WO2005038785A3 - Improved arrangement for dual lens actuator - Google Patents

Improved arrangement for dual lens actuator Download PDF

Info

Publication number
WO2005038785A3
WO2005038785A3 PCT/IB2004/052132 IB2004052132W WO2005038785A3 WO 2005038785 A3 WO2005038785 A3 WO 2005038785A3 IB 2004052132 W IB2004052132 W IB 2004052132W WO 2005038785 A3 WO2005038785 A3 WO 2005038785A3
Authority
WO
WIPO (PCT)
Prior art keywords
disk
dsk
lens
lens actuator
actuator
Prior art date
Application number
PCT/IB2004/052132
Other languages
French (fr)
Other versions
WO2005038785A2 (en
Inventor
Sjoerd Stallinga
Original Assignee
Koninkl Philips Electronics Nv
Sjoerd Stallinga
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, Sjoerd Stallinga filed Critical Koninkl Philips Electronics Nv
Publication of WO2005038785A2 publication Critical patent/WO2005038785A2/en
Publication of WO2005038785A3 publication Critical patent/WO2005038785A3/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

A disk drive for writing and/or reading information into/from an optical multiple data layer disk (DSK), comprising a lens system comprising a first (OL0) and a second (OL1) lens for focusing light onto a first (L0) and a second (L1) data layer, respectively, of the disk (DSK), and an actuator (AC) for moving the lens system along a radial direction (R) of the disk (DSK). The first (OL0) and second (OL1) lenses are positioned in a way that an imaginary centre line (IC) through the at least first (OL0) and second (OL1) lenses is parallel to the disk (DSK) when present and perpendicular to the direction of radial movability of the actuator (AC). Preferably, the shortest distance of the optical axis (k0) of the first lens (OL0) to the centre of the disk (DSK) is approximately equal to the shortest distance of the optical axis (k1) of the second lens (OL1) to the centre of the disk (DSK).
PCT/IB2004/052132 2003-10-21 2004-10-19 Improved arrangement for dual lens actuator WO2005038785A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03103873 2003-10-21
EP03103873.0 2003-10-21

Publications (2)

Publication Number Publication Date
WO2005038785A2 WO2005038785A2 (en) 2005-04-28
WO2005038785A3 true WO2005038785A3 (en) 2005-06-30

Family

ID=34443040

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/052132 WO2005038785A2 (en) 2003-10-21 2004-10-19 Improved arrangement for dual lens actuator

Country Status (2)

Country Link
TW (1) TW200519897A (en)
WO (1) WO2005038785A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4390769B2 (en) * 2005-12-27 2009-12-24 三洋電機株式会社 Optical pickup device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03296939A (en) * 1990-04-13 1991-12-27 Fujitsu Ltd Optical information writer/reader
JPH04205821A (en) * 1990-11-30 1992-07-28 Hitachi Ltd Objective lens drive device
JPH08315408A (en) * 1995-05-17 1996-11-29 Sanyo Electric Co Ltd Optical information recording or reproducing device
EP0838810A1 (en) * 1996-05-09 1998-04-29 Sony Corporation Optical pickup and disk player
JP2001067700A (en) * 1999-09-01 2001-03-16 Sony Corp Optical head and optical disk drive assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03296939A (en) * 1990-04-13 1991-12-27 Fujitsu Ltd Optical information writer/reader
JPH04205821A (en) * 1990-11-30 1992-07-28 Hitachi Ltd Objective lens drive device
JPH08315408A (en) * 1995-05-17 1996-11-29 Sanyo Electric Co Ltd Optical information recording or reproducing device
EP0838810A1 (en) * 1996-05-09 1998-04-29 Sony Corporation Optical pickup and disk player
JP2001067700A (en) * 1999-09-01 2001-03-16 Sony Corp Optical head and optical disk drive assembly

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 139 (P - 1334) 8 April 1992 (1992-04-08) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 547 (P - 1452) 17 November 1992 (1992-11-17) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03 31 March 1997 (1997-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 20 10 July 2001 (2001-07-10) *

Also Published As

Publication number Publication date
TW200519897A (en) 2005-06-16
WO2005038785A2 (en) 2005-04-28

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