Low-pressure mercury vapor discharge lamp having determined...

Details Low-pressure mercury vapor discharge lamp having determined... Low-pressure mercury vapor discharge lamp having determined...

2008-04-15

2008-04-15

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

With antenna

C315S051000, C313S631000, C313S642000

Reexamination Certificate

active

07358677

ABSTRACT:
Low-pressure mercury vapor discharge lamp has a discharge vessel (10) enclosing, in a gastight manner, a discharge space (13) provided with a filling of mercury and an inert gas in a gastight manner. The discharge vessel comprising electrodes (20a; 20b) arranged in the discharge space for maintaining a discharge in the discharge space. According to the invention, the probability of failure of the low-pressure mercury vapor discharge lamp being substantially determined by one of the electrodes. As upon igniting the low-pressure mercury vapor discharge lamp the ignition-related events influence the electrodes, preferably, the ignition-related events substantially are prevented affecting the one electrode.

REFERENCES:
patent: 2530394 (1950-11-01), Lowry et al.
patent: 3215892 (1965-11-01), Waymouth
patent: 3740609 (1973-06-01), Moerkens
patent: 5449971 (1995-09-01), Scott et al.
patent: 6809477 (2004-10-01), Soules et al.
patent: 1172723 (1969-12-01), None
patent: 04061740 (1992-02-01), None
patent: 05089982 (1993-04-01), None
patent: 09147807 (1997-06-01), None
patent: 2000285863 (2000-10-01), None

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