Arc tube fabrication process

Details Arc tube fabrication process Arc tube fabrication process

1990-11-13

1991-06-25

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

H01J 900

Patent

active

050263110

ABSTRACT:
A process for fabricating arc tubes for the manufacture of unsaturated vapor high pressure sodium lamps wherein a first electrode is sealed into one end of a ceramic envelope, a sodium-mercury amalgam and an oxygen-absorbing getter are introduced into the ceramic envelope, the ceramic envelope is flushed and then filled with a rare gas, and a second electrode is sealed into the other end of the ceramic envelope to provide an arc tube wherein decomposition of the amalgam and absorption of oxygen occurs within the ceramic envelope during operational use.

REFERENCES:
patent: 3401296 (1968-09-01), Rigot
patent: 3628846 (1971-12-01), Cortorillo
patent: 3642340 (1972-02-01), Yamane et al.
patent: 3657589 (1972-04-01), Della Porta
patent: 3726582 (1973-04-01), Tol et al.
patent: 3986236 (1976-10-01), Barakitis et al.
patent: 4156550 (1979-05-01), Furukubo et al.
patent: 4157485 (1979-06-01), Wesselink et al.
patent: 4308650 (1982-01-01), Hernandez et al.
patent: 4333032 (1982-06-01), Wyner et al.

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