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1. WO2020133619 - EXTERNAL LENS FOR MOBILE TERMINAL

Publication Number WO/2020/133619
Publication Date 02.07.2020
International Application No. PCT/CN2019/072901
International Filing Date 24.01.2019
IPC
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 13/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
G02B 27/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
CPC
G02B 13/0015
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
G02B 13/003
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
003having two lenses
G02B 13/0035
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
0035having three lenses
G02B 13/006
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
0055employing a special optical element
006at least one element being a compound optical element, e.g. cemented elements
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 27/0075
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
0075with means for altering, e.g. increasing, the depth of field or depth of focus
Applicants
  • 广东思锐光学股份有限公司 GUANGDONG SIRUI OPTICAL CO., LTD [CN]/[CN]
Inventors
  • 吴伟 WU, Wei
  • 李杰 LI, Jie
Agents
  • 北京三聚阳光知识产权代理有限公司 SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD
Priority Data
201811617578.626.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) EXTERNAL LENS FOR MOBILE TERMINAL
(FR) LENTILLE EXTERNE POUR TERMINAL MOBILE
(ZH) 一种用于移动终端的外接镜头
Abstract
(EN)
Disclosed is an external lens for a mobile terminal, comprising from object side to image side a first lens group and a second lens group consisting of cylindrical lenses, the focal power of the first lens group in X-direction being less than zero, and the focal power of the second lens group in X-direction being greater than zero. The focal power of the external lens in Y-direction is zero. On the basis of the unique optical characteristics of the cylindrical lenses, the horizontal field-of-view angle of the mobile terminal camera can be increased without changing the vertical field-of-view angle; the function of the mobile terminal to shoot a film video with large aspect ratio can be realized through professional post-processing software (FILMIC PRO); and the imaging quality of the film video with large aspect ratio can be guaranteed with no or a few video clipping.
(FR)
L'invention concerne une lentille externe pour un terminal mobile, comprenant d'un côté objet à un côté image, un premier groupe de lentilles et un second groupe de lentilles constitué de lentilles cylindriques, la puissance focale du premier groupe de lentilles dans la direction X étant inférieure à zéro, et la puissance focale du second groupe de lentilles dans la direction X étant supérieure à zéro. La puissance focale de la lentille externe dans la direction Y est nulle. Sur la base des caractéristiques optiques uniques des lentilles cylindriques, l'angle de champ de vision horizontal de la caméra de terminal mobile peut être augmenté sans changer l'angle de champ de vision vertical ; la fonction du terminal mobile pour filmer une vidéo en film avec un grand rapport d'aspect peut être réalisée par l'intermédiaire d'un logiciel de post-traitement professionnel (FILMIC PRO) ; et la qualité d'imagerie de la vidéo en film avec un grand rapport d'aspect peut être garantie avec peu ou pas d'écrêtage vidéo.
(ZH)
一种用于移动终端的外接镜头,包括从物方到像方设置的由柱面镜片组成的第一镜片组和第二镜片组,第一镜片组X方向的光焦度小于零,第二镜片组X方向的光焦度大于零;外接镜头Y方向的光焦度为零。通过利用柱面镜特有的光学特性,可将移动终端摄像头水平视场角度增加且垂直视场角度不改变;通过专业后期软件(FILMIC PRO)处理,能够实现移动终端拍摄宽画幅比电影视频的功能;而且无需裁剪或裁剪内容少,拍摄宽画幅比视频的同时保证视频的成像质量。
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