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公开(公告)号：US20160313569A1
公开(公告)日：2016-10-27
申请号：US15136542
申请日：2016-04-22
Applicant: TDK CORPORATION
Inventor： Shusuke ICHIHASHI
CPC classification number: G02B27/646 , G02B7/04 , G02B7/08 , G02B7/102 , G02B7/36 , G03B3/10 , H04N5/23212
Abstract: The present invention is a lens driving device comprising first driving coils 30a which relatively moves a lens holder 40 against a base part 10 along X axis perpendicular to an optical axis of a lens 100, and second driving coils 30b which relatively moves a lens holder 40 against a base part 10 along Y axis perpendicular to an optical axis. At the base part 10, an opening part 12 is formed where a part of the lens 100 is to be inserted in a movable manner along the driving plane. The oblique diameter Dxy1 and Dxy2 of the opening part 12 along the oblique direction positioned at the middle of X axis and Y axis, is larger than the first inner diameter Dx along X axis direction of the opening part 12, and also larger than the second inner diameter Dy along Y axis direction of the opening part 12. At the base part 10, the cylinder shape projection part 14 is formed along the periphery of the opening part 12.
Abstract translation: 本发明是一种透镜驱动装置，包括：第一驱动线圈30a，其将透镜保持件40相对于垂直于透镜100的光轴的X轴相对地移动到基部10;以及第二驱动线圈30b，其相对移动透镜保持器40 沿着垂直于光轴的Y轴抵靠基部10。 在基部10处，形成开口部12，其中透镜100的一部分沿着驱动平面可移动地插入。 开口部12的沿着位于X轴和Y轴的中心的倾斜方向的斜直径Dxy1和Dxy2大于沿着开口部12的X轴方向的第一内径Dx，并且大于第二 内径Dy沿着开口部12的Y轴方向。在基部10处，圆筒状突起部14沿着开口部12的周缘形成。
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公开(公告)号：US20220120999A1
公开(公告)日：2022-04-21
申请号：US17563361
申请日：2021-12-28
Applicant: TDK CORPORATION
Inventor： Akira SUZUKI , Shusuke ICHIHASHI
Abstract: A lens drive device includes a movable unit, a fixed unit, and a support portion. The movable unit includes a magnet and a lens holder for holding a lens. The fixed unit includes a coil board and a base board. The coil board includes a coil facing the magnet and a coil wiring connected thereto. The base board is disposed opposite to the magnet across the coil board and includes a base wiring and an opening through which the optical axis of the lens passes. The support portion relatively movably connects the movable unit to the fixed unit and supports the movable unit to the fixed unit. A first conductive portion conductively connecting the coil wiring and the base wiring in the fixed unit is disposed away from an opening periphery of the opening to an outside in a radial direction.
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公开(公告)号：US20180129064A1
公开(公告)日：2018-05-10
申请号：US15799166
申请日：2017-10-31
Applicant: TDK CORPORATION
Inventor： Shusuke ICHIHASHI
CPC classification number: G02B27/646 , G02B13/001 , G03B5/04 , G03B2205/0015 , G03B2205/0069
Abstract: A lens drive device includes a movable portion, a fixed portion, and four suspension wires. The movable portion has a lens holder holding a lens and a magnet arranged at a position that does not overlap with the lens when viewed from a light axis direction. The fixed portion has a coil and a position sensor arranged to oppose against the magnet in the light axis direction and a circuit board having multiple wirings. The wires are arranged around the lens at approximately equal intervals in the light axis direction. The sensor and the coil are arranged to overlap with four sides of a four-sided polygon formed by connecting four wire connection positions where the wires are connected with the fixed portion. The sensor is arranged between the wire connection position closest to the sensor and the coil closest thereto.
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公开(公告)号：US20180246343A1
公开(公告)日：2018-08-30
申请号：US15965589
申请日：2018-04-27
Applicant: TDK CORPORATION
Inventor： Shusuke ICHIHASHI
Abstract: The present invention is a lens driving device comprising first driving coils 30a which relatively moves a lens holder 40 against a base part 10 along X axis perpendicular to an optical axis of a lens 100, and second driving coils 30b which relatively moves a lens holder 40 against a base part 10 along Y axis perpendicular to an optical axis. At the base part 10, an opening part 12 is formed where a part of the lens 100 is to be inserted in a movable manner along the driving plane. The oblique diameter Dxy1 and Dxy2 of the opening part 12 along the oblique direction positioned at the middle of X axis and Y axis, is larger than the first inner diameter Dx along X axis direction of the opening part 12, and also larger than the second inner diameter Dy along Y axis direction of the opening part 12. At the base part 10, the cylinder shape projection part 14 is formed along the periphery of the opening part 12.
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公开(公告)号：US20180224624A1
公开(公告)日：2018-08-09
申请号：US15891689
申请日：2018-02-08
Applicant: TDK CORPORATION
Inventor： Shusuke ICHIHASHI
Abstract: A lens drive device includes a movable portion, a fixed portion, and a nonmagnetic case. The movable portion includes a double-pole magnet having two pairs of magnetic poles, a first coil opposing to the double-pole magnet in a perpendicular direction to a light axis, and a lens holder being movable to the double-pole magnet in a direction of the light axis. The fixed portion includes a second coil arranged so as to oppose to the double-pole magnet in the direction of the light axis. The nonmagnetic case is attached to the fixed portion so as to cover the movable portion. The double-pole magnet includes a first section and a second section. L1/L2 is 1.1 to 2.0, where L1 and L2 are respectively a length of the first and second sections in the direction of the light axis.
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Patent Agency Ranking
公开(公告)号：US20190317298A1
公开(公告)日：2019-10-17
申请号：US16454325
申请日：2019-06-27
Applicant: TDK CORPORATION
Inventor： Shusuke ICHIHASHI
Abstract: A lens drive device includes a movable portion, a fixed portion, and a nonmagnetic case. The movable portion includes a double-pole magnet having two pairs of magnetic poles, a first coil opposing to the double-pole magnet in a perpendicular direction to a light axis, and a lens holder being movable to the double-pole magnet in a direction of the light axis. The fixed portion includes a second coil arranged so as to oppose to the double-pole magnet in the direction of the light axis. The nonmagnetic case is attached to the fixed portion so as to cover the movable portion. The double-pole magnet includes a first section and a second section. L1/L2 is 0.9 to 1.1, where L1 and L2 are respectively a length of the first and second sections in the direction of the light axis.
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公开(公告)号：US20180224631A1
公开(公告)日：2018-08-09
申请号：US15891503
申请日：2018-02-08
Applicant: TDK CORPORATION
Inventor： Shusuke ICHIHASHI
CPC classification number: G02B13/001 , G02B7/02 , G02B7/08 , G03B3/10 , H01H47/22 , H02K41/03 , H04N5/2253 , H04N5/2254
Abstract: A lens drive device includes a movable portion, a fixed portion, and a nonmagnetic case. The movable portion includes a double-pole magnet having two pairs of magnetic poles, a first coil opposing to the double-pole magnet in a perpendicular direction to a light axis, and a lens holder being movable to the double-pole magnet in a direction of the light axis. The fixed portion includes a second coil arranged so as to oppose to the double-pole magnet in the direction of the light axis. The nonmagnetic case is attached to the fixed portion so as to cover the movable portion. The double-pole magnet includes a first section and a second section. L1/L2 is 0.9 to 1.1, where L1 and L2 are respectively a length of the first and second sections in the direction of the light axis.
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公开(公告)号：US20170329099A1
公开(公告)日：2017-11-16
申请号：US15584403
申请日：2017-05-02
Applicant: TDK CORPORATION
Inventor： Shusuke ICHIHASHI
IPC: G02B7/10
Abstract: A lens drive device includes a lens holder capable of holding at least one lens and a frame arranged around the holder and holding the holder relatively movable along a light axis of the lens. At least three stopper convex portions protruding toward the frame are formed on an outer circumference of the holder. Stopper concave portions housing each of the stopper convex portions are formed on the frame correspondingly to the stopper convex portions. A convex intersection corner between the first convex end surface and the convex side surface has a chamfering portion or an R curved surface portion to avoid touching a concave intersection corner between the concave bottom surface and the concave side surface.
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公开(公告)号：US20160313568A1
公开(公告)日：2016-10-27
申请号：US15136510
申请日：2016-04-22
Applicant: TDK Corporation
Inventor： Shusuke ICHIHASHI
CPC classification number: G02B27/646 , G02B7/08 , G03B17/02 , G03B17/12
Abstract: The present invention relates to the lens driving device comprising the spring 90. The spring 90 comprises the holder installation parts 93a to 93d installed to the lens holder 40, the flame installation parts 94a to 94d installed to the flame 60, and the wire installation parts 92a to 92d installed to the suspension wire 16. The space 63 is formed between a first step plane 64a of the flame 60, and a part of the spring 90 positioned between the flame installation part 94a and the wire installation parts 92a to 92d; and the vibration absorbing member 70c is placed at the space 63. At the damper space between the damper table 24 and the rear plane of the flame 60, the vibration absorbing member 70a is filled. At the inner circumference plane of the flame 60, the depression part 74 is formed which is opened towards the space, and the vibration absorbing member 70b which is filled in the space is also continuously filled to the depression part 74.
Abstract translation: 本发明涉及包括弹簧90的透镜驱动装置。弹簧90包括安装到透镜架40的保持器安装部93a至93d，安装在火焰60上的火焰安装部94a至94d以及安装在火焰60上的电线安装部 92a至92d安装到悬挂线16上。空间63形成在火焰60的第一台阶平面64a与位于火焰安装部分94a和电线安装部分92a至92d之间的弹簧90的一部分之间。 并且振动吸收构件70c被放置在空间63.在阻尼器台24与火焰60的后平面之间的阻尼空间处，填充有吸振构件70a。 在火焰60的内周平面上形成有向空间开口的凹陷部74，并且填充在该空间内的振动吸收构件70b也被连续地填充到凹部74。
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公开(公告)号：US20210203852A1
公开(公告)日：2021-07-01
申请号：US17126551
申请日：2020-12-18
Applicant: TDK Corporation
Inventor： Yongfu CAI , Hiraku HIRABAYASHI , Shusuke ICHIHASHI
Abstract: The position detecting device of the present invention is a device for detecting the position of a movable detection target within a predetermined movable range. The position detecting device comprises: a first magnet (13A) and a second magnet (13B) which are arranged so as to move integrally with the movement of the detection target; a first magnetic detecting circuit (20A) that detects the magnetic field of the first magnet (13A) and a second magnetic detecting circuit (20B) that detects the magnetic field of the second magnet (13B), which are arranged at positions outside the movable range; and a differential amplifier (8) that amplifies the difference between the detection signals of the magnetic field output from the first magnetic detecting circuit (20A) and the second magnetic detecting circuit (20B), and that outputs the amplified difference of the signal as a position detecting signal of the detection target.
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