公开(公告)号：US11982875B2

公开(公告)日：2024-05-14

申请号：US17144244

申请日：2021-01-08

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuo-Jui Wang ,  Tzu-Chieh Kuo

IPC: G02B9/64 ,  G02B13/00 ,  H04N5/225 ,  H04N23/54 ,  H04N23/55

CPC classification number: G02B9/64 ,  G02B13/0045 ,  H04N23/54 ,  H04N23/55

Abstract: An image capturing 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 towards the object side and an image-side surface towards the image side. The first lens element has negative refractive power. The third lens element has positive refractive power. The seventh lens element has negative refractive power.

公开(公告)号：US11982791B2

公开(公告)日：2024-05-14

申请号：US17135575

申请日：2020-12-28

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Wei-Yu Chen

IPC: G02B13/00 ,  G02B9/64

CPC classification number: G02B13/0045 ,  G02B9/64

Abstract: A photographing optical 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 first lens element has negative refractive power. The third lens element has positive refractive power. The fourth lens element has negative refractive power. The sixth lens element has an image-side surface being convex in a paraxial region thereof. The seventh lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The image-side surface of the seventh lens element has at least one critical point in an off-axis region thereof. There is an air gap in a paraxial region between all adjacent lens elements of the seven lens elements.

公开(公告)号：US20240151939A1

公开(公告)日：2024-05-09

申请号：US18096457

申请日：2023-01-12

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Yu Jui LIN ,  Tzu-Chieh KUO

IPC: G02B9/62 ,  G02B13/00 ,  H04N23/55

CPC classification number: G02B9/62 ,  G02B13/0045 ,  H04N23/55 ,  G03B30/00

Abstract: An imaging 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. Each of the six lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The image-side surface of the fourth lens element is convex 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 imaging lens assembly has at least one critical point in an off-axis region thereof.

公开(公告)号：US11971609B2

公开(公告)日：2024-04-30

申请号：US17695735

申请日：2022-03-15

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Yen Chen ,  Kuan-Ting Yeh ,  Tzu-Chieh Kuo

IPC: G02B9/64 ,  G02B13/00 ,  G02B27/00 ,  G02B15/14

CPC classification number: G02B9/64 ,  G02B13/0045 ,  G02B27/0025 ,  G02B15/1461

Abstract: A photographing optical system includes eight 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 and an eighth lens element. The eight lens elements each have an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The fifth lens element has positive refractive power. The object-side surface of the seventh lens element is convex in a paraxial region thereof. The image-side surface of the eighth lens element is concave in a paraxial region thereof. At least one lens surface of at least one lens element of the photographing optical system has at least one critical point in an off-axis region thereof.

公开(公告)号：US11971528B2

公开(公告)日：2024-04-30

申请号：US18146484

申请日：2022-12-27

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun Hsu ,  Hsin-Hsuan Huang

IPC: G02B13/00 ,  G02B9/64

CPC classification number: G02B13/0045 ,  G02B9/64

Abstract: An image capturing optical system includes seven lens elements, the seven lens elements being, 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. An image-side surface of the fifth lens element is convex in a paraxial region thereof. An image-side surface of the sixth lens element is concave in a paraxial region thereof. The seventh lens element has negative refractive power.

公开(公告)号：US20240134163A1

公开(公告)日：2024-04-25

申请号：US18399269

申请日：2023-12-28

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Cheng-Chen LIN ,  Wei-Yu CHEN

IPC: G02B13/00 ,  G02B9/62 ,  G02B13/04 ,  H04N23/69

CPC classification number: G02B13/0045 ,  G02B9/62 ,  G02B13/04 ,  H04N23/69

Abstract: An image capturing 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 with negative refractive power has an image-side surface being concave in a paraxial region thereof. The second and third lens elements have refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element with refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The image capturing lens assembly has a total of six lens elements with refractive power.

公开(公告)号：US20240134153A1

公开(公告)日：2024-04-25

申请号：US18398661

申请日：2023-12-28

Applicant: LARGAN PRECISION CO., LTD.

Inventor： KUAN-MING CHEN ,  Hsin-Hsuan HUANG

IPC: G02B9/60 ,  G02B13/00

CPC classification number: G02B9/60 ,  G02B13/0015 ,  G02B13/0045

Abstract: The present disclosure provides an imaging optical lens assembly, including, in order from an object side to an image side: a first lens element with negative refractive power having an object-side surface being concave in a paraxial region, a second lens element with positive refractive power, a third lens element with negative refractive power, a fourth lens element with positive refractive power, and a fifth lens element with negative refractive power having an image-side surface being concave in a paraxial region and at least one convex shape in an off-axial region on the image-side surface, wherein the imaging optical lens assembly has a total of five lens elements.

公开(公告)号：US11966029B2

公开(公告)日：2024-04-23

申请号：US17321531

申请日：2021-05-17

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hsin-Hsuan Huang

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

CPC classification number: G02B13/0045 ,  G02B9/62 ,  G02B27/0025

Abstract: A photographing 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 with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof, and an image-side surface being concave in a paraxial region thereof. The photographing optical lens assembly has a total of six lens elements with refractive power.

公开(公告)号：US11966013B2

公开(公告)日：2024-04-23

申请号：US16814923

申请日：2020-03-10

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hsin-Hsuan Huang

IPC: G02B3/02 ,  G02B9/62 ,  G02B13/00 ,  G02B13/02 ,  G02B13/18

CPC classification number: G02B13/0045 ,  G02B9/62 ,  G02B13/02

Abstract: An imaging 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. The second lens element has positive refractive power. The third lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The image-side surface of the fifth lens element has at least one inflection point.

公开(公告)号：US20240126045A1

公开(公告)日：2024-04-18

申请号：US17994237

申请日：2022-11-25

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuan-Ting YEH ,  Cheng-Yu TSAI

IPC: G02B9/58 ,  G02B1/04

CPC classification number: G02B9/58 ,  G02B1/041

Abstract: An imaging system 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 and a fourth lens element. Each of the four 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 object-side surface of the third lens element is convex in a paraxial region thereof.