Fluorescent lamp having support wires made with austenitic steel

Details Fluorescent lamp having support wires made with austenitic steel Fluorescent lamp having support wires made with austenitic steel

1982-07-08

1984-04-17

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313332, 174 5052, H01J 162, H01J 550, H01J 500

Patent

active

044437382

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.

REFERENCES:
patent: 2716714 (1955-08-01), Adams et al.

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