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:
Mar. 09, 2021
Filed:
Jul. 19, 2018
Applicant:
Signify Holding B.v., Eindhoven, NL;
Inventors:
Assignee:
SIGNIFY HOLDING B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 29/87 (2015.01); F21K 9/23 (2016.01);
U.S. Cl.
CPC ...
F21V 29/87 (2015.01); F21K 9/23 (2016.08);
Abstract
A lighting device having a 3D-printed heat sink. The 3D-printed heat sink includes a stack of a core layer and at least one further layer stacked along a stack axis normal to the core layer. The core layer and the at least one further layer having a same polymer material each with a thermally conductive filler, wherein a concentration of the thermally conductive filler in the polymer material decreases, starting from the core layer, consecutively with each of the at least one further layer for improving resistance to mechanical failure and thermal conduction of said 3D-printed heat sink.