Ceramic metal halide lamp with feedthrough comprising an iridium wire
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United States of America Patent
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Sep 22, 2015
Grant Date -
Jan 31, 2013
app pub date -
Mar 31, 2011
filing date -
Apr 2, 2010
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Abstract
The invention relates to a ceramic metal halide lamp having a ceramic discharge vessel, characterized in that the discharge vessel encloses a discharge space which comprises an electrode, which electrode is electrically connected to a conductor outside the discharge vessel by means of a feedthrough comprising an Ir wire, the feedthrough being gas-tight mounted in an extended plug, also referred to as vup, of the discharge vessel, the feedthrough comprising an electrode—feedthrough combination made up of at least three parts with a W or W—Re rod or a Mo or Mo alloy wire extending out of the vup for burner mounting, which W or W—Re or MO or MO alloy wire is welded to the Ir wire.
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