METAL HALIDE LAMP, METAL HALIDE LAMP LIGHTING, AND HEAD LIGHT
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United States of America Patent
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Issued Date -
Feb 3, 2011
app pub date -
Jul 26, 2006
filing date -
Jul 28, 2005
priority date (Note) -
Abandoned
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Abstract
[Problems] A mercury-free metal halide lamp improved in light beam maintaining rate by limiting an excessive temperature rise at the upper portion of an arc tube at starting, a metal halide lamp lighting device using this and a head light.(V).
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