Patent ID: 7920782

Claim:
An imaging device having a shooting optical system, the imaging device comprising: an imaging element having a pixel array configured to generate image signals regarding light from a subject coming through the shooting optical system, and a plurality of focus-detection pixel lines each having a plurality of pairs of pixels arrayed along a horizontal direction spanning an entire width of the imaging element and a plurality of pairs of shield plates interposed between each of the plurality of pairs of pixels, the pixels of each of the pairs receiving luminous fluxes from the subject coming through a pair of individually corresponding partial regions of an exit pupil of the shooting optical system; rapid-fire shooting means for performing rapid-fire shooting by successively exposing the imaging element to generate the image signals at the pixel array on occasion of each exposure and to generate certain signals at each of the plurality of focus-detection pixel lines; focus detection means for performing focus detection by a phase-difference detection method on the basis of the certain signals generated by the exposure; and focus adjustment means for performing focus adjustment during each interval of the exposures on the basis of a result of detection by the focus detection means.