| 摘要 |
PROBLEM TO BE SOLVED: To provide an objective lens driving device capable of absorbing an assembly error and a component error and reducing a tilt when a movable part is moved by means of after assembly adjustment without severely controlling the assembly error and the component error, and to. SOLUTION: The distribution of magnetic flux density of a magnetic circuit is varied by mounting a magnetic body 17 on a yoke 7b which forms, together with a driving magnet 6b, the magnetic circuit. The deviation between a driving force center and a supporting center, which has arisen due to dispersion in assembling the objective lens driving device, is adjusted. Accordingly, it is constituted so that the tilt of an objective lens is reduced when the movable part is moved.
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