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.: US14189480Application Date: 2014-02-25
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Publication No.: US09046675B2Publication Date: 2015-06-02
- Inventor: Hiroki Saito , Michio Cho , Toru Ito
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM CORPORATION
- Current Assignee: FUJIFILM CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Young & Thompson
- Priority: JP2011-185748 20110829
- Main IPC: G02B15/14
- IPC: G02B15/14 ; G02B15/177 ; G02B27/64

Abstract:
In a zoom lens in which a first lens group having a negative refractive power and a second lens group having a positive refractive power are disposed in order from the object side and zooming is performed by moving the first lens group and the second lens group, the first lens group is formed of a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, and a fourth lens having a positive refractive power, disposed in order from the object side. Then, when the focal length of the entire system at the wide angle end is taken as fw and the focal length of the second lens group are taken as f2, the zoom lens is configured to satisfy a conditional expression give below: 0.00
Public/Granted literature
- US20140177075A1 ZOOM LENS AND IMAGING APPARATUS Public/Granted day:2014-06-26
Information query