An optical pickup comprises a slide member displaced between an inner periphery of an information recording medium and an outer periphery thereof, a laser-beam receiving and emitting device comprised of an emitting unit for irradiating the information recording medium with a laser beam and a receiving unit for receiving therein a laser beam reflected from the information recording medium, a first laser-beam receiving and emitting device holding means rotated so as to approximately linearly move with a position different from an optical axis of the laser beam as a fulcrum to thereby position and hold the laser-beam receiving and emitting device, and a second laser-beam receiving and emitting device holding means rotated with the optical axis thereof as a fulcrum to thereby position and hold the laser-beam receiving and emitting device. According to the above construction the use of, two types of slide members become unnecessary and the position of the slide member can be easily adjusted.
In order to fix a laser diode 12 to an optical base 11, a plurality of threaded pins 15 are at first fixed to the optical base by the use of, for example, an anaerobic adhesive. Then, the laser diode is faced to the optical base in an area between the threaded pins. The laser diode is adjusted in position and angle with respect to the optical base by, for example, 5 axes 3D adjustment. Thereafter, the laser diode is fixed to the threaded pins by the use of solder pieces 16.
Disclosed herein is an optical read and write apparatus. The optical read and write apparatus includes a deck base, a pickup base, a transfer guide and one or more tension springs. In the deck base, an opening is formed in the center portion thereof, a main shaft and a secondary shaft are disposed at both sides of the opening, and a turntable is mounted on one side thereof. In the pickup base, an object lens is provided in the center portion thereof, a guide member having a guide groove fitted around the secondary shaft is formed in the rear portion thereof, and an adjusting screw is extended from the front thereof. In the transfer guide, a connection hole is formed to receive the adjusting screw and to allow the transfer guide to be joined to the pickup base by an adjusting nut and a guide hole is formed to be fitted around the main shaft. The tension springs are positioned between the pickup base and the transfer guide to elastically press the pickup base.
An optical head, in which a spring stopper rib, as formed in a slide base, includes a post portion protruding from the upper face of the slide base, and a spring stopper portion for stopping a spring, and in which the spring receiving portion of an actuator has a recess formed for arranging the spring.
Disclosed herein is an optical storage device having an objective lens actuator for moving an objective lens in a focusing direction. The objective lens actuator includes an actuator base fixed to a carriage movable in the radial direction of an optical disk, a lens holder for holding the objective lens, and a supporting mechanism for elastically supporting the lens holder to the actuator base. The actuator base has an elongated hole extending in the radial direction of the optical disk. A relative position between the actuator base and the carriage is adjusted so that the tilt of the optical axis of the objective lens in the radial direction of the optical disk occurring in displacing the lens holder in the focusing direction is minimized, and thereafter the actuator base is fixed to the carriage by means of screws.
