Optical pickup actuator driving method and apparatus therefor

  • US 6,785,065 B1
  • Filed: 02/06/2004
  • Issued: 08/31/2004
  • Est. Priority Date: 06/19/2001
  • Status: Active Grant
First Claim
Patent Images

1. An optical recording and/or reproducing apparatus for use with transferring information with respect to a recording medium, comprising:

  • a spindle motor rotating the recording medium;

    an optical pickup including an objective lens and an actuator which actuates the objective lens so as to transfer the information with respect to the recording medium; and

    a control unit driving the spindle motor and the optical pickup to transfer the information with respect to the recording medium and controlling the actuator of the optical pickup in the radial, track, tilt and focusing directions, wherein the actuator comprises;

    a bobbin movably arranged on a base of the actuator;

    at least one focus and tilt coil which drives the bobbin in the focus and the tilt directions and at least one track coil which drives the bobbin in the track direction arranged on each of opposite side surfaces of the bobbin;

    support members which move the bobbin and are provided to the other side surfaces of the bobbin, wherein the focus and tilt coils and the track coils are not arranged on the other side surfaces of the bobbin; and

    magnets arranged to face corresponding sides of the opposite side surfaces of the bobbin.

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