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BLADE DRIVING DEVICE, IMAGING DEVICE AND ACTUATOR COMPRISING THE BLADE DRIVING DEVICE

  • US 20190317382A1
  • Filed: 11/24/2017
  • Published: 10/17/2019
  • Est. Priority Date: 12/15/2016
  • Status: Abandoned Application
First Claim
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1. A blade driving device, comprising:

  • a base plate comprising an opening for an optical path;

    a first blade and a second blade, at different locations on the base plate, and that each rotate to open/close the opening;

    a first magnet secured around an axis of rotation of the first blade;

    a second magnet secured around an axis of rotation of the second blade;

    a yoke secured on the base plate; and

    a first coil and a second coil coiled on the yoke, wherein;

    the yoke comprises;

    a first magnetic pole portion that is adjacent to the first magnet,a second magnetic pole portion that is adjacent to the second magnet, anda connecting portion for connecting the first magnetic pole portion and the second magnetic pole portion; and

    wherein the first magnetic pole portion and the second magnetic pole portion each comprise;

    an adjacent piece that is adjacent to the corresponding magnet, andan extending portion that is continuous with the adjacent piece and that is provided extending in a direction that is perpendicular to the blade supporting face of the base plate.

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