| 摘要 |
PURPOSE:To make possible the focusing of the photographic lens mounted to a lens mounting part and make possible the use of conventional photographic lenses by moving the lens mounting part in the optical axis direction. CONSTITUTION:When a lens mounting part 26 is extended in the optical axis direction, the part 26 and a stationary box part 24 are connected in a manner as to shield the light from the outside. A motor 52 is connected via a gear 64 to the tooth part 66a of a driving lever 66. The lever 66 is moved only in the optical axis direction by the guide pin 68 implanted in a mirror box 34 and the guide shaft 70 fitting in the long hole of the lever 66. When the motor 62 is run, the lever 66 moves in the optical axis direction, and linking mechanisms 42, 40, 41 extend or contract, then the mounting part 26 moves in the optical axis direction while being guided. |
