High-pressure discharge lamp

Details High-pressure discharge lamp High-pressure discharge lamp

H - Electricity

01

J

H01J 1/148 (2006.01) H01J 1/13 (2006.01) H01J 61/073 (2006.01)

Patent

CA 2183481

The invention concerns high-pressure discharge lamps, whose electrodes have a sintered compact (5) containing lanthanum oxide acting as an electron emitter, and this compact is surrounded by an electrode coil (6). Sintered compact (5) contains at least 90 weight % lanthanum oxide. In this way, a high thermal stability of sintered compact (5) and a good ignition performance of the lamp are assured with only negligible blackening of the discharge vessel over the service life of the lamp.

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