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Continuously variable analog micro-mirror device

  • US 6,843,576 B2
  • Filed: 10/01/2003
  • Issued: 01/18/2005
  • Est. Priority Date: 10/28/2002
  • Status: Expired due to Fees
First Claim
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1. A method of using a micro-mirror device having a reflective element, a pair of electrodes spaced from the reflective element, and a dielectric liquid disposed at least between the reflective element and the pair of electrodes, said method comprising the steps of:

  • electrically coupling to the pair of electrodes an operational amplifier having an output for coupling to at least one of the pair of electrodes and having inverting and non-inverting inputs;

    electrically coupling the reflective element to the inverting input of the operational amplifier to provide feedback; and

    applying an analog positioning signal to the non-inverting input of the operational amplifier, whereby the reflective element is positioned at a selected position within a continuous range between a first position and a second position in response to the applied analog positioning signal.

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