| 摘要 |
PROBLEM TO BE SOLVED: To provide an elastic supporting member in which extending and contracting vibration along the axial line direction (an approximately X axis direction) of the member in an optical head actuator is reduced and the constitution is provided to reduce the deformation by a bending moment M during the movement in focusing and tracking directions of a lens holder. SOLUTION: Two pairs of elastic supporting members 31 are provided to hang and hold a lens holder 4, that holds an objective lens 5, against a supporting body 1A. The members 31 are practically extended from the body 1A in the direction that is orthogonal to both tracking and focusing directions. Bended sections are provided at approximate center sections between the body 1A and the holder 4.
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