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Automatic focusing mechanism

  • US 20080062301A1
  • Filed: 11/08/2007
  • Published: 03/13/2008
  • Est. Priority Date: 05/11/2005
  • Status: Active Grant
First Claim
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1. An automatic focusing mechanism comprising:

  • a lens group arranged along an optical axis;

    an image sensor arranged along the optical axis;

    an electromagnetic driver for inducing an electromagnetic force to drive the image sensor to move along the optical axis; and

    a spacing restrictor for limiting an movement of the image sensor along the optical axis.

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