Electronic flash controlling device
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United States of America Patent
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-
May 6, 2003
Grant Date -
Oct 24, 2002
app pub date -
Feb 5, 2002
filing date -
Apr 18, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electronic flash controlling device controls a flash light emitting unit that performs a main light emission and a preliminary light emission prior to the main light emission. A maximum preliminary light emission quantity setting unit sets a maximum preliminary light emission quantity for the preliminary light emission during which a smaller quantity of light is emitted than a maximum light emission quantity based upon maximum light emission quantity information regarding a total light emission quantity which the flash light emitting unit is capable of generating. A preliminary light emission executing unit engages the flash light emitting unit in the preliminary light emission by using the maximum preliminary light emission quantity set by the maximum preliminary light emission quantity setting unit as an upper limit.
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