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公开(公告)号：US20230204828A1
公开(公告)日：2023-06-29
申请号：US17827592
申请日：2022-05-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Pang CHANG , Chen Wei FAN , Ssu-Hsin LIU , Wen-Yu TSAI , Ming-Ta CHOU
Abstract: An imaging lens includes a lens element, a light blocking sheet, and a lens barrel accommodating the lens element and the light blocking sheet. The light blocking sheet includes a first object-side surface, a first image-side surface, a first inner ring surface, a first microstructure, and a first nanostructure layer. The first image-side surface is opposite to the first object-side surface. The first inner ring surface is located between the first object-side surface and the first image-side surface and defines a first light passage opening. The first microstructure is disposed on the first object-side surface or the first image-side surface. The first microstructure has a plurality of protrusions. The first nanostructure layer is disposed on the first inner ring surface. The first nanostructure layer has a plurality of ridge-like protrusions extending non-directionally.
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公开(公告)号：US20230176447A1
公开(公告)日：2023-06-08
申请号：US17832470
申请日：2022-06-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chen Wei FAN , Ming-Ta CHOU , Te-Sheng TSENG , Chen-Yi HUANG
CPC classification number: G03B5/02 , H04N5/2254 , H04N5/23287 , G03B2205/0069
Abstract: A photographing module includes a lens assembly, a reflection element, an image sensor, and lens element, reflection element and image sensor driving modules. An axial voice coil motor of the lens element driving module moves the lens assembly along a lens optical axis. A rotating connection part and a curved recess structure are disposed between a holder and a carrier movable relative to the holder. A lateral voice coil motor of the reflection element driving module drives the carrier carrying the reflection element to rotate around an axis passing through the rotating connection part. A plurality of rollable elements are located between and in contact with the fixed member and the movable plate. A lateral voice coil motor of the image sensor driving module drives the movable plate carrying the image sensor to move based on a dynamic axis orthogonal to the lens optical axis.
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公开(公告)号：US20230115906A1
公开(公告)日：2023-04-13
申请号：US17933885
申请日：2022-09-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Pei-Chi CHANG , Chien-Pang CHANG , Yu-Chen LAI , Ming-Ta CHOU , Wen-Yu TSAI , Kuo-Chiang CHU
Abstract: An imaging optical system includes an infrared light absorbing element, an infrared light reducing film and a plate element in order along a paraxial path. The infrared light absorbing element is made of an infrared light absorbing plastic material, and the infrared light absorbing element is configured to refract a light. The infrared light reducing film is closer to an image surface of the imaging optical system than an incident surface of the infrared light absorbing element to the image surface of the imaging optical system. The plate element is disposed between the infrared light reducing film and the image surface, the plate element includes a translucent portion, a holder portion and a taper structure coating. The taper structure coating is disposed on at least one of an incident surface and an exit surface of the translucent portion.
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公开(公告)号：US20230045146A1
公开(公告)日：2023-02-09
申请号：US17517474
申请日：2021-11-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin HUANG , Lin An CHANG , Ming-Ta CHOU , Chun-Hua TSAI
Abstract: An imaging lens system includes a lens barrel element and an imaging lens assembly disposed on the lens barrel element and including a first imaging lens element, a spacer element and a second imaging lens element. The spacer element has a second object-side contact surface corresponding to a first image-side contact surface of the first imaging lens element. The second imaging lens element has a third object-side contact surface corresponding to a second image-side contact surface of the spacer element. The lens barrel element and the spacer element form a buffer structure closer to an optical axis than the first image-side contact surface and including a first gap and a second gap located closer to the optical axis than the first gap. The first gap overlaps the third object-side contact surface in a direction parallel to the optical axis. A step difference is between the first and second gaps.
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公开(公告)号：US20220400193A1
公开(公告)日：2022-12-15
申请号：US17747015
申请日：2022-05-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Chien-Pang CHANG , Lin-An CHANG , Ming-Ta CHOU , Kuo-Chiang CHU
Abstract: A camera module includes an imaging lens assembly, an image sensor and an optical plate. The image sensor is disposed on an image surface of the imaging lens assembly. The optical plate is disposed between the imaging lens assembly and the image sensor, and includes a substrate and at least one anti-reflection layer. The substrate has an object-side surface and an image-side surface, the object-side surface faces towards an object side, the image-side surface faces towards an image side, and the object-side surface is parallel with the image-side surface. The at least one anti-reflection layer is disposed on the object-side surface or the image-side surface of the substrate, the anti-reflection layer includes a nanocrystal structure layer and an optical-connecting layer, wherein the nanocrystal structure layer includes a metal oxide crystal, the optical-connecting layer connects the substrate and the nanocrystal structure layer.
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Patent Agency Ranking
公开(公告)号：US20220373715A1
公开(公告)日：2022-11-24
申请号：US17711168
申请日：2022-04-01
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Chien-Pang CHANG , Ming-Ta CHOU , Kuo-Chiang CHU
Abstract: A plastic light-folding element includes an incident surface, an exit surface, a reflective surface and a reflective optical layer. The incident surface and the exit surface are configured to lead an imaging light enter and exit the plastic light-folding element, respectively. The reflective surface is configured to fold the imaging light. The reflective optical layer is disposed on the reflective surface, and includes an Ag layer, a bottom layer optical film and a top layer optical film. The bottom layer optical film is contacted with the Ag layer, and the bottom layer optical film is closer to the reflective surface than the Ag layer to the reflective surface. A refractive index of the top layer optical film is lower than a refractive index of the bottom layer optical film, and the top layer optical film is not contacted with the Ag layer.
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公开(公告)号：US20220365321A1
公开(公告)日：2022-11-17
申请号：US17709677
申请日：2022-03-31
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Heng-Yi SU , Yi-Jie CHEN , Ming-Ta CHOU
Abstract: An imaging lens assembly has an optical axis, and includes at least one radial reduction lens element and a light blocking element. The radial reduction lens element includes an effective optical portion and a peripheral portion. The effective optical portion includes a reduction part shrinking from a portion of the effective optical portion towards the optical axis so that the effective optical portion is non-circular. The peripheral portion and the reduction part are disposed at interval. The light blocking element includes a receiving structure and an extending light blocking structure. The extending light blocking structure and the receiving structure are disposed at interval, and the extending light blocking structure is connected to the receiving structure so that the effective optical portion is non-circular.
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68.发明申请公开(公告)号：US20220334343A1
公开(公告)日：2022-10-20
申请号：US17527220
申请日：2021-11-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Heng-Yi SU , Ming-Ta CHOU , Cheng-Feng LIN , Ming-Shun CHANG
Abstract: An imaging lens assembly driving module includes a lens carrier, a first molded structure, a second molded structure, a driving mechanism and a mechanical member. The lens carrier defines an optical axis. The first molded structure is disposed correspondingly to the lens carrier and includes a first light blocking structure. The second molded structure is coupled to the first molded structure for forming an inner space, the lens carrier is accommodated in the inner space, and the second molded structure includes a second light blocking structure. The driving mechanism is for driving the lens carrier to move along the optical axis. The mechanical member is for connecting the lens carrier and the first molded structure. The first molded structure is coupled to the second molded structure so that the first light blocking structure and the second light blocking structure form a light passing hole.
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公开(公告)号：US20220221623A1
公开(公告)日：2022-07-14
申请号：US17412433
申请日：2021-08-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chih-Wei CHENG , Yu-Chen LAI , Ming-Ta CHOU , Ming-Shun CHANG
Abstract: An imaging lens assembly has an optical axis, and includes a plurality of optical elements. The optical elements include a light blocking sheet, and the light blocking sheet includes a through hole surface, a first surface, a second surface, a peripheral surface and a plurality of basin structures. The through hole surface surrounds the optical axis. The first surface and the second surface are connected to and surround the through hole surface. The peripheral surface is connected to the first surface and the second surface, and the peripheral surface is farther from the optical axis than the through hole surface from the optical axis. The basin structures are arranged in interval and around the optical axis, each of the basin structures is caved in from the first surface to the second surface, and each of the basin structures protrudes on the second surface.
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公开(公告)号：US20220171205A1
公开(公告)日：2022-06-02
申请号：US17672783
申请日：2022-02-16
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.
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