| 摘要 |
<p>An imager in which flicker generated in the frame of the solid-state imaging element is removed. A light amount sensor (2) is provided near a sensor photodetecting part (1) so as to always monitor the amount of light entering the sensor photodetecting part (1). The sensing data collected by the light-amount sensor (2) is sent to a light-amount sensing data processing part (correction value calculating part) (4). The light-amount sensing data processing part (4) measures the current light-amount state from the inputted sensing data and calculates correction data for flicker removal from the current light-amount state. Thus, the emission cycle of a light source can be determined by determining the maximum/minimum values of the amount of light by the calculation by a microcomputer. Correction is made by multiplying the imaging signal by the reciprocal of the integrated amount of light in such a way that the phase with respect to the light source emission cycle is shifted by 90°. The correction is performed by sending the correction data to a multiplier (gain amplifier) (7).</p> |
