High pressure mercury vapor discharge lamp containing bismuth io

Details High pressure mercury vapor discharge lamp containing bismuth io High pressure mercury vapor discharge lamp containing bismuth io

1967-10-27

1976-11-02

Demeo, Palmer C.

Electric lamp and discharge devices

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

For plural electrodes of discharge device

313184, H01J 6120

Patent

active

039899721

ABSTRACT:
A high pressure, mercury-vapor (HPMV) discharge lamp of the additive type having a discharge sustaining filling which includes between 0.5 and 2.5 mg. of bismuth iodide (BiI.sub.3) per cubic centimeter of arc tube volume, a mercury charge of about 3.0 mg. per cubic centimeter of arc tube volume and a small quantity of inert ionizable starting gas whereby a substantially continuous radiation spectrum is achieved.

REFERENCES:
patent: 2765416 (1956-10-01), Beese et al.
patent: 3234421 (1966-02-01), Reiling
patent: 3262012 (1966-07-01), Koury et al.
patent: 3331982 (1967-07-01), Waymouth et al.
patent: 3416023 (1968-12-01), Eckel et al.
patent: 3450925 (1969-06-01), Johnson
"Characteristics of Mercury Vapor-Metallic Iodide Arc Lamps," by Gilbert H. Reiling, Journal of the Optical Society of America, vol. 54, No. 4, pp. 532-540, Apr. 1964.
"Tubular Metal Halide Arc Lamps for Photoreproduction Applicatons," by R. D. Ayotte and R. R. Hale, Transaction I. E. S., pp. 221-228, Apr. 1967.

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