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公开(公告)号：US20190132498A1
公开(公告)日：2019-05-02
申请号：US16233223
申请日：2018-12-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Hua TSAI , Ming-Ta CHOU
CPC classification number: H04N5/2254 , G02B3/0075 , G02B7/02 , G02B7/021 , G02B13/001 , G02B13/16 , H04N5/225 , H04N5/2251 , H04N5/2257
Abstract: A plastic barrel including an object-end portion, a holder portion, and a tube portion is proposed. The object-end portion includes an outer object-end surface, an object-end hole, and an inner annular object-end surface. A part of the inner annular object-end surface is connected with the outer object-end surface and surrounding the object-end hole. The holder portion includes a bottom surface, a bottom hole, and an outer bottom side. The bottom surface surrounds the bottom hole and is connected with the outer bottom side. The holder portion further includes cut traces formed by partially removing gate portions. The tube portion includes inner annular surfaces and connects the object-end portion with the holder portion.
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公开(公告)号：US20190126575A1
公开(公告)日：2019-05-02
申请号：US15895107
申请日：2018-02-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Shun CHANG , Ming-Ta CHOU
CPC classification number: B29D11/00019 , G02B3/04 , G02B7/09 , G02B13/0025 , G02B27/646
Abstract: An imaging lens element includes an optical effective section, an outer diameter surface, at least two cut traces and at least two clearance surfaces. The optical effective section has an optical axis. The outer diameter surface surrounds the optical effective section. Each of the cut traces is shrunk from an outer diameter reference plane of the outer diameter surface toward a center of the imaging lens element. The clearance surfaces are connected between each of the cut traces and the outer diameter surface, respectively. At least one of the cut traces includes a first surface, and a curvature center of the first surface is closer to the center of the imaging lens element than the first surface to the center of the imaging lens element thereto.
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公开(公告)号：US20190011667A1
公开(公告)日：2019-01-10
申请号：US15782921
申请日：2017-10-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Shun CHANG , Ming-Ta CHOU
Abstract: An imaging lens element includes an effective optical section and an outer diameter section. The outer diameter section surrounds the effective optical section and includes an outer diameter curved surface, a withdrawn gate trace and a clearance surface. The outer diameter curved surface and the effective optical section are coaxial with respect to the optical axis. An outer diameter reference plane and the outer diameter curved surface are corresponding to each other with respect to the optical axis. The withdrawn gate trace is withdrawn from the outer diameter reference plane towards the optical axis and includes a gate trace curved surface. The clearance surface connects the outer diameter curved surface and the withdrawn gate trace. On a cross-sectional plane of the imaging lens element, a curvature center of the gate trace curved surface is closer to the optical axis than the gate trace curved surface is thereto.
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公开(公告)号：US20190011660A1
公开(公告)日：2019-01-10
申请号：US16128598
申请日：2018-09-12
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Hua TSAI , Ming-Ta CHOU , Ming-Shun CHANG
CPC classification number: G02B7/025 , G02B7/021 , H04N5/2254
Abstract: An imaging lens module includes a plastic barrel, an optical lens assembly and a glue material. The plastic barrel includes an outer object-end surface, an outer image-end surface and an inner tube surface. The inner tube surface connects the outer object-end surface and the outer image-end surface, and includes a plurality of parallel inner surfaces. A plurality of stripe structures are disposed on and protruded from at least one of the parallel inner surfaces, wherein the stripe structures are regularly arranged along a circumferential direction of the parallel inner surface. The optical lens assembly includes a plurality of optical elements disposed in the plastic barrel and arranged along the optical axis, wherein an outer annular surface of at least one of the optical elements is disposed correspondingly to the stripe structures. The glue material is applied among the outer annular surface and the stripe structures.
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公开(公告)号：US20180329176A1
公开(公告)日：2018-11-15
申请号：US16028169
申请日：2018-07-05
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Hsiang-Chi TANG , Ming-Ta CHOU
CPC classification number: G02B9/60 , G02B5/208 , G02B13/0045 , G02B13/18 , G02B27/0025
Abstract: A photographing optical lens assembly includes five lens elements with refractive power, in order from an object side to an image side. The first lens element with refractive power has a convex object-side surface. The second lens element with positive refractive power has an object-side surface and an image-side surface both being aspheric. The third lens element has positive refractive power. The fourth lens element with refractive power has a concave object-side surface. The fifth lens element with refractive power has an object-side surface and a concave image-side surface with at least one inflection point, both the object-side surface and the image-side surface being aspheric.
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Patent Agency Ranking
公开(公告)号：US20180292631A1
公开(公告)日：2018-10-11
申请号：US16009227
申请日：2018-06-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Shan CHEN , Tsung-Han TSAI , Ming-Ta CHOU
Abstract: An optical image 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 has positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.
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87.发明申请公开(公告)号：US20180292626A1
公开(公告)日：2018-10-11
申请号：US15687708
申请日：2017-08-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU
CPC classification number: G02B7/022 , G02B1/041 , G02B7/021 , G02B13/001 , G02B13/0035 , G02B13/0055 , G02B27/0018
Abstract: An imaging lens set includes a plastic lens element. The plastic lens element having a central axis includes an object-side surface and an image-side surface, wherein the image-side surface is located opposite to the object-side surface. Each of the object-side surface and the image-side surface includes an effective optical section and a lens peripheral section in order from the central axis to an edge of the plastic lens element. The effective optical section is for being passed through by an imaging light and aspheric. The lens peripheral section surrounds the effective optical section. At least one of the lens peripheral section of the object-side surface and the lens peripheral section of the image-side surface includes at least one annular groove structure, wherein the annular groove structure includes a plurality of stepped surfaces and is not in contact with the optical elements.
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公开(公告)号：US20180203210A1
公开(公告)日：2018-07-19
申请号：US15922871
申请日：2018-03-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin-Yao LIAO , Tsung-Han TSAI , Ming-Ta CHOU
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/002 , G02B13/18 , G02B27/0025
Abstract: An optical image 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 and a concave image-side surface. The second lens element, the third lens element, and the fourth lens element have refractive power. The fifth lens element with positive refractive power is made of plastic, and has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric. The sixth lens element with refractive power is made of plastic, and has a concave image-side surface, wherein the image-side surface thereof changes from concave at a paraxial region to convex at a peripheral region, and the surfaces thereof are aspheric.
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公开(公告)号：US20180129017A1
公开(公告)日：2018-05-10
申请号：US15465786
申请日：2017-03-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin HUANG , Hsiang-Chi TANG , Ming-Ta CHOU
CPC classification number: G02B13/006 , G02B1/041 , G02B7/022 , G02B7/025 , G02B13/0045 , H04M1/0266
Abstract: A plastic optical lens assembly includes a first lens element, a second lens element and a cementing glue coating. A first spacing section is located between a first optical effective portion and a first engaging structure. A second optical effective portion is disposed correspondingly to the first optical effective portion. A second spacing section is located between the second optical effective portion and a second engaging structure. The first engaging structure is engaged with the second engaging structure. A reference space is between the first and the second spacing section. The cementing glue coating is at least disposed between the first and the second optical effective portions, and the first and the second lens elements are cemented by the cementing glue coating.
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公开(公告)号：US20180067286A1
公开(公告)日：2018-03-08
申请号：US15796868
申请日：2017-10-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tsung-Han TSAI , Ming-Ta CHOU
CPC classification number: G02B13/0045 , G02B3/04 , G02B5/005 , G02B9/64 , G02B13/02 , G02B13/04 , G02B13/18 , G02B13/22 , G02B27/0025 , H04N5/2254
Abstract: An image lens assembly 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, a sixth lens element and a seventh lens element. The first lens element with negative 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 has refractive power. The sixth lens element with refractive power is made of plastic material, wherein at least one surface of the sixth lens element is aspheric. The seventh lens element with refractive power made of plastic material has a concave image-side surface changing from concave in a paraxial region to convex in a peripheral region, and at least one surface thereof is aspheric.
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