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:
Feb. 26, 2008

Filed:

May. 04, 2005
Applicants:

Seung Man Gu, Kumi-shi, KR;

Kang Ju Lee, Gyeongsan-Shi, KR;

Inventors:

Seung Man Gu, Kumi-shi, KR;

Kang Ju Lee, Gyeongsan-Shi, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 11/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A flat light-emitting lamp includes a first common discharge unit for producing a first electrical discharge according to a first AC waveform having a first phase, a second common discharge unit for producing a second electrical discharge according to a second AC waveform having a second phase different from the first phase, and a plurality of discharge tubes each having first ends connected to the first common discharge unit and second ends connected to the second common discharge unit. The discharge tubes emit light according to the electrical discharges of the first and second common discharge units.


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