Low-pressure alkali metal vapor discharge lamp with arc tube get

Details Low-pressure alkali metal vapor discharge lamp with arc tube get Low-pressure alkali metal vapor discharge lamp with arc tube get

1984-04-09

1986-05-13

Moore, David K.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313558, 313562, 313638, H01J 6122, H01J 6126, H01J 6134

Patent

active

045889198

ABSTRACT:
A low-pressure alkali metal vapor discharge lamp has a getter for bi- and triatomic gases and a getter holder in the arc tube near at least one electrode. The electrodes need be heated less strongly during evacuation of the prior to final dosing, as a result of which no emitter material of the electrodes is lost. The ignition voltage is considerably lower than that of conventional lamps without a getter.

REFERENCES:
patent: 4117369 (1978-09-01), Kuus et al.
patent: 4277717 (1981-07-01), Van Benthem et al.
patent: 4380714 (1983-04-01), Bouman et al.
patent: 4461981 (1984-07-01), Saikatsu et al.

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