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    • 3. 发明授权
    • Low friction linear tracking tone arm
    • 低摩擦线性跟踪音臂
    • US09019806B1
    • 2015-04-28
    • US14215554
    • 2014-03-17
    • Thomas Lloyd Bowden, Sr.
    • Thomas Lloyd Bowden, Sr.
    • G11B3/00G11B21/16
    • G11B3/00G11B3/12
    • This invention is provides a means of playing LP records with minimal distortion. Low distortion is achieved by eliminating tracking error normally associated with pickup cartridges mounted to pivoting tone arms. This invention discloses a tone arm that constrains the motion of the stylus to straight radial path, mimicking the cutting path of the record lathe, supported on parallel rails by free rolling spherical bearings. Unlike many previous linear tracking tone arms, this invention does not rely on air pressure or servo motor mechanisms. The use of free rolling bearings or axles between parallel tracks fashioned from rails, rods or tubes, eliminates all sources of lateral friction other than pure static and rolling friction of the balls on the rails, rods or tubes. In the preferred embodiment, the fixed rods or tubes are driven synchronously, thereby eliminating static friction of the supporting rolling balls. Friction is further reduced using magnetic or buoyant support of the tone arm to reduce bearing load to that amount minimally sufficient to maintain full contact between the rolling balls and the upper and lower rods.
    • 本发明提供了以最小的失真播放LP记录的方法。 通过消除通常与安装到枢转音臂的拾取盒相关的跟踪误差来实现低失真。 本发明公开了一种音调臂,其将触针的运动限制为直径的径向路径,模拟记录车床的切割路径,通过自由滚动的球面轴承支撑在平行的轨道上。 与许多以前的线性跟踪音臂不同,本发明不依赖于空气压力或伺服电机机构。 在由轨道,杆或管形成的平行轨道之间使用自由滚动轴承或轴,除了滚珠在导轨,杆或管上的纯静态和滚动摩擦之外,消除了所有的侧向摩擦来源。 在优选实施例中,固定杆或管被同步地驱动,从而消除支撑滚珠的静摩擦。 使用音调臂的磁性或浮力支撑来进一步减少摩擦,以将轴承负载减少到足以保持滚珠和上下杆之间的完全接触的量。
    • 4. 发明授权
    • Lens actuator
    • 镜头执行器
    • US08670195B2
    • 2014-03-11
    • US13486187
    • 2012-06-01
    • Kimiya IkushimaHidekazu TanakaHiroyuki TogawaNorifumi SataTakuo OsakiTakatoshi Ono
    • Kimiya IkushimaHidekazu TanakaHiroyuki TogawaNorifumi SataTakuo OsakiTakatoshi Ono
    • G02B7/02G11B3/00
    • G02B27/646G02B7/08
    • A lens actuator includes a carrier that is configured to retain a lens; a first AF coil that is disposed in the carrier while wound about an axis perpendicular to a lens retaining surface; first to fourth magnets that are disposed opposite the first AF coil in four directions parallel to the lens retaining surface; a first OIS coil that is disposed opposite the first magnet; and a second OIS coil that is disposed opposite the second magnet. A current is passed through the first AF coil to move the carrier in a vertical direction along an axis. The currents are passed through the first and second OIS coils to a movable unit in front-back and left-right directions. Therefore, weight reduction of the movable unit can be achieved to provide a lens actuator, in which electric power saving can be achieved.
    • 透镜致动器包括被配置为保持透镜的载体; 第一AF线圈,其围绕垂直于透镜保持面的轴线设置在所述载体中; 第一至第四磁体,其在与所述透镜保持面平行的四个方向上与所述第一AF线圈相对设置; 与第一磁体相对设置的第一OIS线圈; 以及与第二磁体相对设置的第二OIS线圈。 电流通过第一AF线圈沿着轴线在垂直方向上移动载体。 电流在前后左右方向通过第一和第二OIS线圈到可移动单元。 因此,可以实现可动单元的重量减轻,以提供能够实现节电的透镜致动器。
    • 10. 发明授权
    • Driving mechanism, driving device, and lens driving device
    • 驱动机构,驱动装置和透镜驱动装置
    • US07663811B2
    • 2010-02-16
    • US12182502
    • 2008-07-30
    • Atsuhiro NodaTakashi Matsuo
    • Atsuhiro NodaTakashi Matsuo
    • G02B15/14G02B27/64G02B7/02G11B3/00
    • F03G7/065G03B3/10
    • A driving mechanism, a driving device, and a lens driving device includes a lever member. The lever member includes an arm portion for surrounding a part of a driven member in a side direction. The arm portion has a plurality of displacement output portions to be engaged with the driven member. The lever member is constructed in such a manner that a displacement amount of the displacement output portions in a predetermined first axis direction is set larger than a displacement amount of a displacement input portion to be generated by input of a moving force to be applied by a shape memory alloy actuator. The driving mechanism, the driving device, and the lens driving device enable to obtain a large displacement amount with a reduced size and a reduced weight, and stably move the driven member.
    • 驱动机构,驱动装置和透镜驱动装置包括杆构件。 杠杆构件包括用于围绕从动构件的一部分沿侧向包围的臂部。 臂部具有与被驱动构件接合的多个位移输出部。 杠杆构件的构造使得将预定的第一轴方向上的位移输出部的位移量设定为大于通过输入要施加的移动力而产生的位移输入部的位移量 形状记忆合金致动器。 驱动机构,驱动装置和透镜驱动装置能够以减小的尺寸和减轻的重量获得大的位移量,并且稳定地移动被驱动构件。