Method for manufacturing a double tube discharge lamp
A discharge lamp and inner tube technology, which is applied in the field of manufacturing discharge, can solve problems such as damage to the sealing part, and achieve the effect of eliminating the risk of rupture
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[0025] figure 1 schematically shows a longitudinal section through the main part of a twin-tube discharge lamp comprising a first inner tube 1 and a second outer tube 30 closing the first inner tube 1.
[0026] The first inner tube 1 encloses a discharge chamber 2 which contains a discharge gas. A gas discharge arc is excited between opposite ends of the first electrode 3 and the second electrode 4, which extend into the discharge chamber.
[0027] The second outer tube 30 hermetically closes an inner volume 31 which is preferably filled with gas or dry air or which is evacuated. Furthermore, the second outer tube 30 also closes the first inner tube 1 , the first axial seal 5 and the second axial seal 6 of the first inner tube 1 as well as the first axial extension 7 and the second axial extension. Each of the first axially extending portion 7 and the second axially extending portion 8 passes the first axially sealing portion 5 and the second axially sealing portion 6 throu...
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