| 摘要 |
PROBLEM TO BE SOLVED: To secure the stable actuation of a driving device for a camera by turning a rotor magnetized to multiple poles over a wide range by a single stator. SOLUTION: This driving device for a camera is constituted so that the rotor 10 magnetized to the multiple poles is turned by energizing a coil L in a normal and a reverse directions, wound round the intermediate part of the stator 9. Then, pole parts 9a and 9b are formed at both ends of the stator 9 by being opposed to an opening angle corresponding to the outside circumferential pole of the rotor 10 and communicating-pole pins 13a and 13b are arranged at positions opposed to the outside circumference of the rotor 10 near the parts 9a and 9b. By the action of the pins 13a and 13b, the rotor 10 is stopped at a static stable position biased more clockwise than the case of only the stator 9. Therefore, if the stator 9 is excited when the rotor 10 is turned next, the rotor 10 is turned in a fixed direction and stable initial excitation is obtained.
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