-
公开(公告)号：US11086093B2
公开(公告)日：2021-08-10
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
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.
-
公开(公告)号：US11016221B2
公开(公告)日：2021-05-25
申请号：US16024472
申请日：2018-06-29
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta Chou , Ruei-Yang Luo
Abstract: An annular optical component includes an inner surface, an outer surface, an object-side surface and an image-side surface. The inner surface includes a molded anti-reflective layer structure surrounding a central axis of the annular optical component. The molded anti-reflective layer structure defines a central aperture. The outer surface includes a frame structure surrounding at least a part of the molded anti-reflective layer structure. A hardness of the frame structure is larger than a hardness of the molded anti-reflective layer structure. The object-side surface and the image-side surface respectively face toward an object side and an image side of the annular optical component. The molded anti-reflective layer structure is joined with the frame structure. The molded anti-reflective layer structure includes a tapered portion adjacent to the central aperture, and the tapered portion tapers off along a direction from the outer surface toward the inner surface.
-
公开(公告)号：US10935801B2
公开(公告)日：2021-03-02
申请号：US16708506
申请日：2019-12-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi Tang , Cheng-Chen Lin , Ming-Ta Chou
Abstract: An imaging lens assembly includes a plastic barrel and an imaging lens set. The plastic barrel includes an object-side aperture and a first annular surface. The imaging lens set includes a plurality of optical elements, wherein at least one of the optical elements is a plastic lens element, and the plastic lens element includes an effective optical portion, a peripheral portion, a second annular surface, and an object-side connecting surface. The peripheral portion is formed around the effective optical portion. The second annular surface is formed on an object-side surface of the plastic lens element and surrounds the effective optical portion. The object-side connecting surface is formed on the object-side surface of the plastic lens element and surrounds the effective optical portion, and the object-side connecting surface is connected with one of the optical elements disposed on an object side of the plastic lens element.
-
公开(公告)号：US10884218B2
公开(公告)日：2021-01-05
申请号：US16726997
申请日：2019-12-26
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：US10795135B2
公开(公告)日：2020-10-06
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.
-
Patent Agency Ranking
66.发明授权公开(公告)号：US10746972B2
公开(公告)日：2020-08-18
申请号：US16152583
申请日：2018-10-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta Chou
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.
-
公开(公告)号：US10712527B2
公开(公告)日：2020-07-14
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
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.
-
公开(公告)号：US10698199B2
公开(公告)日：2020-06-30
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
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：US10574869B2
公开(公告)日：2020-02-25
申请号：US16004474
申请日：2018-06-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Hua Tsai , Ming-Ta Chou
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.
-
公开(公告)号：US10451852B2
公开(公告)日：2019-10-22
申请号：US15201656
申请日：2016-07-05
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.
-
-
-
-
-
-
-
-
-
Search Results
259
records
(took 0.023 seconds)
