Abstract: An information reading device is used as an optical pickup in a compact disk player or the like for playing back an optical disk. The optical pickup has an adjusting fulcrum about which a base supported on a base mount can be turned with respect to the base mount, a first adjusting screw for angularly adjusting the position of the base with respect to the base mount in a tangential direction of the disk, and a second adjusting screw for angularly adjusting the position of the base with respect to the base mount in a radial direction of the disk. The adjusting fulcrum and the first and second adjusting screws are positioned in a particular positional relationship to prevent any crosstalk from being produced when the base is adjusted in the tangential or radial direction after the base has been adjusted in the radial or tangential direction.

Abstract: An optical pickup device for applying controlled light to a track of an optical disc. Light orientation is controlled by changing the angular orientation of an objective lens mounted on a holder. The holder is disposed above an actuator base and is supported in a cantilevered manner by a suspension member fixed to the actuator base. The actuator base is mounted on a pickup body movable in a tracking direction of the disc. The holder is integrally coupled with a central portion of a yoke member, so that the yoke is also movable. The yoke member has inverted U-shaped portions provided symmetrically with respect to the central portion. Further, a pair of magnets are provided each being fixed to the outer surface of the central portion, i.e., a first inner surface of the inverted U-shaped portion, and a pair of coil members are fixed to the base. Each of the coil members is positioned within each of mangetic gaps defined by each free end of the inverted U-shaped portion and each of the magnets.