公开(公告)号：US20220121012A1

公开(公告)日：2022-04-21

申请号：US17562086

申请日：2021-12-27

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han TSAI ,  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 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：US20210231923A1

公开(公告)日：2021-07-29

申请号：US17225177

申请日：2021-04-08

Applicant: LARGAN PRECISION CO., LTD.

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

IPC: G02B13/00 ,  G02B5/00 ,  G02B13/18 ,  G02B9/62 ,  G02B5/20 ,  G02B27/00

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：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：US20190353879A1

公开(公告)日：2019-11-21

申请号：US16529756

申请日：2019-08-01

Applicant: LARGAN PRECISION CO., LTD.

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

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

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：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：US20180203210A1

公开(公告)日：2018-07-19

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: G02B13/00 ,  G02B27/00 ,  G02B9/62 ,  G02B13/18

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.

公开(公告)号：US20180067286A1

公开(公告)日：2018-03-08

申请号：US15796868

申请日：2017-10-30

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han TSAI ,  Ming-Ta CHOU

IPC: G02B13/00 ,  G02B3/04 ,  G02B9/64 ,  G02B13/04

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：US20170010448A1

公开(公告)日：2017-01-12

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

CPC classification number: G02B13/0045 ,  G02B5/005 ,  G02B5/208 ,  G02B9/60 ,  G02B27/0025

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.

Abstract translation: 光学摄影镜头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，第四透镜元件和第五透镜元件。 第一透镜元件具有屈光力。 第二透镜元件具有正的折光力。 具有正折射力的第三透镜元件具有在其近轴区域中凹陷的图像侧表面。 第四透镜元件具有屈光力。 具有屈光力的第五透镜元件在其近轴区域中具有凹入的图像侧表面，其中第五透镜元件的物体侧表面和图像侧表面是非球面的，并且至少一个表面 第五透镜元件具有至少一个拐点。 光学拍摄镜头组件具有总共具有屈光力的五个透镜元件。

公开(公告)号：US20160170184A1

公开(公告)日：2016-06-16

申请号：US15052778

申请日：2016-02-24

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han TSAI ,  Hsin-Hsuan HUANG

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

CPC classification number: G02B13/0045 ,  G02B9/00 ,  G02B9/60 ,  G02B13/18 ,  G02B27/0025 ,  H04N5/2253

Abstract: A photographing optical lens assembly comprises, 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 a concave object-side surface in a paraxial region. The second lens element has refractive power. The third lens element has refractive power. The fourth lens element with negative refractive power has an object-side and an image-side surfaces both being aspheric. The fifth lens element with refractive power has an aspheric object-side surface and an aspheric image-side surface being concave in a paraxial region with at least one inflection point. The photographing optical lens assembly has a total of five lens elements with refractive power.

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。