Invention Grant
US08508828B2 Magnetic voice-coil shutter drive actuation system 有权
磁力音圈快门驱动驱动系统

  • Patent Title: Magnetic voice-coil shutter drive actuation system
  • Patent Title (中): 磁力音圈快门驱动驱动系统
  • Application No.: US12312563
    Application Date: 2007-11-15
  • Publication No.: US08508828B2
    Publication Date: 2013-08-13
  • Inventor: David W. Durfee
  • Applicant: David W. Durfee
  • Applicant Address: US NY Rochester
  • Assignee: CVI Laser, LLC
  • Current Assignee: CVI Laser, LLC
  • Current Assignee Address: US NY Rochester
  • Agent Steven R. Scott
  • International Application: PCT/US2007/024006 WO 20071115
  • International Announcement: WO2008/060600 WO 20080522
  • Main IPC: G02B26/02
  • IPC: G02B26/02
Magnetic voice-coil shutter drive actuation system
Abstract:
This magnetic voice-coil shutter drive actuation system for an optical shutter having an aperture with at least one shutter blade includes an actuator operating to open/close the shutter blade when moved in opposing directions, and a moveable element that operates said actuator and can be a moveable voice coil or a moveable permanent magnet. The voice coil is activatable to generate an electromagnetic flux in opposing polar orientations to react against the magnetic flux produced by the permanent magnet. The moveable element can be located in a position peripheral of the aperture and not surrounding the aperture, or in a position peripheral of the aperture and surrounding the aperture. The magnetic flux produced by the permanent magnet and the electromagnetic flux produced by the voice coil define magnetic axes that are parallel to each other and to a central axis for the aperture.
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