ATE283533T1 - Optische abtastanordnung eines aufzeichnungsträgers - Google Patents

Optische abtastanordnung eines aufzeichnungsträgers

Info

Publication number
ATE283533T1
ATE283533T1 AT97904531T AT97904531T ATE283533T1 AT E283533 T1 ATE283533 T1 AT E283533T1 AT 97904531 T AT97904531 T AT 97904531T AT 97904531 T AT97904531 T AT 97904531T AT E283533 T1 ATE283533 T1 AT E283533T1
Authority
AT
Austria
Prior art keywords
radiation beam
optical scanning
transparent
recording medium
record carrier
Prior art date
Application number
AT97904531T
Other languages
English (en)
Inventor
Josephus Johannes Maria Braat
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
Priority claimed from PCT/IB1996/000182 external-priority patent/WO1996028816A2/en
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE283533T1 publication Critical patent/ATE283533T1/de

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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • 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
    • 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
    • G11B7/0908—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 for focusing only
    • G11B7/0909—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 for focusing only by astigmatic methods
    • 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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
    • G11B7/1376—Collimator 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
    • G11B7/12—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
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • 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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/24018—Laminated discs
    • G11B7/24027—Layers; Shape, structure or physical properties thereof
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Vehicle Body Suspensions (AREA)
  • Facsimile Heads (AREA)
AT97904531T 1996-03-08 1997-02-25 Optische abtastanordnung eines aufzeichnungsträgers ATE283533T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/IB1996/000182 WO1996028816A2 (en) 1995-03-15 1996-03-08 Device for optically scanning a recording medium
EP96201832 1996-07-05
PCT/IB1997/000175 WO1997033278A1 (en) 1996-03-08 1997-02-25 Device for optically scanning a record carrier

Publications (1)

Publication Number Publication Date
ATE283533T1 true ATE283533T1 (de) 2004-12-15

Family

ID=8224134

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97904531T ATE283533T1 (de) 1996-03-08 1997-02-25 Optische abtastanordnung eines aufzeichnungsträgers

Country Status (10)

Country Link
EP (1) EP0824754B1 (de)
JP (1) JP3804984B2 (de)
KR (1) KR100536102B1 (de)
CN (1) CN1111852C (de)
AT (1) ATE283533T1 (de)
BR (1) BR9702117A (de)
DE (1) DE69731693T2 (de)
ES (1) ES2231855T3 (de)
TW (1) TW323360B (de)
WO (1) WO1997033278A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088322A (en) 1998-05-07 2000-07-11 Broome; Barry G. Single objective lens for use with CD or DVD optical disks
US11158752B2 (en) * 2016-05-12 2021-10-26 Insolight Sa Optomechanical system for capturing and transmitting incident light with a variable direction of incidence to at least one collecting element and corresponding method
CN110426124A (zh) * 2019-08-12 2019-11-08 长春理工大学 用于芯片式光谱仪能够实现信号光耦合与对准监测的装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794414A (en) * 1972-05-12 1974-02-26 Jessen Inc Wesley Multiple focal contact lens
JPS6273429A (ja) * 1985-09-26 1987-04-04 Toshiba Corp 光学式ピツクアツプの位置検出装置
JP2532818B2 (ja) * 1993-02-01 1996-09-11 松下電器産業株式会社 対物レンズおよび光ヘッド装置
BR9605931A (pt) * 1995-03-15 1997-08-12 Philips Electronics Nv Dispositivo e processo de varredura ótica
DE69637896D1 (de) * 1995-08-30 2009-05-20 Samsung Electronics Co Ltd Linsenvorrichtung und optisches Abtastgerät mit der Linsenvorrichtung
KR100292478B1 (ko) * 1995-11-15 2001-06-01 구자홍 대물렌즈

Also Published As

Publication number Publication date
EP0824754B1 (de) 2004-11-24
WO1997033278A1 (en) 1997-09-12
CN1111852C (zh) 2003-06-18
BR9702117A (pt) 1999-01-26
JPH11506252A (ja) 1999-06-02
EP0824754A1 (de) 1998-02-25
KR19990008377A (ko) 1999-01-25
TW323360B (de) 1997-12-21
KR100536102B1 (ko) 2006-03-20
CN1181834A (zh) 1998-05-13
DE69731693D1 (de) 2004-12-30
DE69731693T2 (de) 2005-11-10
JP3804984B2 (ja) 2006-08-02
ES2231855T3 (es) 2005-05-16

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