| 摘要 |
PURPOSE:To easily perform wiping action by a simple mechanism without providing a particular driving mechanism by fitting a fitting member to a mover by variable power-moving a lens unit, thereafter performing predetermined sliding action, and wiping off a mirror reflecting surface. CONSTITUTION:A mover 9 is formed into a triangle in accordance with an angle of each mirror 2, 3, 5, 6, and a wiping member 10 of felt or the like is provided in a contact surface opposed to a reflecting surface of each mirror 2, 3, 5, 6. This wiping member 10 is supported pressed toward each reflecting surface from the mover 9 to provide no particular driving means. Consequently, for sliding the mover 9, a fitting unit 40, fitted to the mover 9, is mounted to a lens unit 4 and fitted to the mover by utilizing a vertically and horizontally variable power moving mechanism thereafter slid so as to wipe off the reflecting surface of each mirror 2, 3, 5, 6. In this way, wiping action can be easily performed by a simple mechanism without providing the particular driving means. |
