Arc tube dosing process for unsaturated high pressure sodium lamp.

摘要

In a process of dosing the arc tube of an unsaturated vapor high pressure sodium lamp, a sodium-containing compound, an oxygen-absorbing getter, mercury and a rare gas are deposited within the arc tube, and the arc tube is sealed whereby thermal decomposition of the sodium-containing compound is effected within the arc tube and the getter prevents compound reformation by absorbing the oxygen therein.