公开(公告)号：US09784945B1

公开(公告)日：2017-10-10

申请号：US15181580

申请日：2016-06-14

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Lin-Yao Liao ,  Hsin-Hsuan Huang ,  Shu-Yun Yang

IPC: G02B13/18 ,  G02B3/02 ,  G02B13/00 ,  G02B9/34 ,  G02B13/04 ,  G02B27/00

CPC classification number: G02B13/004 ,  G02B9/34 ,  G02B13/04 ,  G02B27/0025

Abstract: This invention provides an optical lens assembly comprising, in order from an object side to an image side: a first lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof; a second lens element having positive refractive power; a third lens element having an object-side surface being concave in a paraxial region thereof; and a fourth lens element having 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-side surface thereof having at least one convex shape in an off-axis region thereof; wherein the optical lens assembly has a total of four lens elements. With such configuration, the optical lens assembly of the present disclosure is characterized by a reduced size and a wide field of view.

公开(公告)号：US09715088B1

公开(公告)日：2017-07-25

申请号：US15223095

申请日：2016-07-29

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Shu-Yun Yang

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

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

Abstract: A photographing 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 image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has negative refractive power. The sixth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being planar or convex in a paraxial region thereof.

公开(公告)号：US11822150B2

公开(公告)日：2023-11-21

申请号：US17751610

申请日：2022-05-23

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo Chen ,  Shu-Yun Yang

IPC: G02B9/60 ,  G02B13/18 ,  G02B3/02 ,  H04N23/55 ,  G02B13/00

CPC classification number: G02B9/60 ,  G02B3/02 ,  G02B13/18 ,  H04N23/55 ,  G02B13/0045

Abstract: An optical imaging lens system includes five 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 and a fifth lens element. The first lens element has positive refractive power. The second lens element has negative refractive power. The third lens element has positive refractive power. The fourth lens element has negative refractive power. The fifth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof.

公开(公告)号：US11262552B2

公开(公告)日：2022-03-01

申请号：US16848669

申请日：2020-04-14

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Shu-Yun Yang

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

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：US10928609B2

公开(公告)日：2021-02-23

申请号：US16269839

申请日：2019-02-07

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Shu-Yun Yang

IPC: G02B9/62 ,  G02B13/00 ,  G02B13/06 ,  G02B5/00 ,  G02B27/00

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 wide field of view, a compact size and high image quality.

公开(公告)号：US10901183B2

公开(公告)日：2021-01-26

申请号：US16047195

申请日：2018-07-27

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Shu-Yun Yang

IPC: G02B13/00 ,  G02B9/64

Abstract: An optical 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. At least one surface among object-side surfaces and image-side surfaces of the seven lens elements is aspheric. At least one of an object-side surface and an image-side surface of the seventh lens element has at least one inflection point.

公开(公告)号：US10802251B2

公开(公告)日：2020-10-13

申请号：US15391085

申请日：2016-12-27

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Cheng-Chen Lin ,  Hsin-Hsuan Huang ,  Shu-Yun Yang

IPC: G02B13/00 ,  G02B13/02 ,  G02B5/00 ,  G02B27/00

Abstract: A photographing optical lens assembly includes, in order from an object side to an image side along an optical axis, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The second lens element has negative refractive power. The third lens element has an object-side surface being convex in a paraxial region thereof.

公开(公告)号：US10795123B2

公开(公告)日：2020-10-06

申请号：US15951912

申请日：2018-04-12

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Cheng-Yuan Liao ,  Shu-Yun Yang ,  Kuo-Jui Wang

IPC: G02B13/00 ,  G02B9/60 ,  G02B13/04 ,  G02B27/00

Abstract: An optical imaging lens assembly includes five 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 and a fifth lens element. The first lens element has an image-side surface being concave in a paraxial region thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element has negative refractive power.

公开(公告)号：US10670833B2

公开(公告)日：2020-06-02

申请号：US15857924

申请日：2017-12-29

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chien-Hsun Wu ,  Shu-Yun Yang

IPC: G02B9/62 ,  G02B13/18 ,  G02B27/00 ,  G02B13/00 ,  G02B13/04 ,  G02B13/22

Abstract: An imaging lens assembly includes six lens elements, the six 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 and a sixth lens element. The first lens element has negative refractive power. The second lens element has positive refractive power. The fifth lens element has positive refractive power.

公开(公告)号：US10509200B2

公开(公告)日：2019-12-17

申请号：US15863916

申请日：2018-01-06

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Shu-Yun Yang

IPC: G02B13/00 ,  G02B13/18 ,  G02B3/02 ,  G02B3/04 ,  G02B27/00 ,  G02B27/64 ,  G02B9/60 ,  G02B9/62 ,  G02B9/64 ,  G02B9/34

Abstract: A photographing lens assembly includes, in order from an object side to an image side: a plurality of lens elements and an aspheric image surface. Each of the lens elements of the photographing lens assembly has an object-side surface facing toward the object side and an image-side surface facing toward the image side, and each of the lens elements is a single and non-cemented lens element.