Patent ID: 6853608

Claim:
An optical pickup apparatus comprising: an objective lens; a lens holder that retains objective lens; a fixing member; four linear members having base ends supported by the fixing member and distal ends coupled to the lens holder; and a driving device that generates a magnetic force between the lens holder and the fixing member to resiliently bend the linear members to thereby drive the objective lens in at least one of a focusing direction and a tracking direction, wherein the four linear members have a generally identical configuration, at least one portion of each of the four linear members in a longitudinal direction thereof having a cross section that is squeezed and deformed in at least one of the focusing direction and the tracking direction, and wherein each of the linear members has end sections each having a uniform circular cross section, and wherein each of the four linear members has a deformed portion with a generally rectangular cross section having a length in the focusing direction greater than a diameter of the circular cross section.