公开(公告)号：US20240053583A1

公开(公告)日：2024-02-15

申请号：US18377246

申请日：2023-10-05

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Hung-Shuo CHEN ,  Shu-Yun YANG

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

CPC classification number: G02B9/60 ,  G02B13/18 ,  G02B3/02 ,  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：US20220137371A1

公开(公告)日：2022-05-05

申请号：US17577063

申请日：2022-01-17

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Hsin-Hsuan HUANG

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

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 third lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and at least one of an object-side surface and the image-side surface of the seventh lens element includes at least one inflection point. At least one surface of the seven lens elements is aspheric.

公开(公告)号：US20210191075A1

公开(公告)日：2021-06-24

申请号：US16814914

申请日：2020-03-10

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuo-Jui WANG ,  Kuan Chun WANG ,  Hung-Shuo CHEN ,  Jin Sen WANG ,  Syuan Ruei LAI ,  Wei-Yu CHEN

IPC: G02B9/34 ,  G02B13/00 ,  G02B13/18

Abstract: An optical lens assembly includes four lens elements which are, in order from an object side to an image side along an imaging optical path: a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has positive refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being concave in a paraxial region thereof. The fourth lens element with negative 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, and at least one of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point in an off-axis region thereof.

公开(公告)号：US20200285027A1

公开(公告)日：2020-09-10

申请号：US16413200

申请日：2019-05-15

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Hung-Shuo CHEN ,  Syuan Ruei LAI ,  Kuo-Jui WANG ,  Po-Lun HSU ,  Wei-Yu CHEN

IPC: G02B9/62 ,  G02B7/02 ,  H04N5/225

Abstract: An imaging 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. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof.

公开(公告)号：US20180284394A1

公开(公告)日：2018-10-04

申请号：US15707861

申请日：2017-09-18

Applicant: LARGAN Precision Co., Ltd.

Inventor： Hung-Shuo CHEN ,  Shu-Yun YANG

IPC: G02B13/00 ,  G02B9/60 ,  G02B13/18 ,  H04N5/225

CPC classification number: G02B13/0045 ,  G02B9/60 ,  G02B13/18 ,  H04N5/2254

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 can have an object-side surface being concave in a paraxial region thereof.

公开(公告)号：US20210149158A1

公开(公告)日：2021-05-20

申请号：US16744424

申请日：2020-01-16

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che HSUEH ,  Hung-Shuo CHEN ,  Kuan Chun WANG ,  Wei-Yu CHEN

IPC: G02B13/00 ,  G02B9/64

Abstract: A photographing lens assembly includes a total of 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 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 eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.

公开(公告)号：US20200096734A1

公开(公告)日：2020-03-26

申请号：US16188866

申请日：2018-11-13

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Chun-Che HSUEH ,  Hung-Shuo CHEN ,  Yu-Tai TSENG ,  Tzu-Chieh KUO

IPC: G02B13/00 ,  G02B9/62

Abstract: An imaging optical system 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 facing toward the object side and an image-side surface facing toward the image side. At least one lens element of the imaging optical system has at least one aspheric surface having at least one inflection point.

公开(公告)号：US20200018934A1

公开(公告)日：2020-01-16

申请号：US16582032

申请日：2019-09-25

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Wei-Yu CHEN

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

Abstract: An optical photographing lens assembly includes six lens elements, in order from an object side to an image side, the six lens elements are 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 positive refractive power. The fourth lens element has negative refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element has an image-side surface being convex in a paraxial region thereof, both an object-side surface and the image-side surface of the seventh lens element are aspheric, and at least one of the object-side surface and the image-side surface of the sixth lens element includes at least one inflection point.

公开(公告)号：US20190086642A1

公开(公告)日：2019-03-21

申请号：US15851150

申请日：2017-12-21

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Wei-Yu CHEN

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

Abstract: An optical photographing lens assembly includes six lens elements, in order from an object side to an image side, the six lens elements are 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 positive refractive power. The fourth lens element has negative refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element has an image-side surface being convex in a paraxial region thereof, both an object-side surface and the image-side surface of the seventh lens element are aspheric, and at least one of the object-side surface and the image-side surface of the sixth lens element includes at least one inflection point.

公开(公告)号：US20180143402A1

公开(公告)日：2018-05-24

申请号：US15439594

申请日：2017-02-22

Applicant: LARGAN Precision Co., Ltd.

Inventor： Cheng-Chen LIN ,  Hung-Shuo CHEN ,  Tzu-Chieh KUO

IPC: G02B13/00 ,  G02B9/60 ,  G02B7/09 ,  G02B27/00 ,  G02B27/64 ,  H04N5/225 ,  H04N5/232

CPC classification number: G02B13/0045 ,  G02B7/09 ,  G02B9/60 ,  G02B13/02 ,  G02B27/0025 ,  G02B27/646 ,  H04N5/2253 ,  H04N5/23264

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 and a fifth lens element. The first lens element has positive refractive power. The second lens element has negative refractive power. The fourth lens element with negative refractive power has an object-side surface being convex and an image-side surface being concave in a paraxial region thereof, wherein, either the object-side surface thereof, the image-side surface thereof or both the two surfaces thereof have at least one critical point in an off-axial region thereof, and either the object-side surface thereof, the image-side surface thereof or both the two surfaces thereof are aspheric.