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:
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 includes: a first LED array that is annularly arranged on a mounting board and includes first LED elements connected in series; a second LED array that is arranged within an inner circumference of the first LED array on the mounting board, 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 arranged in series on a path through which current flows to the second LED array; and a constant power output circuit, wherein the number of the first LED elements is greater than the number of the second LED elements, and a total forward voltage of the first LED array is greater than a total forward voltage of the second LED array.