| 摘要 |
A process for fabricating arc tubes for the manufacture of unsaturated vapor high pressure sodium lamps wherein a first electrode (41) is sealed into one end (37) of a ceramic envelope (35), a sodium-mercury amalgam and an oxygen-absorbing getter are introduced into the ceramic envelope (35), the ceramic envelope is flushed and then filled with a rare gas, and a second electrode (53) is sealed into the other end (39) of the ceramic envelope (35) to provide an arc tube wherein decomposition of the amalgam and absorption of oxygen occurs within the ceramic envelope during operational use. |
