H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/04 (2006.01) H01J 9/02 (2006.01) H01J 61/22 (2006.01) H01J 61/30 (2006.01) H01J 61/36 (2006.01)
Patent
CA 2451829
A metal halide lamp having a ceramic discharge vessel (4), the discharge vessel having two ends (6) which are closed off by stoppers, and an electrically conductive leadthrough (9, 10) being guided through this stopper (12), an electrode (16) with a shank (15) being secured to the leadthrough, which electrode projects into the interior of the discharge vessel, the leadthrough and electrode together being referred to as an electrode system, which comprises two components, which are designed as pins of different diameter, the larger component being a niobium pin and the smaller component, which adjoins it on the inner, discharge side, being a pin made from molybdenum or tungsten which is fitted in a bore in the niobium pin, the ratio of the diameter of the smaller component to that of the Nb pin being between 30 and 65%, and the pin which has been fitted in being secured in the bore by means of a mechanical pressing operation.
Lenz Matthias
Trypke Dieter
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh
Smart & Biggar
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