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1. CN109655999 - Photographic optical lens

Office
China
Application Number 201811650595.X
Application Date 31.12.2018
Publication Number 109655999
Publication Date 19.04.2019
Grant Number 109655999
Grant Date 08.01.2021
Publication Kind B
IPC
G02B 13/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
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
CPC
G02B 13/004
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
004having four lenses
G02B 9/34
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 -
34having four components only
G02B 27/0012
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
0012Optical design, e.g. procedures, algorithms, optimisation routines
Applicants AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
诚瑞光学(常州)股份有限公司
Inventors ZHAO XIAONAN
赵效楠
TERAOKA HIROYUKI
寺冈弘之
Agents 深圳君信诚知识产权代理事务所(普通合伙) 44636
Title
(EN) Photographic optical lens
(ZH) 摄像光学镜头
Abstract
(EN)
The invention relates to the field of optical lenses and discloses a photographic optical lens. The photographic optical lens sequentially comprises an aperture, a first lens with positive refractivepower, a second lens with negative refractive power, a third lens with positive refractive power and a fourth lens with negative refractive power from an object side to an image side; the focal lengthof the fourth lens is f4, the curvature radius of the object side surface of the first lens is R1, the curvature radius of the image side surface of the first lens is R2, the curvature radius of theobject side surface of the second lens is R3, the curvature radius of the image side surface of the second lens is R4, the curvature radius of the object side of the fourth lens is R7, wherein the following relationship is satisfied: 62.00(R7/f4(70.00; 0.10(R1/R2(0.40; -0.50 (R3/R4(-0.30. The photographic optical lens can meet the design requirements of large aperture and ultra-thin while having good optical performance.

(ZH)
本发明涉及光学镜头领域,公开了一种摄像光学镜头。该摄像光学镜头,由物侧至像侧依序包括:一光圈,一具有正屈折力的第一透镜,一具有负屈折力的第二透镜,一具有正屈折力的第三透镜,一具有负屈折力的第四透镜;所述第四透镜的焦距为f4,所述第一透镜物侧面的曲率半径为R1,所述第一透镜像侧面的曲率半径为R2,所述第二透镜物侧面的曲率半径为R3,所述第二透镜像侧面的曲率半径为R4,所述第四透镜物侧面的曲率半径为R7,满足下列关系式:62.00

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