02≤y≤0.08. In some embodiments, the infrared-emitting phosphor is a calcium gallogermanate material. In some embodiments, the infrared-emitting phosphor is used with a second infrared-emitting phosphor. The second infrared-emitting phosphor is one or more chromium doped garnets of composition GdScLuGaO:Cr, where 0.02≤x1≤0.25, 0.05≤x2≤0.3 and 0.04≤y≤0.12.