| 摘要 |
PROBLEM TO BE SOLVED: To provide an objective lens control driving device for introducing the intrinsic primary resonant frequency based on the shape of a yoke to a lower band than heretofore and to provide an optical pickup device and an optical recording/reproducing device having stable focusing and tracking servo operation even when the oscillation of the primary resonant frequency is transferred to an optical recording medium. SOLUTION: In an objective lens control driving device controlling/driving an objective lens in the focusing and tracking directions by means of a magnetic circuit composed of a yoke 13 composed of a base part 13a and a pair of erected parts 13b, bending the prescribed places of the base part 13a at right angle and parallel with each other, and a magnet 14 attached to at least either one surface of the confronting surfaces of a pair of the erected parts 13b, by making the widths, in the tracking direction of the base part 13a and the erected part 13b of the yoke 13, the same, the intrinsic primary resonant frequency based on the shape of the yoke is introduced to a lower band than heretofore. |
