| 摘要 |
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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