Objective lens actuator for optical storage drive

Details Objective lens actuator for optical storage drive Objective lens actuator for optical storage drive

G - Physics

11

B

352/32.21

G11B 7/09 (2006.01) G11B 7/12 (2006.01)

Patent

CA 2036156

An objective lens actuator for an optical storage drive includes a torsion plate spring (11) which has a substantially L-shaped transverse cross section and is fixed, at its central portion, to an objective lens holder (12) and, at its opposite ends, to free ends of a pair of parallel spaced, cantilevered plate springs (14). The torsion plate spring (11) is caused to twist to displace the objective lens holder (12) and an objective lens (15) mount- ed thereon in the tracking direction. The parallel spaced plate springs (14) are caused to bend to displace the objec- tive lens holder (12) and the objective lens (15) in the focusing direction.

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