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公开(公告)号：US20240418975A1
公开(公告)日：2024-12-19
申请号：US18391570
申请日：2023-12-20
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Kaoru Yamazaki , Takashi Iwasaki
Abstract: Disclosed is a microscope objective lens including from an emitting side to an objective side: the first lens to the twelfth lens. The focal length of the microscope objective lens is f, the numerical aperture is NA, and the working distance is WD. A focal length of a lens group consisting of the first lens to the fourth lens is f1-4, and a combined focal length between the seventh lens and the eighth lens is f78. The on-axis distances of the seventh and the eighth lens are d13 and d15, and an on-axis distance from the seventh lens to the eighth lens is d14. The central radiuses of curvature of the emitting surface and the objective surface of the eleventh lens are R21 and R22, respectively. The following relationship expressions are satisfied: 0.09≤f1−4/f≤0.15; −1.35≤f78/(d13+d14+d15)≤−0.95; −7.00≤R21/R22≤−2.00; 0.20≤NA*f/WD≤0.26. This microscope objective lens has excellent optical characteristics, and low aberration.
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公开(公告)号：US12158695B2
公开(公告)日：2024-12-03
申请号：US17558616
申请日：2021-12-22
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Feng Yan , Tianheng Ni , Suohe Wei
Abstract: A lens driving module includes first and second bases, a bottom base, a reset assembly, a PCB, first and second driving assemblies respectively driving first base to rotate about a first axis and second base to rotate about a second axis, and a lens mounted on the first base. The reset assembly includes reset members provided at two opposite sides of the bottom base along the first axis or the second axis. Each reset member includes first to third connection portions, a first elastic arm connected between first and second connection portions and configured to reset the first base, and a second elastic arm connected between second and third connection portions and configured to reset the second base. The first to third connection portions are respectively connected to first and second bases and bottom base, respectively. The lens driving module has a simplified structure, compact size, and improved stability.
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公开(公告)号：US12105345B2
公开(公告)日：2024-10-01
申请号：US17566736
申请日：2021-12-31
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Tongming Xu
CPC classification number: G02B7/023 , G02B27/646
Abstract: The invention provides a lens module, including: a lens assembly having an optical axis; a first bracket; a first elastic plate suspending the lens assembly in the first bracket; a second bracket; a suspending wire; and a driving assembly for driving the lens assembly to move along the optical axis relative to the first bracket, and for driving the lens assembly to move in a direction perpendicular to the optical axis. The second elastic plate is fixed on the second bracket, and includes a fixed part fixedly connected to the second bracket and a deformation part. The deformation part performs elastic deformation along the optical axis relative to the fixed part for reducing the bending force of the suspending wire. Compared with prior art, a lens module of the present invention has an improved image optical stabilization function.
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公开(公告)号：US20230341657A1
公开(公告)日：2023-10-26
申请号：US17730108
申请日：2022-04-26
Applicant: Changzhou AAC Raytech Optronics Co., Ltd. , DynaOptics Ltd
Inventor： Vadim Vlakhko , Fedor Churliaev , Johan Sand , Ossi Pirinen , Mika Riihimies , Tuomas Punta
CPC classification number: G02B9/64 , G02B3/0043
Abstract: Provided is a camera optical lens including seven lenses sequentially from object side to image side: first lens having negative refractive power, second lens having positive refractive power, third lens having positive refractive power, fourth lens having positive refractive power, fifth lens having negative refractive power, sixth lens having positive refractive power, seventh lens having negative refractive power and with object and image side surfaces being free-form surfaces. Focal length of camera optical lens is f; focal length of first lens is f1, focal length of third lens is f3, focal length of fourth lens is f4; refractive index of third lens is nd3; refractive index of sixth lens is nd6; refractive index of seventh lens is nd7, and following relational expressions are satisfied: −1.52≤f1/f≤−1.38; 1.56≤nd3≤1.59; 1.53≤nd6≤1.81; 1.61≤nd7≤1.67; 2.04≤f3/f4≤2.27. The camera optical lens has excellent optical characteristics, and has large aperture, wide field of view, ultra-thinning and low optical distortion.
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公开(公告)号：US11490014B2
公开(公告)日：2022-11-01
申请号：US17522826
申请日：2021-11-09
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Tianheng Ni , Rongfu Xie , Feng Yan , Gang Li , Suohe Wei
Abstract: A lens driving device includes first and second support frames, lens barrel, anti-shake magnets, anti-shake coils, flexible PCB, metal sheets, and support assembly including support member and first and second guiding posts. Support member includes support plate and first and second support walls. First soft protruding rubbers are respectively provided at positions of top surface of first support frame corresponding first support walls, and second soft protruding rubbers are respectively provided at positions of inner wall of second support frame corresponding to two sides of each second support wall. Compared with the prior art, lens driving device of the present disclosure makes impact limit position of first support walls closer to deflection axis position in first direction, and makes impact limit positions of second support walls closer to deflection axis position in second direction to reduce speed of limit impact, thereby reducing risk of generating particles due to impact.
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Patent Agency Ranking
公开(公告)号：US20220182548A1
公开(公告)日：2022-06-09
申请号：US17541295
申请日：2021-12-03
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Tianheng Ni , Feng Yan , Suohe Wei
Abstract: A photographing lens is provided, including a mounting framework, a lens module and an image stabilization module, where the image stabilization module includes a movable holder, a frame, a first rotation assembly, a second rotation assembly, a first elastic member, a second elastic member, a third elastic member and a fourth elastic member; the first elastic member includes a first fixing piece, a second fixing piece, and a first elastic piece connected between the first fixing piece and the second fixing piece; the second elastic member includes a third fixing piece, a fourth fixing piece, and a second elastic piece connected between the third fixing piece and the fourth fixing piece. The present invention solves the technical problems of the complex structure and increased thickness of the photographing lens for realizing the rotational reset of the lens module in the related art.
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公开(公告)号：US20220150410A1
公开(公告)日：2022-05-12
申请号：US17522826
申请日：2021-11-09
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Tianheng Ni , Rongfu Xie , Feng Yan , Gang Li , Suohe Wei
Abstract: A lens driving device includes first and second support frames, lens barrel, anti-shake magnets, anti-shake coils, flexible PCB, metal sheets, and support assembly including support member and first and second guiding posts. Support member includes support plate and first and second support walls. First soft protruding rubbers are respectively provided at positions of top surface of first support frame corresponding first support walls, and second soft protruding rubbers are respectively provided at positions of inner wall of second support frame corresponding to two sides of each second support wall. Compared with the prior art, lens driving device of the present disclosure makes impact limit position of first support walls closer to deflection axis position in first direction, and makes impact limit positions of second support walls closer to deflection axis position in second direction to reduce speed of limit impact, thereby reducing risk of generating particles due to impact.
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公开(公告)号：US20250044484A1
公开(公告)日：2025-02-06
申请号：US18533240
申请日：2023-12-08
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Siyuan Jiang
Abstract: The present disclosure relates to the technical field of optical lens and discloses an optical system including, from an anterior side to a posterior side: an image surface, having a circular polarizer attached to a posterior side of the image surface to emit light; a first lens, provided with some reflective elements on an anterior-side surface and a lamination film on a posterior-side surface of the first lens, the lamination film comprising a reflective polarizing film and a quarter waveplate, and the reflective polarizing film provided at a posterior side of the quarter waveplate; and an aperture, located at the posterior side of the optical system; and the optical system further satisfying following conditions: VD≥6 mm; SDmax≤21.2 mm; and 0.71≤d4/TTL≤0.85. The optical system has good optical functions while satisfying a desire of design in a small size and a light weight.
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公开(公告)号：US20250035879A1
公开(公告)日：2025-01-30
申请号：US18536279
申请日：2023-12-12
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Fan Li
IPC: G02B7/02
Abstract: A lens barrel is provided, including: a lens barrel body which is hollow and open at both ends, and a support wall bending and extending inwardly from an object-side end of the lens barrel body and enclosing a light-through hole. An image-side surface of the support wall is provided with extinction regions spaced apart from each other along a circumferential direction of the support wall. Each extinction region includes linear extinction strips protruding from the image-side surface, and the linear extinction strips are all disposed in each extinction region. Each linear extinction strip extends from one end of the image-side surface of the support wall adjacent to the lens barrel body to one end thereof adjacent to the optical axis, and adjacent two linear extinction strips are spaced apart from each other to form a vent slot. The lens barrel and lens module of the present disclosure are more reliable.
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公开(公告)号：US20240337821A1
公开(公告)日：2024-10-10
申请号：US18533202
申请日：2023-12-08
Applicant: Changzhou AAC Raytech Optronics Co., Ltd.
Inventor： Siyuan Jiang
Abstract: The present disclosure discloses an optical module and a VR device. The optical module includes, from an image side to an object side, a first lens, a second lens and a third lens; a lamination film is attached on an image-side surface of the first lens, the lamination film comprising, from the image side to the object side, a reflective polarizing film and a quarter waveplate film; and the optical module further satisfying following conditions: 1.00≤f23/f≤1.50; MAX SD≤27.00 mm; and Eyebox≥12.00*12.00 mm. The present disclosure not only solves the existing problem of small Eyebox, small FOV, the inability to achieve adjustable diopter, or the ability to achieve adjustable diopter but an adjustment structure being complex and a range of diopter adjustment being small, but also satisfies a use requirement for miniaturization and light weight of an optical module in a VR device.
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