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：US11899184B2

公开(公告)日：2024-02-13

申请号：US18091339

申请日：2022-12-29

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：US11885940B2

公开(公告)日：2024-01-30

申请号：US17721258

申请日：2022-04-14

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun Hsu ,  Wei-Yu Chen ,  Kuan-Ting Yeh ,  Ssu-Hsin Liu

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

CPC classification number: G02B13/0045 ,  G02B9/62

Abstract: A photographing lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof, wherein the object-side surface has at least one convex critical point in an off-axis region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. 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, and an image-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface has at least one convex critical point in an off-axis region thereof.

公开(公告)号：US11885939B2

公开(公告)日：2024-01-30

申请号：US17520873

申请日：2021-11-08

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Wei-Yu Chen

IPC: G02B13/00 ,  G02B27/00 ,  G02B5/20 ,  G02B7/02 ,  H04N23/55

CPC classification number: G02B13/0045 ,  G02B5/20 ,  G02B7/021 ,  G02B27/0025 ,  H04N23/55

Abstract: A photographing optical lens assembly 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. 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 an image-side surface being concave in a paraxial region thereof. The sixth 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 seventh lens element has an image-side surface being concave in a paraxial region thereof and having at least one critical point in an off-axis region thereof.

公开(公告)号：US11835693B2

公开(公告)日：2023-12-05

申请号：US17810693

申请日：2022-07-05

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Dung-Yi Hsieh ,  Chun-Che Hsueh ,  Wei-Yu Chen

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

CPC classification number: G02B13/0045 ,  G02B9/60 ,  G02B13/0015 ,  G02B27/0025

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

公开(公告)号：US11747590B2

公开(公告)日：2023-09-05

申请号：US17011160

申请日：2020-09-03

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Shao-Yu Chang ,  Wei-Yu Chen

IPC: G02B9/60 ,  G02B17/02 ,  G02B7/00 ,  G02B3/04

CPC classification number: G02B9/60 ,  G02B3/04 ,  G02B7/003 ,  G02B17/023

Abstract: An imaging optical lens assembly includes five optical elements with refractive power. The five optical elements, in order from an object side to an image side along an optical path, are a first optical element, a second optical element, a third optical element, a fourth optical element, and a fifth optical element. The first optical element has an object-side surface being concave in a paraxial region thereof. The third optical element has negative refractive power.

公开(公告)号：US11668898B2

公开(公告)日：2023-06-06

申请号：US17020590

申请日：2020-09-14

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Yu-Chun Ke ,  Jin Sen Wang ,  Ssu-Hsin Liu ,  Wei-Yu Chen

IPC: G02B9/60 ,  G02B13/00 ,  G02B13/02 ,  G02B27/00 ,  G02B13/18

CPC classification number: G02B9/60 ,  G02B13/0045 ,  G02B13/02 ,  G02B27/0025

Abstract: An image lens assembly includes five 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 and a fifth lens element. The first lens element has positive refractive power. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and having at least one concave critical point in an off-axis region thereof. The fifth lens element has an image-side surface being concave in a paraxial region thereof and having at least one convex critical point in an off-axis region thereof.

公开(公告)号：US11656443B2

公开(公告)日：2023-05-23

申请号：US17933867

申请日：2022-09-21

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Chun-Yen Chen ,  Wei-Yu Chen

IPC: G02B13/00 ,  G02B9/64

CPC classification number: G02B13/0045 ,  G02B9/64

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 first lens element with positive refractive power has an object-side surface being convex 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 seventh lens element 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-side surface of the seventh lens element includes at least one convex shape in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are aspheric.

公开(公告)号：US11573407B2

公开(公告)日：2023-02-07

申请号：US17170655

申请日：2021-02-08

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Cheng-Chen Lin ,  Wei-Yu Chen

IPC: G02B13/18 ,  G02B9/62 ,  G02B13/00 ,  H04N5/232 ,  G02B13/04

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：US11555987B2

公开(公告)日：2023-01-17

申请号：US16926869

申请日：2020-07-13

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Lin-Yao Liao ,  Dung-Yi Hsieh ,  Wei-Yu Chen

IPC: G02B13/00 ,  G02B13/04 ,  H01J37/32 ,  H01L21/02 ,  H01L21/263 ,  H01L21/3065 ,  H01L21/311

Abstract: An optical image capturing system comprising, 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 with negative refractive power has a concave image-side surface. The second lens element, the third lens element and the fourth lens element have refractive power. The fifth lens element has refractive power. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region and includes at least one convex shape in an off-axial region, wherein the surfaces thereof are aspheric. The seventh lens element refractive power has an image-side surface being concave in a paraxial region and includes at least one convex shape in an off-axial region, wherein the surfaces thereof are aspheric.