发明授权
- 专利标题： Zoom lens barrel including a mechanism for moving lens groups
- 专利标题（中）： 变焦镜头镜头包括一个用于移动镜头组的机构
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申请号： US782665申请日： 1997-01-15
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公开(公告)号： US5748386A公开(公告)日： 1998-05-05
- 发明人: Haruki Nakayama , Yuichi Honda , Toshio Imaizumi
- 申请人： Haruki Nakayama , Yuichi Honda , Toshio Imaizumi
- 申请人地址： JPX Tokyo
- 专利权人： Konica Corporation
- 当前专利权人： Konica Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX5-104456 19930430
- 主分类号： G02B7/04
- IPC分类号： G02B7/04 ; G02B7/08 ; G02B7/10 ; G02B15/16 ; G03B5/00 ; G02B15/14
摘要：
A zoom lens barrel in which a zoom lens is switched to a plurality of focal lengths by a moving member by which a plurality of lens groups are moved in the direction of optical axis. After a desired focal length has been selected, a focusing operation is conducted by the moving member. At least two lens groups, which are moved for switching focal lengths, are moved while a distance between lens groups is being changed so that the focusing operation can be conducted.
公开/授权文献
- US5124893A Screw driver having illuminating means mounted thereto 公开/授权日：1992-06-23
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