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1. 发明授权

US07486004B2 Piezolelectric devices 失效
标题翻译：压电元件
公开(公告)号：US07486004B2
公开(公告)日：2009-02-03
申请号：US10493743
申请日：2002-10-28
申请人： James Allan , Gareth McKevitt , Mark Richard Shepherd , Richard Topliss
发明人： James Allan , Gareth McKevitt , Mark Richard Shepherd , Richard Topliss
IPC分类号： H01L41/08
CPC分类号： H01L41/0953 , H01L41/33
摘要： A piezoelectric device comprising a continuous piezoelectric element (10) extending alternately back and forth to form a plurality of parallel, straight portions (14) arranged in a stack with intermediate linkage portions (15) at alternate ends of the straight portions (14). Each straight portion (14) is constructed and arranged with electrodes (12, 13) to bend, on activation, in the stacking direction in which the straight portions (14) are stacked with opposite curvature in two halves (16, 17) of the straight portion (14) to create displacement between the ends of the straight portion (14) in the stacking direction adding in series through the stack. The continuous nature of the piezoelectric element (10) eases manufacture. Devices with two types of construction are disclosed. Firstly, the continuous piezoelectric element (10) may have a bender construction such as a bimorph bender construction. Secondly, the continuous piezoelectric element (101) may be a sheet of piezoelectric material having overlapping slits (102) extending from alternate sides to form the straight portions (103) between the slits (102), with opposed electrodes (105) arranged on each major surface of the sheet in pairs separated across, and extending along, the straight portions (103).
摘要翻译：一种压电装置，包括连续的压电元件（10），所述连续压电元件（10）交替地前后延伸以形成多个平行的直线部分（14），所述直的部分以直线部分（14）的交替端部处的中间连接部分（15）布置成堆叠。每个直线部分（14）被构造和布置成具有电极（12,13），在激活时，沿堆叠方向弯曲，其中直线部分（14）以相反的曲率堆叠在两个半部（16,17）中直线部分（14），以在堆叠方向上在直线部分（14）的端部之间产生位移，通过堆叠串联。压电元件（10）的连续性使制造变得容易。公开了具有两种结构类型的装置。首先，连续压电元件（10）可以具有诸如双压电晶片弯曲机结构的弯曲结构。其次，所述连续压电元件（101）可以是具有从交替侧延伸的重叠狭缝（102）的压电材料片，以在狭缝（102）之间形成直线部分（103），并且每个上设置有相对电极（105）片材的主表面成对地分离并且沿直线部分（103）延伸。

2. 发明授权

US07227296B2 Protective housing for a ceramic actuator 失效
标题翻译：陶瓷执行机构的保护壳
公开(公告)号：US07227296B2
公开(公告)日：2007-06-05
申请号：US10545971
申请日：2004-02-25
申请人： Richard Topliss , James Allan , Mark Richard Shepherd
发明人： Richard Topliss , James Allan , Mark Richard Shepherd
IPC分类号： H01L41/053
CPC分类号： G02B7/04 , H01L41/053 , H01L41/094
摘要： An example housing that protects a ceramic actuator from excessive and damaging displacement comprises a protective structure arranged to limit the motion of the actuator by contacting at least one section of the actuator between fixed and moving terminals of said actuator. A suspension system for a lens holder of a miniature camera actuated by a ceramic actuator comprises four pivotally connected link elements in form of a parallelogram connected between a housing and the lens holder.
摘要翻译：保护陶瓷致动器免受过度和损坏的位移的示例性壳体包括保护结构，其布置成通过使致动器的至少一个部分在所述致动器的固定端子和移动端子之间接触来限制致动器的运动。用于由陶瓷致动器致动的微型照相机的透镜保持器的悬挂系统包括连接在壳体和透镜保持器之间的平行四边形形式的四个枢转连接的连接元件。

3. 发明授权

US07161279B2 Curved electro-active actuators 失效
标题翻译：弯曲电动执行器
公开(公告)号：US07161279B2
公开(公告)日：2007-01-09
申请号：US10494138
申请日：2002-10-30
申请人： Richard Topliss , Neel Bhalsod , Mark Richard Shepherd
发明人： Richard Topliss , Neel Bhalsod , Mark Richard Shepherd
IPC分类号： H01L41/08
CPC分类号： H01L41/0953 , H01L41/092
摘要： Electro-active actuators (310) and methods of manufacturing such actuators are described with such actuators (310) having a plurality of electro-active segments (311) arranged along a curved line with each segment (311) being essentially planar and coupled to adjacent segments (311) through joint sections (312) placed at opposite corners of the segment (311). The actuators (310) exhibit a displacement in a different direction than the direction of displacement of a segment when seen in isolation. They can be made from a continuous tape of material, preferably by die punching.
摘要翻译：使用具有沿着曲线布置的多个电活动段（311）的这种致动器（310）来描述电活动致动器（310）和制造这种致动器的方法，每个段（311）基本上是平面的并且被耦合到相邻通过放置在段（311）的相对拐角处的接合部分（312）的段（311）。当孤立地看到时，致动器（310）在与段的位移方向不同的方向上表现出位移。它们可以由连续的材料带制成，优选通过冲模制成。

4. 发明授权

US07302068B2 Loudspeaker 失效
标题翻译：喇叭
公开(公告)号：US07302068B2
公开(公告)日：2007-11-27
申请号：US10480733
申请日：2002-06-19
申请人： Simon Andrew Longbottom , Andrew Matheson , Gareth McKevitt , Richard Topliss , Matthew John Pitts , Mark Richard Shepherd
发明人： Simon Andrew Longbottom , Andrew Matheson , Gareth McKevitt , Richard Topliss , Matthew John Pitts , Mark Richard Shepherd
IPC分类号： H04R25/00
CPC分类号： H04R17/00 , H04R2217/01 , H04R2499/11 , H04R2499/15
摘要： A loudspeaker for audible sound is described having a sound emitting element mounted onto a support structure and at least one actuator adapted to rotate said sound emitting element around a hinge section, wherein the actuator is made of piezoelectric material. In variants the actuator forms part of the hinge section and the loudspeaker is capable of generating vibrations through its support structure.
摘要翻译：描述了一种用于可听见的声音的扬声器，其具有安装在支撑结构上的声音发射元件和至少一个致动器，其适于围绕铰链部分旋转所述发音元件，其中致动器由压电材料制成。在变型中，致动器形成铰链部分的一部分，并且扬声器能够通过其支撑结构产生振动。

5. 发明授权

US07166952B2 Piezoelectric structures 失效
标题翻译：压电结构
公开(公告)号：US07166952B2
公开(公告)日：2007-01-23
申请号：US10491220
申请日：2002-09-26
申请人： Richard Topliss , David Livingstone , Andrew Matheson , Gareth McKevitt , Mark Richard Shepherd , Anthony Hooley
发明人： Richard Topliss , David Livingstone , Andrew Matheson , Gareth McKevitt , Mark Richard Shepherd , Anthony Hooley
IPC分类号： H01L41/08
CPC分类号： H01L41/094 , H01L41/098
摘要： An equivalent to the spatial separation either side of a nominal median plane that is inherent in a bimorph (with one piezoelectric layer on one side, and the second on the other side of the plane) is attained by structurally shaping the cross-section of a simple, single piezoelectric layer (11) such that it has a multiplicity of piezoelectric portions arranged in two generally-planar groups one either side of a median plane, so that any dimension change undergone by a portion on one side of that plane will tend to bend the whole device in the opposite direction to the same sense dimension change undergone by a portion on the other side of that plane. The simple, single layer acts as though it were a bimorph if elongate and beam-like, bending along its length, one end moving up/down, or back/forth, relative to the other but with any need for an internal, electrode.
摘要翻译：相当于双压电晶片中固有的标称中间平面的两侧（在一侧具有一个压电层，而在该平面的另一侧上的第二面）的空间分离是通过结构地成形一个简单的单个压电层（11），使得其具有多个压电部分，其布置在中间平面的任一侧上的两个大致平面的组中，使得由该平面的一侧上的部分所经历的任何尺寸变化将倾向于使整个设备沿与该平面另一侧的部分相同的感官尺寸变化的相反方向弯曲。简单的单层如同细长的和束状的，像其一样弯曲，一端向上/向下移动，或相对于另一端向前/向前弯曲，但是任何需要内部的电极。

6. 发明申请

US20060192461A1 Protective housing for a ceramic actuator 失效
标题翻译：陶瓷执行机构的保护壳
公开(公告)号：US20060192461A1
公开(公告)日：2006-08-31
申请号：US10545971
申请日：2004-02-25
申请人： Richard Topliss , James Allan , Mark Shepherd
发明人： Richard Topliss , James Allan , Mark Shepherd
IPC分类号： H01L41/053
CPC分类号： G02B7/04 , H01L41/053 , H01L41/094
摘要： A housing that protects a ceramic actuator from excessive and damaging displacement comprises a protective structure arranged to limit the motion of the actuator by contacting at least one section of said actuator between fixed and moving terminals of said actuator. A suspension system for a lens holder of a miniature camera actuated by a ceramic actuator comprises four pivotally connected link elements in form of a parallelogram connected between a housing and the lens holder.
摘要翻译：保护陶瓷致动器免受过度和损坏的位移的壳体包括保护结构，其被布置成通过使所述致动器的至少一个部分在所述致动器的固定端子和移动端子之间接触来限制致动器的运动。用于由陶瓷致动器致动的微型照相机的透镜保持器的悬挂系统包括连接在壳体和透镜保持器之间的平行四边形形式的四个枢转连接的连接元件。

7. 发明申请

US20050269906A1 Electro-active actuator 审中-公开
标题翻译：电动执行器
公开(公告)号：US20050269906A1
公开(公告)日：2005-12-08
申请号：US10535497
申请日：2003-11-11
申请人： James Allan , David Pearce , Richard Topliss
发明人： James Allan , David Pearce , Richard Topliss
IPC分类号： H01L41/09 , H01L41/33 , H01L41/39 , H01L41/43 , H04R17/00 , H01L41/04
CPC分类号： H01L41/0926 , H01L41/33 , H01L41/43 , H04R17/00 , H04R2217/01
摘要： An electro-active actuator having a bender construction comprising layers of electro-active material and electrode layers for activation of the electro-active material, the layers of electro-active material being shaped to extend continuously along at least one curved portion and at least one substantially flat portion arranged with electrical terminals for electrical connection to the electrode layers.
摘要翻译：一种电活动致动器，具有包括电活性材料层和用于激活电活性材料的电极层的弯曲结构，电活性材料层被成形为沿着至少一个弯曲部分和至少一个弯曲部分连续地延伸基本上平坦的部分布置有电连接到电极层的电端子。

8. 发明申请

US20050253487A1 Piezolelectric devices 失效
标题翻译：压电元件
公开(公告)号：US20050253487A1
公开(公告)日：2005-11-17
申请号：US10493743
申请日：2002-10-28
申请人： James Allan , Gareth McKevitt , Mark Shepherd , Richard Topliss
发明人： James Allan , Gareth McKevitt , Mark Shepherd , Richard Topliss
IPC分类号： H04R17/00 , H01L41/09 , H01L41/187 , H01L41/193 , H01L41/33 , H02N2/00 , H01L41/08
CPC分类号： H01L41/0953 , H01L41/33
摘要： A piezoelectric device comprising a continuous piezoelectric element (10) extending alternately back and forth to form a plurality of parallel, straight portions (14) arranged in a stack with intermediate linkage portions (15) at alternate ends the straight portions (14). Each straight portion (14) is constructed and arranged with electrodes (12, 13) to bend, on activation, in the stacking direction in which the straight portions (14) are stacked with opposite curvature in two halves (16, 17) of the straight portion (14) to create displacement between the ends of the straight portion (14) in the stacking direction adding in series through the stack. The continuous nature of the piezoelectric element (10) eases manufacture. Devices with two types of construction are disclosed. Firstly, the continuous piezoelectric element (10) may have a bender construction such as a bimorph bender construction. Secondly, the continuous piezoelectric element (101) may be a sheet of piezoelectric material having overlapping slits (102) extending from alternate sides to form the straight portions (103) between the slits (102), with opposed electrodes (105) arranged on each major surface of the sheet in pairs separated across, and extending along, the straight portions (103).
摘要翻译：一种压电装置，包括连续的压电元件（10），所述连续压电元件（10）交替地前后延伸以形成多个平行的直的部分（14），所述直的部分以交替的直线部分（14）的中间连接部分（15）布置成堆叠。每个直线部分（14）被构造和布置成具有电极（12,13），在激活时，沿堆叠方向弯曲，其中直线部分（14）以相反的曲率堆叠在两个半部（16,17）中直线部分（14），以在堆叠方向上在直线部分（14）的端部之间产生位移，通过堆叠串联。压电元件（10）的连续性使制造变得容易。公开了具有两种结构类型的装置。首先，连续压电元件（10）可以具有诸如双压电晶片弯曲机结构的弯曲结构。其次，所述连续压电元件（101）可以是具有从交替侧延伸的重叠狭缝（102）的压电材料片，以在狭缝（102）之间形成直线部分（103），并且每个上设置有相对电极（105）片材的主表面成对地分离并且沿直线部分（103）延伸。

9. 发明申请

US20110279916A1 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：US20110279916A1
公开(公告)日：2011-11-17
申请号：US13146462
申请日：2010-01-27
申请人： Andrew Benjamin David Brown , Richard Topliss
发明人： Andrew Benjamin David Brown , Richard Topliss
IPC分类号： G02B7/04
CPC分类号： F03G7/065 , G02B7/08 , G03B3/10
摘要： An SMA actuation apparatus comprises a camera lens element supported on a support structure by a plurality of flexures. An SMA wire at an acute angle to the movement axis and a biassing element are connected between the support structure and the movable element. A component of the force applied by the SMA wire perpendicular to the movement axis compresses the flexures causing them to apply a force to the movable element having a component along the movement axis in the same direction as the SMA wire. An end-stop limits the movement of the movable element, and the moment applied by the end-stop to the movable element about the centre of stiffness is equal to the moment applied by the SMA wire about the centre of stiffness at the point when the movable element loses contact with the end-stop on contraction of the SMA wire.
摘要翻译： SMA致动装置包括通过多个挠曲件支撑在支撑结构上的照相机镜头元件。与运动轴成锐角的SMA线和偏置元件连接在支撑结构和可移动元件之间。由SMA线垂直于移动轴施加的力的分量压缩挠曲件，使得它们沿着与SMA线相同的方向沿着运动轴线向具有部件的可移动元件施加力。止挡限制了可移动元件的移动，并且由端部止动件围绕刚度中心施加到可移动元件的力矩等于SMA线围绕刚度中心处的刚度中心施加的力矩可移动元件与SMA线的收缩端止停止接触。

10. 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。

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