Patent ID: 8634015
Filing Date: 2014-01-21
Classification: G02B,G03B,H04N

Abstract:
1. An image capturing apparatus comprising: a pupil dividing member which forms images of a pair of light beams that have passed through different pupil regions of a photographing optical system for forming the image of a subject; a focus detection sensor having a plurality of pixel portions arranged two-dimensionally, said pixel portions photoelectrically converting the images that have passed through said pupil dividing member and that are arranged in a pupil dividing direction along said focus detection sensor, and outputting image signals; and a focus detection unit which calculates correlation between a pair of images which are based upon signals output from said focus detection sensor, wherein said focus detection unit detects an in-focus position from a result of the calculation of correlation, and wherein each one of the pair of images is based upon image signals that include an image signal in a direction that is perpendicular to the pupil dividing direction.