Driving apparatus, lens driving apparatus and imag

专利名称：Driving apparatus, lens driving apparatus

and image pickup apparatus

发明人：Onozuka, Haruo申请号：EP08004485.2申请日：20080311公开号：EP1981161A2公开日：20081015

摘要：A driving apparatus comprises an actuator, the actuator comprising anelectromechanical conversion element and a driving shaft attached to the

electromechanical conversion element, wherein the driving apparatus expands andcontracts-the electromechanical conversion element by applying a driving signal to theelectromechanical conversion element and reciprocally moves the driving shaft inaccordance with expansion and contraction movement of the electromechanical

conversion element so as to move a driven member frictionally engaged with the drivingshaft, and wherein the driving signal is a pulse signal, and a time period corresponding toa half wavelength of a damping vibration displacement of a lowest resonance frequencyin the actuator is set as a shorter output time among a high output time period and a lowoutput time period of the driving signal.

申请人：Fujinon Corporation

地址：1-324 Uetake-cho, Kita-ku Saitama-shi, Saitama JP

国籍：JP

代理机构：Höhfeld, Jochen

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