Optical reading and writing system

An optical reading and/or writing system used with an optical disk, comprising:

• a slider;
• an actuator assembly pivotable in a radial direction of the optical disk, supporting the slider to enable the slider to move over a recording surface of the optical disk;
• and
• an optical pickup focusing a light beam to form a light spot on the recording surface of the optical disk, the optical pickup comprising
• a light source emitting the light beam,
• an optical path changing unit arranged on an optical path between the light source and the recording surface, changing the traveling path of the incident beam,
• an objective lens mounted onto the slider, focusing the light beam from the optical path changing unit onto the recording surface,
• a photodetector receiving the light beam reflected from the recording surface and passed through the objective lens and the optical path changing unit, and
• at least one optical fiber connecting at least the light source and the optical path changing unit, transferring the emitted light beam to the optical path changing unit,
• wherein an optical loss between the light source and the optical path changing unit is suppressed.

An optical system used with an optical disk, comprising:

• an actuator arm pivotable in a radial direction of the optical disk;
• a load beam supported by the actuator arm and having a first end movable in the radial direction relative to the movement of the actuator arm;
• and
• a slide element having an objective lens and attached to the load beam, the slide element movable over a recording surface of the optical disk.

An optical system used with an optical disk, comprising:

• an actuator assembly pivotable in a radial direction of the optical disk, and supporting a slider movable over a recording surface of the optical disk;
• an optical pickup focusing a light beam onto the recording surface of the optical disk, comprising
• a light source mounted on the actuator arm assembly, generating the light beam,
• a photodetector mounted on the actuator arm assembly,
• an optical path changing unit, mounted on the actuator arm assembly, directing the light beam from the light source toward the recording surface of the optical disk, and the light beam reflected from the recording surface of the optical disk toward the photodetector, and
• an optical fiber connecting the light source and the optical path changing unit, transferring the light beam from the light source to the optical path changing unit.

An optical system used with an optical disk, comprising:

• an actuator arm assembly pivotable in a radial direction of the optical disk, and supporting a slider movable over a recording surface of the optical disk;
• an optical pickup focusing a light beam onto the recording surface of the optical disk, comprising
• a light source mounted on the actuator arm assembly, generating the light beam,
• a photodetector mounted on the actuator arm assembly,
• an optical path changing unit mounted on the actuator arm assembly, directing the light beam from the light source toward the recording surface of the optical disk, and the light beam reflected from the recording surface of the optical disk toward the photodetector, and
• an objective lens mounted on the slider, focusing the light beam from the optical path changing unit to the recording surface of the optical disk;
• wherein the objective lens, the optical path changing unit and the photodetector are aligned in a direction perpendicular to the recording surface of the optical disk.

An optical system used with an optical disk, comprising:

• an actuator arm assembly pivotable in a radial direction of the optical disk, and supporting a slider movable over a recording surface of the optical disk;
• an optical pickup focusing a light beam onto the recording surface of the optical disk, comprising
• a light source mounted on the actuator arm assembly, generating the light beam,
• a photodetector mounted on the actuator arm assembly,
• an optical path changing unit mounted on the actuator arm assembly, directing the light beam from the light source toward the recording surface of the optical disk, and the light beam reflected from the recording surface of the optical disk toward the photodetector, and
• an objective lens mounted on the slider, focusing the light beam from the optical path changing unit to the recording surface of the optical disk;
• wherein the objective lens, the optical path changing unit and the photodetector are adjacent to each other at a first end of the sliding element, and the first ends of the load beam and the actuator arm.