Biasing system for reducing ion loss in lamps

Details Biasing system for reducing ion loss in lamps Biasing system for reducing ion loss in lamps

1991-07-31

1993-12-21

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Discharge device load

315335, 313634, H01J 1104

Patent

active

052724204

ABSTRACT:
A high intensity discharge lamp system includes an AC supply for a chamber within which a plasma conductor is created to generate light. In order to confine charged particles within the chamber and to inhibit migration and loss thereof, a DC circuit taps power from the AC supply and produces a DC potential which is applied to relatively large-surface components in the vicinity of the plasma chamber. Properly polarized, the large-surface components, such as a reflector and a conductive housing, refractor or door, produces electric fields which inhibit migration of the charged particles. The result is improved color and light output as well as increased lamp life.

REFERENCES:
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patent: 4281274 (1981-07-01), Bechard et al.
patent: 4488091 (1984-12-01), Muzeroll et al.
patent: 4491766 (1985-01-01), Larson
patent: 4625141 (1986-11-01), Keeffe et al.
patent: 4678960 (1987-07-01), Reiling
patent: 4899090 (1990-02-01), Yoshiike

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