专利名称：Lens apparatus 发明人：Akiike, Michihiro 申请号：EP98304900.8
申请日：19980622
公开号：EP0887678B1
tungsten
公开日：
r20050817
cinema怎么读专利内容由知识产权出版社提供葡萄的英语
摘要：The prent invention relates to a lens apparatus employed in a video camera. The prent invention provides a lens apparatus, suited to manipulation of an operator, using a vibratory wave motor as a driving source for driving a photographing lens of the lens apparatus, wherein on the occasion of change of a driving direction, application of cyclic signals to a piezoelectric device of the motor is suspended and thereafter application of cyclic signals to the piezoelectric device is restarted.
pxp
申请人：CANON KK
先生英文
脾气大>长裤的英文地址：JP
independent的名词国籍：JP
代理机构：Beresford, Keith Denis Lewis
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