Electricity controller, device for lighting discharge tube,...

Details Electricity controller, device for lighting discharge tube,... Electricity controller, device for lighting discharge tube,...

2006-09-26

2009-10-20

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S159000, C315S360000

Reexamination Certificate

active

07605548

ABSTRACT:
An electricity controller is provided which comprises a first power control means for controlling output power from power generator4to a first level during a first period of start-up time for feeding, a second power control means for controlling output power from power generator4to a second level lower than first level during a second period after the first period, and a third power control means for controlling output power from power generator4to a third level greater than the second level and lower than the first level during a third period after the second period. A discharge tube2is heated during the first period for supplying a large amount of electric power to discharge tube2to elevate the tube temperature and thereby uniformly disperse mercury vapor in discharge tube2. Subsequently, while the device maintains the tube at a relatively high temperature during the second period for supplying a small amount of electric power to discharge tube, it can effectively reduce and restrict the release amount of infrared ray from discharge tube2in order to enable a remote controller8to control a display device immediately after the indication.

REFERENCES:
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patent: 2005/0147129 (2005-07-01), Maehara et al.
patent: 2006/0007209 (2006-01-01), Nakamura et al.
patent: 2006/0114215 (2006-06-01), Lee et al.
patent: 2006/0279230 (2006-12-01), Lee et al.

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