| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a drive unit including a mechanism capable of reducing or suppressing vibrations and noise, etc., when a movable member is driven. <P>SOLUTION: The drive unit includes: a movable member 11; a fixed member 23 for movably holding the movable member; an actuator 14 arranged at the fixed member, for moving the movable member relative to the fixed member; a vibrator 20 for generating inertia force for reducing or suppressing the vibrations by reaction acting on the fixed member on the basis of the movement of the movable member when the movable member is driven by the actuator; and a control part 21 for controlling the vibrations of the vibrator. The control part controls the vibrator such that the time required for a vibration speed of the vibrator to reach the highest speed from the lowest speed and the time required for it to be the lowest speed after reaching the highest speed do not become equal. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
