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:
Aug. 18, 2015
Filed:
Feb. 10, 2014
Panasonic Corporation, Osaka, JP;
Junichi Hasegawa, Osaka, JP;
Hiroshi Kido, Osaka, JP;
Akinori Hiramatu, Nara, JP;
Takeshi Kamoi, Kyoto, JP;
Shigeru Ido, Osaka, JP;
Nobutoshi Matsuzaki, Osaka, JP;
Daisuke Yamahara, Osaka, JP;
Abstract
The lighting device according to the present invention includes: a power source configured to supply power to a light source having a plurality of regions; a plurality of cooling devices arranged corresponding to the plurality of regions to cool the plurality of regions, respectively; and a cooling control circuit configured to control the plurality of cooling devices. The cooling control circuit includes: a plurality of output circuits configured to supply drive voltages to the plurality of cooling devices by use of power from the power source to drive the plurality of cooling devices, respectively; a plurality of temperature measurement circuits configured to respectively measure temperatures of the plurality of regions; and an output control circuit configured to regulate the drive voltages respectively supplied from the plurality of output circuits based on the temperatures respectively measured by the plurality of temperature measurement circuits.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile