Magnetic objective lens driving apparatus with pivot
Objective lens driving device
Optical head apparatus for recording and reproducing data on a reording medium
Device for driving optical parts of an optical pickup Patent #: 4861138
ApplicationNo. 357314 filed on 05/25/1989
US Classes:359/814, Electromagnetic motive power369/44.22Lens or mirror floats, (e.g., magnetic field support or lens/mirror can freely float and pivot about its own axis, etc.)
ExaminersPrimary: Arnold, Bruce Y.
Assistant: Ben, Loha
Attorney, Agent or Firm
International ClassG02B 007/02
Foreign Application Priority Data1988-06-03 JP
AbstractAn objective lens driving device is disclosed, in which the objective lens is moved in the direction of the optical axis thereof by a thrusting force generated between a magnet for focusing and a driving coil for focusing to effect focusing and it is moved in the direction perpendicular to that of the optical axis thereof by another thrusting force generated between a magnet for tracking and a driving coil for tracking to effect tracking.