| 摘要 |
PURPOSE:To obtain the arrangement and the structure so as not to change to the external force by providing the non-moving direction of the supporting member in the gravity direction of the supporting member in the supporting member of the actuator to two-dimensionally drive the objective lens and the actuator which does not have the guide at the vicinity of the lens. CONSTITUTION:The (x) shaft of the actuator in the progressive direction of the automobile, namely, the non-moving direction of the supporting member is arranged to come. Since an instrument panel 8, in which a CD player will be loaded in the automobile, is generally vibrated at the rate of a backward and forward direction 2 and a right and left direction 1 in the upward and downward direction 4, when the panel is hung by a hanging belt 13 from a right shoulder 9 of the human being, approximately 1/5 in the upper and lower direction comes to be the acceleration in the backward and forward direction. A lens actuator is made so as to obtain the free action in the autofocus direction and the tracking direction, and for the vibration, the relative acceleration with the disk in the (y) direction of the actuator comes to be 1-3G and it can be made into at least 1/10 or below in the (x) direction.
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