Electrode for high intensity discharge lamps

Details Electrode for high intensity discharge lamps Electrode for high intensity discharge lamps

1983-12-05

1989-11-14

Golian, Joseph

Electric lamp and discharge devices

With gas or vapor

Having particular electrode structure

313633, 313346R, 313311, H01J 6106

Patent

active

048810096

ABSTRACT:
Electrodes for lamps comprising elongated structures comprised of layers containing varying amounts of metal and refractory oxide. In a preferred embodiment the electrode has a first end comprising 9.6 volume percent tungsten or molybdenum and the remainder alumina. The second end comprises substantially 100% tungsten. The intermediate body contains layers of, e.g., 12, 20, 35, 50 and 75% tungsten.

REFERENCES:
patent: 3148981 (1964-09-01), Ryshkewitch
patent: 4092560 (1978-05-01), Puskas
patent: 4155758 (1979-05-01), Evans et al.
patent: 4400647 (1983-08-01), Palty
patent: 4404492 (1983-09-01), Palty

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