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1. WO2020140788 - TELEPHOTO LENS AND MOBILE TERMINAL

Publication Number WO/2020/140788
Publication Date 09.07.2020
International Application No. PCT/CN2019/127517
International Filing Date 23.12.2019
IPC
G02B 13/02 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
02Telephoto objectives, i.e. systems of the type + – in which the distance from the front vertex to the image plane is less than the equivalent focal length
CPC
G02B 1/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
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 13/0065
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
0065having a beam-folding prism or mirror
G02B 13/02
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
02Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
G02B 9/12
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 -
12having three components only
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
  • 曾吉勇 ZENG, Jiyong
  • 王庆平 WANG, Qingping
  • 邓良君 DENG, Liangjun
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
201910005847.103.01.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) TELEPHOTO LENS AND MOBILE TERMINAL
(FR) TÉLÉOBJECTIF ET TERMINAL MOBILE
(ZH) 长焦镜头及移动终端
Abstract
(EN)
Provided are a telephoto lens and a mobile terminal. The telephoto lens (10) sequentially comprises, from an object side to an image side, a first lens (L1) having a positive focal power, a second lens (L2) having a focal power, a third lens (L3) having a negative focal power, sheet glass (G1), and an optical filter (G2). An object side surface (S1) of the first lens (L1) is a convex surface, and an image side surface (S6) of the third lens (L3) is a concave surface. The mobile terminal (100) comprises the telephoto lens (10) and an image sensor (50). The image sensor (50) is arranged on an imaging surface (S11) of the telephoto lens (10) for receiving optical signals output from the telephoto lens (10) and generating electrical signals corresponding to the optical signals. Compared with a conventional telephoto lens, the telephoto lens (10) and the mobile terminal (100) can achieve a higher zoom ratio, and can better satisfy the requirements of miniaturization and high-definition imaging of electronic products.
(FR)
L’invention concerne un téléobjectif et un terminal mobile. Le téléobjectif (10) comprend séquentiellement, d'un côté objet à un côté image, une première lentille (L1) ayant une puissance focale positive, une deuxième lentille (L2) ayant une puissance focale, une troisième lentille (L3) ayant une puissance focale négative, un verre à vitres (G1) et un filtre optique (G2). Une surface côté objet (S1) de la première lentille (L1) est une surface convexe et une surface côté image (S6) de la troisième lentille (L3) est une surface concave. Le terminal mobile (100) comprend le téléobjectif (10) et un capteur d'image (50). Le capteur d'image (50) est disposé sur une surface d'imagerie (S11) du téléobjectif (10) pour recevoir des signaux optiques émis par le téléobjectif (10) et générer des signaux électriques correspondant aux signaux optiques. Par comparaison avec un téléobjectif classique, le téléobjectif (10) et le terminal mobile (100) peuvent atteindre un rapport de zoom supérieur et peuvent mieux satisfaire aux exigences de miniaturisation et d'imagerie haute définition de produits électroniques.
(ZH)
提供一种长焦镜头及移动终端,长焦镜头(10)从物侧到像侧依次包括:具有正光焦度的第一透镜(L1)、具有光焦度的第二透镜(L2)、具有负光焦度的第三透镜(L3)、平板玻璃(G1)和滤光片(G2)。第一透镜(L1)的物侧表面(S1)为凸面,第三透镜(L3)的像侧表面(S6)为凹面。移动终端(100)包括长焦镜头(10)及图像传感器(50),图像传感器(50)设置于长焦镜头(10)的成像面(S11),用于接收长焦镜头(10)输出的光信号并形成与光信号对应的电信号。这种长焦镜头(10)及移动终端(100),相比常规的长焦镜头可实现更高的变倍比,能够更好的满足电子产品的小型化及高清成像需求。
Also published as
EP2019906814
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