公开(公告)号：US20220413190A1

公开(公告)日：2022-12-29

申请号：US17823106

申请日：2022-08-30

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun HSU ,  Wei-Yu CHEN

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

Abstract: An 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 positive refractive power. The second lens element has positive refractive power. 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, wherein the two surfaces of the fourth lens element are both aspheric. The fifth lens element having an image-side surface being concave in a paraxial region thereof, wherein two surfaces of the fifth lens element are both aspheric, and the image-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.

公开(公告)号：US20200150398A1

公开(公告)日：2020-05-14

申请号：US16743292

申请日：2020-01-15

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun HSU ,  Wei-Yu CHEN

IPC: G02B13/00 ,  G02B9/60 ,  G02B27/64 ,  G02B13/18 ,  G02B27/00

Abstract: An 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 positive refractive power. The second lens element has positive refractive power. 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, wherein the two surfaces of the fourth lens element are both aspheric. The fifth lens element having an image-side surface being concave in a paraxial region thereof, wherein two surfaces of the fifth lens element are both aspheric, and the image-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.

公开(公告)号：US20200150394A1

公开(公告)日：2020-05-14

申请号：US16731212

申请日：2019-12-31

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun HSU ,  Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B9/64

Abstract: An image capturing optical system 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. An image-side surface of the fifth lens element is convex in a paraxial region thereof. An image-side surface of the sixth lens element is concave in a paraxial region thereof. The seventh lens element has negative refractive power.

公开(公告)号：US20180275373A1

公开(公告)日：2018-09-27

申请号：US15701482

申请日：2017-09-12

Applicant: Largan Precision Co., Ltd.

Inventor： Po-Lun HSU ,  Wei-Yu CHEN

IPC: G02B13/00 ,  G02B27/00 ,  G02B13/18 ,  G02B27/64 ,  G02B9/60

CPC classification number: G02B13/0045 ,  G02B9/60 ,  G02B13/18 ,  G02B27/0025 ,  G02B27/646

Abstract: An 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 positive refractive power. The second lens element has positive refractive power. 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, wherein the two surfaces of the fourth lens element are both aspheric. The fifth lens element having an image-side surface being concave in a paraxial region thereof, wherein two surfaces of the fifth lens element are both aspheric, and the image-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.

公开(公告)号：US20180231744A1

公开(公告)日：2018-08-16

申请号：US15955114

申请日：2018-04-17

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Cheng-Chen LIN ,  Po-Lun HSU ,  Wei-Yu CHEN

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

CPC classification number: G02B13/0045 ,  G02B5/005 ,  G02B9/62 ,  G02B13/0015 ,  G02B13/002 ,  G02B13/04 ,  G02B13/06 ,  G02B13/18 ,  G02B27/0025 ,  H04N5/2254

Abstract: A 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 with negative refractive power has a concave image-side surface in a paraxial region. The second lens element with refractive power has a convex object-side surface in a paraxial region. The third lens element has positive refractive power. The fourth lens element with positive refractive power has an object-side and an image-side surfaces being aspheric. The fifth lens element with negative refractive power has an aspheric concave object-side surface and an aspheric convex image-side surface in a paraxial region. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region with a convex shape in an off-axis region.

公开(公告)号：US20160356994A1

公开(公告)日：2016-12-08

申请号：US15241091

申请日：2016-08-19

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun HSU ,  Tsung-Han TSAI ,  Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B27/00 ,  G02B5/20 ,  G02B9/62 ,  G02B5/00

CPC classification number: G02B13/0045 ,  G02B3/04 ,  G02B5/005 ,  G02B5/208 ,  G02B9/62 ,  G02B13/0015 ,  G02B13/18 ,  G02B27/0025

Abstract: A 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, 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, the third lens element and the fourth lens element have refractive power. The fifth lens element with negative refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric, and at least one of the surfaces thereof has at least one inflection point thereon. The sixth lens element with negative refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric, and at least one of the surfaces thereof has at least one inflection point.

公开(公告)号：US20140240852A1

公开(公告)日：2014-08-28

申请号：US13854128

申请日：2013-03-31

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun HSU ,  Hsiang-Chi TANG ,  Tsung-Han TSAI ,  Hsin-Hsuan HUANG

IPC: G02B13/00

CPC classification number: G02B13/0045 ,  G02B9/62

Abstract: An 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 a convex object-side surface. The second lens element has refractive power. The third lens element has positive 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 the surfaces thereof are aspheric. The sixth lens element with refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric, and the sixth lens element has at least one inflection point on at least one of the surfaces thereof.

Abstract translation: 成像透镜组件从物体侧到像侧依次包括第一透镜元件，第二透镜元件，第三透镜​​元件，第四透镜元件，第五透镜元件和第六透镜元件。 具有正折光力的第一透镜元件具有凸的物体侧表面。 第二透镜元件具有屈光力。 第三透镜元件具有正的折光力。 具有负屈光力的第四透镜元件具有凹入的物体侧表面和凸形的图像侧表面。 具有正折光力的第五透镜元件具有凸形物体侧表面，其中其表面是非球面的。 具有屈光力的第六透镜元件具有凸形的物体侧表面和凹形的图像侧表面，其中其表面是非球面的，并且第六透镜元件在其至少一个表面上具有至少一个拐点。

公开(公告)号：US20140092491A1

公开(公告)日：2014-04-03

申请号：US13733876

申请日：2013-01-03

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun HSU ,  Tsung-Han TSAI ,  Hsin-Hsuan HUANG

IPC: G02B9/62

CPC classification number: G02B9/62 ,  G02B9/00 ,  G02B9/60 ,  G02B9/64 ,  G02B13/00 ,  G02B13/001 ,  G02B13/0045 ,  G02B13/02 ,  G02B13/18

Abstract: An 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 negative refractive power has a convex object-side surface and a concave image-side surface. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element with refractive power has an object-side surface and an image-side surface being aspheric. The fifth lens element with positive refractive power has an object-side surface and an image-side surface being aspheric. The sixth lens element with negative refractive power has a concave image-side surface, wherein at least one reflection point is formed on the image-side surface thereof.

Abstract translation: 成像透镜组件从物体侧到像侧依次包括第一透镜元件，第二透镜元件，第三透镜​​元件，第四透镜元件，第五透镜元件和第六透镜元件。 具有负屈光力的第一透镜元件具有凸的物体侧表面和凹形的图像侧表面。 第二透镜元件具有正的折光力。 第三透镜元件具有屈光力。 具有屈光力的第四透镜元件具有物体侧表面和图像侧表面是非球面的。 具有正折光力的第五透镜元件具有物体侧表面和图像侧表面是非球面的。 具有负屈光力的第六透镜元件具有凹形图像侧表面，其中至少一个反射点形成在其图像侧表面上。

公开(公告)号：US20140043695A1

公开(公告)日：2014-02-13

申请号：US13671542

申请日：2012-11-07

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun HSU ,  Chun-Shan CHEN ,  Tsung-Han TSAI ,  Hsin-Hsuan HUANG

IPC: G02B13/18

CPC classification number: G02B9/62 ,  G02B13/0045

Abstract: An optical photographing 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 with positive refractive power has a convex object-side surface. The second lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element with refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric. The fifth lens element with positive refractive power has a convex image-side surface, wherein the surfaces thereof are aspheric. The sixth lens element with negative refractive power has a concave image-side surface, wherein the image-side surface changes from concave at a paraxial region thereof to convex at a peripheral region thereof, and the surfaces thereof are aspheric.

Abstract translation: 光学拍摄透镜系统从物体侧到像侧依次包括第一透镜元件，第二透镜元件，第三透镜​​元件，第四透镜元件，第五透镜元件和第六透镜元件。 具有正折光力的第一透镜元件具有凸的物体侧表面。 第二透镜元件具有正的折光力。 第三透镜元件具有负折光力。 具有屈光力的第四透镜元件具有凸形物体侧表面和凹形图像侧表面，其中其表面是非球面的。 具有正折射力的第五透镜元件具有凸形的图像侧表面，其中其表面是非球面的。 具有负屈光力的第六透镜元件具有凹形图像侧表面，其中图像侧表面在其近轴区域处的凹部在其周边区域处变为凸形，并且其表面是非球面的。