High intensity discharge lamp with arc spreading means

Details High intensity discharge lamp with arc spreading means High intensity discharge lamp with arc spreading means

1980-02-04

1984-04-17

Demeo, Palmer C.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313161, 313607, 313634, H01J 6134, H01J 6104

Patent

active

044437340

ABSTRACT:
A high pressure discharge lamp having cylindrical or elliptical envelope containing a rare gas atmosphere as the starter gas and mercury and other volatile metals. The luminous output of this high intensity discharge lamp is increased by the presence of a magnetic field which spreads the arc discharge throughout the lamp envelope.

REFERENCES:
patent: 1286882 (1918-12-01), Hewitt
patent: 1935940 (1933-11-01), Case
patent: 2015885 (1935-10-01), Dallenbach
patent: 2149224 (1939-02-01), McCauley
patent: 2317265 (1943-04-01), Foerste et al.
patent: 3885181 (1975-05-01), Nelson et al.
patent: 4069416 (1978-01-01), Suga
patent: 4100446 (1978-07-01), Harada et al.

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