D.C. lamp discharge gas pumping control

Details D.C. lamp discharge gas pumping control D.C. lamp discharge gas pumping control

1986-09-02

1987-10-06

DeMeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313565, H01J 6142, H01J 6128

Patent

active

046985492

ABSTRACT:
An amalgam of mercury is placed at the anode end of a low-pressure mercury discharge lamp for D.C. operation to counteract mercury vapor depletion at the anode end of the lamp. The amalgam attracts mercury vapor to the anode end of the lamp when the lamp is turned off to maintain uniform mercury vapor distribution in the lamp.

REFERENCES:
patent: 3007071 (1961-10-01), Lompe et al.
patent: 3117248 (1964-01-01), Lake
patent: 3548241 (1970-12-01), Rasch et al.
patent: 3617792 (1971-11-01), Lake
patent: 3629641 (1971-12-01), Hofmann et al.
patent: 4105910 (1978-08-01), Evans
patent: 4288715 (1981-09-01), van Overveld et al.

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