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. 28, 2016
Filed:
Aug. 13, 2014
Panasonic Corporation, Osaka, JP;
Akira Takahashi, Osaka, JP;
Kazuhiro Takeda, Osaka, JP;
Abstract
An LED lamp according to one aspect of the present invention including: a first LED array including first LED elements connected in series; a second LED array that includes second LED elements connected in series and emits light having an emission color different from an emission color of the first LED array; a FET switch that is provided between the two LED arrays and switches between a first current path to the first LED array and a second current path to the second LED array; a constant power output circuit that outputs the same power value to a current path through which current flows before the switching and a current path through which current flows after the switching, wherein a total forward voltage of the first LED array is different from a total forward voltage of the second LED array.