Imaging apparatus
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United States of America Patent
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Oct 4, 2016
Grant Date -
Jul 23, 2015
app pub date -
Jan 15, 2015
filing date -
Jan 21, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A focus detection apparatus includes the following: a viewing field mask disposed more on a photoelectric conversion element side than an expected imaging plane of an imaging lens and configured to determine contours of optical images formed on a detection plane, a sensor including a photoelectric conversion element disposed extending outside the optical images and including a plurality of pairs of focus detection regions in each of which the optical images are detected, a memory configured to store, as adjustment values, pieces of data indicating positions of effective ranges in the pairs of focus detection regions, in a plurality of storage areas in a way that each of the pieces of data is stored in a corresponding one of the storage areas, and a control unit configured to obtain the adjustment value data from the memory and perform focus detection for the imaging lens to control focus adjustment operation.
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