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公开(公告)号：US11971601B2
公开(公告)日：2024-04-30
申请号：US17351423
申请日：2021-06-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Chen Lai , Chih-Wei Cheng , Ming-Ta Chou , Ming-Shun Chang
Abstract: An imaging lens assembly includes a plurality of optical elements and an accommodating assembly, wherein the accommodating assembly is for containing the optical elements. The accommodating assembly includes a conical-shaped light blocking sheet and a lens barrel. The conical-shaped light blocking sheet includes an out-side portion and a conical portion, and the conical portion is connected to the out-side portion. The conical portion includes a conical structure tapered from the out-side portion toward one of an object-side and an image-side along the optical axis. The lens barrel is disposed on one side of the conical portion. The optical elements include a most object-side optical element, a most image-side optical element and at least one optical element. The conical structure of the conical-shaped light blocking sheet is physically contacted with only one of the lens barrel, the most object-side optical element and the most image-side optical element.
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公开(公告)号：US10288852B2
公开(公告)日：2019-05-14
申请号：US15942856
申请日：2018-04-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yeo-Chih Huang , Ming-Shun Chang
Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
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公开(公告)号：US10234651B2
公开(公告)日：2019-03-19
申请号：US15925786
申请日：2018-03-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Shun Chang
IPC: G02B7/02
Abstract: An optical lens assembly includes a first lens element and a second lens element. The first lens element has at least one contacting surface. The second lens element has at least one contacting surface. The contacting surface of the first lens element comes in contact with the contacting surface of the second lens element, and at least one air duct is disposed on at least one of the contacting surface of the first lens element and the contacting surface of the second lens element.
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公开(公告)号：US09971129B2
公开(公告)日：2018-05-15
申请号：US15584058
申请日：2017-05-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yeo-Chih Huang , Ming-Shun Chang
CPC classification number: G02B13/008 , G02B1/041 , G02B5/003 , G02B5/208 , G02B13/0045 , H04M1/0264
Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
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公开(公告)号：US12066601B2
公开(公告)日：2024-08-20
申请号：US17192919
申请日：2021-03-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin-An Chang , Ming-Ta Chou , Cheng-Feng Lin , Ming-Shun Chang
CPC classification number: G02B13/0045 , G03B17/12
Abstract: An imaging lens element assembly includes a dual molded lens element. The dual molded lens element includes a transparent portion, a light absorbing portion and a step structure. The transparent portion, in order from a center to a peripheral region, includes an optical effective area and a transparent peripheral area, wherein an optical axis of the imaging lens element assembly passes through the optical effective area, and the transparent peripheral area surrounds the optical effective area. The light absorbing portion surrounds the optical effective area and is disposed on an object side of the transparent peripheral area and includes an object-end surface and an outer inclined surface. The object-end surface faces towards an object side of the light absorbing portion, and the outer inclined surface extends from the object-end surface to an image side of the light absorbing portion and is gradually far away from the optical axis.
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Patent Agency Ranking
公开(公告)号：US11994738B2
公开(公告)日：2024-05-28
申请号：US17732654
申请日：2022-04-29
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Jyun-Jia Cheng , Heng-Yi Su , Ming-Ta Chou , Ming-Shun Chang
CPC classification number: G02B7/022 , G02B7/021 , G02B13/0045
Abstract: An imaging lens assembly includes a plastic barrel and an optical element set. The optical element set includes an optical lens element, a light blocking sheet and a light-shielding layer. At least one surface of an object-side peripheral surface and an image-side peripheral surface of the optical lens element includes an annular side wall. An annular abutting surface of the light blocking sheet and the annular side wall of the optical lens element are disposed correspondingly to each other. The light-shielding layer surrounds a central opening of the light blocking sheet and includes an annular concave-curved portion. The annular concave-curved portion is for retaining the light blocking sheet, so that there is no relative displacement in a direction parallel to an optical axis between the annular abutting surface of the light blocking sheet and the annular side wall of the optical lens element.
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公开(公告)号：US11867887B2
公开(公告)日：2024-01-09
申请号：US17359168
申请日：2021-06-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Min-Chun Liao , Lin An Chang , Ming-Ta Chou , Jyun-Jia Cheng , Cheng-Feng Lin , Ming-Shun Chang
CPC classification number: G02B13/0065 , G02B5/22 , G02B23/08 , G03B17/17
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：US11762166B2
公开(公告)日：2023-09-19
申请号：US17563225
申请日：2021-12-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Shun Chang , Ming-Ta Chou , Wei-Hung Weng
IPC: G02B7/02
Abstract: A plastic lens barrel includes an object-end portion, an image-end portion and a tube portion. The object-end portion has an object-end outer surface, an object-end opening and an object-end inner surface, wherein one end of the object-end inner surface is connected to the object-end outer surface and surrounds the object-end opening. The image-end portion has an image-end outer surface and an image-end opening. The tube portion connected object-end portion and the image-end portion, and includes a plurality of tube inner surfaces. At least one of the tube inner surfaces and the object-end inner surface includes a plurality of annular convex structures. Each of the annular convex structures surrounds a central axis of the plastic lens barrel. A cross-sectional plane of each annular convex structure passing through the central axis includes a peak point and two valley point.
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公开(公告)号：US11567313B2
公开(公告)日：2023-01-31
申请号：US17098594
申请日：2020-11-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Shun Chang , Yu-Jen Chiu , Ming-Ta Chou
Abstract: An annular optical component includes a plastic element and a metal element disposed on the plastic element. The plastic element includes a plastic part, and the metal element includes a metal part. The plastic part surrounds a central axis of the annular optical component so as to form a central opening. An outer annular surface and an inner annular surface of the annular optical component are opposite to each other. An object-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. An image-side surface of the annular optical component faces an image-side direction of the annular optical component and is connected to the outer annular surface and the inner annular surface. The image-side surface and the object-side surface are opposite to each other.
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公开(公告)号：US11245824B2
公开(公告)日：2022-02-08
申请号：US16574248
申请日：2019-09-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Shun Chang , Ming-Ta Chou , Chun-Hua Tsai
Abstract: An optical lens assembly includes at least one dual molded lens element. The dual molded lens element has a central axis, and includes a light transmitting portion and a light absorbing portion. The light transmitting portion includes an optical effective region and a lens peripheral region, and the lens peripheral region surrounds the optical effective region. A light absorbing portion surrounds the optical effective region. The light transmitting portion and the light absorbing portion are made of different plastic materials with different colors, and the light absorbing portion includes at least three gate portions surrounding the central axis, wherein all gate portions are located on the same surface of the dual molded lens element. The light transmitting portion and the light absorbing portion of the dual molded lens element are integrally formed by the injection molding.
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