High-pressure gas discharge lamp and method of manufacturing the same
A high-pressure gas, discharge lamp technology, used in the manufacture of gas discharge lamps, high-pressure discharge lamps, discharge tubes/lamps, etc.
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[0015] figure 1 The electrode of the high-pressure gas discharge lamp according to the invention is represented, which comprises an electrode shaft 1 whose free end extends into the discharge space and which has a widening spherical electrode head 2 . A tapered electrode protrusion is formed on this electrode head 2 in the following manner. The rod-shaped member 3 made of the same material as the electrode rod 1 is welded on the widened electrode head 2 of the electrode rod 1 by an energy source, for example with three lasers 4 , or by high-frequency heating or by a discharge arc, so that the lasers 4 Arranged around the end of the rod-shaped member 3 facing the widening electrode head 2 (i.e. viewed in a plane perpendicular to the rods 1, 3, see figure 1 ), that is, the lasers include 120° to each other. like figure 2 Said, said end of the rod-shaped member 3 is given a substantially conical shape, ie a reduced electrode protrusion 5 . The entire assembly is pressed in...
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