公开(公告)号：US20200150400A1

公开(公告)日：2020-05-14

申请号：US16745229

申请日：2020-01-16

Applicant: LARGAN PRECISION CO.,LTD.

Inventor： Yu-Tai TSENG ,  Tung-Yi HSIEH ,  Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B9/60

Abstract: A photographing lens assembly includes five 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 and a fifth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region. The second lens element has an object-side surface being concave in a paraxial region. The third lens element has an object-side surface being convex in a paraxial region. The fourth lens element has an object-side surface being concave in a paraxial region, wherein two surfaces thereof are both aspheric. The fifth lens element has an object-side surface and an image-side surface being both aspheric. At least one surface of the lens elements has at least one inflection point.

公开(公告)号：US20180143403A1

公开(公告)日：2018-05-24

申请号：US15459576

申请日：2017-03-15

Applicant: LARGAN Precision Co., Ltd.

Inventor： Yu-Tai TSENG ,  Tung-Yi HSIEH ,  Hsin-Hsuan HUANG

IPC: G02B13/00 ,  G02B9/60

CPC classification number: G02B13/0045 ,  G02B9/60 ,  G02B13/0065

Abstract: A photographing lens assembly includes five 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 and a fifth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region. The second lens element has an object-side surface being concave in a paraxial region. The third lens element has an object-side surface being convex in a paraxial region. The fourth lens element has an object-side surface being concave in a paraxial region, wherein two surfaces thereof are both aspheric. The fifth lens element has an object-side surface and an image-side surface being both aspheric. At least one surface of the lens elements has at least one inflection point.

公开(公告)号：US20170227742A1

公开(公告)日：2017-08-10

申请号：US15164902

申请日：2016-05-26

Applicant: LARGAN PRECISION CO., LTD.

Inventor： Tung-Yi HSIEH ,  Wei-Yu CHEN

IPC: G02B13/14

CPC classification number: G02B13/14 ,  G02B27/0006 ,  G02B27/027

Abstract: A lens assembly includes at least three lens elements. One lens element closest to an imaged object of the lens elements is a first lens element, which is made of an electromagnetic radiation absorbing material.

公开(公告)号：US20170153416A1

公开(公告)日：2017-06-01

申请号：US14991485

申请日：2016-01-08

Applicant: LARGAN Precision Co.,Ltd.

Inventor： Tung-Yi HSIEH ,  Hsin-Hsuan HUANG

IPC: G02B9/62 ,  G02B27/00 ,  H04N5/225 ,  G02B13/00

CPC classification number: G02B13/0045 ,  G02B13/005 ,  G02B13/06

Abstract: A photographing optical 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 has negative refractive power. The second lens element has negative refractive power. The fourth lens element has positive refractive power. The fifth lens element has positive refractive power. The sixth lens element has negative refractive power. The photographing optical lens assembly has a total of six lens elements, and the photographing optical lens assembly further includes an aperture stop.