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Resonant beam scanner with raster pinch compensation

  • US 6,924,476 B2
  • Filed: 10/27/2003
  • Issued: 08/02/2005
  • Est. Priority Date: 11/25/2002
  • Status: Expired
First Claim
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1. A resonant beam scanning system, comprising:

  • A beam generator operable to produce an electromagnetic beam, a first mechanically resonant beam director operable to scan the electromagnetic beam sinusoidally across a first axis at a first resonant frequency, a second beam director operable to simultaneously scan the electromagnetic beam in a second axis at a second frequency, a third mechanically resonant beam director operable to simultaneously scan the electromagnetic beam in the second axis, and control electronics circuit coupled to the three beam directors, the control electronics circuit operable to provide a signal to the third beam director comprised of a primary frequency and at least one higher order harmonic frequency.

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