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1. JPWO2016121955 - ズームレンズ、および光学機器

Office
Japan
Application Number 2016572199
Application Date 29.01.2016
Publication Number WO2016121955
Publication Date 04.08.2016
Publication Kind A1
IPC
G02B 15/20
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
15Optical objectives with means for varying the magnification
14by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
16with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
20having an additional movable lens or lens group for varying the objective focal length
G02B 13/18
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
18with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
G03B 5/00
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
5Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
CPC
G02B 15/177
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
15Optical objectives with means for varying the magnification
14by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
16with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
177having a negative front lens or group of lenses
G02B 15/145527
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
15Optical objectives with means for varying the magnification
14by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
145having five groups only
1455the first group being negative
145527arranged -+-++
G02B 27/646
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
64Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
646compensating for small deviations, e.g. due to vibration or shake
G02B 9/60
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
9Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
60having five components only
G02B 13/02
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
02Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
G02B 27/0025
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
0025for optical correction, e.g. distorsion, aberration
Applicants 株式会社ニコン
Inventors 梅田 武
Agents 西澤 和純
大浪 一徳
小林 淳一
Priority Data 2015017212 30.01.2015 JP
Title
(JA) ズームレンズ、および光学機器
Abstract
(JA)

ズームレンズは、光軸に沿って物体側から順に、負の屈折力を有する第1レンズ群と、正の屈折力を有する第2レンズ群と、負の屈折力を有する第3レンズ群と、第4レンズ群と、第5レンズ群とを有し、変倍の際、前記第1レンズ群と前記第2レンズ群との間隔が変化し、前記第2レンズ群と前記第3レンズ群との間隔が変化し、前記第3レンズ群と前記第4レンズ群との間隔が変化し、前記第4レンズ群と前記第5レンズ群との間隔が変化し、前記第2レンズ群と前記第4レンズ群とが光軸に沿って同じ軌跡で移動し、少なくとも前記第3レンズ群が光軸に沿って移動する。


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