公开(公告)号：US20200257089A1

公开(公告)日：2020-08-13

申请号：US16861272

申请日：2020-04-29

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Hsin-Hsuan HUANG

IPC: G02B13/00 ,  H04N5/225 ,  G02B9/64

Abstract: A photographing lens assembly includes seven lens elements, which are, 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 third lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and at least one of an object-side surface and the image-side surface of the seventh lens element includes at least one inflection point. At least one surface of the seven lens elements is aspheric.

公开(公告)号：US20200218033A1

公开(公告)日：2020-07-09

申请号：US16819276

申请日：2020-03-16

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Chien-Hsun WU ,  Tzu-Chieh KUO

IPC: G02B9/34 ,  G02B13/14 ,  H04N5/33 ,  G01B11/24 ,  H04N13/225 ,  H04N13/254 ,  G02B13/00

Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.

公开(公告)号：US20190101724A1

公开(公告)日：2019-04-04

申请号：US15869314

申请日：2018-01-12

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hung-Shuo CHEN ,  Chien-Hsun WU ,  Tzu-Chieh KUO

IPC: G02B9/34 ,  G02B13/14 ,  G01B11/24 ,  H04N5/33

Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.

公开(公告)号：US20190064484A1

公开(公告)日：2019-02-28

申请号：US15867587

申请日：2018-01-10

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Kuan-Ting YEH ,  Hung-Shuo CHEN ,  Chien-Hsun WU ,  Wei-Yu CHEN

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

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

Abstract: An imaging lens system includes five lens elements, which are, 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. At least one of an object-side surface and an image-side surface of the fifth lens element has at least one inflection point. The object-side surface and the image-side surface of the fifth lens element are both aspheric.

公开(公告)号：US20180356613A1

公开(公告)日：2018-12-13

申请号：US15782448

申请日：2017-10-12

Applicant: LARGAN Precision Co., Ltd.

Inventor： Hung-Shuo CHEN ,  Wei-Yu CHEN ,  Chun-Yen CHEN

IPC: G02B9/62 ,  G02B13/00 ,  G02B15/14 ,  G02B7/04

CPC classification number: G02B9/62 ,  G02B7/04 ,  G02B13/0045 ,  G02B15/14

Abstract: A photographing lens assembly includes six lens elements which are, 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 negative refractive power has an image-side surface being concave in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one convex critical point in an off-axis region thereof, and both an object-side surface and the image-side surface of the sixth lens element are aspheric.

公开(公告)号：US20180335610A1

公开(公告)日：2018-11-22

申请号：US15711770

申请日：2017-09-21

Applicant: LARGAN Precision Co., Ltd.

Inventor： Hung-Shuo CHEN ,  Hsin-Hsuan HUANG

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

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

Abstract: A photographing lens system includes five lens elements which are, 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 third lens element has an object-side surface being convex in a paraxial region thereof. The fourth lens element has an object-side surface being convex in a paraxial region thereof.