公开(公告)号：US20230258911A1

公开(公告)日：2023-08-17

申请号：US18138647

申请日：2023-04-24

Applicant: LARGAN PRECISION CO., LTD.

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

IPC: G02B13/00 ,  G02B9/60 ,  G02B13/18 ,  G02B5/20

CPC classification number: G02B13/0045 ,  G02B9/60 ,  G02B13/002 ,  G02B13/18 ,  G02B5/208

Abstract: An optical imaging system includes, in order from an object side to an image side, a first lens element with positive refractive power, a second lens element, a third lens element, a fourth lens element, and a fifth lens element. Each of the fourth lens element and the fifth lens element includes at least one aspheric surface. The fourth lens element and the fifth lens element are made of plastic. The fifth lens element includes a concave image-side surface and at least one inflection point. An axial distance is formed between each of the first lens element, the second lens element, the third lens element, the fourth lens element, and the fifth lens element, and the optical imaging system further comprises a stop.

公开(公告)号：US20170192208A1

公开(公告)日：2017-07-06

申请号：US15468079

申请日：2017-03-23

Applicant: LARGAN PRECISION CO.,LTD.

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

IPC: G02B13/00 ,  G02B5/20 ,  G02B9/60

CPC classification number: G02B13/0045 ,  G02B5/208 ,  G02B9/60 ,  G02B13/002 ,  G02B13/18

Abstract: An optical imaging system includes, in order from an object side to an image side, a first lens element with positive refractive power, a second lens element, a third lens element, a fourth lens element, and a fifth lens element. Each of the fourth lens element and the fifth lens element includes at least one aspheric surface. The fourth lens element and the fifth lens element are made of plastic. The fifth lens element includes a concave image-side surface and at least one inflection point. An axial distance is formed between each of the first lens element, the second lens element, the third lens element, the fourth lens element, and the fifth lens element, and the optical imaging system further comprises a stop.

公开(公告)号：US20170090161A1

公开(公告)日：2017-03-30

申请号：US15377944

申请日：2016-12-13

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan CHEN ,  Tsung-Han TSAI ,  Ming-Ta CHOU

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

CPC classification number: G02B13/0045 ,  G02B5/005 ,  G02B5/208 ,  G02B9/62 ,  G02B27/0025

Abstract: An optical image 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 positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.

公开(公告)号：US20150370046A1

公开(公告)日：2015-12-24

申请号：US14838379

申请日：2015-08-28

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan CHEN ,  Tsung-Han TSAI ,  Ming-Ta CHOU

IPC: G02B13/00 ,  G02B9/62

CPC classification number: G02B13/0045 ,  G02B5/005 ,  G02B5/208 ,  G02B9/62 ,  G02B27/0025

Abstract: An optical image 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 positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.

Abstract translation: 光学图像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。 第一透镜元件具有正折光力。 第二透镜元件具有正的折光力。 第三透镜元件具有正的折光力。 第四透镜元件具有屈光力。 具有屈光力的第五透镜元件具有在其近轴区域中凸出的图像侧表面，其中第五透镜元件的至少一个表面是非球面的。 具有屈光力的第六透镜元件的近侧区域具有凹入的图像侧表面，其中第六透镜元件的至少一个表面是非球面的，并且第六透镜元件的像侧表面具有至少一个拐点 点上。

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。

公开(公告)号：US20200333565A1

公开(公告)日：2020-10-22

申请号：US16916100

申请日：2020-06-29

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan CHEN ,  Tsung-Han TSAI ,  Ming-Ta CHOU

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

Abstract: An optical image 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 positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.

公开(公告)号：US20180292631A1

公开(公告)日：2018-10-11

申请号：US16009227

申请日：2018-06-15

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan CHEN ,  Tsung-Han TSAI ,  Ming-Ta CHOU

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

Abstract: An optical image 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 positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.

公开(公告)号：US20160195701A1

公开(公告)日：2016-07-07

申请号：US15067412

申请日：2016-03-11

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan CHEN

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

CPC classification number: G02B13/0045 ,  G02B3/04 ,  G02B9/60 ,  G02B13/18 ,  G02B27/0025 ,  H04N5/225 ,  H04N5/2253 ,  H04N5/2254

Abstract: An imaging lens system comprises, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with refractive power; a third lens element with refractive power having object-side and image-side surfaces being aspheric, at least one surface thereof having at least one inflection point; a fourth lens element with refractive power having a concave object-side surface and a convex image-side surface; a fifth lens element with refractive power having an aspheric object-side surface and an aspheric concave image-side surface, the image-side surface thereof having at least one inflection point.

公开(公告)号：US20150378132A1

公开(公告)日：2015-12-31

申请号：US14746475

申请日：2015-06-22

Applicant: LARGAN Precision Co., Ltd.

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

IPC: G02B13/00 ,  G02B9/60

CPC classification number: G02B13/0045 ,  G02B5/208 ,  G02B9/60 ,  G02B13/002 ,  G02B13/18

Abstract: An optical imaging system includes, in order from an object side to an image side, a first lens element with positive refractive power, a second lens element, a third lens element, a fourth lens element, and a fifth lens element. Each of the fourth lens element and the fifth lens element includes at least one aspheric surface. The fourth lens element and the fifth lens element are made of plastic. The fifth lens element includes a concave image-side surface and at least one inflection point. An axial distance is formed between each of the first lens element, the second lens element, the third lens element, the fourth lens element, and the fifth lens element, and the optical imaging system further comprises a stop.

Abstract translation: 光学成像系统从物体侧到像侧依次包括具有正屈光力的第一透镜元件，第二透镜元件，第三透镜​​元件，第四透镜元件和第五透镜元件。 第四透镜元件和第五透镜元件中的每一个包括至少一个非球面。 第四透镜元件和第五透镜元件由塑料制成。 第五透镜元件包括凹形图像侧表面和至少一个拐点。 在第一透镜元件，第二透镜元件，第三透镜​​元件，第四透镜元件和第五透镜元件中的每一个之间形成轴向距离，并且光学成像系统还包括止动件。

公开(公告)号：US20140293455A1

公开(公告)日：2014-10-02

申请号：US14302410

申请日：2014-06-11

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Shan CHEN ,  Hsiang-Chi TANG ,  Po-Lun HSU ,  Ming-Ta CHOU

IPC: G02B3/04

CPC classification number: G02B3/04 ,  G02B9/60 ,  G02B13/0045 ,  G02B13/18

Abstract: A photographing 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 third lens element with positive refractive power has a convex object-side surface and a convex image-side surface. The fourth lens element with negative refractive power has a concave object-side surface. The object-side surface and an image-side surface of the fourth lens element are aspheric. The fifth lens element with refractive power has a concave image-side surface. An object-side surface and the image-side surface of the fifth lens element are aspheric, and the fifth lens element has at least one inflection point formed on the image-side surface thereof.

Abstract translation: 第一透镜元件，第二透镜元件，第三透镜​​元件，第四透镜元件和第五透镜元件，从物体侧到像侧依次包括拍摄系统。 第一透镜元件具有正折光力。 第二透镜元件具有负屈光力。 具有正屈光力的第三透镜元件具有凸的物体侧表面和凸形的图像侧表面。 具有负屈光力的第四透镜元件具有凹入的物体侧表面。 第四透镜元件的物体侧表面和图像侧表面是非球面的。 具有屈光力的第五透镜元件具有凹形图像侧表面。 第五透镜元件的物体侧表面和像侧表面是非球面的，并且第五透镜元件具有形成在其图像侧表面上的至少一个拐点。