Ceramic envelope device for high-pressure discharge lamp

Details Ceramic envelope device for high-pressure discharge lamp Ceramic envelope device for high-pressure discharge lamp

1985-03-27

1987-05-12

DeMeo, Palmer C.

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

313625, 313634, 313635, H01J 6130, H01J 6135

Patent

active

046653449

ABSTRACT:
A ceramic envelope device for a high-pressure metal-vapor discharge lamp, including a translucent ceramic tube, a pair of end caps closing opposite ends of the ceramic tube, and a pair of oppositely located discharge electrodes each of which is supported at a first end by the corresponding end cap such that a second end of the electrode protrudes from an inner surface of the corresponding end cap in the longitudinal direction of the ceramic tube. The end caps are electrically conductive, and completely covered at their inner surfaces with an electrical insulator.

REFERENCES:
patent: 3026210 (1962-03-01), Coble
patent: 3792142 (1970-08-01), Kobayashi et al.
patent: 4155757 (1979-05-01), Hing
patent: 4155758 (1979-03-01), Evans et al.
patent: 4507584 (1985-03-01), Coaton et al.
patent: 4539511 (1985-09-01), Denbigh et al.

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