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公开(公告)号：US20200341228A1
公开(公告)日：2020-10-29
申请号：US16812507
申请日：2020-03-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Lin-An CHANG , Ming-Ta CHOU
IPC: G02B7/02
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：US20200310074A1
公开(公告)日：2020-10-01
申请号：US16780967
申请日：2020-02-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Lin-An CHANG , Ming-Ta CHOU
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：US20200301098A1
公开(公告)日：2020-09-24
申请号：US16898545
申请日：2020-06-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU
Abstract: A lens module with auto-focusing mechanism includes a plastic lens barrel, a lens assembly, an auto-focusing mechanism and a coil regulating structure. The plastic lens barrel includes a front end portion, a rear end portion and an outer side portion, wherein the front end portion includes a front end surface and a front end hole, the rear end portion includes a rear end opening, the outer side portion connects the front end portion and the rear end portion. The lens assembly is disposed in the plastic lens barrel, and includes a plurality of lens elements. The auto-focusing mechanism is connected to the plastic lens barrel, and includes a coil being polygon. The coil regulating structure is located on the outer side portion of the plastic lens barrel, and is integrated with the plastic lens barrel, wherein the coil is connected and positioned to the coil regulating structure.
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34.发明申请公开(公告)号：US20200292808A1
公开(公告)日：2020-09-17
申请号：US16885352
申请日：2020-05-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU , Cheng-Feng LIN
Abstract: An optical lens module includes a lens assembly and a plastic barrel. The lens assembly includes a plurality of lens elements and is disposed in the plastic barrel. The plastic barrel includes an object-end portion, an image-end portion, an outer tube portion, an inner tube portion and at least one reflection reduction area. The image-end portion includes an image-end opening. The inner tube portion includes a plurality of parallel inner surfaces and a plurality of inclined inner surfaces, wherein the parallel inner surfaces are parallel to the central axis, and each of the inclined inner surfaces has an angle with the central axis. The reflection reduction area is disposed on one of the inclined inner surfaces closest to the image-end opening, wherein the reflection reduction area and the plastic barrel are integrally formed by an injection molding method.
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公开(公告)号：US20200003999A1
公开(公告)日：2020-01-02
申请号：US16565830
申请日：2019-09-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU , I-Wei LAI
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 and a first annular surface. 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 and a second annular surface. A step surface of the second annular surface is formed by the first annular surface and the second annular surface.
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Patent Agency Ranking
公开(公告)号：US20200003998A1
公开(公告)日：2020-01-02
申请号：US16565814
申请日：2019-09-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU , I-Wei LAI
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 and a first annular surface. 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 and a second annular surface. A step surface of the second annular surface is formed by the first annular surface and the second annular surface.
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公开(公告)号：US20190339494A1
公开(公告)日：2019-11-07
申请号：US16517660
申请日：2019-07-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tsung-Han TSAI , Ming-Ta CHOU
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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公开(公告)号：US20190285825A1
公开(公告)日：2019-09-19
申请号：US16431933
申请日：2019-06-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU
Abstract: A plastic barrel includes an object-end portion, an image-end portion and a tube portion. The object-end portion includes an object-end surface and an object-end hole, wherein the object-end surface includes a plurality of annular grooves, which are disposed coaxially to a central axis, and each of the annular grooves includes a stepped surface. The image-end portion includes an image-end opening. The tube portion connects the object-end portion and the image-end portion.
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公开(公告)号：US20190219790A1
公开(公告)日：2019-07-18
申请号：US16360159
申请日：2019-03-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng LIN , Wei-Hung WENG , Ming-Ta CHOU
CPC classification number: G02B7/021 , G02B7/022 , G02B13/001 , G02B13/0045
Abstract: A plastic barrel includes an object-end portion, an image-end portion, an inner tube portion and a plurality of protrusions. The object-end portion includes an outer object-end surface, an object-end hole and an inner annular object-end surface. One side of the inner annular object-end surface is connected to the outer object-end surface and surrounds the object-end hole. The image-end portion includes an outer image-end surface, an image-end opening and an inner annular image-end surface. The inner annular image-end surface is connected to the outer image-end surface and surrounds the image-end opening. The inner tube portion connects the object-end portion and the image-end portion and includes a plurality of inclined surfaces. The protrusions are disposed at least on one of the inner annular object-end surface, the inner annular image-end surface and the inclined surfaces, wherein the protrusions are regularly arranged around the central axis of the plastic barrel.
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40.发明申请公开(公告)号：US20190041608A1
公开(公告)日：2019-02-07
申请号：US16152583
申请日：2018-10-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU
CPC classification number: G02B13/006 , G02B1/041 , G02B5/003 , G02B7/022 , G02B13/0045
Abstract: An optical lens assembly includes at least one lens element, which is a dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion. The light absorbing portion is annular and surrounds a central axis, 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, the dual molded lens element is made by an injection molding method and formed integrally, the light absorbing portion includes a plurality of second inner strip-shaped structures, the second inner strip-shaped structures are regularly arranged along a circumferential direction of the central axis, and the second inner strip-shaped structures are disposed correspondingly to and connected to a plurality of first inner strip-shaped structures.
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