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.

Date of Patent:
Mar. 09, 2010

Filed:

Aug. 09, 2007
Applicants:

Wen-xiang Zhang, Shenzhen, CN;

Guang Yu, Shenzhen, CN;

LI He, Shenzhen, CN;

Inventors:

Wen-Xiang Zhang, Shenzhen, CN;

Guang Yu, Shenzhen, CN;

Li He, Shenzhen, CN;

Assignees:

Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Shenzhen, Guangdong Province, CN;

Foxconn Technology Co., Ltd., Tu-Cheng, Taipei Hsien, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An LED lamp includes a heat sink () and a plurality of LED modules () mounted on a periphery of the heat sink. The heat sink defines a through hole () from a lateral side to an opposite lateral side thereof to define a cylindrical inner face. A plurality of fins () are attached to the heat sink in a manner such that the fins have spaced external portions () extending outwardly from the periphery of the heat sink, and opposite internal portions () extending inwardly from the inner face of the heat sink. The internal portions connect with each other to form a joint () in the through hole, thus increasing a heat dissipating area of the heat sink and reinforcing the heat sink.


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