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11. 发明申请

US20110277462A1 CONTROL OF A SHAPE MEMORY ALLOY ACTUATION ARRANGEMENT 有权
标题翻译：形状记忆合金执行安排的控制
公开(公告)号：US20110277462A1
公开(公告)日：2011-11-17
申请号：US13126401
申请日：2009-10-29
申请人： Thomas Matthew Gregory , Robert John Leedham , David Charles William Richards , Richard Topliss
发明人： Thomas Matthew Gregory , Robert John Leedham , David Charles William Richards , Richard Topliss
IPC分类号： F01B29/10
CPC分类号： F03G7/065 , G03B3/10 , H04N5/2254 , H04N5/2257
摘要： An SMA actuation apparatus comprises: an SMA actuator arranged to drive movement of a movable element; a current supply supplying a drive current; a detection circuit detecting a measure of the resistance of the SMA actuator; and a control unit operative to generate a closed-loop control signal supplied to current supply for controlling the power of the drive current to drive the resistance of the SMA actuator to a target value. The control unit derives: an estimate of a characteristic temperature of the SMA actuation apparatus on the basis of the supplied power, using a thermal model; and a resistance offset on the basis thereof. The closed-loop control signal is generated on the basis of the error between the measure of the resistance of the SMA actuator and the target value of the resistance of the SMA actuator, adjusted by the resistance offset to compensate for variations in resistance.
摘要翻译： SMA致动装置包括：SMA致动器，被布置成驱动可移动元件的运动; 提供驱动电流的电流源; 检测所述SMA致动器的电阻的测量电路; 以及控制单元，用于产生提供给电流源的闭环控制信号，以控制驱动电流的功率以将SMA致动器的电阻驱动到目标值。控制单元使用热模型来估计基于所提供的功率的SMA致动装置的特征温度; 和基于其的电阻偏移。基于SMA致动器的电阻的测量与SMA致动器的电阻的目标值之间的误差产生闭环控制信号，由电阻偏移调整以补偿电阻的变化。

12. 发明授权

US07974025B2 Shape memory alloy actuation apparatus 有权
标题翻译：形状记忆合金致动装置
公开(公告)号：US07974025B2
公开(公告)日：2011-07-05
申请号：US12596925
申请日：2008-04-22
申请人： Richard Topliss
发明人： Richard Topliss
IPC分类号： G02B7/02
CPC分类号： G03B3/10
摘要： A miniature camera lens actuation apparatus employs an SMA actuator comprising SMA wire to move a camera lens element. To provide autofocus, the SMA actuator is heated across its range of contraction and the resistance at which the focus is at an acceptable level is stored. To combat hysteresis, there is performed a flyback in which the SMA actuator is cooled, before heating the SMA actuator to the stored resistance. The stored resistance is adjusted to combat creep caused by non-linear heating of the SMA actuator. The SMA wire has conductive material extending along on a portion of the SMA wire which extends from a member connected to the SMA wire and being in electrical connection with the SMA wire in order to short out that portion of the SMA wire to reduce creep. Additional material is applied over the SMA wire and the member to reduce fatigue.
摘要翻译：微型相机镜头致动装置使用包括SMA线的SMA致动器来移动相机镜头元件。为了提供自动对焦，SMA致动器在其收缩范围内被加热，并且存储焦点处于可接受水平的电阻。为了对抗滞后，在将SMA致动器加热到存储的电阻之前，执行了一个反激式，其中SMA致动器被冷却。调整存储的电阻以抵抗由SMA致动器的非线性加热引起的蠕变。 SMA线具有沿着SMA线的一部分延伸的导电材料，SMA部分从连接到SMA线的部件延伸并且与SMA线电连接，以缩短SMA线的那部分以减少蠕变。额外的材料应用于SMA线和构件上以减少疲劳。

13. 发明申请

US20140055630A1 OPTICAL IMAGE STABILISATION 有权
标题翻译：光学图像稳定
公开(公告)号：US20140055630A1
公开(公告)日：2014-02-27
申请号：US13825382
申请日：2011-09-22
申请人： Thomas Matthew Gregory , Richard Topliss
发明人： Thomas Matthew Gregory , Richard Topliss
IPC分类号： H04N5/232
CPC分类号： H04N5/23258 , F03G7/065 , G02B27/646 , G03B3/02 , G03B2205/0023 , G03B2205/0076 , H04N5/2257 , H04N5/23261 , H04N5/23287
摘要： A camera apparatus capable of providing optical image stabilisation comprises: a support structure; a camera unit comprising an image sensor and a lens system; a suspension system comprising a plurality of flexure elements supporting the camera unit on the support structure in a manner allowing the camera unit to tilt; and a plurality of SMA actuators. A sensor arrangement, whose output is used as the basis for generating drive signals, is mounted on the camera unit. A control circuit generates drive signals for the SMA actuators, by deriving closed-loop control signals representative of a desired degree of variation in the power of the drive signals from the output signals of the sensor arrangement without dependence on any measurement of the resistance of the SMA actuators, and generating the drive signals with powers that varies from a set-point power in correspondence with the closed-loop control signal.
摘要翻译：能够提供光学图像稳定性的相机装置包括：支撑结构; 包括图像传感器和透镜系统的相机单元; 一种悬挂系统，包括以允许相机单元倾斜的方式在支撑结构上支撑相机单元的多个挠曲元件; 和多个SMA致动器。将其输出用作产生驱动信号的基础的传感器装置安装在相机单元上。一个控制电路产生用于SMA致动器的驱动信号，通过从传感器装置的输出信号得出表示驱动信号的功率的期望变化程度的闭环控制信号，而不依赖于对传感器装置的电阻的任何测量 SMA致动器，并且产生具有与闭环控制信号对应的设定点功率变化的功率的驱动信号。

14. 发明申请

US20130002933A1 SMA ACTUATION APPARATUS 有权
标题翻译： SMA执行装置
公开(公告)号：US20130002933A1
公开(公告)日：2013-01-03
申请号：US13581150
申请日：2011-02-28
申请人： Richard Topliss , Andrew Benjamin David Brown
发明人： Richard Topliss , Andrew Benjamin David Brown
IPC分类号： H02N10/00 , H04N5/232
CPC分类号： G03B3/10 , G02B7/005 , G02B7/08 , G02B27/646 , H04N5/2254 , H04N5/23287
摘要： An SMA actuation apparatus uses SMA actuator wires to move a movable element supported on a support structure, for example to provide optical image stabilisation. Eight SMA actuator wires are arranged inclined with respect to a notional primary axis with a pair of the SMA actuator wires on each of four sides around the primary axis. The SMA actuators are connected so that on contraction two groups of four SMA actuator wires provide a force with a component in opposite directions along the primary axis, so that the groups are capable of providing movement along the primary axis. The SMA actuator wires of each group have 2-fold rotational symmetry about the primary axis, so that there are SMA actuator wires opposing each other that are capable of providing lateral movement or tilting.
摘要翻译： SMA致动装置使用SMA致动器线来移动支撑在支撑结构上的可移动元件，例如以提供光学图像稳定。八个SMA致动器线相对于概念主轴倾斜地布置，在主轴上的四个侧面中的每一侧上具有一对SMA致动器线。 SMA致动器被连接，使得在收缩时，两组四个SMA致动器线沿着主轴线向相反方向提供与部件成比例的力，使得这些组能够沿主轴提供运动。每个组的SMA致动器导线围绕主轴线具有2倍的旋转对称性，使得存在能够提供横向运动或倾斜的彼此相对的SMA致动器线。

15. 发明申请

US20100283887A1 SHAPE MEMORY ALLOY ACTUATION APPARATUS 有权
标题翻译：形状记忆合金执行装置
公开(公告)号：US20100283887A1
公开(公告)日：2010-11-11
申请号：US12740488
申请日：2008-10-30
申请人： Richard Topliss , Dominic George Webber
发明人： Richard Topliss , Dominic George Webber
IPC分类号： H04N5/232 , F03G7/06 , G02B7/02
CPC分类号： F03G7/065 , G02B7/08 , G03B3/10 , H04N5/2257
摘要： A shape memory alloy actuation apparatus comprises a movable element supported on a support structure by a suspension system comprising a plurality of resilient flexures. A shape memory alloy actuator drives movement of the movable element on contraction. An end-stop limits the movement of the movable element in the opposite direction. Rather than using the resilient flexures of the suspension system as the sole biassing means, an additional Massing element biasses the movable element against the SMA actuator. When the moveable element is held against the end-stop, the force applied by the biassing element is greater than the force applied by the flexures of the suspension system. This reduces the design constraints, for example allowing a greater range of movement.
摘要翻译：形状记忆合金致动装置包括通过包括多个弹性挠曲的悬架系统支撑在支撑结构上的可移动元件。形状记忆合金致动器驱动可动元件的收缩运动。终点限制可移动元件在相反方向上的运动。除了使用悬架系统的弹性挠曲件作为唯一的偏置装置之外，附加的质量元件将可移动元件偏压抵靠SMA致动器。当可移动元件抵靠端挡时，由偏置元件施加的力大于由悬架系统的挠曲力施加的力。这减少了设计限制，例如允许更大的移动范围。

16. 发明申请

US20090295986A1 CAMERA LENS ACTUATION APPARATUS 有权
标题翻译：摄像机镜头执行装置
公开(公告)号：US20090295986A1
公开(公告)日：2009-12-03
申请号：US12295382
申请日：2007-03-23
申请人： Richard Topliss , David Livingstone , Robert John Leedham
发明人： Richard Topliss , David Livingstone , Robert John Leedham
IPC分类号： H04N5/225
CPC分类号： G03B13/34 , F03G7/065 , G02B7/023 , G02B7/026 , G02B7/08 , G02B13/001
摘要： A camera lens actuation apparatus for driving motion of a camera lens supported on a support structure by a suspension system. The apparatus incorporates a subassembly comprising SMA wire connected to at least one mounting member which is mounted to the support structure. At least one pair of lengths of SMA wire are held in tension between the camera lens element and the support structure at respective acute angles to the optical axis applying a tensional force having a component along the optical axis. The lengths of SMA wire in the pair are held at angle as viewed along the optical axis. There may be plural pairs with a balanced arrangement in which the forces generated have no net component perpendicular to the optical axis and generate no net torque around any axis perpendicular to the optical axis. A control circuit controls heating of the SMA wire in response to a measure of its resistance.
摘要翻译：一种用于通过悬挂系统驱动支撑在支撑结构上的相机镜头的运动的相机镜头致动装置。该装置包括一个子组件，该子组件包括连接到至少一个安装到支撑结构上的安装构件的SMA线。至少一对长度的SMA线在照相机透镜元件和支撑结构之间以相对于光轴的锐角保持张力，施加具有沿着光轴的分量的张力。一对SMA中的SMA线的长度保持为沿着光轴的角度。可以存在具有平衡布置的多对，其中产生的力没有垂直于光轴的网分量，并且不围绕垂直于光轴的任何轴线产生净转矩。控制电路响应于其电阻的测量来控制SMA线的加热。

17. 发明申请

US20060057327A1 Method and apparatus for manufacturing ceramic devices 审中-公开
标题翻译：制造陶瓷器件的方法和装置
公开(公告)号：US20060057327A1
公开(公告)日：2006-03-16
申请号：US10544176
申请日：2004-02-09
申请人： Richard Topliss , David Richards
发明人： Richard Topliss , David Richards
IPC分类号： B32B3/02 , B31C1/00 , B29C53/82
CPC分类号： H01L41/43 , H01L41/33 , Y10T428/21
摘要： An apparatus for manufacturing a ceramic device from tape (21) in a green state comprises a cylindrical rod (23) as a first forming element, a first clamping system (241) for fixing a first end of the tape (21) with respect to the cylindrical rod (23) and a first mechanism (20, 231) for winding the tape (21) around the cylindrical rod (23) to preform the tape (21). The apparatus further comprises a second forming element (33), a second clamping system (351, 352) for fixing at least one end of the pre-formed tape (21) with respect to the second forming element (33), and a second mechanism (331, 351) which winds the pre-formed tape (21) around the second forming element (33).
摘要翻译：用于从绿色状态的带（21）制造陶瓷器件的设备包括：作为第一成形元件的圆柱形杆（23），用于将带（21）的第一端相对于第一形成元件固定的第一夹紧系统（241）所述圆柱形杆（23）和用于将所述带（21）围绕所述圆柱形杆（23）缠绕以预成型带（21）的第一机构（20,231）。该装置还包括第二成形元件（33），用于相对于第二成形元件（33）固定预形成带（21）的至少一端的第二夹紧系统（351,352），以及第二机构（331,351）围绕第二成形元件（33）缠绕预成形带（21）。

18. 发明授权

US08866918B2 Optical image stabilisation 有权
标题翻译：光学图像稳定
公开(公告)号：US08866918B2
公开(公告)日：2014-10-21
申请号：US13825382
申请日：2011-09-22
申请人： Thomas Matthew Gregory , Richard Topliss
发明人： Thomas Matthew Gregory , Richard Topliss
IPC分类号： H04N5/228 , H04N5/232 , H04N5/225 , G03B3/02 , F03G7/06 , G02B27/64
CPC分类号： H04N5/23258 , F03G7/065 , G02B27/646 , G03B3/02 , G03B2205/0023 , G03B2205/0076 , H04N5/2257 , H04N5/23261 , H04N5/23287
摘要： A camera apparatus capable of providing optical image stabilization comprises: a support structure; a camera unit comprising an image sensor and a lens system; a suspension system comprising a plurality of flexure elements supporting the camera unit on the support structure in a manner allowing the camera unit to tilt; and a plurality of SMA actuators. A sensor arrangement, whose output is used as the basis for generating drive signals, is mounted on the camera unit. A control circuit generates drive signals for the SMA actuators, by deriving closed-loop control signals representative of a desired degree of variation in the power of the drive signals from the output signals of the sensor arrangement without dependence on any measurement of the resistance of the SMA actuators, and generating the drive signals with powers that varies from a set-point power in correspondence with the closed-loop control signal.
摘要翻译：能够提供光学图像稳定性的相机装置包括：支撑结构; 包括图像传感器和透镜系统的相机单元; 一种悬挂系统，包括以允许相机单元倾斜的方式在支撑结构上支撑相机单元的多个挠曲元件; 和多个SMA致动器。将其输出用作产生驱动信号的基础的传感器装置安装在相机单元上。一个控制电路产生用于SMA致动器的驱动信号，通过从传感器装置的输出信号得出表示驱动信号功率的期望变化程度的闭环控制信号，而不依赖于对传感器装置的电阻的任何测量 SMA致动器，并且产生具有与闭环控制信号对应的设定点功率变化的功率的驱动信号。

19. 发明申请

US20130222685A1 CAMERA APPARATUS 有权
标题翻译：相机设备
公开(公告)号：US20130222685A1
公开(公告)日：2013-08-29
申请号：US13814766
申请日：2011-08-03
申请人： Richard Topliss , Andrew Benjamin David Brown
发明人： Richard Topliss , Andrew Benjamin David Brown
IPC分类号： H04N5/225
CPC分类号： H04N5/2251 , G02B27/646 , G03B5/00 , G03B2205/0023 , G03B2205/0076 , H04N1/00307 , H04N5/2257 , H04N5/23287
摘要： In a camera apparatus, two SMA actuator subsystems each comprise two SMA wires connected between a camera unit and a support structure, hooked over a pivot element defining pivot axes that lie in a common plane along the optical axis. Differential contraction of the SMA wires drives rotation. The SMA actuator subsystems are opposed, but the SMA wires of each subsystem are fixed respectively to the camera unit and the support structure, reducing the height. A non-conductive substrate supporting conductive tracks electrically connected to the SMA actuator system is configured as a flexure arrangement between the camera unit and the support structure. The flexure arrangement is connected to the camera unit at a position in the common plane reducing lateral resistance to tilt. Use of an intermediate connector element allows the circuit board to be arranged in front of the intermediate connector inside the height of the lens system.
摘要翻译：在相机装置中，两个SMA致动器子系统各自包括连接在相机单元和支撑结构之间的两条SMA线，钩在枢轴元件上，该枢轴元件限定位于沿着光轴的公共平面中的枢转轴线。 SMA线的差动收缩驱动旋转。 SMA执行器子系统相对，但每个子系统的SMA线分别固定在摄像机单元和支撑结构上，降低了高度。电连接到SMA致动器系统的支撑导电轨道的非导电衬底被配置为相机单元和支撑结构之间的挠曲布置。弯曲布置在公共平面中的位置处连接到相机单元，减小横向阻力以倾斜。使用中间连接器元件允许电路板布置在透镜系统的高度内的中间连接器的前面。

20. 发明授权

US08395855B2 Shape memory alloy actuation apparatus 有权
标题翻译：形状记忆合金致动装置
公开(公告)号：US08395855B2
公开(公告)日：2013-03-12
申请号：US13129520
申请日：2009-11-20
申请人： Richard Topliss
发明人： Richard Topliss
IPC分类号： G02B7/02
CPC分类号： F03G7/065 , G02B7/08 , G03B3/10
摘要： A shape memory alloy actuation apparatus comprises a camera lens element supported on the support structure by a plurality of resilient flexures that guide movement of the movable element along the optical axis. A shape memory alloy actuator biassed by the resilient flexures and an additional resilient biassing element is arranged to drive movement of the camera lens element. An end-stop limits movement of the camera lens element at a position where the shape memory alloy actuator has a predetermined length that is above the length corresponding on the local maximum resistance by an amount not greater than 15% of the difference between (i) the length corresponding to the local maximum resistance and (ii) the length corresponding to the local minimum resistance.
摘要翻译：形状记忆合金致动装置包括通过引导可移动元件沿着光轴的运动的多个弹性挠曲件支撑在支撑结构上的照相机镜头元件。通过弹性挠曲件偏置的形状记忆合金致动器和附加的弹性偏移元件布置成驱动相机透镜元件的运动。停止限制相机镜头元件在形状记忆合金致动器具有预定长度的位置上的运动，该预定长度高于局部最大电阻上对应的长度，其量不大于（i）对应于局部最大电阻的长度和（ii）对应于局部最小电阻的长度。

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