发明授权
- 专利标题: Lens drive mechanism using an electro-mechanical transducer
- 专利标题(中): 使用机电换能器的镜头驱动机构
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申请号: US499002申请日: 1995-07-06
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公开(公告)号: US5633763A公开(公告)日: 1997-05-27
- 发明人: Shinichi Suzuki , Tetsuro Kanbara , Minoru Kuwana , Hitoshi Hagimori , Junji Hashimura
- 申请人: Shinichi Suzuki , Tetsuro Kanbara , Minoru Kuwana , Hitoshi Hagimori , Junji Hashimura
- 申请人地址: JPX Osaka
- 专利权人: Minolta Co., Ltd.
- 当前专利权人: Minolta Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX6-179741 19940708
- 主分类号: G02B7/04
- IPC分类号: G02B7/04 ; G02B7/10 ; H02N2/00 ; G02B7/02
摘要:
An apparatus for driving a collapsible lens mount having several telescoping segments includes, for each movable segment, a transducer that expands and contracts responsive to a wave pulse and a drive shaft coupled to the transducer. By varying the wave pulse conditions, the expansion and contraction are made to occur at different rates. A coupling member on each segment frictionally engages the drive shaft and transmits movement of the drive shaft during relatively slow drive shaft movements to the lens segment. The apparatus may also include a lens hood driven by the transducer and drive shaft apparatus of the invention.
公开/授权文献
- US5067923A Training system for spinning objects by hand 公开/授权日:1991-11-26