Fluorescent lamp having support wires made with austenitic steel
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United States of America Patent
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-
Apr 17, 1984
Grant Date -
N/A
app pub date -
Jul 8, 1982
filing date -
Jul 10, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a fluorescent lamp electrode assembly a coil electrode is supported on lead wires sealed in a glass flare. It has been found that during on-off switching cycles distortion occurs in the lead wires. To solve this it is proposed to make the lead wires, at least in the region of the electrodes, of single phase material, specifically austenitic steel. If difficulties are presented of matching coefficients of expansion of lead wires and flare the inner parts of the lead wires only may be of that material using a multi part welded structure in which the other parts are of, say, nickel-iron alloy or dumet.
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