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:
May. 09, 2017
Filed:
Sep. 07, 2016
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Miyo Kangyo, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); H05B 33/0827 (2013.01); H05B 33/0845 (2013.01);
Abstract
A lighting device includes a switching circuit configured to supply a supply voltage to each of a plurality of light sources by time division. The lighting device includes a variable control circuit configured to supply a continuous DC supply voltage to each of the light sources. The lighting device includes a controller. The controller includes a first control function of controlling the switching circuit. The controller includes a second control function of controlling the variable control circuit. The controller is configured to select either the first control function or the second control function for each of the light sources.