Metal halide lamp using loop electrodes

Details Metal halide lamp using loop electrodes Metal halide lamp using loop electrodes

1974-10-07

1976-02-10

Rolinec, R. V.

Electric lamp and discharge devices

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

For plural electrodes of discharge device

313229, 313344, H01J 6106

Patent

active

039379965

ABSTRACT:
A metal vapor arc lamp having a filling including pyrolitically decomposing metal halides such as thorium iodide uses a loop electrode which allows the heat from the hot spot to flow in two directions. Such electrodes are less expensive to manufacture and, in an environment where the decomposing metal halide provides activation, they are less subject to deformation and consume less energy than conventional electrodes comprising shank plus overwind.

REFERENCES:
patent: 2123015 (1938-07-01), Marden et al.
patent: 3313974 (1967-04-01), Koury et al.
patent: 3356884 (1967-12-01), Decker et al.
patent: 3689794 (1972-09-01), Van Esdonk

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