发明授权
- 专利标题： Zoom lens drive system for lens shutter type of camera
- 专利标题（中）： 变焦镜头驱动系统用于镜头快门式相机
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申请号： US487156申请日： 1995-06-07
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公开(公告)号： US5598240A公开(公告)日： 1997-01-28
- 发明人: Keisuke Haraguchi , Shinsuke Kohmoto , Takeo Kobayashi , Shigeru Kondoh , Hideki Ohkubo , Norio Numako , Saburo Sugawara
- 申请人： Keisuke Haraguchi , Shinsuke Kohmoto , Takeo Kobayashi , Shigeru Kondoh , Hideki Ohkubo , Norio Numako , Saburo Sugawara
- 申请人地址： JPX Tokyo
- 专利权人： Asahi Kogaku Kogyo Kabushiki Kaisha
- 当前专利权人： Asahi Kogaku Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX61-108278 19860512; JPX61-143964 19860919; JPX61-181723 19861126; JPX61-15853 19870205
- 主分类号： G02B7/10
- IPC分类号： G02B7/10 ; G02B23/14 ; G03B13/12 ; G03B17/00 ; G03B17/04 ; G03B5/00
摘要：
A zoom lens for a camera having a between-the-lens shutter includes a motor for moving the lens along an optical axis in forward and rearward directions. A switch is operable by an operator to control operation of the motor for moving the lens from an initial position on the axis to a final stationary position that establishes the focal length of the lens. Control apparatus is responsive to the setting of the switch for operating the motor such that movement of the lens from its initial position to its final position always ends after the lens travels to its final position in a predetermined direction.
公开/授权文献
- US5004251A Sulky apparatus attachable to a self-propelled power mower 公开/授权日：1991-04-02
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