公开(公告)号：US09128276B2

公开(公告)日：2015-09-08

申请号：US14096750

申请日：2013-12-04

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan Chen ,  Tsung-Han Tsai ,  Hsin-Hsuan Huang

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

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

Abstract: An optical imaging system includes, in the 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 air gap is formed on an optical axis between every two lens elements adjacent to each other among all lens elements, and the optical imaging system further includes a stop.

Abstract translation: 光学成像系统按从物体侧到像侧的顺序包括具有正折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。 在所有透镜元件之间彼此相邻的每两个透镜元件之间的光轴上形成气隙，并且光学成像系统还包括止动件。

公开(公告)号：US08736981B2

公开(公告)日：2014-05-27

申请号：US13848150

申请日：2013-03-21

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Shan Chen

IPC: G02B13/18 ,  G02B9/60

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

Abstract: This invention provides an imaging lens system including, in order from an object side to an image side: a first lens with positive refractive power having a convex object-side surface; a second lens with negative refractive power; a third lens having a concave image-side surface; a fourth lens with positive refractive power; a fifth lens with negative refractive power having a concave image-side surface, at least one surface thereof having at least one inflection point; and an aperture stop disposed between an imaged object and the third lens. The on-axis spacing between the first lens and second lens is T12, the focal length of the imaging lens system is f, and they satisfy the relation: 0.5

公开(公告)号：US20140085736A1

公开(公告)日：2014-03-27

申请号：US14096750

申请日：2013-12-04

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan Chen ,  Tsung-Han Tsai ,  Hsin-Hsuan Huang

IPC: G02B13/18

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：US08670191B2

公开(公告)日：2014-03-11

申请号：US13890963

申请日：2013-05-09

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Shan Chen

IPC: G02B9/60 ,  G02B13/18

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

Abstract: This invention provides an imaging lens system including, in order from an object side to an image side: a first lens with positive refractive power having a convex object-side surface; a second lens with negative refractive power; a third lens having a concave image-side surface; a fourth lens with positive refractive power; a fifth lens with negative refractive power having a concave image-side surface, at least one surface thereof having at least one inflection point; and an aperture stop disposed between an imaged object and the third lens. The on-axis spacing between the first lens and second lens is T12, the focal length of the imaging lens system is f, and they satisfy the relation: 0.5

公开(公告)号：US08670190B2

公开(公告)日：2014-03-11

申请号：US13848156

申请日：2013-03-21

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Shan Chen

IPC: G02B9/60 ,  G02B13/18

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

Abstract: This invention provides an imaging lens system including, in order from an object side to an image side: a first lens with positive refractive power having a convex object-side surface; a second lens with negative refractive power; a third lens having a concave image-side surface; a fourth lens with positive refractive power; a fifth lens with negative refractive power having a concave image-side surface, at least one surface thereof having at least one inflection point; and an aperture stop disposed between an imaged object and the third lens. The on-axis spacing between the first lens and second lens is T12, the focal length of the imaging lens system is f, and they satisfy the relation: 0.5

Abstract translation: 本发明提供了一种成像透镜系统，包括从物体侧到像侧的顺序：具有凸面物侧的正屈光力的第一透镜; 具有负屈光力的第二透镜; 具有凹面像侧面的第三透镜; 具有正屈光力的第四透镜; 具有负折射力的第五透镜，具有凹形图像侧表面，其至少一个表面具有至少一个拐点; 以及设置在成像对象和第三透镜之间的孔径光阑。 第一透镜和第二透镜之间的轴间距为T12，成像透镜系统的焦距为f，满足关系：0.5 <（T12 / f）×100 <15。

公开(公告)号：US20130215521A1

公开(公告)日：2013-08-22

申请号：US13848150

申请日：2013-03-21

Applicant: Largan Precision Co., Ltd.

Inventor： Chun-Shan Chen

IPC: G02B13/00

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

Abstract: This invention provides an imaging lens system including, in order from an object side to an image side: a first lens with positive refractive power having a convex object-side surface; a second lens with negative refractive power; a third lens having a concave image-side surface; a fourth lens with positive refractive power; a fifth lens with negative refractive power having a concave image-side surface, at least one surface thereof having at least one inflection point; and an aperture stop disposed between an imaged object and the third lens. The on-axis spacing between the first lens and second lens is T12, the focal length of the imaging lens system is f, and they satisfy the relation: 0.5

公开(公告)号：US12242036B2

公开(公告)日：2025-03-04

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 ,  G02B5/20 ,  G02B9/60 ,  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：US11561375B2

公开(公告)日：2023-01-24

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：US11262544B2

公开(公告)日：2022-03-01

申请号：US16553347

申请日：2019-08-28

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan Chen

IPC: G02B13/00 ,  G02B9/60 ,  G02B27/00 ,  G02B13/18 ,  H04N5/225 ,  G02B3/04

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：US10739562B2

公开(公告)日：2020-08-11

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: G02B3/02 ,  G02B13/18 ,  G02B9/62 ,  G02B13/00 ,  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.