Patent ID: 7085030

Claim:
An optical scanner driving apparatus comprising: a moving plate having a reflection plane and comprising a driving coil integrally formed therewith; a magnetic field generating section arranged in a vicinity of said moving plate; a driving circuit configured to supply a driving signal to said driving coil, said moving plate performing a torsional vibration by said driving signal; first output acquiring means for acquiring an output containing an electromotive force generated in said driving coil by an electromagnetic induction on the basis of the magnetic field generated by said magnetic field generating section and the torsional vibration of said driving coil; second output acquiring means comprising an impedance element having a corresponding impedance to an impedance of said driving coil, for acquiring an output generated by said impedance element by supplying said driving signal to said impedance element; and a control section configured to control a state of the torsional vibration of said moving plate according to the electromotive force generated in said driving coil on the basis of the output acquired by said first output acquiring means and the output acquired by said second output acquiring means.