公开(公告)号：US10401595B2

公开(公告)日：2019-09-03

申请号：US16128533

申请日：2018-09-12

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han Tsai ,  Ming-Ta Chou

IPC: G02B3/02 ,  G02B13/00 ,  G02B3/04 ,  G02B13/04 ,  G02B9/64 ,  H04N5/225 ,  G02B27/00 ,  G02B13/18 ,  G02B5/00 ,  G02B13/02 ,  G02B13/22

Abstract: An image lens assembly 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, a sixth lens element and a seventh lens element. The first lens element with negative refractive power has a convex object-side surface. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element has refractive power. The sixth lens element with refractive power is made of plastic material, wherein at least one surface of the sixth lens element is aspheric. The seventh lens element with refractive power made of plastic material has a concave image-side surface changing from concave in a paraxial region to convex in a peripheral region, and at least one surface thereof is aspheric.

公开(公告)号：US10345554B2

公开(公告)日：2019-07-09

申请号：US15273681

申请日：2016-09-22

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han Tsai ,  Hsin-Hsuan Huang

IPC: G02B13/00 ,  G02B9/60 ,  G02B5/00 ,  G02B5/20 ,  G02B27/00

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 has refractive power. The second lens element has positive refractive power. The third lens element with positive refractive power has an image-side surface being concave in a paraxial region thereof. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein an object-side surface and the image-side surface of the fifth lens element are aspheric, and at least one of the surfaces of the fifth lens element has at least one inflection point. The optical photographing lens assembly has a total of five lens elements with refractive power.

公开(公告)号：US10215966B2

公开(公告)日：2019-02-26

申请号：US15922871

申请日：2018-03-15

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Lin-Yao Liao ,  Tsung-Han Tsai ,  Ming-Ta Chou

IPC: G02B13/18 ,  G02B3/02 ,  G02B13/00 ,  G02B9/62 ,  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 with positive refractive power has a convex object-side surface and a concave image-side surface. The second lens element, the third lens element, and the fourth lens element have refractive power. The fifth lens element with positive refractive power is made of plastic, and has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric. The sixth lens element with refractive power is made of plastic, and has a concave image-side surface, wherein the image-side surface thereof changes from concave at a paraxial region to convex at a peripheral region, and the surfaces thereof are aspheric.

公开(公告)号：US10209487B2

公开(公告)日：2019-02-19

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

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：US10018809B2

公开(公告)日：2018-07-10

申请号：US15196052

申请日：2016-06-29

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hsiang-Chi Tang ,  Tsung-Han Tsai ,  Hsin-Hsuan Huang

IPC: G02B13/18 ,  G02B3/02 ,  G02B9/62 ,  G02B13/00 ,  G02B27/00

CPC classification number: G02B13/0045 ,  G02B9/62 ,  G02B13/18 ,  G02B27/0025

Abstract: An image capturing optical 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 refractive power. The third lens element with refractive power has a concave image-side surface. The fourth lens element has refractive power, and at least one surface thereof is aspheric. The fifth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, and the surfaces thereof are aspheric. The sixth lens element with refractive power has a convex object-side surface, and an image-side surface changing from concave at a paraxial region thereof to convex at a peripheral region thereof, and the surfaces are aspheric.

公开(公告)号：USRE46710E1

公开(公告)日：2018-02-13

申请号：US15076680

申请日：2016-03-22

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han Tsai ,  Ming-Ta Chou

IPC: G02B3/02 ,  G02B3/04 ,  G02B13/00 ,  G02B13/04 ,  H04N5/225 ,  G02B9/64 ,  G02B13/22 ,  G02B13/02 ,  G02B27/00 ,  G02B5/00 ,  G02B13/18

CPC classification number: G02B13/0045 ,  G02B3/04 ,  G02B5/005 ,  G02B9/64 ,  G02B13/02 ,  G02B13/04 ,  G02B13/18 ,  G02B13/22 ,  G02B27/0025 ,  H04N5/2254

Abstract: An image lens assembly 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, a sixth lens element and a seventh lens element. The first lens element with negative refractive power has a convex object-side surface. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element has refractive power. The sixth lens element with refractive power is made of plastic material, wherein at least one surface of the sixth lens element is aspheric. The seventh lens element with refractive power made of plastic material has a concave image-side surface changing from concave in a paraxial region to convex in a peripheral region, and at least one surface thereof is aspheric.

公开(公告)号：US20170299848A1

公开(公告)日：2017-10-19

申请号：US15642419

申请日：2017-07-06

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han Tsai ,  Hsin-Hsuan Huang

IPC: G02B13/00

CPC classification number: G02B13/0045

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, a fifth lens element and a sixth lens element. The first lens element has positive refractive power in a paraxial region thereof. The second lens element has negative refractive power in a paraxial region thereof. Both of the third and fourth lens elements have refractive power. The fifth lens element with 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 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 imaging optical system has a total of six lens elements with refractive power.

公开(公告)号：US09488802B2

公开(公告)日：2016-11-08

申请号：US13652485

申请日：2012-10-16

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Shan Chen ,  Tsung-Han Tsai ,  Ming-Ta Chou

IPC: G02B3/02 ,  G02B13/18 ,  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 with positive refractive power has a convex object-side surface. 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 positive refractive power has a convex image-side surface, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with negative refractive power has a concave image-side surface, wherein at least one surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on the image-side surface thereof.

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。 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。 第三透镜元件具有正的折光力。 第四透镜元件具有屈光力。 具有正折光力的第五透镜元件具有凸形的图像侧表面，其中第五透镜元件的至少一个表面是非球面的。 具有负屈光力的第六透镜元件具有凹形图像侧表面，其中第六透镜元件的至少一个表面是非球面的，并且第六透镜元件在其图像侧表面上具有至少一个拐点。

公开(公告)号：US09448385B2

公开(公告)日：2016-09-20

申请号：US14816079

申请日：2015-08-03

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Po-Lun Hsu ,  Tsung-Han Tsai ,  Hsin-Hsuan Huang

IPC: G02B13/18 ,  G02B9/08 ,  G02B9/62 ,  G02B13/00 ,  G02B3/04 ,  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：US09429737B2

公开(公告)日：2016-08-30

申请号：US14464704

申请日：2014-08-20

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Lin-Yao Liao ,  Tsung-Han Tsai ,  Ming-Ta Chou

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

CPC classification number: G02B13/0045 ,  G02B9/62 ,  G02B13/002 ,  G02B13/18 ,  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 with positive refractive power has a convex object-side surface and a concave image-side surface. The second lens element, the third lens element, and the fourth lens element have refractive power. The fifth lens element with positive refractive power is made of plastic, and has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric. The sixth lens element with refractive power is made of plastic, and has a concave image-side surface, wherein the image-side surface thereof changes from concave at a paraxial region to convex at a peripheral region, and the surfaces thereof are aspheric.

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。 具有正折射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，第三透镜​​元件和第四透镜元件具有屈光力。 具有正屈光力的第五透镜元件由塑料制成，并且具有凸面物侧表面和凹面像侧面，其中其表面是非球面的。 具有屈光力的第六透镜元件由塑料制成，并且具有凹面像侧表面，其中图像侧表面在近轴区域处的凹部在周边区域处变为凸形，并且其表面是非球面的。