公开(公告)号：US20210132344A1

公开(公告)日：2021-05-06

申请号：US17144292

申请日：2021-01-08

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B13/18 ,  G02B9/62 ,  G02B3/04 ,  H04N5/335 ,  G02B27/00

Abstract: An image 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 has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element with negative refractive power has a concave object-side surface, wherein both of the surfaces of the fifth lens element are aspheric. The sixth lens element with refractive power has a concave image-side surface, wherein the image-side surface thereof has at least one inflection point, and both of the surfaces of the sixth lens element are aspheric. The image lens assembly has a total of six lens elements with refractive power.

公开(公告)号：US20210124153A1

公开(公告)日：2021-04-29

申请号：US17140149

申请日：2021-01-04

Applicant: LARGAN PRECISION CO., LTD.

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

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

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：US20200241253A1

公开(公告)日：2020-07-30

申请号：US16846632

申请日：2020-04-13

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Chun-Che HSUEH ,  Yu-Tai TSENG ,  Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B27/00 ,  G02B13/04 ,  G02B9/62

Abstract: An optical photographing 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 an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has an object-side surface being concave in a paraxial region thereof. The fifth lens element with positive refractive power has two surfaces being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the surfaces of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one convex shape in an off-axial region thereof.

公开(公告)号：US20200088973A1

公开(公告)日：2020-03-19

申请号：US16691575

申请日：2019-11-21

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B9/62 ,  G02B1/04

Abstract: An optical image capturing lenses includes, in order from an object side to an image side, a front lens group, a stop, and a rear lens group. The front lens group includes, in order from the object side to the image side, at least a first lens element and a second lens element. The first lens element has a convex object-side surface and a concave image-side surface. The rear lens group includes, in order from the object side to the image side, at least a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The sixth lens element is made of plastic material. The object-side surface and the image-side surface of the sixth lens are aspheric. The sixth lens element has at least one inflection point formed on at least one of the object-side surface and the image-side surface thereof.

公开(公告)号：US20200073085A1

公开(公告)日：2020-03-05

申请号：US16267256

申请日：2019-02-04

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Hsin-Hsuan HUANG

IPC: G02B9/64 ,  G02B15/173 ,  G02B13/00

Abstract: An imaging lens system includes seven lens elements. The seven lens elements 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 first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the seventh lens element has at least one inflection point in an off-axis region thereof.

公开(公告)号：US20200064596A1

公开(公告)日：2020-02-27

申请号：US16666513

申请日：2019-10-29

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hsin-Hsuan HUANG

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

Abstract: An image picking-up system includes seven lens elements, which are, in order from an object side to an image side, a first lens group including a first lens element and a second lens element, a second lens group including a third lens element and a fourth lens element, and a third lens group including a fifth lens element, a sixth lens element and a seventh lens element. The third lens element has positive refractive power. The fourth lens element has an image-side surface being concave in a paraxial region thereof. At least one surface of object-side surfaces and image-side surfaces of the seven lens elements includes at least one inflection point.

公开(公告)号：US20190361204A1

公开(公告)日：2019-11-28

申请号：US16537355

申请日：2019-08-09

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Hsin-Hsuan HUANG

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

Abstract: This disclosure discloses an optical imaging lens assembly, sequentially arranged from an object side to an image side along an optical axis, comprising: the first lens element with positive refractive power, the second lens element with negative refractive power having a convex object-side surface and a concave image-side surface, the third lens element with positive refractive power, the fourth lens element with negative refractive power having a concave object-side surface and a convex image-side surface, the fifth lens element with refractive power having a concave image-side surface, and both object-side surface and image-side surface being aspheric, wherein a stop and an image sensor disposed on an image plane are also provided. By such arrangements, the image pickup optical system satisfies conditions related to shorten the total length and to reduce the sensitivity for use in compact cameras and mobile phones with camera functionalities.

公开(公告)号：US20190331899A1

公开(公告)日：2019-10-31

申请号：US16505524

申请日：2019-07-08

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Hsin-Hsuan HUANG

IPC: G02B13/00 ,  H04N5/225 ,  G02B27/00 ,  G02B9/64 ,  G02B9/00

Abstract: A photographing optical lens assembly includes, in order from object side to 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 has positive refractive power. The second, third, fourth and fifth lens elements have refractive power. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region, wherein an object-side surface and the image-side surface of the sixth lens element are both aspheric, and the image-side surface has at least one inflection point. The seventh lens element with refractive power has an image-side surface being concave in a paraxial region, wherein an object-side surface and the image-side surface of the seventh lens element are both aspheric, and the image-side surface has at least one inflection point.

公开(公告)号：US20190271833A1

公开(公告)日：2019-09-05

申请号：US16414756

申请日：2019-05-16

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B27/00 ,  G02B9/62 ,  H04N5/335 ,  H04N5/225 ,  G02B13/18 ,  G02B3/04

Abstract: An image 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 has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element with negative refractive power has a concave object-side surface, wherein both of the surfaces of the fifth lens element are aspheric. The sixth lens element with refractive power has a concave image-side surface, wherein the image-side surface thereof has at least one inflection point, and both of the surfaces of the sixth lens element are aspheric. The image lens assembly has a total of six lens elements with refractive power.

公开(公告)号：US20190196153A1

公开(公告)日：2019-06-27

申请号：US16286384

申请日：2019-02-26

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B5/20 ,  G02B27/00 ,  G02B13/18 ,  H04N9/09 ,  H04N5/372 ,  G02B9/62 ,  G02B3/04 ,  H04N5/374 ,  H04N5/335

CPC classification number: G02B13/0045 ,  G02B3/04 ,  G02B5/208 ,  G02B9/62 ,  G02B13/18 ,  G02B27/0025 ,  H04N5/335 ,  H04N5/372 ,  H04N5/374 ,  H04N9/09

Abstract: An optical imaging system for pickup, sequentially arranged from an object side to an image side, comprising: the first lens element with positive refractive power having a convex object-side surface, the second lens element with refractive power, the third lens element with refractive power, the fourth lens element with refractive power, the fifth lens element with refractive power; the sixth lens element made of plastic, the sixth lens with refractive power having a concave image-side surface with both being aspheric, and the image-side surface having at least one inflection point.