发明授权
- 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: US13903316申请日: 2013-05-28
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公开(公告)号: US08824062B2公开(公告)日: 2014-09-02
- 发明人: Toshihiro Aoi , Shinkichi Ikeda
- 申请人: FUJIFILM Corporation
- 申请人地址: JP Tokyo
- 专利权人: FUJIFILM Corporation
- 当前专利权人: FUJIFILM Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Young & Thompson
- 优先权: JP2010-280516 20101216
- 主分类号: G02B15/14
- IPC分类号: G02B15/14 ; G02B13/18 ; G02B3/02 ; G02B15/17 ; G02B15/26
摘要:
A zoom lens consists of positive first lens group, which is fixed during changing magnification, negative second lens group, which is moved during changing magnification, negative third lens group for correcting a fluctuation of an image plane caused by changing magnification, and positive fourth lens group, which is fixed during changing magnification, which are in this order from an object side. The first lens group consists of negative lens and positive lens group consisting of three or less positive lenses in this order from the object side. Each of the negative lens and at least one of the positive lens or lenses in the first lens group has at least an aspherical surface. A predetermined formula is satisfied.
公开/授权文献
- US20130258497A1 ZOOM LENS AND IMAGING APPARATUS 公开/授权日:2013-10-03
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