Discharge lamp and electronic flash device using the same
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United States of America Patent
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Mar 11, 2003
Grant Date -
N/A
app pub date -
Dec 14, 2001
filing date -
Apr 28, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a discharge lamp, at least one of two main electrodes disposed at both ends of the discharge lamp includes one main electrode that comprises a sintered metal member having a slope with respect to another main electrode. A tip of the slope is positioned within a space covered by a trigger electrode coated on an outer surface of the discharge lamp in a limited area with respect to the entire circumference of a bulb of the lamp. This structure allows the discharge lamp to emit light at a stable level constantly. An electronic flash device using this discharge lamp can emit the light precisely.
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