Low-pressure sodium vapor discharge lamp

Details Low-pressure sodium vapor discharge lamp Low-pressure sodium vapor discharge lamp

1978-10-18

1980-06-24

Demeo, Palmer C.

Electric lamp and discharge devices

Liquid electrode discharge devices

Auxiliary starting or holding electrode

313221, 313227, H01J 6122, H01J 6126, H01J 6130

Patent

active

042097266

ABSTRACT:
A low-pressure sodium vapor discharge lamp having electrodes at the ends of the discharge vessel, the lamp comprising means which prevent the vapor pressure of sodium in the discharge vessel from exceeding 3.times.10.sup.-5 torr during the life of the lamp.

REFERENCES:
patent: 2899584 (1959-08-01), Verwey
patent: 3134920 (1964-05-01), van de Weijer et al.
patent: 3416022 (1968-12-01), Mayer
patent: 3678315 (1972-07-01), Wesselink et al.

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