Patent ID: 9485408
Filing Date: 2016-11-01
CPC Classification: G02B,G03B,H04N

Claim Text:
1. An imaging apparatus comprising: an imaging device having a photodetecting surface at which plural imaging pixels and plural phase difference detection pixels are arranged, the plural imaging pixels detecting an image formed by a light beam that passes through a pupil region of an imaging optical system, the plural phase difference detection pixels comprising plural first phase difference detection pixels that detect one of a pair of images formed by a pair of light beams that pass through different portions of the pupil region of the imaging optical system and plural second phase difference detection pixels that detect other of the pair of images, and plural phase difference detection areas being arranged at the photodetecting surface of the imaging device in a deviation direction of the pair of images, plural pairs of the first phase difference detection pixel and the second phase difference detection pixel being arranged in each of the plural phase difference detection areas; an electrical control system configured to: wherein if the selected phase difference detection area is such that a sensitivity difference between phase difference detection pixels that exhibit a highest sensitivity in the selected phase difference detection area and phase difference detection pixels that exhibit a lowest sensitivity in the selected phase difference detection area is larger than a predetermined value, the electrical control system determines exposure conditions based on output signals of the phase difference detection pixels that exhibit the highest sensitivity in the selected phase difference detection area, and wherein if the selected phase difference detection area is such that the sensitivity difference is smaller than or equal to a predetermined value, the electrical control system determines exposure conditions based on output signals of average sensitivity pixels that are phase difference detection pixels whose sensitivities coincide with an average of sensitivities of all of the phase difference detection pixels existing in the selected phase difference detection area.