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. 21, 2019
Filed:
Jul. 07, 2015
Applicant:
Silicon Works Co., Ltd., Daejeon-si, KR;
Inventors:
Gyeong Sik Mun, Daejeon-si, KR;
Sang Young Lee, Jeonju-si, KR;
Ki Chul An, Daegu-si, KR;
Yong Geun Kim, Suwon-si, KR;
Assignee:
SILICON WORKS CO., LTD., Daejeon-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0824 (2013.01); H05B 33/083 (2013.01); H05B 33/0842 (2013.01);
Abstract
Provided is a lighting apparatus. The lighting apparatus may include two or more lighting units each including a plurality of LED groups which sequentially emit light in response to changes of a rectified voltage. The two or more lighting units may include one or more LED groups having the same light emitting sequence but having different light emitting points of time. Thus, current harmonic can be reduced, and power efficiency can be improved.