Lens driving device

Lens driving device

  • CN 101,025,466 B
  • Filed: 02/16/2007
  • Issued: 12/14/2011
  • Est. Priority Date: 02/20/2006
  • Status: Active Grant
First Claim
Patent Images

1. lens driver comprises:

  • Lens barrel comprises lens mount and extension, and lens mount is used for supporting at least one lens therein, and the extension extends out from lens mount;

    Piezoelectric vibrator, comprise piezoelectrics and friction member, piezoelectrics take place flexible and crooked in response to the power that applies, friction member is arranged on the front end of piezoelectrics and contacts with the extension of lens barrel, and piezoelectric vibrator provides and drives the necessary driving power of lens barrel;

    Preload member, has free end, this free end and the rear end of piezoelectrics flexibly contact with the compressing contact condition between the friction member of the extension that keeps lens barrel and piezoelectric vibrator, and preloading member provides and oppress piezoelectric vibrator to prop up the elastic force of extension;

    Targeting part is used for moving along optical axis direction guiding lens barrel.

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