H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/067 (2006.01) B23K 26/20 (2006.01) H01J 9/02 (2006.01) H01J 9/18 (2006.01) H01J 61/06 (2006.01)
Patent
CA 2103692
ABSTRACT: "A method of installation of composite electrodes in discharge lamps" A method of electrically connecting and securing a composite discharge electrode in an electric gas discharge lamp. A composite discharge electrode is held against a metallic lead-through conductor. A beam of laser light is directed onto a region of the lead-through immediately adjacent the electrode to form a pool of molten metal which wets the composite electrode. The beam of laser light is then removed such that the pool of molten metal solidifies and coalesces with the lead-through and the electrode. The resultant weld provides a good electrical, as well as a physical,connection and permits the use of prefabricated composite sintered discharge electrodes without integral leads along with conventional lead-through wires of the type conventionally used in gas discharge lamps.
Goldburt Efim
Patt Paul J.
Woodward David R.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Philips Electronics N.v.
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