| 摘要 |
PROBLEM TO BE SOLVED: To provide an actuator for pickup apparatus that improves quality of a pickup apparatus by reducing lens aberration even when a frequency of an electromagnetic drive mechanism becomes higher than a servo band and a lens holder resonates. SOLUTION: The actuator which moves the lens holder 4 held by an outer peripheral edge part 6A of an objective lens 6 using the electromagnetic drive mechanism, forms an adhesive layer 11 between the outer peripheral edge part 6A of the objective lens 6 and the lens holder 4, and the adhesive layer 11 is 0.1 mm thick or greater enough to absorb deflection even when the lens holder 4 deflects due to resonance. COPYRIGHT: (C)2009,JPO&INPIT
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