Multi-discharge tube lighting apparatus

Details Multi-discharge tube lighting apparatus Multi-discharge tube lighting apparatus

2008-01-30

2010-11-02

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

C315S282000, C315S312000

Reexamination Certificate

active

07825608

ABSTRACT:
A multi-discharge tube lighting apparatus connectable to a power source comprising a first output terminal and a second output terminal respectively outputting voltages of opposite phases, the lighting apparatus comprises first to n-th discharge tube units where n represents an integer of two or more, each of which has a first end connected to the first output terminal and a second end connected to the second output terminal and comprises at least one discharge tube, a first winding, and a second winding, which are connected in series between a first end and a second end. The first winding of the first discharge tube unit is electromagnetically coupled via a transformer to the second winding of the n-th discharge tube unit. The first windings of the second and subsequent discharge tube units are electromagnetically coupled via transformers to the second windings of the previous discharge tube units, respectively.

REFERENCES:
patent: 7633240 (2009-12-01), Kwon
patent: 2005/0099143 (2005-05-01), Kohno
patent: 2006/0244395 (2006-11-01), Taipale et al.
patent: 2007/0108918 (2007-05-01), Sengoku et al.
patent: 2008/0067944 (2008-03-01), Wang et al.
patent: 2008/0088403 (2008-04-01), Suzuki et al.
patent: 09-161980 (1997-06-01), None
patent: 2004-335443 (2004-11-01), None
patent: 2006-012660 (2006-01-01), None
Office Action issued in Korean Patent Application No. 10-20052008-0009310, dated Mar. 4, 2009 (4 pages).
English Translation of an Office Action issued in Korean Patent Application No. 10-20052008-0009310, dated Mar. 4, 2009 (5 pages).

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