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:
Apr. 14, 2020
Filed:
Jun. 06, 2016
Signify Holding B.v., Eindhoven, NL;
Martinus Petrus Joseph Peeters, Weert, NL;
Shu Xu, Shanghai, CN;
Jie Fu, Shanghai, CN;
Malgorzata Perz, Eindhoven, NL;
Rémy Cyrille Broersma, Eindhoven, NL;
Dragan Sekulovski, Eindhoven, NL;
René Theodorus Wegh, Veldhoven, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
The invention provides a light emitting diode (LED) lighting system () comprising a string (ST) including a number of light emitting diode (LED) elements () functionally connected with an AC voltage source () configured to apply an input voltage (Vi) to said string (ST), wherein the string (ST) comprises a plurality of segments (S, S, S, . . . ), with each segment (S, S, S, . . . ) comprising at least one or more of said light emitting diode (LED) elements (), wherein the light emitting diode (LED) lighting system () is configured to connect a first segment (S) in the string (ST) between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a first threshold, and to connect the first segment (S) and a second segment (S) in the string between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a second threshold bigger than said first threshold, wherein each LED element () comprises a light emitting diode () configured to generate blue LED radiation (), wherein said first segment (S) comprises a second photoluminescent material comprising LED element (), wherein the second photoluminescent material comprising LED element () comprises (a) light emitting diode () and (b) a second photoluminescent material () configured to convert at least part of said LED radiation () into second conversion radiation () in the visible, and wherein said second photoluminescent material () only has a decay time of the second conversion radiation () smaller than 1 ms, and said second segment (S) comprise first photoluminescent.