Unsaturated vapor pressure type high pressure sodium lamp

Details Unsaturated vapor pressure type high pressure sodium lamp Unsaturated vapor pressure type high pressure sodium lamp

1988-11-21

1989-08-08

Wieder, Kenneth

Electric lamp and discharge devices

With getter

2521816, H01J 6126

Patent

active

048556432

ABSTRACT:
An unsaturated vapor pressure high pressure sodium lamp includes an arc tube positioned within an evacuted glass envelope and containing a gas fill including mercury and sodium and a getter having a free energy of formation per mole of oxygen more negative than that of sodium oxide.

REFERENCES:
patent: 3203901 (1965-08-01), Della Porta
patent: 3248590 (1966-04-01), Schmidt
patent: 3453477 (1969-07-01), Hanneman et al.
patent: 3485343 (1969-12-01), Jorgensen
patent: 3558963 (1971-01-01), Hanneman et al.
patent: 4075530 (1978-02-01), Furukubo et al.

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