Metal halide lamp with oversaturated red
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United States of America Patent
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Apr 23, 2013
Grant Date -
Jun 9, 2011
app pub date -
Aug 3, 2009
filing date -
Aug 6, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A metal halide lamp includes a ceramic discharge vessel that encloses a discharge space which accommodates two electrodes and contains a salt filling. The salt filling includes sodium iodide, thallium iodide, calcium iodide, cerium iodide, and barium iodide as a colorpoint stabilizing additive. The salt filling further includes calcium iodide and thallium iodide, and substantially no sodium iodide. The salt filling further comprises mercury iodide.
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Cited Art Landscape
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