发明申请
- 专利标题： Zoom lens and imaging apparatus
- 专利标题（中）： 变焦镜头和成像设备
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申请号： US12801615申请日： 2010-06-17
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公开(公告)号： US20110007396A1公开(公告)日： 2011-01-13
- 发明人: Mitsuhiro Suzaki , Shinichi Arita , Takuya Anzawa
- 申请人： Mitsuhiro Suzaki , Shinichi Arita , Takuya Anzawa
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JP2009-164570 20090713
- 主分类号： G02B27/64
- IPC分类号： G02B27/64 ; G02B15/14
摘要：
A zoom lens includes, in order from an object side to an image side: a first lens group that has a positive refractive power and remains stationary in a direction of an optical axis; a second lens group that has a negative refractive power and is movable on the optical axis so as to perform a zoom operation; a third lens group that has a positive refractive power and remains stationary in the direction of the optical axis during zooming and focusing; a fourth lens group that has a positive refractive power and is movable on the optical axis so as to correct fluctuation in imaging position and correct change in imaging position caused by change in object distance; and a fifth lens group that has a positive refractive power and remains stationary in the direction of the optical axis.
公开/授权文献
- US08154801B2 Zoom lens and imaging apparatus 公开/授权日：2012-04-10