公开(公告)号：US10750062B2

公开(公告)日：2020-08-18

申请号：US16011669

申请日：2018-06-19

申请人： Tomohiko Osaka ,  Takashi Ishizawa

发明人： Tomohiko Osaka ,  Takashi Ishizawa

IPC分类号： H04N5/225 ,  G02B7/09 ,  H01L43/06 ,  H04N5/232 ,  G03B3/10 ,  G03B5/00

摘要： Provided are a lens driving device, a camera module, and a camera-mounted device for which the miniaturization and weight reduction can be achieved and the reliability can also be improved. The lens driving device includes auto-focusing and shake-correcting driving parts utilizing a voice coil motor. An autofocus fixing part includes a Hall element configured to detect a position of an autofocus movable part in the optical-axis direction, and the autofocus movable part includes a position-detecting magnet arranged near the Hall element. Both of an auto-focusing magnet part and the position-detecting magnet are radially magnetized.

公开(公告)号：US10451834B2

公开(公告)日：2019-10-22

申请号：US15318388

申请日：2015-05-27

申请人： Tomohiko Osaka ,  Takashi Ishizawa

发明人： Tomohiko Osaka ,  Takashi Ishizawa

IPC分类号： G02B7/09 ,  H04N5/225 ,  G02B7/08 ,  H02K41/035 ,  G02B27/64

摘要： In a lens holder driving device, each of an upper plate spring and a lower plate spring, which are respectively provided on an upper side and a lower side of a lens holder, has an inner peripheral side end fixed to the lens holder, an outer peripheral side end fixed to a fixing part, and a plurality of arms. The plurality of arms of the upper plate spring and the plurality of arms of the lower plate spring have substantially identical shapes in a plan view. Each of the plurality of arms includes at least one U-turn shaped portion that is folded over. Either the upper plate spring or the lower plate spring has at least one stretchable and flexible resin that is provided so as to straddle over the mutually opposing parts of the U-turn shaped portion of the plurality of arms.

公开(公告)号：US10412279B2

公开(公告)日：2019-09-10

申请号：US16011670

申请日：2018-06-19

申请人： Tomohiko Osaka ,  Takashi Ishizawa

发明人： Tomohiko Osaka ,  Takashi Ishizawa

IPC分类号： H04N5/225 ,  H04N5/232 ,  H04N5/369

摘要： Provided are a lens driving device, a camera module, and a camera-mounted device for which the miniaturization and weight reduction can be achieved and the reliability can also be improved. The lens driving device includes AF and shake-correcting driving parts utilizing a voice coil motor. An AF fixing part includes an AF control part controlling the energization current through an AF coil part. The AF driving part includes upper and lower elastic supporting parts, auto-focusing power-source lines connected to power-supplying suspension wires functioning as a shake-correcting supporting part, signal lines connected to signal suspension wires functioning as a shake-correcting supporting part, and coil power-supply lines electrically connecting the AF control part to the AF coil part. The upper elastic supporting part functions at least as the AF power-supply lines or the signal lines, and the lower elastic supporting part functions as the coil power-supply lines.

公开(公告)号：US10107987B2

公开(公告)日：2018-10-23

申请号：US15319064

申请日：2015-06-18

申请人： Tomohiko Osaka ,  Takashi Ishizawa

发明人： Tomohiko Osaka ,  Takashi Ishizawa

IPC分类号： G02B7/02 ,  H04M1/02

摘要： A lens holder drive device has: a lens holder; a fixing part that includes a base member disposed below the lens holder; a drive mechanism; an upper-side plate spring; a lower-side plate spring; and a position detection unit that detects the position of the lens holder in the optical axis direction. The drive mechanism has: a drive coil fixed to the perimeter of the lens holder; a yoke having a substantially square columnar shape; and a drive magnet disposed to face the drive coil in a first direction which is orthogonal to the optical axis direction. The position detection unit includes: a sensor magnet attached to an outer circumferential surface of the lens holder in a second direction which is orthogonal to the optical axis direction and the first direction; and a magnetic sensing element that faces the sensor magnet and is provided to the base member.

公开(公告)号：US08503121B2

公开(公告)日：2013-08-06

申请号：US13161728

申请日：2011-06-16

申请人： Tomohiko Osaka ,  Takashi Ishizawa

发明人： Tomohiko Osaka ,  Takashi Ishizawa

IPC分类号： G02B7/02

CPC分类号： H02K41/0356 ,  G02B7/023 ,  G02B7/026 ,  H04N5/2253 ,  H04N5/2254

摘要： A lens driving device includes a ring-shaped driving coil fixed to a lens holder so as to position around a tubular portion thereof and a rectangular hollow cylindrical yoke including a plurality of flat-shaped permanent magnets opposite to the driving coil. Each flat-shaped permanent magnet has both ends in a horizontal direction which extend in the proximity of opposed two sides of the yoke. The driving coil is disposed so as to extend up to the vicinity of the both ends in the horizontal direction of each flat-shaped permanent magnet.

摘要翻译： 透镜驱动装置包括固定到透镜保持器以便围绕其管状部分定位的环形驱动线圈和包括与驱动线圈相对的多个扁平永久磁铁的矩形中空圆柱形轭铁。 每个扁平永磁体都具有水平方向的两端，其在轭的相对的两侧附近延伸。 驱动线圈配置成在各扁平状永久磁铁的水平方向上延伸至两端附近。

公开(公告)号：US20080266682A1

公开(公告)日：2008-10-30

申请号：US11846442

申请日：2007-08-28

申请人： Takashi Ishizawa ,  Tomohiko Osaka

发明人： Takashi Ishizawa ,  Tomohiko Osaka

IPC分类号： G02B7/04

CPC分类号： G02B7/08 ,  G02B7/102 ,  G03B13/34

摘要： A camera module includes upper and lower leaf springs having a stable load characteristic and a holder displaceably held by the leaf springs so that the holder can be stably displaced within a magnetic circuit. The upper spring 5 has an outer annular portion 5a, an inner annular portion 5b provided inside the outer annular portion 5a so as to be displaceable with respect to the outer annular portion 5a and attached to the holder 9, and a plurality of bridge portions 5c coupled between the outer annular portion 5a and the inner annular portion 5b. The camera module further includes a bridge portion supporting member 4 for supporting a part of at least one of the plurality of bridge portions so that a load characteristic of the leaf spring can be changed. By rotating the bridge portion supporting member 4 in a clockwise direction, an overlapping part between the extending part 4c and the bridge portion 5c is increased according to the amount of the rotation so that a spring constant of the upper leaf spring 5 is apparently increased.

摘要翻译： 相机模块包括具有稳定负载特性的上板簧和下板簧，以及由板簧可移动地保持的保持架，使得保持器能够在磁路内稳定地移位。 上弹簧5具有外环形部分5a，内环形部分5b，其设置在外环形部分5a内部，以相对于外环形部分5a可移动并附接到保持器9，并且多个 连接在外环形部分5a和内环形部分5b之间的桥接部分5c。 相机模块还包括桥接部分支撑部件4，用于支撑多个桥接部分中的至少一个桥接部分的一部分，使得能够改变板簧的负载特性。 通过沿顺时针方向旋转桥接部分支撑构件4，延伸部分4c和桥接部分5c之间的重叠部分根据旋转量而增加，使得上部板簧5的弹簧常数显然为 增加。

公开(公告)号：US20080069557A1

公开(公告)日：2008-03-20

申请号：US11853629

申请日：2007-09-11

申请人： Takashi Ishizawa ,  Tomohiko Osaka

发明人： Takashi Ishizawa ,  Tomohiko Osaka

IPC分类号： G03B17/00 ,  H04N5/225

CPC分类号： G02B7/08 ,  G02B13/001 ,  G03B13/32 ,  H04N5/2254 ,  H04N5/2257

摘要： A camera module includes a holder provided with a lens unit and displaceable along an optical axis direction of the lens unit; a coil formed from a wound wire having both end portions serving as lead wires, and provided on the holder; a yoke and magnets for providing a magnetic field to the coil; a flexible printed circuit board for supplying an electrical current to the lead wires; and upper and lower leaf springs for supporting the holder so that the holder is displaceable along the optical axis direction. Each of the upper and lower springs includes an outer annular portion, an inner annular portion provided inside the outer annular portion and attached to one of the cylindrical end portions of the holder, and a plurality of bridge portions coupled between the outer annular portion and the inner annular portion. The flexible printed circuit board is arranged below the lower leaf spring, and a part of the insulating sheet portion thereof is formed into a tongue part which extends in a tongue-shaped manner so that the tongue part is arranged in a space between a predetermined bridge portion of the lower leaf spring and the lead wires. The provision of such a tongue part makes it possible to prevent the bridge portion from making contact with the lead wires even in the event that the bridge portion is hardly deformed.

摘要翻译： 相机模块包括具有透镜单元的保持器，并且可沿着透镜单元的光轴方向移位; 由具有两个端部用作引线的缠绕线形成的线圈，并且设置在保持器上; 轭和用于向线圈提供磁场的磁体; 用于向引线提供电流的柔性印刷电路板; 以及用于支撑保持器的上和下板簧，使得保持器沿着光轴方向可移位。 上弹簧和下弹簧中的每一个包括外环形部分，设置在外环形部分内部并附接到保持器的一个圆柱端部的内环形部分，以及耦合在外环形部分和外环形部分之间的多个桥接部分 内环形部分。 柔性印刷电路板布置在下板簧的下方，其绝缘片部分的一部分形成为以舌形延伸的舌部，使得舌部布置在预定桥之间的空间中 下部板簧和导线的一部分。 通过设置这样的舌部，即使在桥接部难以变形的情况下也能够防止桥接部与引线接触。

公开(公告)号：US10338341B2

公开(公告)日：2019-07-02

申请号：US15501906

申请日：2015-07-17

申请人： Tomohiko Osaka ,  Takashi Ishizawa

发明人： Tomohiko Osaka ,  Takashi Ishizawa

IPC分类号： G02B7/02 ,  G02B7/09 ,  H02K41/035 ,  G02B7/08

摘要： A lens holder driving device is provided with a lens holder, a securing part including a base member, a drive mechanism, and a position detection unit. The drive mechanism includes a yoke that is provided to stand on the base member. The position detection unit includes a sensor magnet mounted to the outer peripheral surface of the lens holder, and a magnetic detection element provided in the securing part. The yoke is provided with a tube-shaped external cylinder part, and the external cylinder part includes a plurality of plate sections each having a cutout section. The lens holder driving device includes a foreign matter entry prevention member that prevents foreign matter from getting inside from the cutout sections of the plate sections.

公开(公告)号：US20080297899A1

公开(公告)日：2008-12-04

申请号：US11928367

申请日：2007-10-30

申请人： Tomohiko Osaka ,  Takashi Ishizawa

发明人： Tomohiko Osaka ,  Takashi Ishizawa

IPC分类号： G02B27/00

CPC分类号： G02B27/0006 ,  G02B13/001 ,  H02K41/0356

摘要： A camera module that can obtain a clear image even in the case where dust is generated inside the camera module due to a shock applied thereto is provided. The camera module includes a base and a cover attached to the base so as to define a space therebetween in which the holder can be displaced. The base has an upper surface which faces the cover, and the upper surface of the base includes a concaved dust collecting portion and a dust falling preventing wall formed on the upper surface so as to surround an entire circumference of an opening of the base, and wherein a surface of the concaved dust collecting portion includes a dust sticking layer to which fallen dust is adapted to stick, whereby when dust is generated in the space between the cover and the base and such dust is fallen onto the upper surface of the base, it is possible to prevent such dust from entering into the opening by the dust falling preventing wall and such dust is stuck to the dust sticking layer of the dust collecting portion provided on the upper surface of the base.

摘要翻译： 提供即使在由于施加了冲击而在相机模块内部产生灰尘的情况下也可以获得清晰图像的相机模块。 相机模块包括底座和附接到基座的盖，以便在其间限定保持器可以移位的空间。 基部具有面向盖的上表面，基部的上表面包括形成在上表面上的凹陷集尘部和防尘壁，以围绕基部的开口的整个周边，并且 其中，所述凹陷集尘部的表面包括灰尘粘附层，所述灰尘粘附到所述灰尘粘贴层，由此当所述盖和所述基座之间的空间中产生灰尘并且所述灰尘落到所述基座的上表面上时， 可以防止这种灰尘通过防尘壁进入开口，并且这种灰尘粘附到设置在基座的上表面上的集尘部分的防尘层上。

公开(公告)号：US20080117535A1

公开(公告)日：2008-05-22

申请号：US11928127

申请日：2007-10-30

申请人： Tomohiko Osaka ,  Takashi Ishizawa

发明人： Tomohiko Osaka ,  Takashi Ishizawa

IPC分类号： G02B7/04

CPC分类号： G02B7/102

摘要： A camera module includes a lens unit which constitutes an optical system of the camera module; a holder which houses the lens unit and is displaceable along an optical axis direction of the lens unit, and the coil having a hollow cylindrical portion; a coil having a cylindrical form and provided around the cylindrical portion of the holder; a yoke and magnets provided on the yoke for providing a magnetic field to the coil; upper and lower leaf springs for supporting the holder so that the holder is displaceable along an optical axis direction of the lens unit; and an imaging element provided below the lens unit. The holder has coil holding portions to which the coil is fitted for fixedly providing the coil around the cylindrical portion of the holder without using an adhesive.

摘要翻译： 相机模块包括构成相机模块的光学系统的透镜单元; 容纳所述透镜单元并沿着所述透镜单元的光轴方向移位的保持器，所述线圈具有中空圆柱形部分; 具有圆筒形并且围绕所述保持器的圆柱形部分设置的线圈; 磁轭和设置在磁轭上的磁体，用于向线圈提供磁场; 上和下板簧，用于支撑保持器，使得保持器沿着透镜单元的光轴方向移位; 以及设置在透镜单元下方的成像元件。 保持器具有线圈保持部分，线圈被装配到线圈保持部分，用于在不使用粘合剂的情况下将线圈固定地提供在保持器的圆柱形部分周围