PHOTOELECTRIC CONVERSION APPARATUS PROVIDED WITH ARRANGEMENT OF PLURALITY OF PIXELS EACH HAVING PLURALITY OF PHOTOELECTRIC CONVERSION DEVICES AND ACCUMULATING UNIT FOR TEMPORARILY ACCUMULATING CHARGES ACCUMULATED IN PLURALITY OF PHOTOELECTRIC CONVERSION DEVICES

摘要

A pixel unit in which a plurality of pixels shares an accumulating unit for temporarily accumulating charges accumulated in photoelectric conversion devices, is arranged so that a control unit of a photoelectric conversion apparatus is adapted, when an accumulated charge amount of a first photodiode exceeds a saturation charge amount, to effect control in accordance with a first operation to discharge excess charges to a floating diffusion FD, and adapted, when an accumulated charge amount of a second photodiode exceeds a saturation charge amount, to effect control in accordance with a second operation to discharge excess charges to a charge discharge area, thereby expanding a dynamic range.