| 摘要 |
PURPOSE:To facilitate light quantity adjusting/setting operation for a light source without using any external equipment by detecting and indicating clearly the proper quantity of light by using an internal image information correcting means. CONSTITUTION:When proper light quantity level detection is performed, a shading correcting circuit 211 operates. Namely, a signal SG1 sent out of a CCD driver part 23/203 is stored in a storage device 212 in synchronism with a synchronizing signal for a one-line read. A CPU 208 reads the contents of the storage device 212 in synchronism with said synchronizing signal to judge whether or not reference white signal information is within a proper level range, and turns on a LED lamp, etc., when the information is within the specific level range, thereby indicating that.
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