Three-phase high-pressure gas discharge lamp filled with a gas c

Details Three-phase high-pressure gas discharge lamp filled with a gas c Three-phase high-pressure gas discharge lamp filled with a gas c

1988-07-15

1990-03-27

Wieder, Kenneth

Electric lamp and discharge devices

With gas or vapor

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

313631, 313634, 313636, 313306, H01J 61073, H01J 6130, H01J 6136

Patent

active

049123645

ABSTRACT:
A three-phase high-pressure gas discharge lamp comprising a discharge vessel (1) made of a translucent heat-resistant material. Three electrodes are arranged in the discharge vessel (1), each being fed from a separate phase of a three-phase supply system, each electrode including an electrode tip (7), an electrode stem (5) and an electrode head (6). The electrodes are arrnaged so that their electrode tips (7) occupy the vertices of an equilateral triangle fully enclosed in the discharge vessel (1). The discharge vessel (1) contains a filling consisting of a noble gas, mercury and a further additive selected from the group consisting of preferably sodium and a metal-halide.

REFERENCES:
patent: 2459516 (1949-01-01), Francis et al.
patent: 4037128 (1977-07-01), Levin et al.
"Discharge Lamp", Appl. No. 55-2727 (Abstract), Matsushita Denko K.K., Japan, 11/1981.

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