Photography – With exposure objective focusing means – focusing aid – or... – Processing circuit
Reexamination Certificate
2008-07-17
2010-11-30
Fuller, Rodney E (Department: 2862)
Photography
With exposure objective focusing means, focusing aid, or...
Processing circuit
C348S353000
Reexamination Certificate
active
07844176
ABSTRACT:
An imaging device comprising a first contrast AF unit that obtains contrast information of a subject image from subject image data, and guides a photographing lens to within a first in-focus permissible based on the contrast information; a phase difference AF unit for receiving subject light flux to detect a defocus amount of the photographing lens by the phase difference method, and guiding the photographing lens to within a second in-focus permissible range in response to the detection results; a release button having a two stage operating arrangement of half pressed and fully pressed; and a control unit for, when the release button has been pressed down halfway during execution of the live view display operation, executing a focusing operation using the first contrast AF unit, and, after that, when the release button is pressed down fully, executing a focusing operation using the phase contrast AF unit.
REFERENCES:
patent: 5628036 (1997-05-01), Ozawa et al.
patent: 2008/0118238 (2008-05-01), Sogawa et al.
patent: 2009/0051807 (2009-02-01), Kunishige et al.
patent: 2001-285130 (2001-10-01), None
Kunishige Keiji
Miyazaki Satoshi
Fuller Rodney E
Olympus Imaging Corp.
Pokotylo John C.
Straub & Pokotylo
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