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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 9877370 B1

PDFFull Text
Date of Patent:
Jan. 23, 2018

Filed:

Jun. 12, 2014

Lighting device comprising at least two sets of leds

Applicant:

Koninklijke Philips N.v., Eindhoven, NL;

Inventors:

Martinus Petrus Joseph Peeters, Weert, NL;

René Theodorus Wegh, Veldhoven, NL;

Raimond Louis Dumoulin, Maarheeze, NL;

Marcellus Jacobus Johannes Van Der Lubbe, Best, NL;

Assignee:

PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;

Attorney:
Primary Examiner:

Y M Lee

Int. Cl.
CPC ...
F21V 9/16 (2006.01); H05B 33/08 (2006.01); H01L 25/075 (2006.01); C09K 11/08 (2006.01); C09K 11/77 (2006.01); F21K 9/64 (2016.01); H01L 33/50 (2010.01); F21S 8/06 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
H05B 33/086 (2013.01); C09K 11/0883 (2013.01); C09K 11/7734 (2013.01); C09K 11/7774 (2013.01); F21K 9/64 (2016.08); F21V 9/16 (2013.01); H01L 25/0753 (2013.01); F21S 8/06 (2013.01); F21Y 2115/10 (2016.08); H01L 33/504 (2013.01); H01L 2224/48091 (2013.01);
Abstract

The invention provides a lighting device () comprising a first set of light emitting diodes () arranged to emit light () in a first wavelength range of 300 nm-490 nm, a second set of light emitting diodes () arranged to emit light () in a second wavelength range of 300 nm-490 nm, a first luminescent element () radiationally coupled to the first and second set of light emitting diodes and arranged to convert at least a part of the light of the first wavelength range and at least a part of the light of the second wavelength range into first luminescent element light, a second luminescent element () radiationally coupled to at least a subset of the second set of light emitting diodes and arranged to convert at least a part of the light () of the second wavelength range into second luminescent element light, wherein, during operation, the brightness level of the light () emitted by the first set of light emitting diodes () and the brightness level of the light () emitted by the second set of light emitting diodes (), respectively, is controllable independently of each other and wherein the lighting device is arranged to generate white lighting device light ().

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