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1. CN107850762 - Variable-power optical system, optical device, and method for manufacturing variable-power optical system

官庁
中華人民共和国
出願番号 201680043965.6
出願日 26.05.2016
公開番号 107850762
公開日 27.03.2018
特許番号 107850762
特許付与日 08.05.2020
公報種別 B
IPC
G02B 15/20
G物理学
02光学
B光学要素,光学系,または光学装置
15変倍のための手段をもつ対物レンズ
14対物レンズの等価焦点距離を連続的に変化させるために像面に対する1個以上のレンズまたはレンズ群の軸方向移動によるもの
16一つのレンズまたはレンズ群と,他のレンズまたはレンズ群と間での相互依存的な非線形な相対移動を伴うもの
20対物レンズの焦点距離を変化させるために,さらに別の可動レンズまたはレンズ群を有するもの
G02B 13/18
G物理学
02光学
B光学要素,光学系,または光学装置
13以下に詳細に記載される目的のために特に設計された対物レンズ
181以上の非球面レンズをもつもの,例.幾何学的収差補正用
CPC
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
G02B 13/04
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
04Reversed telephoto objectives
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 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 15/20
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 15/1465
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
146having more than five groups
1465the first group being negative
出願人 NIPPON KOGAKU KK
株式会社尼康
発明者 MACHIDA KOSUKE
町田幸介
SUZUKI TAKESHI
铃木刚司
UEHARA TAKERU
上原健
代理人 中原信达知识产权代理有限责任公司 11219
中原信达知识产权代理有限责任公司 11219
優先権情報 2015-110078 29.05.2015 JP
発明の名称
(EN) Variable-power optical system, optical device, and method for manufacturing variable-power optical system
(ZH) 变倍光学系统、光学装置、变倍光学系统的制造方法
要約
(EN) The present invention has, from the object side, a first lens group (G1) having negative refractive power, a second lens group (G2) having positive refractive power, a third lens group (G3) having negative refractive power, a fourth lens group (G4) having positive refractive power, a fifth lens group (G5) having negative refractive power, and a sixth lens (G6) group having positive refractive power, the air gap between mutually adjacent lens groups (G1 to G6) being varied during variable power to satisfy a predetermined conditional expression. The present invention thereby provides a variable-power optical system provided with excellent optical performance, an optical device, and a method for manufacturing a variable-power optical system.
(ZH) 本发明从物体侧依次具备具有负的光焦度的第1透镜组G1、具有正的光焦度的第2透镜组G2、具有负的光焦度的第3透镜组G3、具有正的光焦度的第4透镜组G4、具有负的光焦度的第5透镜组G5以及具有正的光焦度的第6透镜组G6,在进行变倍时,相邻的透镜组G1~G6彼此之间的空气间隔变化,且满足预定的条件式。由此,提供具备良好的光学性能的变倍光学系统、光学装置、变倍光学系统的制造方法。