WO2008041171A3 - Actuator assembly and opto-mechanical device comprising an actuator assembly - Google Patents

Actuator assembly and opto-mechanical device comprising an actuator assembly Download PDF

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Publication number
WO2008041171A3
WO2008041171A3 PCT/IB2007/053977 IB2007053977W WO2008041171A3 WO 2008041171 A3 WO2008041171 A3 WO 2008041171A3 IB 2007053977 W IB2007053977 W IB 2007053977W WO 2008041171 A3 WO2008041171 A3 WO 2008041171A3
Authority
WO
WIPO (PCT)
Prior art keywords
actuator assembly
guide
opto
mechanical device
magnetized zone
Prior art date
Application number
PCT/IB2007/053977
Other languages
French (fr)
Other versions
WO2008041171A2 (en
Inventor
Johan F Lurquin
Robby F Maes
Johannes F M Willemse
Original Assignee
Koninkl Philips Electronics Nv
Johan F Lurquin
Robby F Maes
Johannes F M Willemse
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 Koninkl Philips Electronics Nv, Johan F Lurquin, Robby F Maes, Johannes F M Willemse filed Critical Koninkl Philips Electronics Nv
Publication of WO2008041171A2 publication Critical patent/WO2008041171A2/en
Publication of WO2008041171A3 publication Critical patent/WO2008041171A3/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/02—Focusing arrangements of general interest for cameras, projectors or printers moving lens along baseboard
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B5/02—Lateral adjustment of lens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/066—Electromagnets with movable winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Micromachines (AREA)

Abstract

An actuator assembly (100,200,300,400,500) comprises a first part (2), and a second part (3), which comprises a guide (5,6,58,59) for guiding motion of the first part (2) relative to the second part (3). The actuator assembly (100,200,300,400,500) further comprises an electro -mechanical unit (11,17,47,57) for generating a driving force between the first part (2) and the second part (3) along the guide (5,6,58,59) in response to a driving signal, and at least one pair of permanent magnets (20,21,30,31,40,50) attached to one of the first and second parts, and which comprises a first magnetized zone (12,41,51) and a second magnetized zone (13,42,52), which are positioned in a line, for providing a force transverse to the guide (5,6,58,59), acting to hold at least one surface part of the first part (2) against a surface of the guide (5,6,58,59). The respective components of magnetization of the first and the second magnetized zone (12,13,41,42,51,52) of the at least one pair of permanent magnets (20,21,30,31,40,50) parallel to the line are oriented in opposite directions.
PCT/IB2007/053977 2006-10-06 2007-10-01 Actuator assembly and opto-mechanical device comprising an actuator assembly WO2008041171A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06121877.2 2006-10-06
EP06121877 2006-10-06

Publications (2)

Publication Number Publication Date
WO2008041171A2 WO2008041171A2 (en) 2008-04-10
WO2008041171A3 true WO2008041171A3 (en) 2008-08-14

Family

ID=39268871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/053977 WO2008041171A2 (en) 2006-10-06 2007-10-01 Actuator assembly and opto-mechanical device comprising an actuator assembly

Country Status (1)

Country Link
WO (1) WO2008041171A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008016518U1 (en) * 2008-12-12 2009-02-26 Bürkert Werke GmbH & Co.KG Electromagnetic actuator
DE102013110029C5 (en) 2013-09-12 2017-03-16 Bürkert Werke GmbH Electrodynamic actuator
US10303041B2 (en) * 2016-08-10 2019-05-28 Apple Inc. Closed loop position control for camera actuator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459889A1 (en) * 1990-05-28 1991-12-04 Sony Corporation Voice coil type actuator
US20020030422A1 (en) * 2000-09-14 2002-03-14 Minolta Co., Ltd. Drive mechanism employing electromechanical transducer
US20040234258A1 (en) * 2003-04-15 2004-11-25 Tomoya Takei Lens driving device and imaging device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459889A1 (en) * 1990-05-28 1991-12-04 Sony Corporation Voice coil type actuator
US20020030422A1 (en) * 2000-09-14 2002-03-14 Minolta Co., Ltd. Drive mechanism employing electromechanical transducer
US20040234258A1 (en) * 2003-04-15 2004-11-25 Tomoya Takei Lens driving device and imaging device

Also Published As

Publication number Publication date
WO2008041171A2 (en) 2008-04-10

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