GB2416426A - Electro-active device - Google Patents

Electro-active device Download PDF

Info

Publication number
GB2416426A
GB2416426A GB0522722A GB0522722A GB2416426A GB 2416426 A GB2416426 A GB 2416426A GB 0522722 A GB0522722 A GB 0522722A GB 0522722 A GB0522722 A GB 0522722A GB 2416426 A GB2416426 A GB 2416426A
Authority
GB
United Kingdom
Prior art keywords
electro
benders
active device
activation
distal end
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.)
Granted
Application number
GB0522722A
Other versions
GB2416426B (en
GB0522722D0 (en
Inventor
Anthony Hooley
Ursula Ruth Lenel
David Henry Pearce
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
Publication of GB0522722D0 publication Critical patent/GB0522722D0/en
Publication of GB2416426A publication Critical patent/GB2416426A/en
Application granted granted Critical
Publication of GB2416426B publication Critical patent/GB2416426B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H01L41/0926—
    • H01L41/083—
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Secondary Cells (AREA)
  • Laminated Bodies (AREA)
  • Discharge By Other Means (AREA)

Abstract

A device (20) comprises a plurality of electro-active benders (21), each having two sections arranged to bend, on activation, with opposite curvature in the two sections, in an arrangement in which the displacements of individual benders (21), on activation, contribute to an overall, relative displacement between a proximal end and a distal end of the device (20). The mass of benders (21) in the arrangement decreases from the proximal end to the distal end of said device (20).

Description

GB 2416426 A continuation (72) Inventor(s): Anthony Hooley Ursula Ruth
Lenel David Henry Pearce (74) Agent and/or Address for Service: 1... Limited St John's Innovation Centre, Cowley Road, CAMBRIDGE, CB4 OWS, United Kingdom
GB0522722A 2003-04-16 2004-04-13 Electro-active device Expired - Fee Related GB2416426B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0308810.1A GB0308810D0 (en) 2003-04-16 2003-04-16 Recurved electro-active actuators
PCT/GB2004/001600 WO2004095596A1 (en) 2003-04-16 2004-04-13 Electro-active device

Publications (3)

Publication Number Publication Date
GB0522722D0 GB0522722D0 (en) 2005-12-14
GB2416426A true GB2416426A (en) 2006-01-25
GB2416426B GB2416426B (en) 2007-02-28

Family

ID=9956901

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0308810.1A Ceased GB0308810D0 (en) 2003-04-16 2003-04-16 Recurved electro-active actuators
GB0522722A Expired - Fee Related GB2416426B (en) 2003-04-16 2004-04-13 Electro-active device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0308810.1A Ceased GB0308810D0 (en) 2003-04-16 2003-04-16 Recurved electro-active actuators

Country Status (3)

Country Link
GB (2) GB0308810D0 (en)
TW (1) TW200524189A (en)
WO (1) WO2004095596A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100555696C (en) 2005-02-15 2009-10-28 诺基亚公司 Be used for little mobile piezoelectric actuator component
DE102005063652B3 (en) 2005-06-09 2020-06-04 Tdk Electronics Ag Piezoelectric multilayer component
DE102005026717B4 (en) * 2005-06-09 2016-09-15 Epcos Ag Piezoelectric multilayer component
GB2433174A (en) * 2005-12-07 2007-06-13 New Transducers Ltd Exciter for a bending wave distributed mode loudspeaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472342A2 (en) * 1990-08-16 1992-02-26 Canon Kabushiki Kaisha Micro-displacement type information detection probe device and microscope and information processing device by use thereof
GB2375884A (en) * 2001-05-23 2002-11-27 1 Ltd Helical electro-active devices
GB2376592A (en) * 2001-06-15 2002-12-18 1 Ltd Combined camera-loudspeaker for a mobile phone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472342A2 (en) * 1990-08-16 1992-02-26 Canon Kabushiki Kaisha Micro-displacement type information detection probe device and microscope and information processing device by use thereof
GB2375884A (en) * 2001-05-23 2002-11-27 1 Ltd Helical electro-active devices
GB2376592A (en) * 2001-06-15 2002-12-18 1 Ltd Combined camera-loudspeaker for a mobile phone

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Shock and Vibration Digest, Vol. 33, No. 4, July 2001, pages 269-280 *

Also Published As

Publication number Publication date
TW200524189A (en) 2005-07-16
GB0308810D0 (en) 2003-05-21
GB2416426B (en) 2007-02-28
GB0522722D0 (en) 2005-12-14
WO2004095596A1 (en) 2004-11-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140413