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.: US14721020Application Date: 2015-05-26
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Publication No.: US09575295B2Publication Date: 2017-02-21
- Inventor: Taiga Noda , Michio Cho
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Young & Thompson
- Priority: JP2014-125253 20140618
- Main IPC: G02B15/14
- IPC: G02B15/14 ; G02B13/00 ; G02B15/16 ; G02B9/00 ; G02B15/173

Abstract:
A zoom lens includes, in order from the object side, a positive first group, a negative second group, a stop, a positive third group, a negative fourth group, and a positive fifth group. During magnification change from the wide-angle end to the telephoto end, the first to fourth groups are moved to always increase the distance between the first and second groups, always decrease the distance between the second and third groups, and change the distance between the third and fourth groups and the distance between the fourth and fifth groups. The third group includes, in order from the object side, at least a positive lens, a positive lens, a negative lens, and a positive lens, and satisfies condition expression (1) below: 25
Public/Granted literature
- US20150370041A1 ZOOM LENS AND IMAGING APPARATUS Public/Granted day:2015-12-24
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