-
公开(公告)号:US07224813B2
公开(公告)日:2007-05-29
申请号:US10168736
申请日:2000-12-21
申请人: Anthony Hooley , David Henry Pearce , Gareth McKevitt , Mark Richard Shepherd , James Allan , Simon Andrew Longbottom , Ursula Ruth Lenel
发明人: Anthony Hooley , David Henry Pearce , Gareth McKevitt , Mark Richard Shepherd , James Allan , Simon Andrew Longbottom , Ursula Ruth Lenel
IPC分类号: H04R25/00
CPC分类号: H04R17/00 , H01L41/094 , H04R2217/01 , Y10S310/80
摘要: A loudspeaker comprising: a support, a sound-generating element mounted to the support for vibration to generate sound; and an electro-active device coupled between the support and the sound-generating element for vibrating the sound-generating element in response to an electrical signal. The electro-active device comprises a structure extending along a minor axis which extends in a curve around a major axis parallel to the vibration direction of the sound-generating element, the structure comprising successive electro-active portions arranged with electrodes to bend around the minor axis on activation in response to application of the electrical signal to the electrodes, and coupled together such that bending of successive portions causes concomitant rotation of adjacent portions around the minor axis adding incrementally along the minor axis, which rotation causes concomitant change of the axial length of the structure along the major axis.
摘要翻译: 一种扬声器,包括:支撑件,安装到所述支撑件上以产生声音的振动的发音元件; 以及耦合在所述支撑件和所述发声元件之间的电活动装置,用于响应于电信号振动所述发声元件。 电活动装置包括沿着短轴延伸的结构,所述结构沿着平行于发声元件的振动方向的长轴的曲线延伸,该结构包括连续的电活动部分,其布置有电极以围绕次要弯曲 响应于将电信号施加到电极而被激活,并且耦合在一起,使得连续部分的弯曲导致围绕短轴的相邻部分的伴随旋转沿着短轴逐渐增加,该旋转引起轴向长度的伴随变化 的长轴上的结构。
-
公开(公告)号:US07068930B2
公开(公告)日:2006-06-27
申请号:US10480664
申请日:2002-06-19
IPC分类号: G03B3/10
CPC分类号: G02B7/023 , G03B17/00 , H04N5/2254
摘要: A camera (30) uses an electro-active device (11) to position a movable lens. The electro-active device (11) comprises an electro-active structure in the form of a continuous electro-active member (12) curving in a helix around a minor axis (13) which is in itself curved for example in a helix around a major axis (14). The continuous member (12) has a bender construction of a plurality of layers (21 and 22) including at least one layer of electro-active material so that it bends, on activation, around the minor axis (13). Concomitantly with the bending, the electro-active structure twists around the minor axis. Concomitantly with that twisting, relative displacement of the ends (16) of the device (11) occurs due to the combination of the twisting around the minor axis (13) and the fact that the minor axis (13) is curved. This structure of the electro-active device (11) is compact and provides for linear displacement, thereby making it suitable for positioning the lens of the camera (30).
摘要翻译: 相机(30)使用电动装置(11)来定位可移动透镜。 电活性器件(11)包括呈短轴弯曲的连续电活性部件(12)形式的电活性结构,短轴(13)本身例如以螺旋形弯曲 长轴(14)。 连续构件(12)具有包括至少一层电活性材料层的多个层(21和22)的弯曲结构,使得其在启动时绕短轴(13)弯曲。 伴随着弯曲,电活动结构围绕短轴扭转。 伴随着扭转,由于围绕短轴(13)的扭转和短轴(13)弯曲的事实的组合,发生装置(11)的端部(16)的相对位移。 电活动装置(11)的这种结构是紧凑的并且提供线性位移,从而使其适合于定位相机(30)的透镜。
-
公开(公告)号:US07486004B2
公开(公告)日:2009-02-03
申请号:US10493743
申请日:2002-10-28
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。
-
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。
-
公开(公告)号:US07227296B2
公开(公告)日:2007-06-05
申请号:US10545971
申请日:2004-02-25
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。
-
公开(公告)号:US20070177860A1
公开(公告)日:2007-08-02
申请号:US10593100
申请日:2005-03-14
申请人: Anthony Hooley , David Richards , James Allan , Robert Leedham , Mark Shepherd
发明人: Anthony Hooley , David Richards , James Allan , Robert Leedham , Mark Shepherd
CPC分类号: G02B7/08 , G03B13/36 , H04N5/23212
摘要: A camera comprises an image sensor arranged to generate an image signal, and a lens arrangement, which focuses an image onto the image sensor, the focus being variable in accordance with a control signal applied thereto. In the case that a piezoelectric actuator experiencing hysteresis is used to drive movement of the lens arrangement to vary the focus of the image, autofocusing is achieved by applying a control signal to the piezoelectric actuator with a value at an extreme of a predetermined range and subsequently changing the control signal monotonically across the predetermined range to determine a position at which the focus quality is at an acceptable level. Thus, this position may be returned to despite the hysteresis. In the case that an encoder is arranged to encode the image signal from the image sensor into an encoded signal compressed form, the encoder is operated in two modes in which different spatial frequency components are encoded preferentially, the amount of data in one of the modes being used as the basis for autofocusing. To assist in autofocusing the position of the lens arrangement may be determined using a light source and an optical element which is fixed to and movable with the lens arrangement, the optical element being arranged so that movement of the lens arrangement causes variation in the light incident on the image sensor.
摘要翻译: 相机包括被配置为产生图像信号的图像传感器和将图像聚焦到图像传感器上的透镜装置,所述焦点可根据施加到其上的控制信号而变化。 在使用经历滞后的压电致动器来驱动透镜装置的移动以改变图像的焦点的情况下,通过将控制信号施加到具有预定范围的极端处的值的压电致动器来实现自动聚焦 在预定范围内单调地改变控制信号,以确定聚焦质量处于可接受水平的位置。 因此,尽管有迟滞,仍可能返回这个位置。 在编码器被配置为将来自图像传感器的图像信号编码成编码信号压缩形式的情况下,编码器以两种模式操作,其中不同的空间频率分量被优先编码,在一种模式中的数据量 被用作自动对焦的基础。 为了帮助自动对焦,可以使用光源和固定到透镜装置并可移动的光学元件来确定透镜装置的位置,光学元件布置成使得透镜装置的移动导致光入射的变化 在图像传感器上。
-
公开(公告)号:US4130498A
公开(公告)日:1978-12-19
申请号:US723118
申请日:1976-09-14
申请人: Frank Lee , James Allan , Charles Fearnley
发明人: Frank Lee , James Allan , Charles Fearnley
CPC分类号: C11D3/37
摘要: There are provided detergent compositions with improved flow characteristics which contain a highly-dispersed solid water-insoluble organic polymer, e.g. polycondensed aminoplasts such as urea-formaldehyde or melamine-formaldehyde polycondensation products as well as vinyl polymers such as polyacrylpolymers. In particular the detergent compositions comprise(a) 0 to 50% of an non-ionic synthetic surfactant(b) 50 to 80% of a builder(c) 0 to 25% of an anionic surfactant(d) 0.01 to 2.5% of the highly dispersed polymer,With the proviso that at least 5% of either a non-ionic or an anionic surfactant is present in the composition, the % being based on the weight of total finished detergent.
摘要翻译: 提供了具有改善的流动特性的洗涤剂组合物,其含有高度分散的固体水不溶性有机聚合物,例如, 缩聚氨基塑料如脲甲醛或三聚氰胺 - 甲醛缩聚产物以及乙烯基聚合物如聚丙烯酸聚合物。 特别地,洗涤剂组合物包含(A)0至50%的非离子合成表面活性剂(B)50至80%的建筑物(C)0至25%的阴离子表面活性剂(D)0.01至2.5% 高分散聚合物,其中至少5%的非离子型或阴离子表面活性剂存在于组合物中,其百分比基于总完成洗涤剂的重量。
-
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。
-
公开(公告)号:US20060096462A1
公开(公告)日:2006-05-11
申请号:US10984151
申请日:2004-11-09
申请人: James Allan
发明人: James Allan
IPC分类号: A23L1/00
CPC分类号: B65D85/804 , A23L2/395 , A23L27/70 , A23P10/20
摘要: A disposable cup has a floor to which there is affixed a cake of water-soluble flavoursome material to dissolve when water is added to the cup.
摘要翻译: 一次性杯具有地板,当将水添加到杯中时,该地板上附有水溶性香料物质的饼以溶解。
-
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
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。
-
-
-
-
-
-
-
-
-