发明名称 IMAGING APPARATUS AND METHOD FOR CONTROLLING SAME
摘要 A control device acquires a focus detection signal from a pixel portion of the imaging element so as to detect a focus state by phase difference detection. A camera control unit performs focus adjustment control by the drive control of a focus lens constituting an imaging optical system. The camera control unit performs exposure control for adjusting the brightness of an object in the focus area to an appropriate level, and determines whether or not the brightness level of the object in the focus area is saturated based on the focus detection signal. When the exposure state during a focus adjustment operation is not in an appropriate state, the camera control unit calculates an exposure correction value and determines whether or not the exposure correction value falls within the exposure control range. When the exposure correction value falls within the exposure control range, the exposure state is readjusted.
申请公布号 US2014333823(A1) 申请公布日期 2014.11.13
申请号 US201414265881 申请日期 2014.04.30
申请人 CANON KABUSHIKI KAISHA 发明人 Sakaguchi Takeshi
分类号 H04N5/232;H04N5/235 主分类号 H04N5/232
代理机构 代理人
主权项 1. A control device comprising: a detecting unit configured to acquire an output signal from an imaging unit having an imaging element so as to perform phase difference type focus detection, wherein the imaging element outputs a signal photoelectrically converted at a predetermined cycle; and a control unit configured to perform exposure control of the imaging element and to perform focus adjustment control of an imaging optical system with respect to an object by acquiring detection information from the detecting unit, wherein, when the control unit determines that an output signal for phase difference type focus detection from the imaging unit is saturated while performing the focus adjustment control, the control unit performs exposure control so as not to saturate the output signal from the imaging unit.
地址 Tokyo JP