| 摘要 |
PROBLEM TO BE SOLVED: To provide an objective lens actuator which has the reduced number of components and is manufactured inexpensively. SOLUTION: The objective lens actuator includes a resin part 38 including: a pair of magnetic members arranging sections 41a, 41b; a pair of attenuation material filling sections 42a, 42b; and protrusion sections 44a, 44b for regulating the movement amounts of movable sections. The protrusions 44a, 44b are projected from cover sections 43a, 43b which cover the magnetic members arranging sections 41a, 41b from above. The attenuation material filling sections 42a, 42b comprises first grooves having openings at the upper side, and the resin part 38 is arranged in such a manner that no resin is overlapped with the protrusion sections 44a, 44b when plane-viewed in the vertical direction and also that no resin other than resin forming the cover sections 43a, 43b exists on the overlapped section of the cover sections 43a, 43b and magnetic member arranging sections 41a, 41b. COPYRIGHT: (C)2011,JPO&INPIT
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