Focus adjustment apparatus with a size detector
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United States of America Patent
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Sep 1, 2015
Grant Date -
Apr 18, 2013
app pub date -
Oct 11, 2012
filing date -
Oct 16, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a focus position control apparatus, a control unit performs, when a size changing amount of an object image is larger than a predetermined amount during control for driving a focus lens according to a distance change of an object image in an optical axis direction based on a determination result of a determination unit, a following driving operation corresponding to the distance change as a driving control, and limits the following driving operation corresponding to the distance change when the size changing amount of the object image smaller than the predetermined amount. The predetermined amount is changed according to an imaging parameter and an object status.
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