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Miniature auto focus piezo actuator system

  • US 7,083,096 B2
  • Filed: 10/16/2003
  • Issued: 08/01/2006
  • Est. Priority Date: 12/18/2002
  • Status: Expired due to Fees
First Claim
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1. An imaging apparatus comprising:

  • an image sensor for producing electronic signals corresponding to optical information representative of a target image;

    a lens assembly for focusing the target image on the image sensor; and

    at least two piezo actuator assemblies configured in opposing directions and in contact with a longitudinal flange extending from the lens assembly such that movement of tips of the piezo actuator assemblies causes movement of the lens assembly via the flange, wherein the at least two piezo actuator assemblies are configured to each receive a control signal for causing movement of the tips.

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