Invention Grant
- Patent Title: Zoom lens and imaging apparatus
- Patent Title (中): 变焦镜头和成像设备
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Application No.: US13137769Application Date: 2011-09-12
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Publication No.: US08804243B2Publication Date: 2014-08-12
- Inventor: Takeshi Hatakeyama
- Applicant: Takeshi Hatakeyama
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2010-236619 20101021
- Main IPC: G02B27/64
- IPC: G02B27/64 ; G02B15/14 ; G02B15/00

Abstract:
Provided is a zoom lens that has a plurality of lens groups and performs zooming by changing spaces between the plurality of lens groups. A final lens group closest to an image side includes, in order from an object side to an image side: a first partial lens group that has a negative refractive power; a second partial lens group that has a positive refractive power; and a third partial lens group that has a positive refractive power. Image blur is corrected by shifting the second partial lens group in a direction substantially perpendicular to an optical axis. Assuming that a focal length of the first partial lens group is fGF, a focal length of the second partial lens group is fGS, and a focal length of a whole lens system of the lens groups in a telephoto end state is ft, the following expressions are satisfied: −0.24
Public/Granted literature
- US20120099202A1 Zoom lens and imaging apparatus Public/Granted day:2012-04-26
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