| 摘要 |
PROBLEM TO BE SOLVED: To provide an objective lens driving device reducing pitching resonance or yawing resonance even when there is tolerance of a component such as a magnet, assembling error or variations of magnetic characteristics of each magnet. SOLUTION: The objective lens driving device 11 includes a lens holder 15 on which objective lenses 13 and 14 are mounted, and a movable part 20 having coil blocks 16L and 16R where a focus coil and a tracking coil are integrally formed. The movable part 20 have the coil blocks 16L and 16R arranged so that the load points of the focus and tracking coils are positioned on a plane passing through the overall gravitational center position CG and orthogonal to a tangential direction. COPYRIGHT: (C)2009,JPO&INPIT
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