公开(公告)号：US20250102771A1

公开(公告)日：2025-03-27

申请号：US18386755

申请日：2023-11-03

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Yu Jui LIN ,  Shih-Han CHEN ,  Guang-Yan LIU ,  Yu-Han SHIH ,  Hsin-Hsuan HUANG

IPC: G02B13/00

Abstract: An imaging lens assembly includes three 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 and a third lens element. Each of the three lens elements 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 second lens element is concave in a paraxial region thereof. At least one surface of at least one lens element in the imaging lens assembly has at least one inflection point.

公开(公告)号：US20250076615A1

公开(公告)日：2025-03-06

申请号：US18768216

申请日：2024-07-10

Applicant: LARGAN PRECISION CO., LTD.

Inventor： I-Chieh CHEN ,  Hsin-Hsuan HUANG ,  Yu-Han SHIH

IPC: G02B13/00 ,  G02B1/04 ,  G02B9/60 ,  H04N23/55

Abstract: An optical lens assembly includes five lens elements, the five lens elements 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 and a fifth lens element. Each of the five lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The fourth lens element with positive refractive power has the object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has the object-side surface being concave in a paraxial region thereof and the image-side surface being concave in a paraxial region thereof.

公开(公告)号：US20250035890A1

公开(公告)日：2025-01-30

申请号：US18679864

申请日：2024-05-31

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuan-Ting YEH ,  Shih-Han CHEN ,  Yi-Cheng LIN ,  Hsin-Hsuan HUANG ,  Yu-Han SHIH

IPC: G02B13/00 ,  G02B9/62

Abstract: An optical lens system includes six lens elements from an object side to an image side, the six lens elements are, in order from the object side to the 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 image-side surface of the second lens element is concave in a paraxial region thereof. The third lens element has positive refractive power. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The image-side surface of the sixth lens element includes at least one inflection point.

公开(公告)号：US20250138284A1

公开(公告)日：2025-05-01

申请号：US18517677

申请日：2023-11-22

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Yu-Chun KE ,  Shiu Sheng LI ,  Hong Rong KUO ,  Yu-Han SHIH

IPC: G02B13/00 ,  G02B9/62

Abstract: An image capturing lens assembly includes six lens units which are, in order from an object side to an image side along an optical path: first through sixth lens units. Each lens unit of the first through third lens units and the fifth through sixth lens units is a single lens element. The fourth lens unit is a single lens element or is composed of two lens elements, and the fourth lens unit at least includes a front lens element. The total number of lens elements of the image capturing lens assembly is six to seven. The first lens unit has an image-side surface being concave in a paraxial region thereof. The third lens unit has an object-side surface being convex in a paraxial region thereof. The front lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof.