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1. WO2022021457 - CAMERA OPTICAL LENS

Publication Number WO/2022/021457
Publication Date 03.02.2022
International Application No. PCT/CN2020/106613
International Filing Date 03.08.2020
IPC
G02B 13/00 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
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 13/06
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
06Panoramic objectives; So-called "sky lenses" ; including panoramic objectives having reflecting surfaces
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 9/64
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
Applicants
  • 诚瑞光学(常州)股份有限公司 AAC OPTICS (CHANGZHOU) CO., LTD. [CN]/[CN]
Inventors
  • 陈佳 CHEN, Jia
  • 孙雯 SUN, Wen
Agents
  • 广州市越秀区哲力专利商标事务所(普通合伙) GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE
Priority Data
202010727540.527.07.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) CAMERA OPTICAL LENS
(FR) LENTILLE OPTIQUE DE CAMÉRA
(ZH) 摄像光学镜头
Abstract
(EN) Disclosed is a camera optical lens (10, 20, 30, 40), containing eight lenses in total. The eight lenses sequentially comprise, from an object side to an image side: a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), a fifth lens (L5), a sixth lens (L6), a seventh lens (L7) and an eighth lens (L8), wherein at least one of the first lens (L1) to the eighth lens (L8) includes a free-form surface, the focal length of the second lens (L2) is f2, the focal length of the sixth lens (L6) is f6, the radius of curvature of an object-side surface of the first lens (L1) is R1, the radius of curvature of an image-side surface of the first lens (L1) is R2, and the following relational expressions are satisfied: -7.50 ≤ f2/f6 ≤ -1.50; and -6.00 ≤ R1/R2 ≤ -0.18. The camera optical lens (10, 20, 30, 40) has the characteristics of a large aperture, a wide angle and being ultra-thin while also having good optical performance.
(FR) Est divulguée une lentille optique de caméra (10, 20, 30, 40), contenant huit lentilles au total. Les huit lentilles comprennent séquentiellement, d'un côté objet à un côté image : une première lentille (L1), une deuxième lentille (L2), une troisième lentille (L3), une quatrième lentille (L4), une cinquième lentille (L5), une sixième lentille (L6), une septième lentille (L7) et une huitième lentille (L8), au moins l'une de la première lentille (L1) à la huitième lentille (L8) comprenant une surface de forme libre, la distance focale de la deuxième lentille (L2) étant f2, la distance focale de la sixième lentille (L6) étant f6, le rayon de courbure d'une surface côté objet de la première lentille (L1) étant R1, le rayon de courbure d'une surface côté image de la première lentille (L1) étant R2 et les expressions relationnelles suivantes étant satisfaites : -7,50 ≤ f2/f6 ≤ -1,50 ; et -6,00 ≤ R1/R2 ≤ -0,18. La lentille optique de caméra (10, 20, 30, 40) présente les caractéristiques d'une grande ouverture, d'un grand angle et d'être ultra-mince, tout en ayant une bonne performance optique.
(ZH) 摄像光学镜头(10,20,30,40)共包含八片透镜,八片透镜自物侧至像侧依序为:第一透镜(L1),第二透镜(L2),第三透镜(L3),第四透镜(L4),第五透镜(L5),第六透镜(L6),第七透镜(L7)以及第八透镜(L8);第一透镜(L1)至第八透镜(L8)中的至少一个含自由曲面,第二透镜(L2)的焦距为f2,第六透镜(L6)的焦距为f6,第一透镜(L1)物侧面的曲率半径为R1,第一透镜(L1)像侧面的曲率半径为R2,且满足下列关系式:-7.50≤f2/f6≤-1.50;-6.00≤R1/R2≤-0.18;摄像光学镜头(10,20,30,40)具有良好光学性能的同时,具有大光圈、广角化、超薄的特点。
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