Image sensor and electronic camera
摘要
說(shuō)明書
In the example described above, the electric current from the first electric current source 25 is shunted and provided to the pixel 10 (1, 1) and the pixel 10 (3, 1) and a combined pixel signal obtained by combining the pixel signal from the pixel 10 (1, 1) and the pixel signal from the pixel 10 (3, 1) is read out to the first vertical signal line VL1. The electric current from the second electric current source 26 is provided in its entirety to the pixel 10 (2, 1) at the central position and the pixel signal from the pixel 10 (2, 1) is read out to the second vertical signal line VL2. Then, a sum pixel signal is generated at the arithmetic unit 50 by adding together and averaging the combined pixel signal derived from the pixel 10 (1, 1) and the pixel 10 (3, 1) and the pixel signal from the pixel 10 (2, 1). Through this process, a sum pixel signal can be obtained by applying the greatest weight to the pixel signal from the pixel 10 (2, 1) at the central position among the three pixels.
