摘要 |
PURPOSE:To realize stable electromagnetic driving with a small force, by using a driving force generated by electrifying an electric conductor coil placed in a magnetic field, executing the start of an auto focusing (AF) mechanism by the first electrification, and controlling the AF mechanism and the shutter by the second electrification. CONSTITUTION:When feeding a film, a pawl part 12d of a set plate 12 is made to press-contact with 8d and a lever 8 is fitted to a lever 5. A lever 13 also moves, and by turning of a ring 21, an AF mechanism is charged. By a release operation, a rotor 2 is turned by the first electrification to a coil of an electric conductor, a detaining lever 8 is detached, the set plate 12 is restored, and by the lever 13, the AF mechanism is started. 8f is held by 13d, and when the electrification is stopped, the rotor 2 is restored to 10b. By movement of the lever 13, a lens barrel 23 and an IRED bar 26 are scanned, and by a coincidence signal, the second electrification is executed, the rotor is turned, the lever 8 is detached, and by a pawl 8g, focusing is completed. |