Electric discharge lamp with annular current conductor

Details Electric discharge lamp with annular current conductor Electric discharge lamp with annular current conductor

1976-09-16

1979-07-10

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

313198, 313331, H01J 1704, H01J 6106

Patent

active

041609301

ABSTRACT:
The current leadthrough for the auxiliary electrode of a discharge lamp with ceramic lamp vessel is constructed as a cylindrical tube concentric with the leadthrough of the main electrode. The cylindrical tube which serves as a current leadthrough can extend in the lamp vessel and serve itself as an auxiliary electrode. This construction avoids cracking of the lamp vessel. Niobium and tantalum, tungsten molybdenum, rhenium and alloys thereof may be used for the current leadthrough.

REFERENCES:
patent: 3230410 (1966-01-01), Hafkemeyer, Jr.
patent: 3832589 (1974-08-01), Pfaue
patent: 4011480 (1977-03-01), Jacobs et al.
patent: 4052635 (1977-10-01), Jacobs
patent: 4052636 (1977-10-01), Strok

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