Arc tube fabrication process

Details Arc tube fabrication process Arc tube fabrication process

H - Electricity

01

J

316/20

H01J 9/24 (2006.01) H01J 9/38 (2006.01) H01J 61/26 (2006.01)

Patent

CA 1246136

D-24,833 -9- ARC TUBE FABRICATION PROCESS 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.

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