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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 10330266 B1

PDFFull Text
Date of Patent:
Jun. 25, 2019

Filed:

Jan. 12, 2016

Led with thermo-responsive black-body line dimming

Applicant:

Signify Holding B.v., Eindhoven, NL;

Inventors:

Hugo Johan Cornelissen, Eindhoven, NL;

Jianghong Yu, Eindhoven, NL;

Giovanni Cennini, Eindhoven, NL;

Dirk Jan Broer, Eindhoven, NL;

Kamlesh Kumar, Eindhoven, NL;

Assignee:

SIGNIFY HOLDING B.V., Eindhoven, NL;

Attorney:

Akarsh P. Belagodu

Primary Examiner:

Joseph L Williams

Int. Cl.
CPC ...
H01L 33/50 (2010.01); C08G 77/388 (2006.01); H01L 33/56 (2010.01); H01L 33/54 (2010.01); F21K 9/65 (2016.01); C09K 11/06 (2006.01); C09K 11/08 (2006.01); C09K 19/40 (2006.01); F21K 9/64 (2016.01); C08G 77/38 (2006.01); F21Y 115/10 (2016.01); C08G 77/00 (2006.01); C09K 19/12 (2006.01); C09K 19/20 (2006.01); H01L 25/075 (2006.01);
U.S. Cl.
CPC ...
F21K 9/65 (2016.08); C08G 77/38 (2013.01); C08G 77/388 (2013.01); C09K 11/06 (2013.01); C09K 11/08 (2013.01); C09K 19/406 (2013.01); C09K 19/408 (2013.01); F21K 9/64 (2016.08); H01L 33/501 (2013.01); H01L 33/504 (2013.01); H01L 33/505 (2013.01); H01L 33/507 (2013.01); H01L 33/54 (2013.01); H01L 33/56 (2013.01); C08G 77/80 (2013.01); C08G 2250/00 (2013.01); C09K 2019/122 (2013.01); C09K 2019/2035 (2013.01); F21Y 2115/10 (2016.08); H01L 25/0753 (2013.01); H01L 2933/005 (2013.01); H01L 2933/0041 (2013.01);
Abstract

The invention provides a lighting device () comprising a light source () configured to generate light source light () and a light converter element (), wherein the light converter element () comprises a light transmissive matrix (), wherein the light transmissive matrix () comprises: (i) a first luminescent material () configured to convert at least part of one or more of (a) the light source light () and (b) optionally a second luminescent material light () from an optional second luminescent material () into a first luminescent material light (); and (ii) a thermo-responsive liquid crystalline compound (); wherein the light transmissive matrix () is configured in thermal contact with the light source (), and wherein the lighting device () is further configured to provide lighting device light () comprising said light source light (), said first luminescent material light () and optionally said second luminescent material light (), and wherein said light converter element is arranged for changing one or more of the color and color temperature of the lighting device light with the electrical power provided to the light source.

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