DE69731693D1 - Optische abtastanordnung eines aufzeichnungsträgers - Google Patents

Optische abtastanordnung eines aufzeichnungsträgers

Info

Publication number
DE69731693D1
DE69731693D1 DE69731693T DE69731693T DE69731693D1 DE 69731693 D1 DE69731693 D1 DE 69731693D1 DE 69731693 T DE69731693 T DE 69731693T DE 69731693 T DE69731693 T DE 69731693T DE 69731693 D1 DE69731693 D1 DE 69731693D1
Authority
DE
Germany
Prior art keywords
radiation beam
transparent
record carrier
optical scanner
recording carrier
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69731693T
Other languages
English (en)
Other versions
DE69731693T2 (de
Inventor
Johannes Braat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69731693D1 publication Critical patent/DE69731693D1/de
Publication of DE69731693T2 publication Critical patent/DE69731693T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G11B7/08—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
    • G11B7/1374—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
    • G11B7/12—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)
  • Facsimile Heads (AREA)
  • Vehicle Body Suspensions (AREA)
DE69731693T 1996-03-08 1997-02-25 Optische abtastanordnung eines aufzeichnungsträgers Expired - Fee Related DE69731693T2 (de)

Applications Claiming Priority (5)

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
WOPCT/IB96/00182 1996-03-08
EP96201832 1996-07-05
EP96201832 1996-07-05
PCT/IB1997/000175 WO1997033278A1 (en) 1996-03-08 1997-02-25 Device for optically scanning a record carrier

Publications (2)

Publication Number Publication Date
DE69731693D1 true DE69731693D1 (de) 2004-12-30
DE69731693T2 DE69731693T2 (de) 2005-11-10

Family

ID=8224134

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69731693T Expired - Fee Related DE69731693T2 (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
ATE193781T1 (de) * 1995-03-15 2000-06-15 Koninkl Philips Electronics Nv Vorrichtung zum optischen abtasten eines auzeichnungsmediums
ATE428171T1 (de) * 1995-08-30 2009-04-15 Samsung Electronics Co Ltd Linsenvorrichtung und optisches abtastgerat mit der linsenvorrichtung
KR100292478B1 (ko) * 1995-11-15 2001-06-01 구자홍 대물렌즈

Also Published As

Publication number Publication date
TW323360B (de) 1997-12-21
WO1997033278A1 (en) 1997-09-12
DE69731693T2 (de) 2005-11-10
ES2231855T3 (es) 2005-05-16
CN1181834A (zh) 1998-05-13
ATE283533T1 (de) 2004-12-15
JP3804984B2 (ja) 2006-08-02
KR100536102B1 (ko) 2006-03-20
BR9702117A (pt) 1999-01-26
CN1111852C (zh) 2003-06-18
EP0824754B1 (de) 2004-11-24
JPH11506252A (ja) 1999-06-02
EP0824754A1 (de) 1998-02-25
KR19990008377A (ko) 1999-01-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee