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Optical switch controller and movable body controller

  • US 20080013143A1
  • Filed: 06/25/2007
  • Published: 01/17/2008
  • Est. Priority Date: 09/03/2003
  • Status: Active Grant
First Claim
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1. An optical switch controller performing angle control of a mirror upon using electrostatic capacity changed corresponding to angular positions, comprising:

  • a mirror moving at angular position corresponding to one or more values of driving voltages of driving signals based on said driving signals having a plus and a minus driving voltage;

    electrostatic capacity detection means for detecting a first electrostatic capacity obtained due to the driving signal of the plus driving voltage and a second electrostatic capacity obtained due to the driving signal of the minus driving voltage, when providing the driving signal of the plus driving voltage and the driving signal of the minus driving voltage for said mirror respectively; and

    processing means for correcting the driving signals to change the angular position of said mirror at the time of angular position change, on the basis of said first electrostatic capacity and said second electrostatic capacity detected by said electrostatic capacity detection means.

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