WO1998034222A3 - Scanning device for optical discs - Google Patents

Scanning device for optical discs Download PDF

Info

Publication number
WO1998034222A3
WO1998034222A3 PCT/IB1998/000038 IB9800038W WO9834222A3 WO 1998034222 A3 WO1998034222 A3 WO 1998034222A3 IB 9800038 W IB9800038 W IB 9800038W WO 9834222 A3 WO9834222 A3 WO 9834222A3
Authority
WO
WIPO (PCT)
Prior art keywords
turntable
rotation
axis
scanning device
optical discs
Prior art date
Application number
PCT/IB1998/000038
Other languages
French (fr)
Other versions
WO1998034222A2 (en
Inventor
Rosmalen Gerard Eduard Van
Original Assignee
Koninkl Philips Electronics Nv
Philips Norden Ab
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, Philips Norden Ab filed Critical Koninkl Philips Electronics Nv
Priority to EP98900034A priority Critical patent/EP0896715A2/en
Priority to JP10529178A priority patent/JP2000508811A/en
Priority to KR1019980707770A priority patent/KR20000064813A/en
Priority to PCT/IB1998/000038 priority patent/WO1998034222A2/en
Publication of WO1998034222A2 publication Critical patent/WO1998034222A2/en
Publication of WO1998034222A3 publication Critical patent/WO1998034222A3/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
    • G11B7/085—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
    • 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
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

A scanning device (1) comprises a turntable (7), which is rotatable about an axis of rotation (7a), and a positioning device which is movable relative to the turntable in a plane which is oriented transversely to the axis of rotation of the turntable. The positioning device comprises a radiation source unit (9) and an actuator unit (23) with an objective system which is movable parallel to the axis of rotation of the turntable. The scanning device further comprises actuating means for moving the actuator unit and the radiation source unit relative to one another between discrete operating positions in at least the plane which is oriented transversely to the axis of rotation of the turntable so as to enable optical discs (3, 5) having mutually different substrate thicknesses and/or information densities to be scanned.
PCT/IB1998/000038 1997-01-30 1998-01-12 Scanning device for optical discs WO1998034222A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98900034A EP0896715A2 (en) 1997-01-30 1998-01-12 Scanning device for optical discs
JP10529178A JP2000508811A (en) 1997-01-30 1998-01-12 Scanning device for optical disk
KR1019980707770A KR20000064813A (en) 1997-01-30 1998-01-12 Scanning apparatus for optical disc
PCT/IB1998/000038 WO1998034222A2 (en) 1997-01-30 1998-01-12 Scanning device for optical discs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97200254.7 1997-01-30
PCT/IB1998/000038 WO1998034222A2 (en) 1997-01-30 1998-01-12 Scanning device for optical discs

Publications (2)

Publication Number Publication Date
WO1998034222A2 WO1998034222A2 (en) 1998-08-06
WO1998034222A3 true WO1998034222A3 (en) 1998-10-08

Family

ID=11004646

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/000038 WO1998034222A2 (en) 1997-01-30 1998-01-12 Scanning device for optical discs

Country Status (1)

Country Link
WO (1) WO1998034222A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727776A1 (en) * 1995-02-20 1996-08-21 Mitsubishi Denki Kabushiki Kaisha Objective lens driving device and optical information recording/regenerating device
EP0742552A2 (en) * 1995-05-08 1996-11-13 SANYO ELECTRIC Co., Ltd. Optical pickup device which can be adapted to a plurality of types of optical disks
JPH08315408A (en) * 1995-05-17 1996-11-29 Sanyo Electric Co Ltd Optical information recording or reproducing device
JPH08315409A (en) * 1995-05-17 1996-11-29 Sanyo Electric Co Ltd Optical information recording or reproducing device
JPH08329517A (en) * 1995-03-31 1996-12-13 Sanyo Electric Co Ltd Optical information recording or reproducing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727776A1 (en) * 1995-02-20 1996-08-21 Mitsubishi Denki Kabushiki Kaisha Objective lens driving device and optical information recording/regenerating device
JPH08329517A (en) * 1995-03-31 1996-12-13 Sanyo Electric Co Ltd Optical information recording or reproducing device
EP0742552A2 (en) * 1995-05-08 1996-11-13 SANYO ELECTRIC Co., Ltd. Optical pickup device which can be adapted to a plurality of types of optical disks
JPH08315408A (en) * 1995-05-17 1996-11-29 Sanyo Electric Co Ltd Optical information recording or reproducing device
JPH08315409A (en) * 1995-05-17 1996-11-29 Sanyo Electric Co Ltd Optical information recording or reproducing device

Also Published As

Publication number Publication date
WO1998034222A2 (en) 1998-08-06

Similar Documents

Publication Publication Date Title
CA2241544A1 (en) Method and device for recording a refractive index pattern in an optical medium
MY124773A (en) Optical recording medium, optical recording method, optical reproducing method, optical recording device, optical reproducing device, and optical recording/reproducing device
DE69527904D1 (en) Extended torsion lever sample, scanning microscope, information recording / reproducing device
EP1351226A4 (en) Optical information recording apparatus and method
AU6136799A (en) Scanning electron beam microscope
AU3972799A (en) Single objective lens for use with cd or dvd optical disks
DE69806995T2 (en) Device for material processing, data recording or data reproduction with a scanning probe microscope
EP1542219A3 (en) Hologram recording medium and recording and reproducing system
EP0360144A3 (en) Optical memory device and information processing apparatus
AU3540397A (en) Magnification and tracking error correction system for multiple track optical disk reader
SG93842A1 (en) Beam irradiation apparatus, optical apparatus having beam irradiation apparatus for information recording medium, method for manufacturing original disk for information recording medium, and method for manufacturing information recording medium
MY118763A (en) Electronic equipment and recording and/or reproducing apparatus (1) for recording medium
EP0973155A3 (en) Optical disk and optical disk apparatus employing the same
EP0886163A3 (en) Fiducial mark and optical system having a fiducial mark capable to be illuminated
AU3147897A (en) System for adjusting the spot size in an optical recording system
WO1999049460A3 (en) Optical scanning unit comprising a first and a second lens unit
EP0785543A3 (en) Condenser lens for optical disks
WO1999048091A3 (en) Optical record carrier and scanning apparatus
WO1998034222A3 (en) Scanning device for optical discs
EP1170736A3 (en) Pickup device
CA2011384A1 (en) Track access control apparatus for optical disk apparatus
EP0802529A3 (en) Optical information recording or playbacking system, optical head apparatus used in the system and method for recording or playbacking optical information
EP1091356A3 (en) Bias voltage controlling apparatus, information reproducing apparatus and information recording apparatus
EP1262959A3 (en) Seek control method and storage apparatus
AU3420299A (en) Apparatus for the recording or for the reproduction of information with a drive system for a scanning device

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 98800348.1

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): CN JP KR

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 1998900034

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1019980707770

Country of ref document: KR

AK Designated states

Kind code of ref document: A3

Designated state(s): CN JP KR

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWP Wipo information: published in national office

Ref document number: 1998900034

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1019980707770

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 1998900034

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1019980707770

Country of ref document: KR