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41. 发明申请

WO2021255469A1 ACTUATOR 审中-公开
公开(公告)号：WO2021255469A1
公开(公告)日：2021-12-23
申请号：PCT/GB2021/051549
申请日：2021-06-17
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： BROWN, Andrew Benjamin Simpson , HOWARTH, James , LANGHORNE, Robert , KIST, René
IPC分类号： F03G7/06 , G02B7/00 , G02B7/02 , G02B7/04 , G03B3/10 , G03B5/00 , F03G7/06143 , F03G7/067 , G02B7/08 , G03B2205/0007 , G03B2205/0046 , G03B2205/0076 , G03B30/00
摘要： A shape memory alloy (SMA) actuator comprising: a support structure (10); a moveable part (20) movable relative to the support structure; plural SMA components (30) connecting the support structure and the movable part, the SMA components are operable to controllably change the position and/or orientation of the moveable part in two or more degrees of freedom; a controller (12) for controlling the operation of the SMA components in a first operating mode during normal operation and a second operating mode in response to an event; and means configured to, during the second operating mode, maintain at least partial control of the moveable part with a subset of the plural SMA components.

42. 发明申请

WO2020008216A1 ROLLING PULLEYS 审中-公开
公开(公告)号：WO2020008216A1
公开(公告)日：2020-01-09
申请号：PCT/GB2019/051920
申请日：2019-07-05
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： HOWARTH, James
IPC分类号： F03G7/06
摘要： Broadly speaking, embodiments of the present techniques provide techniques for increasing the stroke of an actuator comprising shape memory alloy (SMA) actuator wire.

43. 发明申请

WO2019243842A1 SHAPE MEMORY ALLOY ACTUATION APPARATUS 审中-公开
公开(公告)号：WO2019243842A1
公开(公告)日：2019-12-26
申请号：PCT/GB2019/051762
申请日：2019-06-21
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： BROWN, Andrew , FLOURIS, Andreas , HOWARTH, James
IPC分类号： F03G7/06 , G02B3/10 , G02B7/00 , G02B7/08
摘要： An SMA actuation apparatus (1) comprises a support structure (2) and a movable element (3) supported thereon by a suspension system (8, 10) that supports the movable element on the support structure and guides movement of the movable element along a movement axis. Two closely spaced lengths of SMA wire (4) that are close to parallel and inclined at the same acute angle with respect to a plane normal to the movement axis are connected to the support structure and to the movable element so as to apply respective forces to the movable element with respective components parallel to the movement axis that are in opposite directions. The two lengths of shape memory alloy wire apply a couple to the movable element perpendicular to the movement axis and the suspension system includes a pair of flexures or bearings that resist the resultant couple applied to the movable element by the lengths of SMA wire.

44. 发明申请

WO2019193337A1 APPARATUS AND METHODS FOR 3D SENSING 审中-公开
公开(公告)号：WO2019193337A1
公开(公告)日：2019-10-10
申请号：PCT/GB2019/050965
申请日：2019-04-04
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： RICHARDS, David Charles William , CARR, Joshua , HOWARTH, James
IPC分类号： G01B11/25
摘要： Broadly speaking, embodiments of the present techniques provide apparatuses, systems and methods for generating a three-dimensional (3D) representation of a scene or for 3D sensing, by using shape memory alloy (SMA) actuator wires to control the position or orientation of one or more components of an apparatus used for generating the 3D representation/performing 3D sensing.

45. 发明申请

WO2019162708A1 HAPTIC BUTTON WITH SMA 审中-公开
公开(公告)号：WO2019162708A1
公开(公告)日：2019-08-29
申请号：PCT/GB2019/050535
申请日：2019-02-26
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： OOI, David Kuan Wei , VAN WYK, Peter , CARR, Joshua , POWELL, Thomas James , SCHOLZ, Marc-Sebastian , FLOURIS, Andreas , BROWN, Andrew Benjamin Simpson , BUNTING, Stephen Matthew , WEBBER, Dominic George , HOWARTH, James
IPC分类号： G06F3/01 , G06F3/02 , G06F3/041
摘要： Broadly speaking, embodiments of the present techniques provide haptic button assemblies in which the haptic button has a low profile while still providing a satisfying tactile response or sensation to a user. Advantageously, the haptic button assemblies may have a profile that, for example, enables the assembly to be incorporated into the free space along an edge of a portable computing device. The haptic assemblies may, for example, be arranged to move the button perpendicularly with respect to the edge of the device.

46. 发明申请

WO2019086854A3 CONTINUOUS WIRING OF SHAPE MEMORY ALLOY ACTUATORS 审中-公开
公开(公告)号：WO2019086854A3
公开(公告)日：2019-05-09
申请号：PCT/GB2018/053134
申请日：2018-10-30
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： FARMER, Geoffrey , HOWARTH, James , REDDALL, Nicholas Henry
IPC分类号： F03G7/06
摘要： Embodiments of the present techniques provide methods for manufacturing large volumes of shape memory alloy (SMA) actuator assemblies, which may also advantageously simplify and/or speed-up the process of manufacturing SMA actuator assemblies.

47. 发明申请

WO2019086854A2 CONTINUOUS WIRING OF SHAPE MEMORY ALLOY ACTUATORS 审中-公开
公开(公告)号：WO2019086854A2
公开(公告)日：2019-05-09
申请号：PCT/GB2018/053134
申请日：2018-10-30
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： FARMER, Geoffrey , HOWARTH, James , REDDALL, Nicholas Henry
摘要： Broadly speaking, embodiments of the present techniques provide methods for manufacturing large volumes of shape memory alloy (SMA) actuator assemblies, which may also advantageously simplify and/or speed-up the process of manufacturing SMA actuator assemblies.

48. 发明申请

WO2018202819A1 SMA ACTUATOR WITH POSITION SENSORS 审中-公开
公开(公告)号：WO2018202819A1
公开(公告)日：2018-11-08
申请号：PCT/EP2018/061440
申请日：2018-05-03
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： WEBBER, Dominic George , HOWARTH, James , BROWN, Andrew Benjamin Simpson , RICHARDS, David Charles William , FLOURIS, Andreas
IPC分类号： G03B3/10
摘要： Broadly speaking, embodiments of the present techniques provide apparatuses and methods for controlling the position and/or orientation of a moveable component of an actuator, using at least two shape memory alloy (SMA) actuator wires and at least one sensor for sensing position/orientation of the moveable component.

49. 发明申请

WO2018015762A1 PWM SHIELDING IN A CAMERA 审中-公开
标题翻译：相机中的PWM屏蔽
公开(公告)号：WO2018015762A1
公开(公告)日：2018-01-25
申请号：PCT/GB2017/052140
申请日：2017-07-20
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： HOWARTH, James , BROWN, Andrew Benjamin David , GOTLIBOVYCH, Igor , EDDINGTON, Robin , REDDALL, Nicholas Henry , ROGERS, Ian Edward Charles
IPC分类号： G03B13/18 , G02B7/09 , G02B7/02 , G03B3/10 , H04N5/225
摘要： A miniature camera comprises: an image sensor; an actuator which includes conductive components capable of conducting a pulse width modulation drive signal for driving the actuator; and a screening component located between (a) the conductive components of the actuator and (b) the image sensor, the screening component being electrically isolated from the actuator.
摘要翻译：微型照相机包括：图像传感器; 致动器，其包括能够传导用于驱动致动器的脉宽调制驱动信号的导电部件; 以及位于（a）致动器的导电部件和（b）图像传感器之间的屏蔽部件，屏蔽部件与致动器电隔离。

50. 发明申请

WO2017208003A1 SHAPE MEMORY ALLOY ASSEMBLY 审中-公开
标题翻译：形状记忆合金装配
公开(公告)号：WO2017208003A1
公开(公告)日：2017-12-07
申请号：PCT/GB2017/051577
申请日：2017-06-01
申请人： CAMBRIDGE MECHATRONICS LIMITED
发明人： HOWARTH, James , BROWN, Andrew Benjamin David , HUNTING, Stephen Matthew , WEBBER, Dominic George , CHOQUETTE, Julian
IPC分类号： F03G7/06 , G06F3/01
CPC分类号： F03G7/065 , A61L2400/16 , G06F3/016 , H04M2250/22
摘要： A haptic assembly comprises a chassis, a mass movably supported on the chassis; and at least one SMA actuator wire arranged, on contraction, to move the mass relative to the chassis. SMA provides actuation with a relatively large force which provides an improved haptic effect. A trigger element releases a retention element holding the mass against a resilient element loaded by the SMA. Drive signal powers may be controlled using resistance-based closed-loop control to allow shaping of the haptic waveform. Alternatively, the degree of movement may be increased by using a drive signal having sufficient power during an initial period that the mass achieves a sufficient velocity to cause the SMA actuator wire to go slack. A secondary actuator arrangement may be mounted on said mass to additionally generate vibrational movement.
摘要翻译：触觉组件包括机架，可移动地支撑在机架上的质量块; 以及至少一个SMA致动器线，其在收缩时相对于底盘移动质量块。 SMA以相对较大的力提供致动，从而提供改善的触觉效果。触发元件释放保持元件以抵靠由SMA加载的弹性元件的保持元件。驱动信号功率可以使用基于电阻的闭环控制来控制，以允许触觉波形的整形。或者，可以通过在初始阶段使用具有足够功率的驱动信号来增加运动程度，该初始阶段质量达到足够的速度以使SMA致动器线松弛。次级致动器装置可以安装在所述质量块上以另外产生振动运动。

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