Compact wide-angle optical beam steering assemblies and methods thereof
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United States of America Patent
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Jun 28, 2016
Grant Date -
Aug 6, 2015
app pub date -
Feb 3, 2014
filing date -
Feb 3, 2014
priority date (Note) -
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Abstract
A compact wide-angle optical beam steering device includes a first rotor with a first mirror surface and a second rotor with a second mirror surface. The rotors are arranged to rotate about an axis in response to frictionally coupled vibration motors. Drive circuits are coupled to the vibration motors and a control device is coupled to the drive circuits. The control device is configured to execute programmed instructions comprising generating and providing one or more driving signals to the vibration motors to drive the rotors to an angular position about the axes. A light source is positioned to emit a beam directed to the first mirror surface. The beam is reflected from the first mirror and contacts the second mirror. The second mirror is positioned to reflect the beam to exit the steering device at a pointing direction determined by the angular position of the mirrors.
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