Hollow cathode lamp with improved stability alloy for the cathod

Details Hollow cathode lamp with improved stability alloy for the cathod Hollow cathode lamp with improved stability alloy for the cathod

1979-05-29

1984-03-13

Moore, David K.

Electric lamp and discharge devices

With gas or vapor

Electrode composition

313626, H01J 1704

Patent

active

044370385

ABSTRACT:
A hollow cathode type light source is provided having improved operating stability by forming the cathode of an alloy of a highly reactive, unstable prime metal of interest for spectral emission, and of a chemically stable, readily sputtered metal. An alloy of silver and calcium with a small amount of magnesium provides a hollow cathode device which exhibits stable operation after a minimum warm-up time.

REFERENCES:
patent: 3183393 (1965-05-01), Paterson
patent: 3265511 (1966-08-01), Sallo
patent: 3648092 (1972-03-01), Wooldridge et al.
patent: 3855491 (1974-12-01), Yamasaki
patent: 3893768 (1975-07-01), Stephens
patent: 3898501 (1975-08-01), Hosoya et al.

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