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公开(公告)号:US09759928B2
公开(公告)日:2017-09-12
申请号:US14853620
申请日:2015-09-14
发明人: Soo Cheol Lim , Byung Woo Kang , Sang Min On
CPC分类号: G02B27/646 , G01D5/142 , G02B7/08 , G03B3/10 , G03B5/00 , G03B2205/0015 , G03B2205/0053 , H01F7/0205 , H02K41/0356
摘要: An optical image stabilizer is provided, in which magnets and coils are arranged such that they oppose each other. The Hall sensors are arranged such that one face of each is opposed to one face of the magnets, respectively. The Hall sensors can detect the location of a group of lenses by generating a corresponding signal in response to a variation in magnetic force following a variation in the gap between magnets depending on the direction in which a group of lenses is driven, and simultaneously, in response to a variation in magnetic force that occurs when the group of lenses is displaced in the direction that intersects the direction of the gap.
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公开(公告)号:US20170244898A1
公开(公告)日:2017-08-24
申请号:US15589258
申请日:2017-05-08
发明人: DAI SHINTANI
CPC分类号: H04N5/23264 , G02B27/646 , G03B2205/0038 , H02K41/02 , H02K41/0354 , H02K41/0356 , H02K41/0358 , H02K2201/18 , H04N5/2253
摘要: The image blur correction device is an image blur correction device that corrects a blur of an image of a subject to be captured, and includes a movable frame, a fixed frame, a plurality of connection members, a plurality of actuators, a pair of magnets, and a magnetic body. The movable frame is displaceable along a plane orthogonal to an optical axis. The fixed frame faces the movable frame. The plurality of connection members connects the fixed frame and the movable frame to each other, and supports the movable frame so as to be displaceable. The plurality of actuators changes the position of the movable frame according to displacement of the movable frame. The pair of magnets is mounted on one of the fixed frame and the movable frame, and includes a first magnetic pole and a second magnetic pole. The magnetic body is mounted on the other of the fixed frame and the movable frame, and disposed to face the pair of magnets. The magnetic body has a flat surface facing the pair of magnets, the flat surface having four sides. A first side out of the four sides is located across the first magnetic pole and the second magnetic pole of the pair of magnets, and a second side intersecting the first side is located along one of the first magnetic pole and the second magnetic pole of the pair of magnets. The first side is linear, and the second side has a recessed shape or a protruded shape intersecting the first side.
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公开(公告)号:US20170235155A1
公开(公告)日:2017-08-17
申请号:US15434554
申请日:2017-02-16
发明人: Shinji MINAMISAWA , Takeshi SUE
CPC分类号: G02B27/646 , G02B7/023 , H02K41/0356
摘要: An optical unit with a shake correction function may include a movable body which may include an optical module and a holder for holding the optical module, and a gimbal mechanism which swingably supports the movable body with respect to a fixed body. The gimbal mechanism may include a movable frame which is a gimbal spring. The movable frame may include a supporting point part and a connecting part including a meandering part. The meandering part has a cross-sectional shape in which on the assumption that a direction perpendicular to first and second axial lines is a first direction and a direction perpendicular to the first direction and a meandering path of the meandering part is a second direction, a thickness in the second direction is larger than a thickness in the first direction of each plate-shaped spring which structures the movable frame.
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公开(公告)号:US09726851B2
公开(公告)日:2017-08-08
申请号:US15302479
申请日:2014-04-15
发明人: Xiaoping Hu
IPC分类号: G02B7/04 , H02K33/18 , H02K41/035
CPC分类号: G02B7/04 , H02K5/1677 , H02K33/16 , H02K33/18 , H02K41/0356
摘要: A voice coil motor and a corresponding focusing lens. A rotor assembly (22) is connected to a stator assembly (21) by means of an elastic connecting piece (23). A stator sleeve (211) is sleeved on a rotor sleeve (221). One of the stator sleeve (211) and the rotor sleeve (221) is a permanent magnetic material sleeve, and the other is a non-magnetic material sleeve. An assembly to which the non-magnetic material sleeve belongs also comprises a pre-magnetic element (222) and a drive coil (223). The premagnetic element (222) is made of a permanent magnetic or magnetized material, and is fixed relative to the non-magnetic material sleeve. The elastic connecting piece (23) is in a force balance state in a case without power because of pre-existing magnetic force between the pre-magnetic element (222) and the permanent magnetic material sleeve. Smaller electromagnetic force is required for driving the elastic connecting piece (23) to move, thereby reducing a drive current and power consumption.
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公开(公告)号:US20170219837A1
公开(公告)日:2017-08-03
申请号:US15500641
申请日:2016-07-01
IPC分类号: G02B27/22 , G02F1/1333
CPC分类号: G02B27/2214 , G02F1/133308 , G02F1/1347 , G02F2001/133322 , H02K41/0356
摘要: A display device and a method for using the display device are provided. The display device includes a display panel, a grating panel over the display panel, and a distance adjusting mechanism for adjusting a distance between the display panel and the grating panel to provide an adjustable optimum viewing distance of the display device. The distance adjusting mechanism includes a first electromagnetic unit configured with the grating panel and a second electromagnetic unit configured under the display panel. Electric current flowing through each of the first electromagnetic unit and the second electromagnetic unit is controlled to allow the grating panel to move towards or away from the display panel.
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公开(公告)号:US09722481B2
公开(公告)日:2017-08-01
申请号:US15214018
申请日:2016-07-19
申请人: LG INNOTEK CO., LTD.
发明人: Sanghee Lee
IPC分类号: H02K41/035 , H02K33/04 , G03B3/10
CPC分类号: H02K41/0356 , G03B3/10 , H02K33/04
摘要: Disclosed is a voice coil motor, the motor including a mover having a bobbin equipped with a lens and a coil block secured to an outer circumference of the bobbin; a stator having a magnet that is disposed in such a way as to face the coil block; elastic members coupled to a lower end of the bobbin and connected to both ends of the coil block; a base supporting the elastic members and the stator; and a cover can covering the mover, the stator and the base, with an opening being formed in the cover can to expose the lens therethrough, wherein each of the elastic members includes a terminal portion that extends between the cover can and a side surface of the base, the terminal portion including a short-circuit prevention portion so as to inhibit a short-circuit between the terminal portion and the cover can.
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公开(公告)号:US20170168314A1
公开(公告)日:2017-06-15
申请号:US15361742
申请日:2016-11-28
申请人: TDK TAIWAN CORP.
发明人: Yi-Liang CHAN , Shang-Yu HSU
CPC分类号: G02B27/646 , G02B7/023 , H02K41/0356
摘要: An optical image stabilization mechanism is provided, including a holder for holding a lens, a frame, a base, a first coil, a second coil, a displacement sensor, a first magnetic element, a second magnetic element, and a third magnetic element.The frame is movably connected to the holder and the base. The first coil is disposed on a side of the holder. The second coil is disposed on the base. The first and second magnetic elements are disposed on the frame and correspond to the first coil. The magnetic pole direction of the first magnetic element is opposite to that of the second magnetic element. The third magnetic element is disposed on the frame and corresponds to the second coil. The displacement sensor is disposed on the base to detect relative displacement between the lens and the base.
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公开(公告)号:US20170155311A1
公开(公告)日:2017-06-01
申请号:US14997604
申请日:2016-01-18
发明人: Te-Sheng Tseng , Wen-Hung Hsu
IPC分类号: H02K41/035
CPC分类号: H02K41/0356
摘要: A voice coil motor includes a holder, a metal yoke, a carrier, a plurality of magnets, a coil and at least two spring plates. The magnets are disposed in the metal yoke. The coil is wound around the carrier and adjacent to the magnets. The spring plates are coupled to the carrier. The holder includes a first opening, a cylindrical sidewall and at least two radial protrusions. The cylindrical sidewall is disposed around the first opening. The radial protrusions protrude from the cylindrical sidewall. The metal yoke is coupled to the holder and includes a second opening and a plurality of inner walls. The carrier is movably disposed in the metal yoke and includes at least two radial enlarged portions and a plurality of notches. Each of the radial enlarged portions is disposed correspondingly to each of the radial protrusions.
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公开(公告)号:US20170115464A1
公开(公告)日:2017-04-27
申请号:US15399447
申请日:2017-01-05
申请人: LG INNOTEK CO., LTD.
发明人: Seongmin Lee , Sangok Park , Sangjun Min , Kyoungho Yoo , Taejin Jung , Taemin Ha , Seungki Kim
IPC分类号: G02B7/04 , H02K5/04 , H02K41/035 , H04N5/225 , H04N5/44
CPC分类号: G02B7/04 , G02B7/023 , H02K5/04 , H02K41/035 , H02K41/0356 , H04N5/2252 , H04N5/2254 , H04N5/44
摘要: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.
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公开(公告)号:US09621017B2
公开(公告)日:2017-04-11
申请号:US14920395
申请日:2015-10-22
申请人: LG INNOTEK CO., LTD.
发明人: Seongmin Lee , Sangok Park , Sangjun Min , Taejin Jung
IPC分类号: G02B7/02 , H02K41/03 , H02K41/035 , H04N5/225 , H02K5/04 , G03B3/10 , G03B13/34 , G02B7/04 , G02B7/08 , G02B13/00
CPC分类号: H02K41/0356 , G02B7/02 , G02B7/026 , G02B7/04 , G02B7/08 , G02B13/001 , G03B3/10 , G03B13/34 , H02K5/04 , H02K41/03 , H02K41/035 , H04N5/2252 , H04N5/2254 , H04N5/2257
摘要: A VCM (voice coil motor) is disclosed, the VCM comprising: a bobbin formed with a support unit protruded from a periphery of a body at a bottom portion of the body, and a recess unit partially removed at the support unit; and a coil block supported by the support unit and including a plurality of coil layers wound at a periphery of the bobbin, wherein first and second distal ends of the coil block pass through the recess unit.
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