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公开(公告)号：US20240111121A1
公开(公告)日：2024-04-04
申请号：US18537938
申请日：2023-12-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Lin-An CHANG , Ming-Ta CHOU
IPC: G02B7/02
Abstract: An imaging lens module includes a plastic lens barrel, a first optical element assembly and a second optical element assembly, wherein both of the first optical element assembly and the second optical element assembly are disposed in the plastic lens barrel. The plastic lens barrel includes a first inner annular surface and a second inner annular surface. The first inner annular surface forms a first receiving space. The second inner annular surface forms a second receiving space. The first optical element assembly is disposed in the first receiving space and includes a plurality of optical lens elements and a first retainer. The second optical element assembly is disposed in the second receiving space and includes a first light blocking sheet and a second retainer.
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公开(公告)号：US20180299648A1
公开(公告)日：2018-10-18
申请号：US15698789
申请日：2017-09-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Chien-Hsun WU , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/60
Abstract: An image capturing lens assembly 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 with negative refractive power has an image-side surface being concave in a paraxial region thereof. The second lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof and includes at least one convex critical point in an off-axis region thereof.
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公开(公告)号：US20230305274A1
公开(公告)日：2023-09-28
申请号：US18205524
申请日：2023-06-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Chun-Che HSUEH , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/06
Abstract: An optical imaging lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave and an image-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.
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公开(公告)号：US20230185051A1
公开(公告)日：2023-06-15
申请号：US18164668
申请日：2023-02-06
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Lin-An CHANG , Ming-Ta CHOU
Abstract: An imaging lens module has an optical axis, an object side and an image side. The imaging lens module includes a plastic barrel, an optical lens assembly, an image-side assembled element and a light blocking element assembly. The plastic barrel includes a first contacting surface, which is close to an image-side end of the plastic barrel. The image-side assembled element is disposed close to the image-side end of the plastic barrel. The image-side assembled element is in a tube shape and extends from the object side to the image side. The image-side assembled element includes a second contacting surface and an inner protruding portion, and the second contacting surface is disposed close to an object-side end of the image-side assembled element and correspondingly to the first contacting surface. The plastic barrel and the image-side assembled element contact each other via the first contacting surface and the second contacting surface.
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公开(公告)号：US20180172961A1
公开(公告)日：2018-06-21
申请号：US15496098
申请日：2017-04-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Wei-Yu CHEN
CPC classification number: G02B13/18 , B60K2350/106 , B60K2350/2013 , G02B5/208 , G02B9/62 , G02B13/06
Abstract: An image capturing lens system 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 has positive refractive power.
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Patent Agency Ranking
公开(公告)号：US20180095243A1
公开(公告)日：2018-04-05
申请号：US15363885
申请日：2016-11-29
Applicant: LARGAN Precision Co., Ltd.
Inventor： Chien-Hsun WU , Tzu-Chieh KUO
CPC classification number: G02B13/004 , G02B5/005 , G02B5/208 , G02B9/34 , G02B27/0025
Abstract: An optical imaging 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 and a fourth 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 has negative refractive power. The third lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The fourth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, the image-side surface of the fourth lens element has at least one convex critical point in an off-axial region thereof, and the two surfaces thereof are both aspheric. The optical imaging lens system has a total of four lens elements.
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公开(公告)号：US20200371318A1
公开(公告)日：2020-11-26
申请号：US16993128
申请日：2020-08-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Chun-Che HSUEH , Wei-Yu CHEN
Abstract: An optical imaging lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave and an image-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.
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公开(公告)号：US20190129146A1
公开(公告)日：2019-05-02
申请号：US15867469
申请日：2018-01-10
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chien-Hsun WU , Chun-Che HSUEH , Wei-Yu CHEN
Abstract: An optical imaging lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave and an image-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.
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公开(公告)号：US20240231057A9
公开(公告)日：2024-07-11
申请号：US18372598
申请日：2023-09-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ssu-Hsin LIU , Chen Wei FAN , Chien-Hsun WU , Wen-Yu TSAI , Ming-Ta CHOU
CPC classification number: G02B13/0065 , G02B1/04 , G02B1/115
Abstract: An optical path folding element includes a main body, a light absorption film layer and a matte structure. The main body has optical surface including an incident surface, a reflective surface and an emitting surface. A light enters into the optical folding element through the incident surface. The reflective surface reflects the light so as to change a traveling direction thereof. The light exits the optical folding element through the emitting surface. The light absorbing film layer is configured to reduce reflectance and provided adjacent to at least part of the optical surface, and the light absorbing film layer is in physical contact with the main body. The matte structure is disposed adjacent to at least part of the optical surface. The matte structure provides an undulating profile on a surface of the optical path folding element, and the matte structure is formed in one-piece with the main body.
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公开(公告)号：US20240134167A1
公开(公告)日：2024-04-25
申请号：US18372598
申请日：2023-09-24
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ssu-Hsin LIU , Chen Wei FAN , Chien-Hsun WU , Wen-Yu TSAI , Ming-Ta CHOU
CPC classification number: G02B13/0065 , G02B1/04 , G02B1/115
Abstract: An optical path folding element includes a main body, a light absorption film layer and a matte structure. The main body has optical surface including an incident surface, a reflective surface and an emitting surface. A light enters into the optical folding element through the incident surface. The reflective surface reflects the light so as to change a traveling direction thereof. The light exits the optical folding element through the emitting surface. The light absorbing film layer is configured to reduce reflectance and provided adjacent to at least part of the optical surface, and the light absorbing film layer is in physical contact with the main body. The matte structure is disposed adjacent to at least part of the optical surface. The matte structure provides an undulating profile on a surface of the optical path folding element, and the matte structure is formed in one-piece with the main body.
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