Flicker-suppressed, low-power, high-pressure discharge lamp
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United States of America Patent
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Apr 23, 1996
Grant Date -
N/A
app pub date -
Jan 21, 1993
filing date -
Feb 11, 1992
priority date (Note) -
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status (Latency Note)
Importance
Abstract
To reduce flicker in low-power, high-pressure discharge lamps, the electrs, in the region in which they face each other, have wrap windings, of about 2 to 4 turns wrapped thereabout and the terminal end of the electrode has an essentially spherical end head element (19, 19', 39) melted thereon, which essentially spherical head element may be a segment of a sphere, ellipsoid-shaped or similarly formed. The electrode shaft, the wrap winding and the sphere preferably are all made of undoped tungsten, although the electrode shaft may be of a lower melting metal, such as rhenium.
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