-
公开(公告)号：US10705331B2
公开(公告)日：2020-07-07
申请号：US16035914
申请日：2018-07-16
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.
-
公开(公告)号：US10578839B2
公开(公告)日：2020-03-03
申请号：US16251320
申请日：2019-01-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , I-Wei Lai , Ming-Ta Chou
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.
-
公开(公告)号：US10564382B2
公开(公告)日：2020-02-18
申请号：US16558202
申请日：2019-09-02
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.
-
公开(公告)号：US10558013B2
公开(公告)日：2020-02-11
申请号：US15615923
申请日：2017-06-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta Chou , Cheng-Feng Lin
Abstract: An annular optical element assembly having a central axis includes a first annular optical element, a second annular optical element and a light blocking sheet. The first annular optical element includes a first central opening, a first axial connecting structure and a first inner receiving surface. The second annular optical element includes a second central opening, a second axial connecting structure and a second inner receiving surface. The second inner receiving surface surrounds the second central opening, wherein the second inner receiving surface is closer to the central axis than a second axial connecting surface is to the central axis, the second inner receiving surface is vertical to the central axis, and the first inner receiving surface and the second inner receiving surface are corresponding and not connected to each other for defining a receiving space.
-
公开(公告)号：US20190155001A1
公开(公告)日：2019-05-23
申请号：US16251320
申请日：2019-01-18
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.
-
Patent Agency Ranking
公开(公告)号：US10234658B2
公开(公告)日：2019-03-19
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
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.
-
公开(公告)号：US10197761B2
公开(公告)日：2019-02-05
申请号：US15823405
申请日：2017-11-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Wei-Che Tung , Ming-Ta Chou
Abstract: An annular optical spacer includes a first side portion, a second side portion, an outer annular portion and an inner annular portion. The second side portion is disposed opposite to the first side portion. The outer annular portion connects the first side portion and the second side portion. The inner annular portion connects the first side portion and the second side portion, wherein the inner annular portion is closer to a central axis of the annular optical spacer than the outer annular portion. The inner annular portion includes a plurality of annular grooves, wherein the annular grooves are disposed coaxially to the central axis, and each of the annular grooves includes a plurality of stepped surfaces.
-
公开(公告)号：US10054789B2
公开(公告)日：2018-08-21
申请号：US15429479
申请日：2017-02-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta Chou , Cheng-Feng Lin
CPC classification number: G02B27/0018 , G02B5/208 , G02B7/021 , G02B7/022 , G02B13/001
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.
-
公开(公告)号：US20180129040A1
公开(公告)日：2018-05-10
申请号：US15866733
申请日：2018-01-10
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.
-
公开(公告)号：US20180003916A1
公开(公告)日：2018-01-04
申请号：US15241111
申请日：2016-08-19
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Ming-Ta Chou , Wei-Hung Weng
IPC: G02B7/02
Abstract: A plastic barrel includes an object-end portion, an image-end portion, a tube portion and a plurality of wedge structures. The object-end portion includes an outer object-end surface, an object-end hole and an inner annular object-end surface. The image-end portion includes an outer image-end surface, an image-end opening and an inner annular image-end surface. The tube portion connects the object-end portion and the image-end portion, and includes a plurality of inclined surfaces. The wedge structures are disposed on at least one surface of the inner annular object-end surface, the inner annular image-end surface and the inclined surfaces, wherein the wedge structures are regularly arranged around the central axis, and each of the wedge structures includes an acute end and a tapered section. The tapered section connects the surface, which the wedge structure is disposed on, and the acute end.
-
-
-
-
-
-
-
-
-
Search Results
80
records
(took 0.025 seconds)
