Electronic flash unit and manufacturing method thereof
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United States of America Patent
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Jan 26, 2010
Grant Date -
Jan 13, 2005
app pub date -
Nov 28, 2002
filing date -
Nov 30, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
The electronic flash unit disclosed comprises: a transformer (14) to vary voltages of a power supply; an accumulator (16) composed of a main capacitor (17) to charge an electric energy supplied from the transformer (14); a lamp unit (4) provided with a flashlamp (20), set inside of a reflector (19), that flashes by discharging of energy storages in the main capacitor (17) upon applying a voltage on a trigger terminal (21); and a trigger circuit (10) to generate the voltage to apply on the trigger terminal (21), wherein at least the lamp unit (4) is coated with an insulation material.
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