发明名称 |
Driving apparatus, lens driving apparatus and image pickup apparatus |
摘要 |
<p>A driving apparatus comprises an actuator, the actuator comprising an electromechanical conversion element and a driving shaft attached to the electromechanical conversion element, wherein the driving apparatus expands and contracts the electromechanical conversion element by applying a driving signal to the electromechanical conversion element and reciprocally moves the driving shaft in accordance with expansion and contraction movement of the electromechanical conversion element so as to move a driven member frictionally engaged with the driving shaft, and wherein the driving signal is a pulse signal, and half of a time period corresponding to a reciprocal of a lowest resonance frequency in the actuator is set as a shorter output time among a high output time period and a low output time period of the drive signal.</p> |
申请公布号 |
EP1976035(A2) |
申请公布日期 |
2008.10.01 |
申请号 |
EP20080004486 |
申请日期 |
2008.03.11 |
申请人 |
FUJIFILM CORPORATION |
发明人 |
ONOZUKA, HARUO;ICHIMIYA, TAKESHI;TOKUMIYA, MOTOYOSHI |
分类号 |
H01L41/09;H02N2/06 |
主分类号 |
H01L41/09 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|