Patent ID: 8994861
Filing Date: 2015-03-31
Classification: H04N

Abstract:
1. An imaging apparatus, comprising: a CCD type solid state imaging device that includes a plurality of first photoelectric conversion elements and a plurality of second photoelectric conversion elements arranged in a two-dimensional array; a mechanical shutter positioned in a light incident side of the solid state imaging device; and a driving unit that performs a driving in which a first signal according to electrical charges accumulated in the plurality of first photoelectric conversion elements during a first exposure period and a second signal according to electrical charges accumulated in the plurality of second photoelectric conversion elements during each of a plurality of second exposure periods are read by sequentially exposing the plurality of second photoelectric conversion elements for the plurality of the second exposure periods having different lengths of time while simultaneously exposing the plurality of first photoelectric conversion elements for the first exposure period, wherein each of the second exposure periods overlaps with the first exposure period, and, the driving unit performs a global reset driving to make the first exposure period start, closes the mechanical shutter to make the first exposure period end after starting the first exposure period, and performs a rolling reset driving to make exposure periods, except for at least a last exposure period of the plurality of the second exposure periods, start, in the global reset driving, the accumulated electrical charges of the plurality of the first photoelectric conversion elements are simultaneously reset, and in the rolling reset driving, the accumulated electrical charges of the plurality of the second photoelectric conversion elements is sequentially reset for each line of the second photoelectric conversion elements, wherein the driving unit performs the global reset driving such that the accumulated electrical charges of the plurality of the second photoelectric conversion elements is simultaneously reset to make the last exposure period of the plurality of second exposure periods start and closes the mechanical shutter to make the last exposure period of the plurality of second exposure periods end, wherein the last exposure period of the plurality of the second exposure periods is a shortest period among the plurality of second exposure periods.