Invention Grant
US08503092B2 Zoom lens, optical apparatus and method of manufacturing zoom lens
有权
变焦镜头，光学仪器和制造变焦镜头的方法
- Patent Title: Zoom lens, optical apparatus and method of manufacturing zoom lens
- Patent Title (中): 变焦镜头，光学仪器和制造变焦镜头的方法
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Application No.: US13215381Application Date: 2011-08-23
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Publication No.: US08503092B2Publication Date: 2013-08-06
- Inventor: Daisaku Arai
- Applicant: Daisaku Arai
- Applicant Address: JP Tokyo
- Assignee: Nikon Corporation
- Current Assignee: Nikon Corporation
- Current Assignee Address: JP Tokyo
- Agency: Miles & Stockbridge P.C.
- Priority: JP2010-195087 20100831; JP2010-195088 20100831
- Main IPC: G02B15/14
- IPC: G02B15/14 ; G02B27/64
Abstract:
A zoom lens having, in order from the object, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, and a third lens group G3 having positive refractive power, wherein the second lens group G2 is constituted only by three or more cemented lenses.
Public/Granted literature
- US20120050883A1 ZOOM LENS, OPTICAL APPARATUS AND METHOD OF MANUFACTURING ZOOM LENS Public/Granted day:2012-03-01
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