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Objective lens driving device enabling speed-up of optical disk drive

  • US 20050146999A1
  • Filed: 08/30/2004
  • Published: 07/07/2005
  • Est. Priority Date: 11/26/2003
  • Status: Abandoned Application
First Claim
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1. An objective lens driving device comprising:

  • a lens holder being movable and holding an objective lens;

    coil devices disposed around said objective lens and held by said lens holder;

    main magnets disposed around said objective lens and applying driving forces to said coil devices according to energization to said coil devices; and

    auxiliary magnets each disposed each between adjacent ones of said coil devices and applying forces to said coil devices according to the energization to said coil devices for supplementing said driving forces.

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