Ceramic envelope plug and lead wire and seal

Details Ceramic envelope plug and lead wire and seal Ceramic envelope plug and lead wire and seal

1975-12-15

1976-11-16

Rolinec, R. V.

Electric lamp and discharge devices

With temperature modifier

For lead-in-seal or stem protection

313 42, 313217, 313331, H01J 6152

Patent

active

039926427

ABSTRACT:
A metal vapor arc lamp comprises an alumina ceramic arc tube having an end sealed by an apertured ceramic plug. A metal lead wire extending through the aperture is sealed therein, and supports an electrode within the arc tube. Thermal isolation of the lead wire seal from the electrode is necessary and is achieved by providing a loop in the supporting conductor intervening between the electrode and the lead wire seal region.

REFERENCES:
patent: 3363133 (1968-01-01), Harris et al.
patent: 3609437 (1971-09-01), Tol et al.

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