公开(公告)号：US12001077B2

公开(公告)日：2024-06-04

申请号：US17203926

申请日：2021-03-17

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Lin-An Chang ,  Ming-Ta Chou ,  Shu-Yun Yang ,  Cheng-Feng Lin ,  Hsiang-Chi Tang

IPC: G02B7/09 ,  G02B1/04 ,  G02B13/00 ,  G03B11/04 ,  G03B17/17 ,  G02B7/02 ,  G02B27/64 ,  G03B5/00 ,  G03B13/36 ,  G03B30/00

CPC classification number: G02B7/09 ,  G02B1/04 ,  G02B13/0065 ,  G03B11/04 ,  G03B17/17 ,  G02B7/021

Abstract: An imaging lens assembly module includes an imaging lens element set, a lens carrier and a light blocking structure. The imaging lens element set has an optical axis. At least one lens element of the lens elements is disposed in the lens carrier. The light blocking structure includes a light blocking opening. The optical axis passes through the light blocking opening, and the light blocking opening includes at least two arc portions and a shrinking portion. Each of the arc portions has a first curvature radius for defining a maximum diameter of the light blocking opening. The shrinking portion is connected to the arc portions for forming the light blocking opening into a non-circular shape. The shrinking portion includes at least one protruding arc which extends and shrinks gradually from the shrinking portion to the optical axis, and the protruding arc has a second curvature radius.

公开(公告)号：US11668911B2

公开(公告)日：2023-06-06

申请号：US17580512

申请日：2022-01-20

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Shu-Yun Yang

IPC: G02B13/00 ,  G02B13/18 ,  G02B9/64 ,  H04N5/225 ,  G02B27/00

CPC classification number: G02B13/0045 ,  G02B9/64 ,  G02B13/18 ,  G02B27/0025 ,  H04N5/2254

Abstract: A photographing lens assembly includes seven lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The second lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex shape in an off-axis region thereof.

公开(公告)号：US10955643B2

公开(公告)日：2021-03-23

申请号：US16154546

申请日：2018-10-08

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Chun-Yen Chen ,  Shu-Yun Yang

IPC: G02B13/14 ,  G02B13/00 ,  G02B13/18 ,  G02B9/34

Abstract: An electronic device includes a lens system including four lens elements. the four lens elements are, in order from an outer side to an inner side, a first lens element, a second lens element, a third lens element and a fourth lens element. The second lens element has negative refractive power. The fourth lens element has positive refractive power. At least one surface of the four lens elements has at least one inflection point. A projection device and a detecting module of the electronic device including the lens system are also disclosed.

公开(公告)号：US10901180B2

公开(公告)日：2021-01-26

申请号：US16584699

申请日：2019-09-26

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Yen Chen ,  Shu-Yun Yang

IPC: G02B13/00 ,  G02B13/18 ,  G02B9/34 ,  G02B13/14

Abstract: An electronic device includes a lens system including four lens elements. the four lens elements are, in order from an outer side to an inner side, a first lens element, a second lens element, a third lens element and a fourth lens element. The second lens element has negative refractive power. The fourth lens element has positive refractive power. At least one surface of the four lens elements has at least one inflection point. A projection device and a detecting module of the electronic device including the lens system are also disclosed.

公开(公告)号：US10422931B2

公开(公告)日：2019-09-24

申请号：US15869233

申请日：2018-01-12

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tung-Yi Hsieh ,  Shu-Yun Yang ,  Yu-Tai Tseng

IPC: G02B3/14 ,  G02B13/18 ,  G02B15/00 ,  G02F1/29 ,  G02B13/00

Abstract: An image capturing lens assembly includes a focus tunable component and an imaging lens system. The imaging lens system includes a plurality of lens elements, wherein each of the lens elements has an object-side surface facing towards an object side of the imaging lens system and an image-side surface facing towards an image side of the imaging lens system, and at least one surface of at least one of the lens elements includes at least one inflection point.

公开(公告)号：US10365459B2

公开(公告)日：2019-07-30

申请号：US15720780

申请日：2017-09-29

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Chun-Yen Chen ,  Shu-Yun Yang

IPC: G02B9/62 ,  G02B13/00 ,  G02B1/04 ,  G02B9/60 ,  G02B13/06

Abstract: An imaging optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element has negative refractive power. The second lens element has negative refractive power. The third lens element has negative refractive power. The imaging optical lens assembly has a total of six lens elements.

公开(公告)号：US10215965B2

公开(公告)日：2019-02-26

申请号：US15920254

申请日：2018-03-13

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuan-Ming Chen ,  Yu-Tai Tseng ,  Hsin-Hsuan Huang ,  Shu-Yun Yang

IPC: G02B9/62 ,  G02B13/18 ,  G02B3/02 ,  G02B13/00 ,  G02B13/04 ,  G02B27/00 ,  G02B13/06

Abstract: An imaging optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has positive refractive power. The fifth lens element has negative refractive power. The sixth lens element has positive refractive power. The imaging optical lens system has a total of six lens elements.

公开(公告)号：US10197772B2

公开(公告)日：2019-02-05

申请号：US15484333

申请日：2017-04-11

Applicant: LARGAN Precision Co., Ltd.

Inventor： Chun-Yen Chen ,  Shu-Yun Yang

IPC: G02B13/18 ,  G02B3/02 ,  G02B9/60 ,  G02B13/00 ,  G02B13/04 ,  B60R11/04

Abstract: An optical photographing lens system, includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The second lens element has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has positive refractive power. The fifth lens element has negative refractive power. The optical photographing lens system has a total of five lens elements.

公开(公告)号：US20180136440A1

公开(公告)日：2018-05-17

申请号：US15869252

申请日：2018-01-12

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Hsin-Hsuan Huang ,  Shu-Yun Yang

IPC: G02B13/00 ,  G02B27/01 ,  G02B9/34

Abstract: An image capturing lens system includes, in order from an object side to an image side, a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, a second lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, a third lens element with positive refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, and a fourth lens element with negative refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof.

公开(公告)号：US20180011293A1

公开(公告)日：2018-01-11

申请号：US15284990

申请日：2016-10-04

Applicant: LARGAN PRECISION CO., LTD.

Inventor： CHUN-CHE HSUEH ,  Shu-Yun Yang

IPC: G02B13/00 ,  G02B5/00 ,  G02B9/62 ,  G02B27/00

CPC classification number: G02B13/0045 ,  G02B5/005 ,  G02B9/62 ,  G02B13/006 ,  G02B13/06 ,  G02B27/0025

Abstract: The present disclosure provides an optical imaging lens assembly comprising, in order from an object side to an image side: a first lens element having negative refractive power; a second lens element with negative refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof; a third lens element having positive refractive power; a fourth lens element having positive refractive power; a fifth lens element having positive refractive power; and a sixth lens element; wherein the optical imaging lens assembly has a total of six lens elements. With such configuration, the optical imaging lens assembly of the present disclosure is characterized by a a wide field of view, a compact size and high image quality.