Low-pressure mercury vapor discharge lamp

Details Low-pressure mercury vapor discharge lamp Low-pressure mercury vapor discharge lamp

1986-09-08

1987-09-29

Boudreau, Leo H.

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

313600, 313493, 313 25, 315 58, 315 60, 315 61, 315240, H01J 1744, H01J 6154

Patent

active

046971211

ABSTRACT:
A low-pressure mercury vapor discharge lamp in which a rare gas and mercury are provided in an outer bulb, which in turn contains therein a plurality of bent inner tubes, each having an opening at an end and an electrode at the other end thereof. A starting probe is provided between the openings in the outer bulb. An operating circuit or starter is connected to the electrodes. Further, a starting probe circuit is connected to the starting probe to apply a high voltage to the starting probe at the time of ignition.

REFERENCES:
patent: 3629647 (1971-12-01), Lake
patent: 3657600 (1972-04-01), Wiegand, Jr.
patent: 3775641 (1973-11-01), Goldberg
patent: 3857063 (1974-12-01), Major et al.
patent: 4199708 (1980-04-01), Lauwerijessen et al.
patent: 4335331 (1982-06-01), Watanabe et al.
patent: 4433271 (1984-02-01), Inoue et al.
patent: 4499406 (1985-02-01), Saburo
patent: 4500812 (1985-02-01), Roche
patent: 4507588 (1985-03-01), Asmussen et al.
patent: 4524301 (1985-06-01), Cohen et al.
patent: 4611148 (1986-09-01), Kato et al.

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