Electric lamps and their production

Details Electric lamps and their production Electric lamps and their production

1977-02-24

1978-07-04

Rolinec, Rudolph V.

Electric lamp and discharge devices

Liquid electrode discharge devices

Auxiliary starting or holding electrode

313227, 316 25, H01J 6126

Patent

active

040990818

ABSTRACT:
The invention relates to the production of metal halide discharge lamps. Residual water vapor within the envelope of metal halide discharge lamps is gettered by the inclusion of a small quantity of phosphorus. By this means it is possible to dispense with complexities in the conventional manufacture of such discharge lamps arising from the hygroscopic nature of many metal halides.

REFERENCES:
patent: 3898500 (1975-08-01), Johnson et al.

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