公开(公告)号：US20220404585A1

公开(公告)日：2022-12-22

申请号：US17383305

申请日：2021-07-22

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tzu-Chieh KUO

IPC: G02B13/00 ,  G02B9/64

Abstract: An optical imaging capturing lens assembly includes eight lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The image-side surface of the eighth lens element is concave in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the optical imaging capturing lens assembly has at least one inflection point in an off-axis region thereof.

公开(公告)号：US20220113497A1

公开(公告)日：2022-04-14

申请号：US17107503

申请日：2020-11-30

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Yi-Hsiang CHUANG ,  Wen-Yao YANG ,  Tzu-Chieh KUO

IPC: G02B9/62 ,  G02B13/16

Abstract: An image capturing lens assembly includes six lens elements which are, in order from an object side to an image side along an optical path: 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 with positive refractive power has an object-side surface being convex in a paraxial region thereof. The fourth lens element with positive refractive power 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 sixth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and an image-side surface of at least one lens element has at least one inflection in an off-axis region thereof.

公开(公告)号：US20220003961A1

公开(公告)日：2022-01-06

申请号：US17475420

申请日：2021-09-15

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Chien-Hsun WU ,  Tzu-Chieh KUO

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

Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.

公开(公告)号：US20210389565A1

公开(公告)日：2021-12-16

申请号：US16928950

申请日：2020-07-14

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuo-Jui WANG ,  Tzu-Chieh KUO

IPC: G02B13/00 ,  G02B9/64 ,  G02B13/06 ,  G02B13/02 ,  G02B27/00

Abstract: An imaging lens assembly includes seven lens elements which are, in order from an object side to an image side along an optical path: 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. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The second lens element has positive refractive power. The sixth lens element has positive refractive power, and the image-side surface of the sixth lens element is convex in a paraxial region thereof. The seventh lens element has negative refractive power. At least one of the object-side surface and the image-side surface of at least one lens element of the imaging lens assembly is aspheric and has at least one inflection point.

公开(公告)号：US20210341712A1

公开(公告)日：2021-11-04

申请号：US17376048

申请日：2021-07-14

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tzu-Chieh KUO

IPC: G02B13/00 ,  G02B9/64

Abstract: An optical photographing lens assembly includes nine 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, a seventh lens element, an eighth lens element and a ninth lens element. Each of the nine lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one lens element of the optical photographing lens assembly has at least one aspheric lens surface having at least one inflection point.

公开(公告)号：US20210048629A1

公开(公告)日：2021-02-18

申请号：US16596530

申请日：2019-10-08

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Tzu-Chieh KUO

IPC: G02B13/00 ,  G02B9/64 ,  G02B7/09 ,  G02B3/14

Abstract: An optical photographing lens assembly includes a focus tunable component and an imaging lens system. The imaging lens system includes, in order from an object side to an image side, a first lens group and a second lens group. The first lens group includes, in order from the object side to the image side, an object-side first lens element and an object-side second lens element. The second lens group includes, in order from the image side to the object side, an image-side first lens element and an image-side second lens element. At least one lens surface of at least one lens element in the imaging lens system is aspheric and has at least one inflection point. The imaging lens system has a total of at least four lens elements.

公开(公告)号：US20200326507A1

公开(公告)日：2020-10-15

申请号：US16427173

申请日：2019-05-30

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Chun-Che HSUEH ,  Kuan-Ting YEH ,  Tzu-Chieh KUO

IPC: G02B13/00 ,  G02B9/12 ,  G06K9/00

Abstract: An optical photographing lens assembly includes three lens elements which are, in order from an object side to an image side: a first lens element, a second lens element and a third lens element. Each of the three lens elements of the optical photographing lens assembly has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is concave in a paraxial region thereof, the object-side surface of the first lens element is aspheric and has at least one inflection point, and the object-side surface of the first lens element has at least one critical point in an off-axis region thereof. The optical photographing lens assembly has a total of three lens elements.

公开(公告)号：US20200218033A1

公开(公告)日：2020-07-09

申请号：US16819276

申请日：2020-03-16

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Chien-Hsun WU ,  Tzu-Chieh KUO

IPC: G02B9/34 ,  G02B13/14 ,  H04N5/33 ,  G01B11/24 ,  H04N13/225 ,  H04N13/254 ,  G02B13/00

Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.

公开(公告)号：US20190391367A1

公开(公告)日：2019-12-26

申请号：US16388974

申请日：2019-04-19

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tzu-Chieh KUO

IPC: G02B13/00 ,  G02B9/62

Abstract: A photographing optical lens assembly includes six 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 and a sixth lens element. Each of the six lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The first lens element has positive refractive power. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The fifth lens element has positive refractive power, the object-side surface of the fifth lens element is convex in a paraxial region thereof, and the image-side surface of the fifth lens element is convex in a paraxial region thereof.

公开(公告)号：US20190101724A1

公开(公告)日：2019-04-04

申请号：US15869314

申请日：2018-01-12

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Chien-Hsun WU ,  Tzu-Chieh KUO

IPC: G02B9/34 ,  G02B13/14 ,  G01B11/24 ,  H04N5/33

Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.