Patent ID: 7542200
Filing Date: 2009-06-02
Classification: B41J,G02B

Abstract:
1. An agile beam steering mirror system comprising: an agile beam steering assembly, said assembly comprising: a capacitive sensing circuit for producing an output signal representative of the relative size of said gap; a voltage supply for providing a driving voltage having a desired waveform to said laminated piezoelectric bending actuator, said waveform determining the rotation of said distal end of said laminated piezoelectric bending actuator, and hence the position of said mirror structure relative to said substrate; and a microcontroller for controlling said waveform provided to said laminated piezoelectric bending actuator based in part on said output signal of said capacitive sensing circuit; wherein said agile beam steering mirror system is a portion of a ROS system, and further wherein said waveform provided to said laminated piezoelectric bending actuator is based in part on measured scan line error in said ROS system.