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1. WO2020140604 - OPTICAL IMAGING LENS AND IMAGING DEVICE

Publication Number WO/2020/140604
Publication Date 09.07.2020
International Application No. PCT/CN2019/116133
International Filing Date 07.11.2019
IPC
G02B 13/18 2006.1
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
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 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
H04M 1/0264
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
1Substation equipment, e.g. for use by subscribers
02Constructional features of telephone sets
0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
026Details of the structure or mounting of specific components
0264for a camera module assembly
H04M 2250/52
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
2250Details of telephonic subscriber devices
52including functional features of a camera
H04N 5/2252
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
2251Constructional details
2252Housings
H04N 5/2254
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
2251Constructional details
2254Mounting of optical parts, e.g. lenses, shutters, filters or optical parts peculiar to the presence or use of an electronic image sensor
Applicants
  • 江西联益光学有限公司 JIANGXI LIANYI OPTICS CO., LTD. [CN]/[CN]
Inventors
  • 刘绪明 LIU, Xuming
  • 曾昊杰 ZENG, Haojie
  • 张田 ZHANG, Tian
  • 曾吉勇 ZENG, Jiyong
Agents
  • 深圳市智圈知识产权代理事务所(普通合伙) SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE
Priority Data
201910000729.102.01.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) OPTICAL IMAGING LENS AND IMAGING DEVICE
(FR) LENTILLE D'IMAGERIE OPTIQUE ET DISPOSITIF D'IMAGERIE
(ZH) 光学成像镜头及成像设备
Abstract
(EN)
Disclosed are an optical imaging lens (100) and an imaging device, which relate to the technical field of optical lenses. The optical imaging lens (100) successively comprises, from an object side to an image side along an optical axis (A): a first lens (L1) with a positive focal power, with an object side surface thereof being a convex surface and an image side surface being a concave surface; a second lens (L2) with a negative focal power; a third lens (L3) with a positive focal power; a fourth lens (L4) with a negative focal power, with an object side surface thereof being a concave surface at a paraxial position and an image side surface being a convex surface at the paraxial position; a fifth lens (L5) with a negative focal power, with an image side surface thereof being a concave surface at the paraxial position; a sixth lens (L6) with a positive focal power; and a seventh lens (L7) with a negative focal power, with an object side surface and an image side surface thereof being both concave surfaces at the paraxial position. By means of rationally combining the lens shapes and focal power of various lenses, the optical imaging lens (100) and the imaging device have the advantages of a large aperture and a high imaging quality.
(FR)
La présente invention concerne une lentille d'imagerie optique (100) et un dispositif d'imagerie qui se rapportent au domaine technique des lentilles optiques. La lentille d'imagerie optique (100) comprend successivement, d'un côté objet à un côté image le long d'un axe optique (A), une première lentille (L1) ayant une puissance focale positive, une surface côté objet de celle-ci étant une surface convexe et une surface côté image étant une surface concave ; une deuxième lentille (L2) ayant une puissance focale négative ; une troisième lentille (L3) ayant une puissance focale positive ; une quatrième lentille (L4) ayant une puissance focale négative, une surface côté objet de celle-ci étant une surface concave à une position paraxiale et une surface côté image étant une surface convexe au niveau de la position paraxiale ; une cinquième lentille (L5) avec une puissance focale négative, une surface côté image de celle-ci étant une surface concave au niveau de la position paraxiale ; une sixième lentille (L6) avec une puissance focale positive et une septième lentille (L7) ayant une puissance focale négative, une surface côté objet et une surface côté image de celle-ci étant toutes deux des surfaces concaves à la position paraxiale. Au moyen de la combinaison rationnelle des formes de la lentille et de la puissance focale de diverses lentilles, la lentille d'imagerie optique (100) et le dispositif d'imagerie présentent les avantages d'une grande ouverture et d'une qualité d'imagerie élevée.
(ZH)
一种光学成像镜头(100)及成像设备,涉及光学镜头技术领域。光学成像镜头(100)沿光轴(A)从物侧到像侧依次包括:具有正光焦度的第一透镜(L1),其物侧表面为凸面,像侧表面为凹面;具有负光焦度的第二透镜(L2);具有正光焦度的第三透镜(L3);具有负光焦度的第四透镜(L4),其物侧表面在近轴处为凹面,像侧表面在近轴处为凸面;具有负光焦度的第五透镜(L5),其像侧表面在近轴处为凹面;具有正光焦度的第六透镜(L6);具有负光焦度的第七透镜(L7),其物侧表面和像侧表面在近轴处均为凹面。光学成像镜头(100)及成像设备,通过合理搭配各透镜之间的镜片形状与光焦度组合,具有大光圈和成像品质高的优点。
Also published as
EP2019907109
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