公开(公告)号：US10606035B2

公开(公告)日：2020-03-31

申请号：US15797211

申请日：2017-10-30

Applicant: LARGAN PRECISION CO., LTD.

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

IPC: G02B13/00 ,  G02B13/18 ,  G02B9/64 ,  G02B7/09 ,  G02B27/64

Abstract: An image capturing 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 fifth 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 sixth 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 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, and the image-side surface thereof includes at least one convex shape in an off-axis region thereof.

公开(公告)号：US10591701B2

公开(公告)日：2020-03-17

申请号：US15827233

申请日：2017-11-30

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Dung-Yi Hsieh ,  Chun-Yen Chen ,  Chun-Che Hsueh ,  Hsin-Hsuan Huang

IPC: G02B13/00 ,  G02B9/60

Abstract: An optical photographing 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 with positive 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 second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.

公开(公告)号：US10585262B2

公开(公告)日：2020-03-10

申请号：US16456638

申请日：2019-06-28

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Che Hsueh ,  Hsin-Hsuan Huang

IPC: G02B9/12 ,  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：US10509202B2

公开(公告)日：2019-12-17

申请号：US15634781

申请日：2017-06-27

Applicant: LARGAN Precision Co., Ltd.

Inventor： Chun-Che Hsueh ,  Shu-Yun Yang

IPC: G02B13/00 ,  G02B9/62 ,  G02B13/04 ,  H04N5/225

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

公开(公告)号：US10222585B2

公开(公告)日：2019-03-05

申请号：US15080680

申请日：2016-03-25

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：US10185128B2

公开(公告)日：2019-01-22

申请号：US15646978

申请日：2017-07-11

Applicant: LARGAN Precision Co., Ltd.

Inventor： Chun-Che Hsueh ,  Wei-Yu Chen ,  Chun-Shan Chen ,  Hsuan-Chin Huang ,  Kuan-Ting Yeh

IPC: G02B13/18 ,  G02B3/02 ,  G02B9/60 ,  G02B13/00 ,  H04N5/225

Abstract: An optical photographing lens assembly includes five lens elements, 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 positive refractive power has a convex object-side surface in a paraxial region thereof. The second lens element with negative refractive power has a convex object-side surface and a concave image-side surface in a paraxial region thereof. The fourth lens element with positive refractive power has a convex image-side surface in a paraxial region thereof. The fifth lens element with negative refractive power has a concave image-side surface in a paraxial region thereof, wherein the image-side surface of the fifth lens element has at least one convex critical point in an off-axial region thereof, and two surfaces of the fifth lens element are both aspheric.

公开(公告)号：US10107991B2

公开(公告)日：2018-10-23

申请号：US15497385

申请日：2017-04-26

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Wei-Yu Chen

IPC: G02B9/62 ,  G02B13/00 ,  G02B5/20

Abstract: This disclosure provides an image capturing optical lens assembly including, in order from an object side to an image side: a first lens element with refractive power having an object-side surface being convex in a paraxial region thereof; a second lens element having positive refractive power; a third lens element with refractive power having an image-side surface being concave in a paraxial region thereof; a fourth lens element with refractive power having an image-side surface being concave in a paraxial region thereof, wherein both surfaces thereof being aspheric; a fifth lens element with refractive power having an object-side surface being concave in a paraxial region thereof; and a sixth lens element with refractive power having an image-side surface being concave in a paraxial region thereof, wherein both surfaces thereof being aspheric, and the image-side surface having at least one convex shape in an off-axis region thereof.

公开(公告)号：US10031317B2

公开(公告)日：2018-07-24

申请号：US14680983

申请日：2015-04-07

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Che Hsueh ,  Hsin-Hsuan Huang

IPC: G02B3/02 ,  G02B13/00

CPC classification number: G02B13/0035

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：US20180074294A1

公开(公告)日：2018-03-15

申请号：US15436980

申请日：2017-02-20

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Shu-Yun Yang

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

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

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 positive refractive power has an object-side surface being convex in a paraxial region thereof. The fifth lens element has an object-side surface being convex in a paraxial region thereof. The sixth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof and includes at least one convex shape in an off-axial region thereof.

公开(公告)号：US20170219799A1

公开(公告)日：2017-08-03

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.