WO2006059098A1 - Systeme de suspension - Google Patents

Systeme de suspension Download PDF

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Publication number
WO2006059098A1
WO2006059098A1 PCT/GB2005/004590 GB2005004590W WO2006059098A1 WO 2006059098 A1 WO2006059098 A1 WO 2006059098A1 GB 2005004590 W GB2005004590 W GB 2005004590W WO 2006059098 A1 WO2006059098 A1 WO 2006059098A1
Authority
WO
WIPO (PCT)
Prior art keywords
suspension system
resilient member
movement axis
resilient
strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2005/004590
Other languages
English (en)
Inventor
James Allan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
1 Ltd
Original Assignee
1 Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 1 Ltd filed Critical 1 Ltd
Priority to GB0712169A priority Critical patent/GB2436488A/en
Publication of WO2006059098A1 publication Critical patent/WO2006059098A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/025—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by having a particular shape
    • F16F1/027—Planar, e.g. in sheet form; leaf springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18—Leaf springs
    • F16F1/26—Attachments or mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/073—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only leaf springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
    • F16F3/023—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of leaf springs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism

Definitions

  • This invention pertains to suspension systems for suspending an object to allow movement along a movement axis. It is particularly suited to a suspension system for use in combination with an electro-active actuator for moving the object. It is also suited for suspending an object which is a lens, for example as used in a camera system which may be employed in a mobile telephone or a mobile digital data processing and/or transmitting device.
  • WO-03/048831 describes a suspension system for the lens of a miniature camera, as used for example in a mobile phone.
  • the suspension system described therein comprises two resilient members referred to as sine flexures.
  • Each resilient member is a straight thin strip of elastic material, such as metal or plastic, supported at its ends to be held in a flexed state with portions on each side of a central point having opposite curvature so that the shape approximates to a sine wave.
  • the central point of such a flexure has very low (or even negative) stiffness in the direction normal to the strip.
  • the lens is suspended from the central point of the flexures such that there is very little resistance to movement of the lens in the normal direction. Movements in other directions however are hindered.
  • the suspension system therefore provides a near-frictionless suspension for the lens, allowing travel of the lens along the optic axis, as required for example in focussing and zooming.
  • Such lens movement is generally effected by some form of actuator, for example an electro-active actuator.
  • actuator for example an electro-active actuator.
  • a particularly advantageous form of electro-active actuator is the coiled piezoelectric actuator described in WO-01/47041and WO-02/103451. The force-displacement characteristics of such an actuator make it suitable for driving lens travel in a miniature camera, and its circular shape allows it to fit neatly around the lens of the camera.
  • the displacement direction of such a coiled actuator is approximately, but not perfectly, normal to the plane of the circle, which normal is approximately parallel to the optical axis of the lens system. Any off-axis movement of the actuator tends to cause sideways movement of the lens leading to misalignment. Such off-axis movement can be hindered by the provision of a suspension which is stiff in off-axis directions, while allowing free movement in the axial direction.
  • the suspension system described above comprising two pairs of resilient members provides considerable stiffness in sideways (off-axis) directions.
  • the straight resilient members of the known suspension system do not fit neatly around the lens.
  • the flexures are straight while the lens and actuator are circular.
  • the footprint of the camera module as a whole is therefore necessarily rectangular.
  • space is at a premium and compactness of individual components and modules is of prime importance.
  • a suspension system for suspending an object to allow movement of the object along a movement axis
  • the suspension system comprising: at least one resilient member which is arranged to suspend the object from a central point of the resilient member, a support structure holding the resilient member in a flexed state with the portions of the resilient member on each side of the central point having opposite curvature as viewed from a direction perpendicular to the movement axis, the resilient member being curved as viewed from a direction along the movement axis.
  • the resilient member is held in a similar curved shape to the resilient member of the known type of suspension system disclosed in WO-03/048831 discussed above.
  • the resilient member is also curved as viewed from a direction along the movement axis.
  • the present invention is thus based on an appreciation that despite such a curved shape, the resilient member still displays similar properties to the known straight resilient members in the type of suspension system disclosed in WO-03/048831.
  • the central point of the resilient member is a critical configuration point close to which the stiffness in the movement direction approaches zero.
  • an object suspended at the central point can be moved axially with very little resistance.
  • the suspension system resists movement in sideways directions.
  • the benefit of providing a curved resilient member is that the shape of the resilient member may be selected to curve around the object to be suspended. For example in the case of an object which is generally circular, as for example a lens, the curve may be an arc of a circle.
  • the resilient member can be made from a variety of materials, for example metal or a plastic material.
  • the elastic structure is preferably a resilient strip, the width of the strip perpendicular to the movement axis being greater than the thickness of the strip.
  • the ratio of the width of the strip perpendicular to the movement axis to the thickness of the strip is on average at least 5, more preferably greater than 10 or even 20. Such values for this ratio provide desirable values for the relative degrees of stiffness provided by the suspension system in different directions, as discussed above.
  • the suspension system comprises two resilient members each curved, as viewed from the direction along the movement axis, around a common axis.
  • the two resilient members may be connected to each other at each end and integrally formed.
  • the curve described by the integrally formed pair of resilient members may be a circle, or an approximation to a circle.
  • Fig. 1 is a perspective view of a microcamera assembly incorporating a known -A- suspension system
  • Figs. 2A and 2B are plan and side views of a resilient member in the suspension system of Fig. 1, in an unassembled state;
  • Figs. 3 A and 3B are plan and side views of the resilient member of Figs. 2A and 2B, in an assembled state;
  • Figs. 4A and 4B are plan and side views of a resilient member applied in a first suspension system in accordance with the present invention, in an unassembled state;
  • Figs. 5 A and 5B are plan and side views of the resilient member of Figs. 4A and 4B, in an assembled state;
  • Figs. 6A and 6B are plan and side views of two integrally formed resilient members applied in a second suspension system in accordance with the present invention, in an unassembled state;
  • Figs. 7 A and 7B are plan and side views of the two integrally formed resilient members of Figs. 6A and 6B, in an assembled state
  • Figs. 8 A, 8B and 8C are plan, side and perspective views of two integrally formed resilient members applied in a modified form of the second suspension system, in an unassembled state
  • Fig. 9 is a cross-sectional view of a fixing arrangement for a resilient member.
  • Fig. 1 shows a micro-camera assembly of the type described in WO-03/048831 employing straight resilient members 12, 13 which may also be referred to as sine flexures.
  • the assembly comprises a lens barrel 11 supporting one or more lenses and suspended by a suspension system comprising two resilient members 12, 13 in a housing 14 which may take the form of a frame and which acts as a support structure.
  • a piezoelectric actuator 15 is coupled between the lens barrel 11 and the housing 14.
  • the actuator 15 is a coiled piezoelectric actuator of the type described in WO-
  • the actuator 15 drives the lens barrel 11 up and down in a movement direction 16 which is the axial direction of the lens barrel 16 along the optical axis.
  • the resilient member 12 is connected to the lens barrel 11 by a connecting piece 17 protruding sideways from the central point of the resilient member 12.
  • the ends of the resilient member 12 are fixed to the housing 14 via fixing pieces 18.
  • the second resilient member 13 is connected to the lens barrel and housing in a similar manner.
  • the pair of resilient members 12,13 together with their connecting and fixing pieces 17, 18 are integrally formed to form a continuous single structure. Such a structure can be readily made by punching or cutting the appropriate shape from a flat sheet of material.
  • the structure does not remain flat, but rather the constraints applied to the fixing pieces 18 by the housing 14 holds the resilient members 12, 13 in a flexed state so that they each adopt a curved shape having opposite curvature on each side of their central point as viewed from the side.
  • Figs. 2 A and 2B show schematic plan and side views of the structure formed by the resilient members 12, 13 in the suspension system of Fig. 1 in an unassembled state. Connecting pieces 17 and fixing pieces 18 are also shown. In this case the resilient members 12, 13 are not flexed.
  • Figs. 3 A and 3B show similar views of the resilient members 12, 13 in an assembled state. In this case the resilient members 12, 13 are held by the housing 14 in the flexed state. The curved shape having opposite curvature on each side of the central point is best seen in Fig. 3B. As shown, the fixing pieces 18 of the resilient members 12, 13 engage with angled slots 21 in the housing 14. Embodiments of the present invention will now be described. In each case, the suspension system of the assembly of Fig.
  • Figs. 4A and 4B show schematic plan and side views of a first such suspension system in the unassembled state.
  • Figs. 5A and 5B show schematic plan and side views of the first suspension system in the unassembled state.
  • the first suspension system comprises a resilient member 32 in the form of a thin strip of elastic material such as a metal or a plastics material.
  • the resilient member 32 is curved in plan view, that is when viewed from a direction along the movement axis 16 as shown in Figs. 4A and 5 A.
  • the resilient member 32 is flat in the unassembled state shown in Fig. 4B, when assembled onto the housing 14 (shown schematically only) the resilient member 32 is held by the housing 14 in a flexed state.
  • the resilient member 32 adopts a curved shape having opposite curvature on each side of its central point 34 in side view, that is from a direction perpendicular to the movement direction 16 as shown in Fig. 5B.
  • the resilient member In plan view in the assembled state, the resilient member extends around an arc o( a circle as shown in Fig. 5A.
  • FIGs. 6A and 6B show schematic plan and side views of a second suspension system in the unassembled state.
  • Figs. 7A and 7B show schematic plan and side views of the second suspension system in the unassembled state.
  • the second suspension system comprises a circular flexure 31, itself comprising two curved resilient members 41, 42 which are integrally formed so that they are joined end to end. In the unassembled state, the circular flexure 31 is roughly elliptical or oval in plan view as shown in Fig. 6 A and flat in side view as shown in Fig. 6B.
  • the circular flexure 31 When assembled onto the housing 14, the circular flexure 31 is held by the housing in a flexed state having an approximately circular shape in plan view as shown in Fig. 7A and each resilient member 41, 42 having opposite curvature on each side of their central points in side view as shown in Fig. 5B.
  • the circular flexure 31 is fixed into the housing 14 at two diametrically opposed locations, which locations are at right angles to two connecting pieces 17 which serve to connect to the lens barrel 11.
  • the circular flexure 31 engages with appropriately shaped slots 18 in the housing 14.
  • the dimensions of the circular flexure 31 are chosen to fit neatly around the lens barrel 11 with sufficient clearance to allow the lens barrel 11 to move up and down within the inner circumference of the circular flexure 31.
  • the circular flexure 31 When used in conjunction with the piezoelectric actuator 15 as shown in Fig. 1, the circular flexure 31 has a similar radial extent as the actuator 15, being arranged in line with the actuator 15 as viewed along the movement direction 16.. It therefore adds a minimal amount or nothing to the radial extent of the assembly as a whole..
  • Figs. 8A, 8B and 8C show in plan view side view and perspective view a modified form of the second suspension system shown in Figs. 6A and 6B and in Figs. 7 A and 7B.
  • the modifications are as follows.
  • each resilient member 41, 42 is a connecting piece 45 which connects to a collar 46.
  • the collar 46 is shaped to fit on to a corresponding locating portion of the lens barrel 11.
  • the two resilient members 41, 42 of the circular flexure 31 are widened in the region where the two resilient members 41, 42 are fixed together to form fixing pieces 43, 44, shaped to facilitate fixing into the housing 14.
  • each resilient member 41,42 decreases from the central point towards the fixing pieces 43, 44. This reduction in width near the fixing pieces 43, 44 lowers the stiffness locally and allows the circular flexure 31 to more readily assume the desired shape, shown in side view in Fig. 8B.
  • FIG. 8C shows similar features to Fig. 8 A and illustrates the non-flat nature of the resilient members 41, 42, the portions to the left of the connecting pieces 45 curving downwards below the level of the collar 46 and the portions to the right curving upwards.
  • the fixing pieces 43,44, the connecting pieces 45 and the collar 46 is formed integrally, for example by cutting from a flat sheet of elastic material such as metal or a plastics material.
  • the connecting pieces 45 are permanently twisted or bent with respect to the resilient members 41,42 so as to compensate for the inclination of the members at their mid point. The collar 46 is thus held approximately horizontally thereby facilitating the mounting and alignment of the moving object.
  • the circular flexures 31 are preferably used in pairs, one at each end of the lens barrel 11 , to provide further resistance to twisting of the lens barrel 11.
  • the circular flexure 31 is designed to be used in a micro- camera assembly incorporating a lens barrel 11 with outer diameter 11 mm.
  • the circular flexure 31 has dimensions of 15 mm outer diameter, average width about 1 mm and thickness 25 microns. It is made from hard rolled stainless steel, grade 302.
  • the circular flexure 31 has a considerably smaller footprint. This space saving is readily calculated from the difference in area of a square and a circle. The area saving is about 21%. This translates to a corresponding 21% saving in the volume of the micro-camera assembly as a whole. Given the tight space constraints within portable electronic devices such as mobile telephones, this is a significant benefit.
  • the circular flexure 31 this small and this thin can be made in a number of ways, but most conveniently by cutting it out from a sheet of material. For example, the circular flexure 31 can be stamped out using a die, or cut out using a singular cutting tool such as a laser, or most preferably etched out photochemically.
  • Photochemical etching is particularly suited to making large numbers of devices all at once from a single large sheet of material; with one single printing the resist pattern .defines a multiplicity of springs spaced across the surface of the sheet, and the etching realises them all at the same time.
  • the suspension systems described above have very little resistance to movement in the movement direction 16, thereby allowing the lens barrel 11 to move freely back and forth along the optic axis.
  • they have very considerable stiffness in the sideways directions (perpendicular to the movement direction 16) which helps to prevent any off-axis movement of the lens barrel 11.
  • the resilient members 31 and 32 take the form of a strip having a width perpendicular to the movement axis being greater than the thickness of the strip.
  • the ratio of the width of the strip perpendicular to the movement axis 16 to the thickness of the strip on average is preferably at least 5, more preferably greater than 10 or even 20. in the form of a thin strip of elastic material such as a metal or a plastics material.
  • Fig. 9 shows an alternative method of fixing the circular flexure 31 into the housing 14 which is easier to implement than the slot in the housing 14 shown in Fig. 7B. In this fixing method, the housing 14 is made in two parts 51,52, to be stacked vertically one above the other.
  • the circular flexure 31 is clamped between the two parts and fixed in place by a pin 53 which extends vertically through the upper housing 51, through a hole in the circular flexure 31 and vertically through the lower housing 52.
  • the ends of the housing parts 51,52 which are in contact with the circular flexure 31 are shaped appropriately to receive the circular flexure 31 and apply a clamping force when pinned.
  • Such a fixing mechanism is also appropriate when a pair of circular flexures 31 is used, one at each end of the lens barrel 11.
  • the housing 14 is made in three parts, and the upper circular flexure 31 is clamped between the upper and central part while the lower circular flexure 31 is clamped between the central and lower part.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Lens Barrels (AREA)

Abstract

Le système de suspension décrit suspend un objet en permettant à l’objet de se déplacer le long d’un axe de déplacement. Le système de suspension comprend deux éléments élastiques suspendus chacun à l’objet depuis un point central. Les éléments élastiques sont intégralement formés et incurvés autour de l’objet tel que visualisé dans la direction longeant l'axe de déplacement. Une structure de support maintient les éléments élastiques dans un état fléchi avec les parties des éléments élastiques de chaque côté de leurs points centraux ayant une courbure opposée dans une direction perpendiculaire à l’axe de déplacement.
PCT/GB2005/004590 2004-12-01 2005-12-01 Systeme de suspension Ceased WO2006059098A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0712169A GB2436488A (en) 2004-12-01 2005-12-01 Suspension system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0426331.5 2004-12-01
GBGB0426331.5A GB0426331D0 (en) 2004-12-01 2004-12-01 Suspension system

Publications (1)

Publication Number Publication Date
WO2006059098A1 true WO2006059098A1 (fr) 2006-06-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/004590 Ceased WO2006059098A1 (fr) 2004-12-01 2005-12-01 Systeme de suspension

Country Status (2)

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GB (2) GB0426331D0 (fr)
WO (1) WO2006059098A1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2372428A1 (fr) 2006-03-30 2011-10-05 Cambridge Mechatronics Limited Appareil d'actionnement de lentille de caméra
US8073320B2 (en) 2007-02-12 2011-12-06 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US8441749B2 (en) 2009-02-09 2013-05-14 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US8446475B2 (en) 2007-02-12 2013-05-21 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
DE102011088583A1 (de) * 2011-12-14 2013-06-20 Behr Gmbh & Co. Kg Entkopplungsvorrichtung
US8570384B2 (en) 2009-02-09 2013-10-29 Cambridge Mechatronics Limited Camera apparatus having an SMA actuator system
US8588598B2 (en) 2008-07-30 2013-11-19 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US8593568B2 (en) 2007-10-30 2013-11-26 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US8848064B2 (en) 2008-09-12 2014-09-30 Cambridge Mechatronics Limited Optical image stabilization comprising shape memory alloy actuators
US8866918B2 (en) 2010-09-22 2014-10-21 Cambridge Mechatronics Limited Optical image stabilisation
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US9137429B2 (en) 2010-08-09 2015-09-15 Cambridge Mechatronics Limited Camera apparatus
US9227000B2 (en) 2006-09-28 2016-01-05 Smith & Nephew, Inc. Portable wound therapy system
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9684183B2 (en) 2012-11-14 2017-06-20 Cambridge Mechatronics Limited Control of an SMA actuation apparatus
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy
US20200220483A1 (en) * 2019-01-04 2020-07-09 Aktiebolaget Skf Suspension assembly
US11027051B2 (en) 2010-09-20 2021-06-08 Smith & Nephew Plc Pressure control apparatus
US11764607B2 (en) 2019-01-04 2023-09-19 Aktiebolaget Skf Suspension spring
US12029549B2 (en) 2007-12-06 2024-07-09 Smith & Nephew Plc Apparatus and method for wound volume measurement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003048831A2 (fr) * 2001-11-29 2003-06-12 1... Limited Systeme de montage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003048831A2 (fr) * 2001-11-29 2003-06-12 1... Limited Systeme de montage

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2372428A1 (fr) 2006-03-30 2011-10-05 Cambridge Mechatronics Limited Appareil d'actionnement de lentille de caméra
US8350959B2 (en) 2006-03-30 2013-01-08 1 . . . Limited Camera lens actuation apparatus
US10130526B2 (en) 2006-09-28 2018-11-20 Smith & Nephew, Inc. Portable wound therapy system
US11141325B2 (en) 2006-09-28 2021-10-12 Smith & Nephew, Inc. Portable wound therapy system
US9227000B2 (en) 2006-09-28 2016-01-05 Smith & Nephew, Inc. Portable wound therapy system
US12115302B2 (en) 2006-09-28 2024-10-15 Smith & Nephew, Inc. Portable wound therapy system
US9642955B2 (en) 2006-09-28 2017-05-09 Smith & Nephew, Inc. Portable wound therapy system
US8073320B2 (en) 2007-02-12 2011-12-06 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US8446475B2 (en) 2007-02-12 2013-05-21 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US8593568B2 (en) 2007-10-30 2013-11-26 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US12029549B2 (en) 2007-12-06 2024-07-09 Smith & Nephew Plc Apparatus and method for wound volume measurement
US8588598B2 (en) 2008-07-30 2013-11-19 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US8848064B2 (en) 2008-09-12 2014-09-30 Cambridge Mechatronics Limited Optical image stabilization comprising shape memory alloy actuators
US8570384B2 (en) 2009-02-09 2013-10-29 Cambridge Mechatronics Limited Camera apparatus having an SMA actuator system
US8441749B2 (en) 2009-02-09 2013-05-14 Cambridge Mechatronics Limited Shape memory alloy actuation apparatus
US9137429B2 (en) 2010-08-09 2015-09-15 Cambridge Mechatronics Limited Camera apparatus
US11623039B2 (en) 2010-09-20 2023-04-11 Smith & Nephew Plc Systems and methods for controlling operation of a reduced pressure therapy system
US11534540B2 (en) 2010-09-20 2022-12-27 Smith & Nephew Plc Pressure control apparatus
US11027051B2 (en) 2010-09-20 2021-06-08 Smith & Nephew Plc Pressure control apparatus
US12226611B2 (en) 2010-09-20 2025-02-18 Smith & Nephew Plc Pressure control apparatus
US8866918B2 (en) 2010-09-22 2014-10-21 Cambridge Mechatronics Limited Optical image stabilisation
US11253639B2 (en) 2011-11-02 2022-02-22 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US10143783B2 (en) 2011-11-02 2018-12-04 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US12582762B2 (en) 2011-11-02 2026-03-24 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US11648342B2 (en) 2011-11-02 2023-05-16 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
DE102011088583A1 (de) * 2011-12-14 2013-06-20 Behr Gmbh & Co. Kg Entkopplungsvorrichtung
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9545465B2 (en) 2012-05-15 2017-01-17 Smith & Newphew Plc Negative pressure wound therapy apparatus
US10299964B2 (en) 2012-05-15 2019-05-28 Smith & Nephew Plc Negative pressure wound therapy apparatus
US12116991B2 (en) 2012-05-15 2024-10-15 Smith & Nephew Plc Negative pressure wound therapy apparatus
US10702418B2 (en) 2012-05-15 2020-07-07 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9684183B2 (en) 2012-11-14 2017-06-20 Cambridge Mechatronics Limited Control of an SMA actuation apparatus
US10780202B2 (en) 2014-12-22 2020-09-22 Smith & Nephew Plc Noise reduction for negative pressure wound therapy apparatuses
US11654228B2 (en) 2014-12-22 2023-05-23 Smith & Nephew Plc Status indication for negative pressure wound therapy
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy
US10737002B2 (en) 2014-12-22 2020-08-11 Smith & Nephew Plc Pressure sampling systems and methods for negative pressure wound therapy
US10973965B2 (en) 2014-12-22 2021-04-13 Smith & Nephew Plc Systems and methods of calibrating operating parameters of negative pressure wound therapy apparatuses
US11736041B2 (en) 2019-01-04 2023-08-22 Aktiebolaget Skf Suspension assembly
US11764607B2 (en) 2019-01-04 2023-09-19 Aktiebolaget Skf Suspension spring
CN111412348A (zh) * 2019-01-04 2020-07-14 斯凯孚公司 悬架组件
US20200220483A1 (en) * 2019-01-04 2020-07-09 Aktiebolaget Skf Suspension assembly

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GB0426331D0 (en) 2005-01-05
GB2436488A (en) 2007-09-26

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