| 摘要 |
Disclosed is an oscillating device such as an optical deflector, by which a resonance frequency of an oscillating system can be adjusted and controlled without the provision of any additional heating element, wherein, in one preferred embodiment, the oscillating device includes an oscillating system, a stationary member for holding the oscillating system, and a driving system having a coil, for driving the oscillating system, wherein the oscillating system includes a movable element, a supporting member and a resiliently supporting portion, wherein the movable element is resiliently supported relative to the supporting member by the resiliently supporting portion for oscillating motion about a predetermined oscillation axis, wherein the supporting member is fixed to the stationary member, and wherein the amount of heat generation of the coil can be controlled by applying, to the coil, a heating electric current of a frequency different from the natural oscillation mode frequency of the oscillating system, whereby the temperature of the oscillating system can be controlled.
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