| 摘要 |
<p>An encapsulated endoscope (2) capable of acquiring a high definition image comprising an illuminating section (11) outputting an illumination light, a section (12) for picking up the image in a subject, a section (16) for deriving the luminance of an image thus picked up, a reference luminance information holding section (17) for storing a reference luminance, a section (18) for comparing the image luminance with the reference luminance, a section (19) for regulating light emission quantity from the illuminating section (11) based on the comparison results, a timing control section (20) for controlling the driving timing of each constitutional element, and a timing generator (21) functioning as a noise removing means. The timing control section (20) controls the timing for operating as a noise removing means after completing output of an electric signal from the image pickup section (12) and before starting output of illumination light from the illuminating section (11) regardless of variation in light emission quantity from the illuminating section (11), thus removing noise caused by a dark current without having any adverse effect on other operations.</p> |
