Filament electrode and fluorescent lamp

Details Filament electrode and fluorescent lamp Filament electrode and fluorescent lamp

2011-01-11

2011-01-11

Guharay, Karabi (Department: 2889)

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For filament

C313S356000, C313S491000, C313S341000

Reexamination Certificate

active

07868530

ABSTRACT:
The disclosed subject matter includes a filament electrode that can include a filament coil connected with a pair of lead wires with confidence. It is possible for a fluorescent lamp using the filament electrode to emit light with a wider range while located in a thin tube. The filament electrode can include a pair of connecting pipes, a pair of lead wires located parallel to each other, and a filament coil including two connecting parts. Each of the two connecting parts of the filament coil can attach to respective ends of the pair of lead wires via the pair of connecting pipes via pressure bonding so as not to contact the connecting parts of the filament coil with the ends of the pair of lead wires located in the pair of connecting pipes and so as to align the structures. Thus, the filament electrode can be used even in a thin glass or quartz tube and can provide an effective heat-shield operation.

REFERENCES:
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patent: 2007/0228913 (2007-10-01), Horikoshi et al.
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patent: 2005183267 (2005-07-01), None
patent: 2005235749 (2005-09-01), None

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