| 摘要 |
PURPOSE:To prevent a lens from becoming dirty and to carry out detection with high precision and high efficiency by providing the rubbing part of a cleaning device slidably on a lens surface opposing to a detection part. CONSTITUTION:The cleaning device 19 consists of a lever body 20 and a brush 21 flocked on the bottom surface of the lever body 20 as the rubbing part, which is provided slidably on the surface of a lens 13a facing to the slit 10 of a shoot 8 as the detection part. The cleaning device 19 is slid manually on the lens surface and returned by the force of a spring 22. |
