Electric lamp and discharge devices: systems – Plural power supplies – Plural diverse pulsating or a.c. supplies
Patent
1996-06-26
1998-03-03
Pascal, Robert
Electric lamp and discharge devices: systems
Plural power supplies
Plural diverse pulsating or a.c. supplies
315248, 315344, 315 86, 313623, 313283, H05B 4100
Patent
active
057239517
ABSTRACT:
An apparatus and method for operating an arc discharge lamp which can be hot restarted is described. The method involves providing low microwave power after the lamp ballast is disconnected from the lamp. The microwave power is modulated such that conductivity is maintained within the lamp as the lamp cools. Restarting the lamp is accomplished by reconnecting the ballast at any time. In one embodiment, the apparatus of the invention includes an arc discharge lamp and ballast coupled together with a switch to turn the lamp on and off. A microwave power supply is connected in parallel with the ballast and is coupled to the lamp when the ballast is shut off. The invention allows for hot restart of the arc lamp without requiring a high voltage pulse.
REFERENCES:
patent: 4356433 (1982-10-01), Linden
patent: 4763044 (1988-08-01), Nuckolls et al.
patent: 4798997 (1989-01-01), Egami et al.
patent: 4888528 (1989-12-01), Byszewski et al.
patent: 4890041 (1989-12-01), Nuckolls et al.
patent: 5287039 (1994-02-01), Gregor et al.
patent: 5373217 (1994-12-01), Gregor
Budinger A. Bowman
Byszewski Wojciech W.
Li Yan Ming
Bessone Carlo S.
Kinkead Arnold
Osram Sylvania Inc.
Pascal Robert
LandOfFree
Method of hot restarting a high intensity discharge lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of hot restarting a high intensity discharge lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of hot restarting a high intensity discharge lamp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2251716