DE69614052D1 - Optische Abtastvorrichtung zur Aufzeichnung/Wiedergabe mit hoher Dichte - Google Patents

Optische Abtastvorrichtung zur Aufzeichnung/Wiedergabe mit hoher Dichte

Info

Publication number
DE69614052D1
DE69614052D1 DE69614052T DE69614052T DE69614052D1 DE 69614052 D1 DE69614052 D1 DE 69614052D1 DE 69614052 T DE69614052 T DE 69614052T DE 69614052 T DE69614052 T DE 69614052T DE 69614052 D1 DE69614052 D1 DE 69614052D1
Authority
DE
Germany
Prior art keywords
reproduction
high density
optical scanner
density recording
recording
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
DE69614052T
Other languages
English (en)
Other versions
DE69614052T2 (de
Inventor
Yong-Jae Lee
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of DE69614052D1 publication Critical patent/DE69614052D1/de
Application granted granted Critical
Publication of DE69614052T2 publication Critical patent/DE69614052T2/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
    • G11B7/1381—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
    • G11B7/1372—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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1367—Stepped phase plates
    • 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
    • G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
    • 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
    • G11B7/0901—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 track following only
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69614052T 1995-08-18 1996-05-14 Optische Abtastvorrichtung zur Aufzeichnung/Wiedergabe mit hoher Dichte Expired - Fee Related DE69614052T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950025457A KR0165425B1 (ko) 1995-08-18 1995-08-18 고밀도 기록재생을 위한 광픽업

Publications (2)

Publication Number Publication Date
DE69614052D1 true DE69614052D1 (de) 2001-08-30
DE69614052T2 DE69614052T2 (de) 2002-01-24

Family

ID=19423748

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69614052T Expired - Fee Related DE69614052T2 (de) 1995-08-18 1996-05-14 Optische Abtastvorrichtung zur Aufzeichnung/Wiedergabe mit hoher Dichte

Country Status (6)

Country Link
US (1) US5691970A (de)
EP (1) EP0759610B1 (de)
JP (1) JP2721145B2 (de)
KR (1) KR0165425B1 (de)
CN (1) CN1073733C (de)
DE (1) DE69614052T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757758A (en) * 1995-12-19 1998-05-26 Konica Corporation Optical pickup apparatus objective lens and converging optical system for optical pickup and optical disk apparatus
KR20030019692A (ko) * 2001-08-30 2003-03-07 삼성전자주식회사 다중광 형성 방법
JP2012256394A (ja) * 2011-06-09 2012-12-27 Hitachi Media Electoronics Co Ltd 光ピックアップ装置及び光ディスク装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0792916B2 (ja) * 1985-02-08 1995-10-09 松下電器産業株式会社 光学記録信号再生方法
JPH02126429A (ja) * 1988-11-05 1990-05-15 Mitsubishi Electric Corp 焦点誤差検出装置
JP3099906B2 (ja) * 1990-04-27 2000-10-16 日本ビクター株式会社 光ピックアップ
JPH0447528A (ja) * 1990-06-15 1992-02-17 Olympus Optical Co Ltd 光学式再生装置
JP2643595B2 (ja) * 1990-11-29 1997-08-20 日本電気株式会社 光ヘッド装置
JP3105033B2 (ja) * 1991-07-31 2000-10-30 オリンパス光学工業株式会社 対物レンズの位置検出装置
JP3096154B2 (ja) * 1992-05-21 2000-10-10 アルプス電気株式会社 光ヘッド装置
DE69319673T2 (de) * 1992-08-12 1999-02-25 Philips Electronics Nv Einrichtung zur optischen Abtastung einer Oberfläche
KR100252170B1 (ko) * 1993-02-27 2000-04-15 윤종용 광헤드
JPH07220288A (ja) * 1994-01-25 1995-08-18 Ricoh Co Ltd 光ピックアップ装置およびその調整方法

Also Published As

Publication number Publication date
EP0759610B1 (de) 2001-07-25
KR0165425B1 (ko) 1999-03-20
KR970012401A (ko) 1997-03-29
EP0759610A3 (de) 1997-06-11
JPH09106567A (ja) 1997-04-22
CN1143799A (zh) 1997-02-26
JP2721145B2 (ja) 1998-03-04
US5691970A (en) 1997-11-25
EP0759610A2 (de) 1997-02-26
DE69614052T2 (de) 2002-01-24
CN1073733C (zh) 2001-10-24

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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