DE69423671T2 - Optisches Informationsaufzeichnungs- und/oder Wiedergabegerät - Google Patents

Optisches Informationsaufzeichnungs- und/oder Wiedergabegerät

Info

Publication number
DE69423671T2
DE69423671T2 DE69423671T DE69423671T DE69423671T2 DE 69423671 T2 DE69423671 T2 DE 69423671T2 DE 69423671 T DE69423671 T DE 69423671T DE 69423671 T DE69423671 T DE 69423671T DE 69423671 T2 DE69423671 T2 DE 69423671T2
Authority
DE
Germany
Prior art keywords
information recording
optical information
reproducing device
reproducing
optical
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 - Lifetime
Application number
DE69423671T
Other languages
English (en)
Other versions
DE69423671D1 (de
Inventor
Moritoshi Miyamoto
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.)
Canon Inc
Original Assignee
Canon Inc
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 JP5313237A external-priority patent/JPH07169085A/ja
Priority claimed from JP6068261A external-priority patent/JPH076405A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69423671D1 publication Critical patent/DE69423671D1/de
Publication of DE69423671T2 publication Critical patent/DE69423671T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
DE69423671T 1993-04-23 1994-04-21 Optisches Informationsaufzeichnungs- und/oder Wiedergabegerät Expired - Lifetime DE69423671T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11929193 1993-04-23
JP5313237A JPH07169085A (ja) 1993-12-14 1993-12-14 光学的情報記録再生装置
JP6068261A JPH076405A (ja) 1993-04-23 1994-04-06 光学的情報記録再生装置

Publications (2)

Publication Number Publication Date
DE69423671D1 DE69423671D1 (de) 2000-05-04
DE69423671T2 true DE69423671T2 (de) 2000-08-17

Family

ID=27299683

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69423671T Expired - Lifetime DE69423671T2 (de) 1993-04-23 1994-04-21 Optisches Informationsaufzeichnungs- und/oder Wiedergabegerät

Country Status (3)

Country Link
US (1) US5771219A (de)
EP (1) EP0621590B1 (de)
DE (1) DE69423671T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088170A (en) * 1997-01-28 2000-07-11 Samsung Electronics Co., Ltd. Optical system for shaping light beams and an optical pickup employing the same
JP2001201615A (ja) * 2000-01-21 2001-07-27 Sony Corp 光学素子および光ピックアップ
US6735005B2 (en) * 2001-11-09 2004-05-11 Tokyo Seimitso (Israel) Ltd. Cartesian scanning system
AU2002349062A1 (en) * 2002-11-27 2004-06-18 Nokia Corporation Read/write device for optical memory and method therefore
JP2005339646A (ja) * 2004-05-26 2005-12-08 Mitsumi Electric Co Ltd 光ピックアップおよびそれに使用される回折格子

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623784A (en) * 1984-12-20 1986-11-18 Drexler Technology Corporation Laser recording apparatus with off-center lens and error detection
JPS61148630A (ja) * 1984-12-21 1986-07-07 Fujitsu Ltd 光デイスク装置の光軸ずれ補正方式
JPS61111036U (de) * 1984-12-24 1986-07-14
US5070494A (en) * 1988-04-05 1991-12-03 Ricoh Company, Ltd. Optical pickup device with dual-mode drive mechanism
JPH0296618U (de) * 1989-01-17 1990-08-01
JPH02265028A (ja) * 1989-04-06 1990-10-29 Mitsubishi Electric Corp 光記録再生装置
JP2744635B2 (ja) * 1989-04-17 1998-04-28 三菱電機株式会社 光記録再生装置
US5101389A (en) * 1989-08-04 1992-03-31 Ricoh Company, Ltd. Optical information recording/reproducing apparatus
US5317551A (en) * 1990-07-16 1994-05-31 Matsushita Electric Industrial Co., Ltd. Optical disk head including a light path having a thickness and width greater than the light beam wavelength by a predetermined amount
JPH05109107A (ja) * 1991-10-15 1993-04-30 Ricoh Co Ltd 光ヘツド

Also Published As

Publication number Publication date
EP0621590B1 (de) 2000-03-29
EP0621590A1 (de) 1994-10-26
US5771219A (en) 1998-06-23
DE69423671D1 (de) 2000-05-04

Similar Documents

Publication Publication Date Title
DE69227154T2 (de) Optisches Informationsaufzeichnungs- und -wiedergabegerät
DE69425080D1 (de) Aufzeichnungs- und/oder Wiedergabegerät
DE69125538D1 (de) Informationsaufzeichnungs- und/oder Wiedergabegerät und Methode
DE69418384T2 (de) Informationswiedergabegerät und Informationsaufzeichnungsmedium
DE69428137T2 (de) Plattenaufzeichnungs- und/oder -wiedergabegerät
DE69126736D1 (de) Informationsaufzeichnungs-und Wiedergabegerät
DE69325884T2 (de) Informationsaufzeichnungs- und wiedergabegerät
DE69018150D1 (de) Optisches Aufzeichnungs- und/oder Wiedergabegerät.
DE69420192T2 (de) Aufzeichnungs- und/oder Wiedergabegerät
DE69323369T2 (de) Optisches Informationsaufzeichen- und Wiedergabegerät
DE69225873T2 (de) Informationsaufzeichungs- und Wiedergabegerät
DE69420159T2 (de) Informationsaufzeichnungs- und -wiedergabegerät
DE69427658D1 (de) Informations-Aufzeichnungs-/Wiedergabevorrichtung
DE69432278D1 (de) Aufzeichnungs- und/oder Wiedergabegerät für Informationen und optisches Aufzeichnungsmedium.
DE69423671T2 (de) Optisches Informationsaufzeichnungs- und/oder Wiedergabegerät
DE69212875D1 (de) Informationsaufzeichnungs- und -wiedergabegerät
DE69224804D1 (de) Optisches Informationsaufzeichnung- und Wiedergabegerät
DE69428301D1 (de) Magnetisches Aufzeichnungs- und/oder Wiedergabegerät
DE69325247D1 (de) Informationsaufzeichnungs- und/oder wiedergabegerät
DE69222358T2 (de) Optisches Informationsaufzeichnungs- und Wiedergabegerät
DE69028954D1 (de) Optisches Informationsaufzeichnungs- und -wiedergabegerät
DE69119621D1 (de) Optisches Informationsaufzeichnungs- und/oder Wiedergabegerät
DE69321163D1 (de) Informationsaufzeichnungs- und -wiedergabegerät
DE69428083T2 (de) Optisches Informationsaufzeichnungs-/wiedergabegerät
KR950015298U (ko) 멀티 트랙 기록 재생 장치

Legal Events

Date Code Title Description
8364 No opposition during term of opposition