| 摘要 |
For a solid-state image pickup device 1, a plurality of pixels are two dimensionally arranged in an imaging region 10, and two photodiodes PD 1 and PD 2 are included in each pixel P m,n . An electric charge generated in the respective photodiodes PD 1 and PD 2 is input to a signal readout section 20, and a voltage according to an electric charge amount thereof is output from the signal output section 20. The voltage output from the signal readout section 20 is input to an A/D converting section 40, and a digital value according to the input voltage is output from the A/D converting section 40. In an adding section 50, a sum of digital values to be output from the A/D converting section 40 according to the amount of electric charge generated, for each pixel P m,n of the imaging region 10, in the two respective photodiodes PD 1 and PD 2 included in the pixel is operated, and a digital value being a sum value thereof is output. |
