公开(公告)号：WO2012066285A1

公开(公告)日：2012-05-24

申请号：PCT/GB2011/001609

申请日：2011-11-15

Applicant: CAMBRIDGE MECHATRONICS LIMITED ,  BROWN, Andrew Benjamin David ,  LEEDHAM, Robert John ,  EASTON, Mark George

Inventor： BROWN, Andrew Benjamin David ,  LEEDHAM, Robert John ,  EASTON, Mark George

IPC: F03G7/06 ,  G03B3/10

CPC classification number: H04N5/23248 ,  F03G7/065 ,  G03B3/10 ,  G03B2205/0076

Abstract: An SMA actuation apparatus comprises a support structure, a movable element movably supported on the support structure and an arrangement of three or more SMA actuator wires mechanically connected between the support structure and the movable element. The SMA actuator wires have an interconnection at the movable element that electrically connects the group of SMA actuator wires together. This avoids the need to make a separate electrical connection to the movable element.

Abstract translation: SMA致动装置包括支撑结构，可移动地支撑在支撑结构上的可移动元件以及机械连接在支撑结构和可移动元件之间的三个或更多个SMA致动器线的布置。 SMA致动器线在可移动元件处具有将该一组SMA致动器线电连接在一起的互连。 这避免了与可动元件分开的电连接的需要。

公开(公告)号：WO2017098249A1

公开(公告)日：2017-06-15

申请号：PCT/GB2016/053865

申请日：2016-12-08

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： BROWN, Andrew Benjamin David

IPC: G03B3/00 ,  G03B3/10 ,  G03B5/00

CPC classification number: G03B3/10 ,  G03B5/00 ,  G03B2205/0007 ,  G03B2205/0076

Abstract: Resistance feedback control of drive signals for plural SMA actuator wires in an SMA actuation arrangement is performed. Target resistance values are set representing a desired position of a movable element with respect to the support structure. Measures of resistance of each SMA actuator wire are detected. Errors are derived from the target resistance values and the detected measures of resistance, the errors being adjusted by offsets. The powers of the drive signals supplied to SMA actuator wires are controlled in accordance with the adjusted errors. The offsets have values selected to adjust the actual position of the movable element to match the desired positions represented by the target resistance values.

Abstract translation: 执行SMA致动布置中的多个SMA致动器线的驱动信号的电阻反馈控制。 目标电阻值被设定为表示可移动元件相对于支撑结构的期望位置。 检测每个SMA执行器电线的电阻测量值。 错误来自目标电阻值和检测到的电阻测量值，误差通过偏移进行调整。 提供给SMA执行器导线的驱动信号功率根据调整后的误差进行控制。 偏移量的值被选择为调整可移动元件的实际位置以匹配由目标电阻值表示的期望位置。

公开(公告)号：WO2017072525A1

公开(公告)日：2017-05-04

申请号：PCT/GB2016/053356

申请日：2016-10-28

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： BROWN, Andrew Benjamin David

IPC: H04N5/232 ,  H04N5/225

CPC classification number: H04N5/23287 ,  H04N5/2253

Abstract: A camera assembly comprises a support structure and an image sensor mounted on a carrier that is suspended on the support structure by at least one plain bearing that allows movement of the carrier and the image sensor relative to the support structure in any direction laterally to the light-sensitive region of the image sensor. An actuator arrangement comprising plural shape memory alloy wires is arranged to move the carrier and the image sensor relative to the support structure for providing optical image stabilisation of the image captured by the image sensor.

Abstract translation: 照相机组件包括支撑结构和安装在载体上的图像传感器，该载体通过至少一个滑动轴承悬挂在支撑结构上，滑动轴承允许载体和图像传感器相对于支撑件移动 横向于图像传感器的光敏区域的任何方向上的结构。 包括多个形状记忆合金线的致动器装置被布置成相对于支撑结构移动载体和图像传感器，以提供由图像传感器捕获的图像的光学图像稳定。

公开(公告)号：WO2013175197A1

公开(公告)日：2013-11-28

申请号：PCT/GB2013/051325

申请日：2013-05-21

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： EDDINGTON, Robin ,  HOWARTH, James ,  BROWN, Andrew Benjamin David

IPC: G02B27/64 ,  H04N5/232 ,  F03G7/06

CPC classification number: F03G7/065 ,  G02B27/646 ,  G03B5/00 ,  G03B2205/0015 ,  G03B2205/0076 ,  H04N5/23287

Abstract: An SMA actuation apparatus moves a movable element relative to a support structure in two orthogonal directions using a total of four SMA actuator wires each connected at its ends between the movable element and the support structure and extending perpendicular to the primary axis. None of the SMA actuator wires are collinear, but the SMA actuator wires have an arrangement in which they are capable of being selectively driven to move the movable element relative to the support structure to any position in said range of movement without applying any net torque to the movable element in the plane of the two orthogonal directions around the primary axis. Accordingly, it is possible to drive movement whilst balancing the forces to limit torque around the primary axis.

Abstract translation: SMA致动装置使用总共四个SMA致动器线在两个正交方向上相对于支撑结构移动可移动元件，每个SMA致动器线在其可移动元件和支撑结构之间的端部处连接并且垂直于主轴线延伸。 没有SMA致动器线是共线的，但是SMA致动器线具有这样的布置，其中它们能够被选择性地驱动以将可移动元件相对于支撑结构移动到所述移动范围内的任何位置，而不施加任何净扭矩 围绕主轴的两个正交方向的平面中的可移动元件。 因此，可以在平衡力的同时驱动运动以限制主轴周围的转矩。

公开(公告)号：WO2018224514A1

公开(公告)日：2018-12-13

申请号：PCT/EP2018/064803

申请日：2018-06-05

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： BROWN, Andrew Benjamin David ,  HOWARTH, James ,  POWELL, Thomas James ,  HO, Eugene Yu Jen ,  MORGAN, Jonathan

IPC: G06F3/01 ,  G06F3/02 ,  H01H1/00 ,  H01H13/00

Abstract: Broadly speaking, embodiments of the present techniques provide apparatus and methods for providing haptic feedback, and in particular to user- operated buttons for electrical and electronic products that provide haptic feedback to the user when operated.

公开(公告)号：WO2018073585A1

公开(公告)日：2018-04-26

申请号：PCT/GB2017/053151

申请日：2017-10-18

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： BUNTING, Stephen Matthew ,  BROWN, Andrew Benjamin David ,  EDDINGTON, Robin

IPC: G03B3/10

Abstract: A device comprising a component (4) and an SMA actuator assembly (10) comprising a first part (12) and a second part (11) relatively movable and at least one SMA wire (10) connected between the two parts so as to drive relative movement of the first and second parts, wherein the component is placed on a bed of adhesive provided on the first part, while maintaining the at least one SMA wire at an elevated temperature at which the SMA wire is partially in an austenitic state and in tension, the position of the component is adjusted to a desired position with respect to the second part, and the adhesive is cured to fix the component to the first part in the desired position.

Abstract translation: 包括部件（4）和SMA致动器组件（10）的装置，所述SMA致动器组件包括可相对移动的第一部分（12）和第二部分（11）以及连接的至少一个SMA线（10） 在两个部件之间以便驱动第一和第二部件的相对运动，其中该部件被放置在设置在第一部件上的粘合剂床上，同时保持至少一根SMA丝处于升高的温度，在该温度下，SMA丝 部分地处于奥氏体状态并且处于张紧状态时，部件的位置相对于第二部分被调节到期望的位置，并且粘合剂被固化以将部件固定到第一部件上的期望位置。

公开(公告)号：WO2016189314A1

公开(公告)日：2016-12-01

申请号：PCT/GB2016/051527

申请日：2016-05-26

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： BUNTING, Stephen Matthew ,  HOWARTH, James ,  BROWN, Andrew Benjamin David

IPC: F03G7/06 ,  G02B7/08 ,  G03B3/10

CPC classification number: F03G7/065 ,  G02B7/08 ,  G02B7/09 ,  G02B27/646 ,  G03B3/10 ,  G03B2205/0076

Abstract: An SMA actuator arrangement is assembled using a strut element shaped to comprise a sacrificial strut body and crimp tabs held apart by the sacrificial strut body. A SMA wire is laid across the crimp tabs which are folded and pressed to form crimps holding the SMA wire. The crimps are then attached to static and moving parts, after which the sacrificial strut body is removed. The method allows the crimping to be performed without hindrance from the static and moving parts, the sacrificial strut body holding the relative locations of the crimps prior to attachment.

Abstract translation: 使用支柱元件组装SMA致动器装置，所述支柱元件成形为包括牺牲支柱主体和由牺牲支柱主体分开的压接片。 将SMA线放置在压接片上，折叠并压紧以形成夹持SMA线的卷曲。 然后将卷曲连接到静态和运动部件，之后去除牺牲支柱体。 该方法允许在静止和移动部件的妨碍下执行压接，牺牲支柱体在连接之前保持卷曲器的相对位置。

公开(公告)号：WO2014083318A1

公开(公告)日：2014-06-05

申请号：PCT/GB2013/053062

申请日：2013-11-20

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： HOWARTH, James ,  BROWN, Andrew Benjamin David

IPC: G02B27/64

CPC classification number: H04N5/23258 ,  G02B7/023 ,  G02B7/026 ,  G02B13/001 ,  G02B27/646 ,  H04N5/23287

Abstract: Suspension System for a Camera Lens Element A camera lens elementis suspended on a support structure by balls that allow movement of the camera lens elementorthogonal to the optical axis and plural flexures connected between the support structure and the camera lens elementto bias them against the balls whilst permitting said movement of the camera lens elementorthogonal to the optical axis. Lateral movement is driven by a lateral actuation arrangement comprising plural SMA actuator wires.The flexures provide a lateral biasing force that biases the camera lens elementtowards a central position.An electrical connection is made through the flexures from the support structure to the camera lens element. The flexures may be connected to laminated structures. Fig.

Abstract translation: 照相机镜头元件的悬挂系统相机镜头元件通过允许正交于光轴的相机镜头元件移动的支撑结构悬挂在支撑结构上，并且连接在支撑结构和相机镜头元件之间的多个弯曲部将其偏压抵抗球，同时允许 所述摄像机镜头元件的运动与光轴正交。 侧向运动由包括多个SMA致动器线的横向致动装置驱动。挠曲件提供横向偏置力，其将相机透镜元件偏置到中心位置。通过从支撑结构到相机透镜元件的挠曲件进行电连接。 挠曲件可以连接到层压结构。 图。

公开(公告)号：WO2014076463A1

公开(公告)日：2014-05-22

申请号：PCT/GB2013/052959

申请日：2013-11-11

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： BROWN, Andrew Benjamin David ,  GREGORY, Thomas Matthew

IPC: H04N5/232 ,  F03G7/06 ,  G02B27/64

CPC classification number: G02B27/646 ,  F03G7/065 ,  G03B3/10 ,  G03B5/00 ,  G03B2205/0076 ,  H04N5/2328

Abstract: SMA actuator wires in an SMA actuation apparatus are connected in tension between a movable element and a support structure, applying forces to the movable element in opposed directions. Measures of the resistances of the SMA actuator wires are detected. A feedback difference measure is derived being the sum of the measures of resistance of the SMA actuator wires, relatively scaled by factors, in respect of the SMA actuator wires, the magnitude of which represents a component along the predetermined axis of a force applied by the SMA actuator wire and the sign of which represents a direction along the predetermined axis. The ratio has opposite signs for respective ones of said opposed directions. The powers of drive signals supplied to the SMA actuator wires are controlled in response to the feedback difference measure to reduce the difference between the feedback difference measure and a target difference measure.

Abstract translation: SMA致动装置中的SMA致动器线被张紧地连接在可移动元件和支撑结构之间，在相反的方向上向可移动元件施加力。 检测SMA致动器丝的电阻的测量。 反馈差分测量是针对SMA致动器导线的相对比例因子的SMA致动器导线的电阻测量的总和得出的，SMA致动器线的大小表示沿着预定轴施加的力的分量 SMA致动器线，其符号表示沿着预定轴线的方向。 所述比例对于所述相对方向中的相应方向具有相反的符号。 响应于反馈差异测量来控制提供给SMA致动器线的驱动信号的功率，以减小反馈差测量与目标差测量之间的差。

公开(公告)号：WO2018046937A1

公开(公告)日：2018-03-15

申请号：PCT/GB2017/052628

申请日：2017-09-08

Applicant: CAMBRIDGE MECHATRONICS LIMITED

Inventor： WEBBER, Dominic George ,  BROWN, Andrew Benjamin David ,  HOWARTH, James ,  POWELL, Thomas James ,  BURBRIDGE, Daniel John ,  BUNTING, Stephen Matthew ,  HO, Eugene Yu Jen ,  MORGAN, Jonathan

IPC: G06F3/01 ,  G06F3/02

CPC classification number: G06F3/0202 ,  G06F3/016 ,  H01H2209/058

Abstract: A control assembly provides haptic feedback to the user of a device such as a smartphone. The button includes a shape memory alloy actuator which moves the button laterally with respect to the finger press. The actuator can be programmed and controlled to provide a variety of haptic waveforms. The control assembly may be used in combination with a capacitive sensor provides a tactile feedback which is not otherwise present with a capacitive control. The control assembly used in combination with a mechanical control provides a range of haptic waveforms not otherwise possible with a mechanical control. The control assembly can be used in smartphones, wearables, keyboards and other portable electronic devices.

Abstract translation: 控制组件向诸如智能电话的设备的用户提供触觉反馈。 该按钮包括形状记忆合金致动器，其相对于手指按压器侧向移动按钮。 致动器可以被编程和控制以提供各种触觉波形。 控制组件可以与电容式传感器结合使用，以提供触觉反馈，其不以其他方式与电容式控制一起出现。 与机械控制结合使用的控制组件提供了一系列触觉波形，这些触觉波形在机械控制方面是不可能的。 控制组件可用于智能手机，可穿戴设备，键盘和其他便携式电子设备。