Electrodeless discharge lamp unit

Details Electrodeless discharge lamp unit Electrodeless discharge lamp unit

1999-03-30

2000-08-08

Wong, Don

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315344, 315 39, H05B 4116, H05B 4124

Patent

active

061006505

ABSTRACT:
An electrodeless discharge lamp unit includes an electrodeless discharge lamp that has a luminescent tube with an excitation coil wound round and an auxiliary tube, a high-tension applying circuit to apply pulse voltage of a peak value that is able to dielectric break the discharge space in the luminescent tube and a current injection circuit to apply voltage, that is able to maintain non-ring shaped discharge formed in the luminescent tube by applying pulse voltage by a high-tension applying circuit even when the application of pulse voltage is suspended, to the end of the auxiliary tube.

REFERENCES:
patent: 5047692 (1991-09-01), Borowiec et al.
patent: 5059868 (1991-10-01), El-Hamamsy et al.
patent: 5095249 (1992-03-01), Roberts et al.
patent: 5107185 (1992-04-01), El-Hamamsy et al.
patent: 5140227 (1992-08-01), Dakin et al.

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