Fluorescent lamp operating apparatus

Details Fluorescent lamp operating apparatus Fluorescent lamp operating apparatus

1998-10-01

2000-08-22

Wong, Don

Electric lamp and discharge devices: systems

Discharge device load

Discharge control discharge device load

315176, 315248, 315291, H01J 1104

Patent

active

061077577

ABSTRACT:
A fluorescent lamp operating apparatus is used for operating a fluorescent lamp, which includes a glass tube coated with a phosphor and has at least mercury sealed therein, by generating an electric field in a direction from an inner surface of the glass tube toward a center of the glass tube. The operating apparatus, for example, includes: a ballast circuit connected to the fluorescent lamp for starting the fluorescent lamp; a potential application member disposed so as to at least partially surround discharge plasma generated in the fluorescent lamp; and a potential application circuit for applying a potential to the potential application member. In such a case, the potential application circuit applies a potential to the potential application member which is higher than the potential of the discharge plasma.

REFERENCES:
patent: 5239238 (1993-08-01), Bergervoet et al.
patent: 5747946 (1998-05-01), Tyler

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