TW200725599A - Compact asymmetric 3D-actuator and an optical pick-up unit comprising such an actuator - Google Patents

Compact asymmetric 3D-actuator and an optical pick-up unit comprising such an actuator

Info

Publication number
TW200725599A
TW200725599A TW095128143A TW95128143A TW200725599A TW 200725599 A TW200725599 A TW 200725599A TW 095128143 A TW095128143 A TW 095128143A TW 95128143 A TW95128143 A TW 95128143A TW 200725599 A TW200725599 A TW 200725599A
Authority
TW
Taiwan
Prior art keywords
actuator
unit
optical pick
asymmetric
compact
Prior art date
Application number
TW095128143A
Other languages
Chinese (zh)
Inventor
Peter Michael Silvester Maria Heijmans
Der Aa Michael Adrianus Henricus Van
Rooij Johannes Antonius Van
Jeroen Arnoldus Leonardus Johannes Raaymakers
Original Assignee
Koninkl Philips Electronics Nv
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 filed Critical Koninkl Philips Electronics Nv
Publication of TW200725599A publication Critical patent/TW200725599A/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0935—Details of the moving parts
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Lens Barrels (AREA)

Abstract

Actuator (1) for use in an optical pick-up unit comprising a moveable lens holder (2), holding a lens (5), and a retaining structure (4), the actuator (1) comprising a coil system (6) and a magnet system (7), configured to interact with each other during use to move the lens holder (2) with respect to the retaining structure (4), wherein a first part of the coil system (6) is arranged opposite a first side (7a) of the magnet system (7) and a second part of the coil system is arranged opposite a second side (7b) of the magnet system (7), said second side (7b) being faced away from said first side (7a); and optical pick-up unit, preferably for a notebook, comprising such an actuator (1).
TW095128143A 2005-08-04 2006-08-01 Compact asymmetric 3D-actuator and an optical pick-up unit comprising such an actuator TW200725599A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05107196 2005-08-04

Publications (1)

Publication Number Publication Date
TW200725599A true TW200725599A (en) 2007-07-01

Family

ID=37434139

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095128143A TW200725599A (en) 2005-08-04 2006-08-01 Compact asymmetric 3D-actuator and an optical pick-up unit comprising such an actuator

Country Status (2)

Country Link
TW (1) TW200725599A (en)
WO (1) WO2007015193A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6344936B1 (en) * 1999-09-29 2002-02-05 Matsushita Electric Industrial Co., Ltd. Objective lens driving apparatus
CN1326127C (en) * 2001-06-20 2007-07-11 索尼公司 Objective lens driving device, optical pickup device and optical information recording and/or reproducing device
EP1514265B1 (en) * 2002-06-04 2006-07-05 Koninklijke Philips Electronics N.V. 3d actuator for optical disc system

Also Published As

Publication number Publication date
WO2007015193A1 (en) 2007-02-08

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