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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.:

US 11178735 B1

PDFFull Text
Date of Patent:
Nov. 16, 2021

Filed:

May. 02, 2016

Led light strip and method for manufacturing the same

Applicant:

Signify Holding B.v., Eindhoven, NL;

Inventors:

Joris Hubertus Antonius Hagelaar, Nuenen, NL;

Aart Jan Vroegop, Zaltbommel, NL;

Assignee:

SIGNIFY HOLDING B.V., Eindhoven, NL;

Attorney:
Primary Examiner:

Alexander K Garlen

Assistant Examiner:

Colin J Cattanach

Int. Cl.
CPC ...
H05B 45/00 (2020.01); H05K 1/02 (2006.01); H05B 45/40 (2020.01); F21S 4/22 (2016.01); F21V 23/00 (2015.01); H05K 1/03 (2006.01); H05K 1/18 (2006.01); H05K 3/12 (2006.01); H05K 3/30 (2006.01); F21Y 113/13 (2016.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
H05B 45/00 (2020.01); F21S 4/22 (2016.01); F21V 23/001 (2013.01); F21V 23/005 (2013.01); H05B 45/40 (2020.01); H05K 1/025 (2013.01); H05K 1/0393 (2013.01); H05K 1/181 (2013.01); H05K 3/12 (2013.01); H05K 3/303 (2013.01); F21Y 2103/10 (2016.08); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08); H05K 1/189 (2013.01); H05K 2201/09727 (2013.01); H05K 2201/09736 (2013.01); H05K 2201/10106 (2013.01);
Abstract

The present invention provides a light emitting diode(s), LED, light strip arranged for providing improved color consistency over its length. The LED light strip comprises LED strings positioned along the length of the LED light strip and powered in parallel, for emitting, for example, red, green, blue and white light. The resistance of the supply and return traces, in combination with variations in the current drawn by or the forward voltage of the various LED and resistors used in the LED strings of different color, causes a voltage drop along these traces leading to inconsistent color rendering. By adjusting the resistivity of the traces, such as through providing return paths having different resistances for LED strings of different color, the consistency of the color rendering can be improved.

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