| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the variations of offset ingredients per pixel while securing the dynamic ranges of operating amplifiers, etc. provided in signal processing circuits. SOLUTION: The image pickup device is equipped with a conversion circuit 110 where a pixel 111 including a conversion element to convert entering radiations into electric charges and a switch element to transfer the above electric-charge based electric signals is arranged in a two-dimensional matrix, signal wirings M1 to M3 connected with a plurality of pixels in the direction of columns, a signal processing circuit connected with these signal wirings and processing electric signals from each pixel 111, variable power sources Vp1 to Vp3 to supply voltage to the signal wirings M1 to M3, and a control circuit 134 to control the voltage to be supplied from the variable voltage sources Vp1 to Vp3 to the signal wirings M1 to M3 based on the image data processed by the signal processing circuit beforehand. COPYRIGHT: (C)2008,JPO&INPIT
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