Electric flash apparatus
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United States of America Patent
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-
Oct 1, 1991
Grant Date -
N/A
app pub date -
Mar 28, 1990
filing date -
Mar 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric flash apparatus of the present invention is actuated to emit light by application of a trigger signal issues by a trigger circuit (5) after a power transistor (4), such as, an I.G.B.T. (insulated gate bipolar transistor) connected in series with a flash tube (3), is certainly turned to sufficient ON state.
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