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:
Jun. 12, 2018
Filed:
Jan. 26, 2015
Philips Lighting Holding B.v., Eindhoven, NL;
Marcellinus Petrus Carolus Michael Krijn, Eindhoven, NL;
Siebe Tjerk De Zwart, Eindhoven, NL;
Tim Dekker, Eindhoven, NL;
Alexander Jacobus Mariette Van Neer, Eindhoven, NL;
Jochen Renaat Van Gheluwe, Eindhoven, NL;
Hendrikus Hubertus Petrus Gommans, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
An LED light bulb has a light emitting bulb partwhich comprises a central corerunning from the top towards the bottom and which provides an open passageway at least at the top. The LEDs are mounted in thermal contact around the central core. This design provides an air flow to promote cooling of the LEDs. This in turn enables a reduced size and cost of the heat sink, or avoids the need for a heat sink altogether.