Objective lens driving device settled within a height limit of an optical pickup unit

摘要

In an objective lens driving device (100) of a symmetry type having an object lens (2), an objective lens holder (1) for holding the objective lens, and a damper base (10) apart from the objective lens holder in a tangential direction (Tg), a suspension member elastically supports the objective lens holder with respect to the damper base. The suspension member (11) consists of four suspension wires (11) disposed on both sides of the damper base (10) and the objective lens holder (1). The suspension member (11) inclines upward in a direction from the damper base to the objective lens holder by a predetermined angle (¸) in an inactive state.