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:
Aug. 03, 2021
Filed:
Mar. 18, 2019
Signify Holding B.v., Eindhoven, NL;
Dirk Kornelis Gerhardus De Boer, Den Bosch, NL;
Dominique Maria Bruls, Heeze, NL;
Gerardus Everardus Marie Hannen, Weert, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
A lighting system includes a plurality of light sources; an elongated luminescent body defining a length (L) and a height or diameter (H), and having a light input face, a light output face, and at least one side face bridging the height or diameter (H); a garnet type ABOluminescent material including trivalent cerium, provided in the elongated luminescent body with a height dependent concentration range defined by a minimum concentration y=0.036*xand a maximum concentration y=0.17*x, where y is the trivalent cerium concentration in % relative to the A element, and x is the height (H) in mm; at least one heat transfer elements in thermal contact with the elongated luminescent body; and a reflector provided opposite the light sources on the elongated luminescent body. The garnet type ABOluminescent material converts at least part of light from the light sources into converted light.