Abstract: An apparatus is disclosed for driving a lens for use with a disk player to avoid the swing movement of a movable member without the degradation of the sensitivity of an actuator. The apparatus includes magnetic flux producing elements for providing magnetic flux to tracking coils fixed to a lens holder parallel to a focusing direction. The magnetic flux producing elements provide a first magnetic flux to a first area of the coil and a second magnetic flux to a second area of the coil. The first magnetic flux has a direction opposite to that of the second magnetic flux. At least a portion of a boundary surface between the first and the second areas is inclined from a focus direction of the lens.

Abstract: A substrate (25) and a lens holder (26) for supporting an objective lens (52) of the lens driving apparatus are integrally molded by synthetic resin using a predetermined mold. In the case of the integral molding, while long lengths of projection portions (31, 32, 33, 34) are integrally molded in four corners of the substrate (25), elastic wires (27, 28, 29, 30) are buried in the rear ends (47, 48, 49, 50) of the substrate (25) and are supported. By filling gaps (39, 40, 41, 42) defined by the projection portions (31, 32, 33, 34) and the substrate (25) by this integral molding with ultraviolet cure resins (43, 44, 45, 46) to cure the resins, the elastic wires (27, 28, 29, 30) are buried in the ultraviolet cure resins (43, 44, 45, 46).

Abstract: An apparatus is disclosed for driving a lens for use with a disk player to avoid the swing movement of a movable member without the degradation of the sensitivity of an actuator. The apparatus includes magnetic flux producing elements for providing magnetic flux to tracking coils fixed to a lens holder parallel to a focusing direction. The magnetic flux producing elements provide a first magnetic flux to a first area of the coil and a second magnetic flux to a second area of the coil. The first magnetic flux has a direction opposite to that of the second magnetic flux. At least a portion of a boundary surface between the first and the second areas is inclined from a focus direction of the lens.

Abstract: A lens driving apparatus for a disk player capable of easily approaching to the innermost circumference of a disk and realizing a reduction in size and weight thereof, in which: an actuator section where a movable portion including printed board coils fixed to the respective side surfaces of a lens holder containing an objective lens is movably supported by outer circumferential side wire-form elastic members and inner circumferential side wire-form elastic members fixed to an actuator base, and a suspension base including a pair of yokes to which a pair of magnets disposed so as to be opposed to each other with a predetermined magnetic space therebetween are fixed and standing portions are included; and a width Wi of each of the inner circumferential side wire-form elastic members is set to be greater than a width Wo of each of the outer circumferential side wire-form elastic members.