IMAGE PICKUP DEVICE AND IMAGING APPARATUS

To obtain appropriate exposure for each area of an image.SOLUTION: An image pickup device includes: a first semiconductor substrate which has a plurality of pixels arranged in each of row and column directions; a second semiconductor substrate which has a first conversion part for converting a signal read in a first output wiring from a first pixel of the plurality of pixels into a digital signal and a second conversion part for converting a signal read in a second output wiring from a second pixel arranged at a position on the column direction side from the first pixel of the plurality of pixels into a digital signal; a first adder which executes addition processing on a first signal converted into a digital signal by the first conversion part, of the signal read from the first pixel in the first output wiring; and a third semiconductor substrate which has a second adder for executing addition processing on a second signal converted into a digital signal by the second conversion part, of the signal read from the second pixel in the second output wiring.SELECTED DRAWING: Figure 4 【課題】画像のエリアごとに適正露出を得ること。【解決手段】撮像素子は、行方向と列方向とにおいてそれぞれ配置される複数の画素を有する第１半導体基板と、前記複数の画素のうち第１画素から第１出力配線に読み出された信号をデジタル信号に変換する第１変換部と、前記複数の画素のうち、前記第１画素から前記列方向側の位置に配置される第２画素から第２出力配線に読み出された信号をデジタル信号に変換する第２変換部とを有する第２半導体基板と、前記第１画素から前記第１出力配線に読み出された信号のうち、前記第１変換部でデジタル信号に変換された第１信号に加算処理を行う第１加算器と、前記第２画素から前記第２出力配線に読み出された信号のうち、前記第２変換部でデジタル信号に変換された第２信号に加算処理を行う第２加算器とを有する第３半導体基板と、を備える。【選択図】図４