Electrodeless discharge lamp utilizing induced electric field ge

Details Electrodeless discharge lamp utilizing induced electric field ge Electrodeless discharge lamp utilizing induced electric field ge

1996-10-04

1998-05-05

Pascal, Robert

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315 39, 315344, H05B 3702

Patent

active

057479453

ABSTRACT:
An electrodeless discharge lamp includes a single type auxiliary electrode for preliminary discharging, disposed on or adjacent to outer peripheral wall of lamp tube at a position for being electrostatically coupled to interior space of the tube, and supplied with a power from a second high frequency power source other than a first high frequency power source supplying a high frequency power to a main induction coil on the tube, whereby the lamp is made to attain an excellent startability without requiring any large size high frequency power source.

REFERENCES:
patent: 2223399 (1940-12-01), Bethenod
patent: 4902937 (1990-02-01), Witting
patent: 5367226 (1994-11-01), Ukegawa et al.

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