Patent ID: 7911160
Filing Date: 2011-03-22
Classification: G02B,H04N

Abstract:
1. An oscillation device comprising: an oscillation system including a torsion spring which defines a torsion axis, and an oscillator connected to the torsion spring and movable about the torsion axis; a supporting unit configured to support the oscillation system; a drive unit configured to drive the oscillation system so that the oscillator is oscillated in a manner expressed by an equation containing a periodic function; and a drive control unit configured to supply a drive signal to the drive unit, wherein the drive control unit includes a drive-signal generating circuit, the drive-signal generating circuit including the drive control unit being configured to generate the drive signal using the address generator and the values stored in the trigonometric-function table, and wherein a drive frequency of the drive signal is adjustable by adjusting the predetermined variable.