OBJECTIVE LENS DRIVING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an objective lens driving device that the leakage magnetic flux of an actuator to magnetic heads is reduced without reducing the moving amount in the vertical direction of an objective lens driving device or without enlarging the size of the objective lens driving device. SOLUTION: The width of a magnetic shielding plate 13 at the positional part being roughly upper side of the magnet 10b arranged at a side nearer to an objective lens between one pair of magnets 10a, 10b is made wider than that of the magnet 10b and the width of the magnetic shielding plate 13 at the positional part being roughly upper side of electric wiring parts 12 electrically connecting a focusing coil 6 or a tracking coil 7 to the main body of a device is made narrower than that of the electric wiring parts 12.