Electrode-inlead for miniature discharge lamps

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

H - Electricity

01

J

313/132

H01J 61/073 (2006.01) H01J 17/04 (2006.01)

Patent

CA 1116222

LD 7683 ELECTRODE-INLEAD FOR MINIATURE DISCHARGE LAMPS ABSTRACT An electrode-inlead assembly comprises a small tung- sten 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.

307819

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