Electrode-inlead for miniature discharge lamps

Details Electrode-inlead for miniature discharge lamps Electrode-inlead for miniature discharge lamps

1978-04-27

1979-01-23

Rolinec, Rudolph V.

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

174 5061, 219121LM, 313331, 29 2511, 174 5064, H01J 6106

Patent

active

041362985

ABSTRACT:
An electrode-inlead assembly comprises a small tungsten pin which is joined on axis to a fine molybdenum wire adapted to sealing through fused silica. The join is effected by a laser butt weld which permits a symmetric compact seal thereby making possible very small discharge envelopes having minimum end losses. The seal may be effected either by a foliated portion in the wire which is wetted by fused silica, or by a glass bead formed around the wire which wets both wire and fused silica.

REFERENCES:
patent: 3639722 (1972-02-01), Pagnotta et al.
patent: 3701921 (1972-10-01), Wiedenmann
patent: 3804529 (1974-04-01), Hansler

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