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公开(公告)号：US10656377B2
公开(公告)日：2020-05-19
申请号：US16385135
申请日：2019-04-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Ming-Ta Chou
Abstract: An imaging lens set includes three plastic lens elements, which are a first lens element, a second lens element and a third lens element, and a light blocking sheet. The first lens element includes a first flat abutting portion and a first conical surface. The second lens element includes a second flat abutting portion, a second conical surface, a fourth flat abutting portion and a fourth conical surface. The third lens element includes a third flat abutting portion and a third conical surface. The first flat abutting portion is abutted with the second flat abutting portion, the first conical surface contacts with the second conical surface, and the third conical surface contacts with the fourth conical surface. The light blocking sheet is abutted with the third flat abutting portion and the fourth flat abutting portion, respectively.
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公开(公告)号：US10444464B2
公开(公告)日：2019-10-15
申请号：US15869359
申请日：2018-01-12
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Ming-Ta Chou
Abstract: An imaging lens assembly includes a plastic barrel and a lens set, and the lens set is disposed in the plastic barrel. The plastic barrel includes an object-side outer surface, a first inner surface and a second inner surface. The lens set has an optical axis, and includes, in order from an object side to an image side thereof, at least one plastic lens element and a spacer. A light-absorbing coating is disposed on the plastic lens element. The spacer includes an object-side connecting surface and a relative surface. When the object-side connecting surface is connected with a neighboring object-side optical element, the relative surface is out of touch with the neighboring object-side optical element. There is an overlap between the second inner surface and the relative surface along a direction parallel to the optical axis.
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公开(公告)号：US10302903B2
公开(公告)日：2019-05-28
申请号：US15861859
申请日：2018-01-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Ming-Ta Chou
Abstract: An imaging lens set includes three plastic lens elements, which are a first lens element, a second lens element and a third lens element, and a light blocking sheet. The first lens element includes a first flat abutting portion and a first conical surface. The second lens element includes a second flat abutting portion, a second conical surface, a fourth flat abutting portion and a fourth conical surface. The third lens element includes a third flat abutting portion and a third conical surface. The first flat abutting portion is abutted with the second flat abutting portion, the first conical surface contacts with the second conical surface, and the third conical surface contacts with the fourth conical surface. The light blocking sheet is abutted with the third flat abutting portion and the fourth flat abutting portion, respectively.
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公开(公告)号：US20190154995A1
公开(公告)日：2019-05-23
申请号：US16251291
申请日：2019-01-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Chun-Hua Tsai , Ming-Ta Chou
Abstract: An imaging lens module includes an imaging lens assembly and a first optical component. The imaging lens assembly has an optical axis and includes a lens element. The lens element includes an effective optical portion, which is non-circular and disposed on a center of the lens element. The first optical component has a non-circular opening hole. The effective optical portion of the lens element of the imaging lens assembly is corresponded to the non-circular opening hole of the first optical component.
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公开(公告)号：US20180003959A1
公开(公告)日：2018-01-04
申请号：US15241120
申请日：2016-08-19
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Wei-Hung Weng , Ming-Ta Chou
CPC classification number: G02B27/0018 , G02B7/021 , G02B7/025 , G02B13/004 , G02B13/0055
Abstract: An annular optical element includes an outer annular surface, an inner annular surface, a first side surface, a second side surface and a plurality of strip-shaped wedge structures. The outer annular surface surrounds a central axis of the annular optical element and includes at least two shrunk portions. The first side surface connects the outer annular surface and the inner annular surface. The second side surface connects the outer annular surface and the inner annular surface, wherein the second side surface is disposed correspondingly to the first side surface. The strip-shaped wedge structures are disposed on the inner annular surface, wherein each of the strip-shaped wedge structures is disposed along a direction from the first side surface towards the second side surface and includes an acute end and a tapered portion connecting the inner annular surface and the acute end.
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Patent Agency Ranking
公开(公告)号：US20170322395A1
公开(公告)日：2017-11-09
申请号：US15201668
申请日：2016-07-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , I-Wei Lai , Ming-Ta Chou
CPC classification number: G02B13/0055 , G02B1/041 , G02B1/11 , G02B5/003 , G02B5/005 , G02B7/025 , G02B13/002
Abstract: An imaging lens assembly includes a plurality of lens elements, wherein at least one of the lens elements is a dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion. The light transmitting portion includes an effective optical section. The light absorbing portion is located on at least one surface of an object-side surface and an image-side surface of the dual molded lens element, wherein a plastic material and a color of the light absorbing portion are different from a plastic material and a color of the light transmitting portion, and the light absorbing portion includes an opening. The opening is non-circular and disposed correspondingly to the effective optical section.
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公开(公告)号：US09354444B2
公开(公告)日：2016-05-31
申请号：US14265350
申请日：2014-04-29
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin
CPC classification number: G02B27/0018 , G02B5/003 , G02B5/005 , G02B7/021 , G02B13/001
Abstract: An annular optical spacer includes an outer annular surface, an inner annular surface, a first side surface, a second side surface and a plurality of protruding structures. The inner annular surface surrounds a central axis of the annular optical spacer and is opposite to the outer annular surface. The first side surface connects the outer annular surface with the inner annular surface. The second side surface connects the outer annular surface with the inner annular surface and is opposite to the first side surface. The protruding structures are regularly disposed on the inner annular surface. Each of the protruding structures extends along a direction from the first side surface to the second side surface and is integrated with the inner annular surface.
Abstract translation: 环形光学间隔件包括外环形表面，内环形表面，第一侧表面，第二侧表面和多个突出结构。 内环形表面围绕环形光学间隔件的中心轴线并且与外环形表面相对。 第一侧表面将外环形表面与内环形表面连接。 第二侧表面将外环形表面与内环形表面连接并且与第一侧表面相对。 突出结构规则地设置在内环形表面上。 每个突出结构沿着从第一侧表面到第二侧表面的方向延伸并且与内环形表面一体化。
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公开(公告)号：US09341813B1
公开(公告)日：2016-05-17
申请号：US14592949
申请日：2015-01-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Chun-Hua Tsai , Ming-Ta Chou
IPC: G02B9/04
CPC classification number: G02B13/0045 , G02B1/041 , G02B5/005 , G02B7/021 , G02B7/022 , G02B9/04 , G02B9/60
Abstract: An imaging lens module includes an imaging lens assembly and a first optical component. The imaging lens assembly has an optical axis and includes a lens element. The lens element includes an effective optical portion, which is non-circular and disposed on a center of the lens element. The first optical component has a non-circular opening hole. The effective optical portion of the lens element of the imaging lens assembly is corresponded to the non-circular opening hole of the first optical component.
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公开(公告)号：US12253656B2
公开(公告)日：2025-03-18
申请号：US18518314
申请日：2023-11-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Min-Chun Liao , Lin An Chang , Ming-Ta Chou , Jyun-Jia Cheng , Cheng-Feng Lin , Ming-Shun Chang
Abstract: A light-folding element includes an object-side surface, an image-side surface, a reflection surface and a connection surface. The reflection surface is configured to reflect imaging light passing through the object-side surface to the image-side surface. The connection surface is connected to the object-side, image-side and reflection surfaces. The light-folding element has a recessed structure located at the connection surface. The recessed structure is recessed from the connection surface an includes a top end portion, a bottom end portion and a tapered portion located between the top end and bottom end portions. The top end portion is located at an edge of the connection surface. The tapered portion has two tapered edges located on the connection surface. The tapered edges are connected to the top end and bottom end portions. A width of the tapered portion decreases in a direction from the top end portion towards the bottom end portion.
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公开(公告)号：US12228785B2
公开(公告)日：2025-02-18
申请号：US18342782
申请日：2023-06-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Ming-Ta Chou
Abstract: An imaging lens assembly includes a plastic barrel and a lens set, and the lens set is disposed in the plastic barrel. The plastic barrel includes an object-side outer surface, a first inner surface and a second inner surface. The lens set has an optical axis, and includes, in order from an object side to an image side thereof, at least one plastic lens element and a spacer. A light-absorbing coating is disposed on the plastic lens element. The spacer includes an object-side connecting surface and a relative surface. When the object-side connecting surface is connected with a neighboring object-side optical element, the relative surface is out of touch with the neighboring object-side optical element. There is an overlap between the second inner surface and the relative surface along a direction parallel to the optical axis.
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