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:
Jul. 12, 2022
Filed:
Feb. 12, 2019
Signify Holding B.v., Eindhoven, NL;
Martinus Petrus Joseph Peeters, Weert, NL;
Rene Theodorus Wegh, Veldhoven, NL;
Remy Cyrille Broersma, Eindhoven, NL;
Rene Jan Hendriks, Eindhoven, NL;
Brankica Jovanovic, Eindhoven, NL;
SIGNIFY HOLDING B.V, Eindhoven, NL;
Abstract
The invention provides alighting device () comprising a solid state light source () configured to generate light source light () and a converter element () configured to convert at least part of the light source light () into converter element light (), wherein the converter element () comprises a polymeric host matrix element () hosting a particulate first luminescent material () of the type MAXdoped with tetravalent manganese, wherein M comprises an alkaline cation, wherein A comprises a tetravalent cation, and wherein X comprises a monovalent anion, at least comprising fluorine (F), wherein the particulate first luminescent material () is available in the polymeric host matrix element () with an average weight percentage x averaged over the polymeric host matrix element (), wherein the polymeric host matrix element () has a first outer face (), wherein an outer layer volume defined by at least part of the first outer face () and a first distance (d) from said first outer face () hosts the particulate first luminescent material () with a first local weight percentage y averaged over the outer layer volume with a ratio of the first local weight percentage y over the averaged weight percentage x of y/x≤0.1, and wherein the first distance (d) is at least 10 μm.