公开(公告)号：US10656389B2

公开(公告)日：2020-05-19

申请号：US16252788

申请日：2019-01-21

Applicant: LARGAN PRECISION CO., LTD.

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

IPC: G02B9/60 ,  G02B13/00 ,  H04N5/225 ,  G02B27/00

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：US10459197B2

公开(公告)日：2019-10-29

申请号：US15869252

申请日：2018-01-12

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Hsin-Hsuan Huang ,  Shu-Yun Yang

IPC: G02B13/00 ,  G02B27/01 ,  G02B9/34

Abstract: An image capturing lens system includes, in order from an object side to an image side, a first lens element with positive 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 second lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, a third lens element with positive refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, and a fourth 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.

公开(公告)号：US10429611B2

公开(公告)日：2019-10-01

申请号：US15865503

申请日：2018-01-09

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun Hsu ,  Chun-Yen Chen ,  Chun-Che Hsueh ,  Wei-Yu Chen

IPC: G02B9/64 ,  G02B27/00

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

公开(公告)号：US10386603B2

公开(公告)日：2019-08-20

申请号：US16015491

申请日：2018-06-22

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Che Hsueh ,  Hsin-Hsuan Huang

IPC: G02B13/18 ,  G02B13/00

Abstract: An optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex, and the object-side surface and an image-side surface thereof are aspheric. The second lens element with negative refractive power has an image-side surface being concave, and an object-side surface and the image-side surface thereof are aspheric. The third lens element with refractive power has an object-side surface being concave, and the object-side surface and an image-side surface thereof are aspheric. The optical lens assembly further includes a stop with no lens element having refractive power disposed between the stop and the first lens element. The optical lens assembly has a total of three lens elements with refractive power.

公开(公告)号：US10281684B2

公开(公告)日：2019-05-07

申请号：US15698632

申请日：2017-09-07

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuan-Ming Chen ,  Tsung-Han Tsai ,  Hsin-Hsuan Huang ,  Chun-Che Hsueh

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

Abstract: An optical image capturing 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 with positive refractive power has a convex object-side surface. The second lens element and the third lens element have refractive power. The fourth lens element with negative refractive power has a concave object-side surface and a convex image-side surface. The fifth lens element with positive refractive power has a convex object-side surface, wherein at least one inflection point is on at least one surface thereof. The sixth lens element with negative refractive power has a concave object-side surface. The surfaces of the fifth and the sixth lens elements are aspheric. The optical image capturing system has a total of six lens elements.

公开(公告)号：US10209488B2

公开(公告)日：2019-02-19

申请号：US15631994

申请日：2017-06-23

Applicant: LARGAN Precision Co., Ltd.

Inventor： Yu-Tai Tseng ,  Chun-Che Hsueh ,  Tzu-Chieh Kuo

IPC: G02B9/60 ,  G02B13/00 ,  G02B13/14 ,  G02B13/18

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

公开(公告)号：US10073248B2

公开(公告)日：2018-09-11

申请号：US15078030

申请日：2016-03-23

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Cheng-Chen Lin ,  Chun-Che Hsueh ,  Wei-Yu Chen

IPC: G02B13/18 ,  G02B13/00 ,  G02B9/62 ,  G02B13/06

CPC classification number: G02B13/0045 ,  G02B9/62 ,  G02B13/06

Abstract: An imaging 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 fourth lens element with positive refractive power has an object-side surface and an image-side surface being both aspheric. 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, wherein two surfaces of the fifth lens element are aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof and comprising at least one convex shape in an off-axial region thereof, wherein two surfaces of the sixth lens element are aspheric.

公开(公告)号：US10031318B2

公开(公告)日：2018-07-24

申请号：US15201326

申请日：2016-07-01

Applicant: LARGAN PRECISION CO., LTD.

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

IPC: G02B13/18 ,  G02B9/62 ,  G02B13/00 ,  G02B3/04 ,  G02B27/00 ,  G02B5/00

Abstract: An optical imaging 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. The second lens element has negative refractive power. At least one of two surfaces of the fourth lens element has at least one inflection point, and the two surfaces thereof are aspheric. The fifth lens element has an object-side surface being convex and an image-side surface having at least one inflection point, and the two surfaces thereof are aspheric. The sixth lens element has an image-side surface being concave, wherein the image-side surface of the sixth lens element has at least one convex shape in off-axial region, and the two surfaces thereof are aspheric.

公开(公告)号：US09904034B2

公开(公告)日：2018-02-27

申请号：US15161431

申请日：2016-05-23

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Hsin-Hsuan Huang ,  Shu-Yun Yang

IPC: G02B13/00 ,  G02B27/01 ,  G02B9/34

CPC classification number: G02B13/004 ,  G02B9/34 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/0123 ,  G02B2027/0138 ,  G02B2027/015 ,  G02B2027/0152 ,  G02B2027/0178

Abstract: An image capturing lens system includes, in order from an object side to an image side, a first lens element with positive 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 second lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, a third lens element with positive refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, and a fourth 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.

公开(公告)号：US09857563B2

公开(公告)日：2018-01-02

申请号：US15226057

申请日：2016-08-02

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Lin-Yao Liao ,  Chun-Che Hsueh ,  Chien-Shun Wu ,  Wei-Yu Chen

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

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

Abstract: An optical image 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 with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has negative refractive power. The fifth lens element with negative refractive power has an object-side surface and an image-side surface being both aspheric. The sixth lens element has an object-side surface and an image-side surface being both aspheric.