Patent ID: 8218962
Filing Date: 2012-07-10
Classification: G03B,H04N

Abstract:
1. An image-capturing apparatus comprising: an image-capturing optical system; a sensor unit having a pair of line sensors that receive light fluxes of an object, which have been transmitted through a pair of partial areas in an exit pupil of the image-capturing optical system; image-capturing elements having a pixel arrangement capable of generating an image signal related to object light that has been transmitted through the image-capturing optical system, and a focus detection pixel sequence, in which two or more pairs of pixels that receive the light fluxes of an object, which have been transmitted through a pair of partial areas in an exit pupil of the image-capturing optical system, are arranged in a predetermined direction; continuous image-capturing means for performing continuous image capturing of actually exposing the image-capturing elements in sequence, thereby generating the image signal in the pixel arrangement at the time of each actual exposure, and for generating a predetermined signal in the focus detection pixel sequence; signal generation means for performing another exposure for the sensor unit during intervals between actual exposures, thereby generating specific signals in the pair of line sensors; first focus detection means for performing focus detection of a phase-difference detection method on the basis of the predetermined signal generated by the actual exposure; second focus detection means for performing focus detection of the phase-difference detection method on the basis of the specific signal generated by the other exposure; and focus adjustment means for performing focus adjustment during intervals between actual exposures on the basis of a first focus detection result obtained by the first focus detection means and a second focus detection result obtained by the second focus detection means.