Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – With antenna
Reexamination Certificate
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.
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Koninklijke Philips Electronics , N.V.
Tran Thuy Vinh
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