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Oscillating device

  • US 7,148,591 B2
  • Filed: 08/30/2005
  • Issued: 12/12/2006
  • Est. Priority Date: 08/21/2002
  • Status: Expired due to Fees
First Claim
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1. An oscillating device comprising a movable plate, an elastic supporting part connected to the movable plate, a substrate connected to the elastic supporting part, and first and second coils, wherein the first and second coils are disposed at locations to hold the substrate therebetween, the movable plate oscillates about the elastic supporting part by the action of a magnetic field generated by the first and second coils, and a permanent magnet is disposed on the movable plate.

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