ELECTRODE FOR DISCHARGE LAMP AND METHOD FOR MANUFACTURING SAME
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United States of America Patent
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Issued Date -
Dec 20, 2012
app pub date -
Feb 21, 2011
filing date -
Apr 2, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is an arrangement for a cut type electrode, wherein the removal of a coil is prevented and the generation of gap between turns of a coil caused by repeatedly turning on and off of the lamp is suppressed. The electrode, which is for a discharge lamp, comprises: a core rod having a leading end portion for discharge formed by a cutting process; and a coil wound around the core rod in n-turns in a state exposing the leading end portion, wherein at least a first portion between a first turn and a turn adjacent to the first turn and a second portion between an n-th turn and a turn adjacent to the n-th turn are welded.
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