Method vapor discharge lamp having specific range of xenon press

Details Method vapor discharge lamp having specific range of xenon press Method vapor discharge lamp having specific range of xenon press

1980-03-24

1982-02-02

Gensler, Paul L.

Electric lamp and discharge devices

Liquid electrode discharge devices

Auxiliary starting or holding electrode

313185, 313198, 313225, H01J 6126

Patent

active

043141757

ABSTRACT:
The invention relates to a high-pressure sodium vapor discharge lamp which has a discharge vessel in which xenon and a xenon-absorbing substance are present. The xenon is absorbed partly in the absorbing substance. When the temperature is raised xenon is released.
According to the invention, the xenon pressure P at room temperature has a value which satisfies 1 kPa.ltoreq.P.ltoreq.25 kPa. Herewith it is achieved that a lamp is obtained having good ignition properties and a high xenon pressure in the operating condition of the lamp, resulting in a large luminous flux.

REFERENCES:
patent: 4146813 (1979-03-01), van Vliet
patent: 4253037 (1981-02-01), Driessen et al.

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