公开(公告)号：US11360291B2

公开(公告)日：2022-06-14

申请号：US17114658

申请日：2020-12-08

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han Tsai ,  Hsin-Hsuan Huang

IPC: G02B13/00 ,  G02B13/18 ,  G02B3/04 ,  G02B9/64 ,  G02B27/00

Abstract: An optical image capturing 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, the second and the third lens elements all have refractive power. The fourth lens element with refractive power has both surfaces being aspheric. The fifth lens element with refractive power has both surfaces being aspheric. The sixth lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof and both surfaces being aspheric. The seventh lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof, wherein both surfaces being aspheric, and at least one surface has at least one inflection point thereon.

公开(公告)号：US11354930B2

公开(公告)日：2022-06-07

申请号：US17194610

申请日：2021-03-08

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che Hsueh ,  Hsiang-Chi Tang ,  Tsung-Han Tsai ,  Fuh-Shyang Yang

IPC: G06V40/13 ,  G06F3/042 ,  H01L27/30

Abstract: An optical fingerprint identification system includes a cover, a light emitting layer, an optical layer, an image sensor and a base that are sequentially disposed from top to bottom. The cover has a fingerprint contact surface on top. The image sensor has an image surface. The optical layer includes a first array layer and a second array layer, and the first array layer is stacked on top of the second array layer. The first array layer and the second array layer respectively include a plurality of first array lens elements and a plurality of second array lens elements respectively arranged at equal intervals in a first direction. Each of the first array lens elements and a corresponding second array lens element of the second array layer are coaxial along an optical axis and form an imaging unit.

公开(公告)号：US11022781B2

公开(公告)日：2021-06-01

申请号：US16415236

申请日：2019-05-17

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Kuan-Ming Chen ,  Tsung-Han Tsai ,  Hsin-Hsuan Huang

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

Abstract: This disclosure provides an optical image capturing lens system comprising: a positive first lens element having a convex object-side surface, a negative second lens element, a positive third lens element having a convex image-side surface, a fourth lens element having a concave object-side surface and a convex image-side surface; and a positive fifth lens element having a convex object-side surface at a paraxial region thereof, both of the object-side and image-side surfaces being aspheric, and at least one inflection point is positioned on at least one of the object-side and image-side surfaces thereof. When particular relations are satisfied, the angle at which light projects onto the image plane can be efficiently controlled for increasing the relative illumination and preventing the occurrence of vignetting.

公开(公告)号：US10890740B2

公开(公告)日：2021-01-12

申请号：US16699100

申请日：2019-11-28

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han Tsai ,  Hsin-Hsuan Huang

IPC: G02B13/00 ,  G02B13/18 ,  G02B3/04 ,  G02B9/64 ,  G02B27/00

Abstract: An optical image capturing 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, the second and the third lens elements all have refractive power. The fourth lens element with refractive power has both surfaces being aspheric. The fifth lens element with refractive power has both surfaces being aspheric. The sixth lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof and both surfaces being aspheric. The seventh lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof, wherein both surfaces being aspheric, and at least one surface has at least one inflection point thereon.

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.

公开(公告)号：US10353179B2

公开(公告)日：2019-07-16

申请号：US15849616

申请日：2017-12-20

Applicant: LARGAN PRECISION CO., LTD.

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

IPC: G02B3/02 ,  G02B13/18 ,  G02B17/00 ,  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：US10101564B2

公开(公告)日：2018-10-16

申请号：US15796868

申请日：2017-10-30

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han Tsai ,  Ming-Ta Chou

IPC: G02B3/02 ,  G02B13/00 ,  G02B3/04 ,  G02B9/64 ,  G02B13/04 ,  G02B27/00 ,  H04N5/225 ,  G02B5/00 ,  G02B13/02 ,  G02B13/18 ,  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：US09995912B2

公开(公告)日：2018-06-12

申请号：US15264616

申请日：2016-09-14

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tsung-Han Tsai ,  Hsin-Hsuan Huang

IPC: G02B3/02 ,  G02B13/18 ,  G02B13/00 ,  G02B9/62 ,  G02B5/00 ,  G02B5/20 ,  G02B27/00

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

Abstract: An image capturing optical lens assembly includes six lens elements, 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 third lens element with negative refractive power has a convex object-side surface and a concave image-side surface. The sixth lens element has an aspheric object-side surface and an aspheric concave image-side surface, and the sixth lens element has at least one inflection point on the image-side surface thereof.

公开(公告)号：US09915808B2

公开(公告)日：2018-03-13

申请号：US15377947

申请日：2016-12-13

Applicant: LARGAN PRECISION CO., LTD.

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

IPC: G02B3/02 ,  G02B13/18 ,  G02B17/00 ,  G02B13/00 ,  G02B5/00 ,  G02B5/20 ,  G02B9/62 ,  G02B27/00

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：USRE46747E1

公开(公告)日：2018-03-06

申请号：US14816057

申请日：2015-08-02

Applicant: Largan Precision Co., Ltd.

Inventor： Po-Lun Hsu ,  Tsung-Han Tsai ,  Ming-Ta Chou

IPC: G02B13/18 ,  G02B13/00

CPC classification number: G02B13/0045

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