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1. WO2020107937 - OPTICAL IMAGING SYSTEM

Publication Number WO/2020/107937
Publication Date 04.06.2020
International Application No. PCT/CN2019/099417
International Filing Date 06.08.2019
IPC
G02B 13/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
G02B 13/18 2006.01
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 11/34 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
11Optical objectives characterised by the total number of simple and compound lenses forming the objective and their arrangement
34having more than six lenses
G02B 9/64 2006.01
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 –
64having more than six components
CPC
G02B 13/0045
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
001Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
0015characterised by the lens design
002having at least one aspherical surface
0045having five or more lenses
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
Applicants
  • 浙江舜宇光学有限公司 ZHEJIANG SUNNY OPTICAL CO., LTD [CN]/[CN]
Inventors
  • 黄林 HUANG, Lin
  • 计云兵 JI, Yunbing
Agents
  • 北京英赛嘉华知识产权代理有限责任公司 INSIGHT INTELLECTUAL PROPERTY LIMITED
Priority Data
201811448647.528.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) OPTICAL IMAGING SYSTEM
(FR) SYSTÉME D'IMAGERIE OPTIQUE
(ZH) 光学成像系统
Abstract
(EN)
Disclosed is an optical imaging system, the imaging system sequentially comprising from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, which all have focal power. The first lens has positive focal power and is a lens made of a glass material; an object side surface of the second lens is a convex surface, and an image side surface thereof is a concave surface; and both the fourth lens and the fifth lens have negative focal power. The aperture value Fno of the optical imaging system satisfies Fno < 1.4.
(FR)
L'invention concerne un système d'imagerie optique, le système d'imagerie comprenant séquentiellement d'un côté objet à un côté image le long d'un axe optique : une première lentille, une deuxième lentille, une troisième lentille, une quatrième lentille, une cinquième lentille, une sixième lentille et une septième lentille, qui ont toutes une puissance focale. La première lentille a une puissance focale positive et est une lentille constituée d'un matériau de verre ; une surface côté objet de la deuxième lentille est une surface convexe, et une surface côté image de celle-ci est une surface concave ; et à la fois la quatrième lentille et la cinquième lentille ont une puissance focale négative. La valeur d'ouverture Fno du système d'imagerie optique satisfait Fno < 1.4.
(ZH)
本申请公开了一种光学成像系统,该成像系统沿着光轴由物侧至像侧依序包括:具有光焦度的第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜。第一透镜具有正光焦度,且其为玻璃材质的透镜;第二透镜的物侧面为凸面,像侧面为凹面;第四透镜和第五透镜均具有负光焦度。其中,光学成像系统的光圈值Fno满足Fno<1.4。
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