Invention Grant
US09588322B2 Zoom lens, optical apparatus and manufacturing method for the zoom lens
有权
变焦镜头,光学装置及变焦镜头的制造方法
- Patent Title: Zoom lens, optical apparatus and manufacturing method for the zoom lens
- Patent Title (中): 变焦镜头,光学装置及变焦镜头的制造方法
-
Application No.: US14805458Application Date: 2015-07-21
-
Publication No.: US09588322B2Publication Date: 2017-03-07
- Inventor: Toshiyuki Shimada
- Applicant: NIKON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: Nikon Corporation
- Current Assignee: Nikon Corporation
- Current Assignee Address: JP Tokyo
- Agency: Shapiro, Gabor and Rosenberger, PLLC
- Priority: JP2013-010348 20130123
- Main IPC: G02B15/14
- IPC: G02B15/14 ; G02B13/18 ; G02B13/04 ; G02B15/177 ; G02B15/20

Abstract:
Provided is a zoom lens (ZL) including, in order from an object along an optical axis: 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 a positive refractive power. At least the first lens group (G1) and the second lens group (G2) are moved along the optical axis upon zooming from a wide-angle end state to a telephoto end state, so that the distance between the first lens group (G1) and the second lens group (G2) decreases, and the distance between the second lens group (G2) and the third lens group (G3) increases, the first lens (G2) includes one positive lens, and the second lens (G2) includes one negative lens.
Public/Granted literature
- US20150323771A1 ZOOM LENS, OPTICAL APPARATUS AND MANUFACTURING METHOD FOR THE ZOOM LENS Public/Granted day:2015-11-12
Information query