Patent ID: 9268129
Filing Date: 2016-02-23
CPC Classification: B81B,B81C,G02B

Claim Text:
1. A driving calibration apparatus of an electrostatic MEMS scanning mirror comprising a plane mirror serving to guide a laser beam to project on a projected surface, the driving calibration apparatus comprising: a voltage setting unit, serving to set a plurality of different reference voltages to drive the plane mirror to swing; a image capture unit, serving to sense a plurality of projection positions on the projected surface corresponding to the plurality of reference voltages that the laser beam projects to; and a data processing unit, serving to establish a driving lookup table according to the reference voltages and the corresponding projection positions and determine calibrated driving voltages corresponding to a plurality of ideal projection positions according to the driving lookup table, wherein the voltage setting unit drives the plane mirror to swing according to the calibrated driving voltages.