| 摘要 |
PROBLEM TO BE SOLVED: To rapidly suppress shaking of a movable body after stopping a seek operation. SOLUTION: The movable body 2 equipped with an objective lens 1 is oscillatably supported via an oscillating mechanism 9 by a pedestal 10, and magnets 7 and yokes 8 are arranged at prescribed intervals respectively, where focus coils 5 and tracking coils 6, fitted to the movable body 2 are interposed respectively. The oscillating mechanism 9 has a focusing oscillatory member 13 connected oscillatably in the focusing direction via plural parallel links 11 and hinge parts 12a and 12b to the pedestal 10 and a tracking oscillatory member 15 connected with its one end part 15b to the movable body 2 and capable of oscillating with its middle part 15a as a fulcrum in the tracking direction, whereas the other end part of the tracking oscillatory member 15 is attachably and detachably engaged with the focusing oscillatory member 13. |
