DE69924196D1 - Optische Abtastvorrichtung - Google Patents

Optische Abtastvorrichtung

Info

Publication number
DE69924196D1
DE69924196D1 DE69924196T DE69924196T DE69924196D1 DE 69924196 D1 DE69924196 D1 DE 69924196D1 DE 69924196 T DE69924196 T DE 69924196T DE 69924196 T DE69924196 T DE 69924196T DE 69924196 D1 DE69924196 D1 DE 69924196D1
Authority
DE
Germany
Prior art keywords
scanning device
optical scanning
optical
scanning
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
DE69924196T
Other languages
English (en)
Other versions
DE69924196T2 (de
Inventor
Tetsuo Ueyama
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Publication of DE69924196D1 publication Critical patent/DE69924196D1/de
Application granted granted Critical
Publication of DE69924196T2 publication Critical patent/DE69924196T2/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
    • G11B7/08—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
    • 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
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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)
  • Semiconductor Lasers (AREA)
DE69924196T 1998-08-06 1999-08-05 Optische Abtastvorrichtung Expired - Lifetime DE69924196T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22286198 1998-08-06
JP22286198A JP3435067B2 (ja) 1998-08-06 1998-08-06 光ピックアップ装置

Publications (2)

Publication Number Publication Date
DE69924196D1 true DE69924196D1 (de) 2005-04-21
DE69924196T2 DE69924196T2 (de) 2006-01-26

Family

ID=16789052

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69924196T Expired - Lifetime DE69924196T2 (de) 1998-08-06 1999-08-05 Optische Abtastvorrichtung

Country Status (5)

Country Link
US (1) US6392965B1 (de)
EP (1) EP0978828B1 (de)
JP (1) JP3435067B2 (de)
KR (1) KR100336599B1 (de)
DE (1) DE69924196T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4156484B2 (ja) 2003-09-30 2008-09-24 シャープ株式会社 光ピックアップ
US20050128902A1 (en) * 2003-12-10 2005-06-16 Ming-Hsien Tsai Optical disc system and associated tilt angle calibration method
JP4118869B2 (ja) * 2004-11-12 2008-07-16 シャープ株式会社 光ピックアップ装置
KR20060084063A (ko) * 2005-01-17 2006-07-21 삼성전자주식회사 광픽업 장치 및 포커싱 제어방법
KR100694102B1 (ko) * 2005-04-11 2007-03-12 삼성전자주식회사 다층 기록 매체 및 그 기록 및/또는 재생을 위한 광픽업장치
JP2012069212A (ja) 2010-09-24 2012-04-05 Jvc Kenwood Corp 光ディスク装置、フォーカス制御方法及び制御プログラム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940001999B1 (ko) 1989-06-06 1994-03-12 샤프 가부시끼가이샤 광 픽업장치
JPH06162531A (ja) 1992-11-20 1994-06-10 Omron Corp 光ヘッド
US5532999A (en) * 1993-06-25 1996-07-02 Matsushita Electric Industrial Co., Ltd. Optical detector having stray carrier absorption regions between light receiving elements, and an optical head using the same
JP3372413B2 (ja) * 1995-12-04 2003-02-04 シャープ株式会社 光ピックアップ装置及び光記録再生装置
JP2910689B2 (ja) * 1996-06-20 1999-06-23 日本電気株式会社 光ヘッド
JPH1021573A (ja) * 1996-07-03 1998-01-23 Ricoh Co Ltd 光ピックアップ装置
JPH10199012A (ja) * 1996-12-27 1998-07-31 Olympus Optical Co Ltd 光ピックアップ
KR100224890B1 (ko) 1996-11-18 1999-10-15 윤종용 다중 트랙 스캔용 광픽업 장치
JP3889104B2 (ja) 1997-02-07 2007-03-07 シャープ株式会社 光ピックアップ装置
JPH10188326A (ja) * 1997-12-22 1998-07-21 Olympus Optical Co Ltd 光ピックアップ装置

Also Published As

Publication number Publication date
EP0978828B1 (de) 2005-03-16
DE69924196T2 (de) 2006-01-26
JP2000057592A (ja) 2000-02-25
US6392965B1 (en) 2002-05-21
EP0978828A2 (de) 2000-02-09
KR100336599B1 (ko) 2002-05-16
JP3435067B2 (ja) 2003-08-11
KR20000017122A (ko) 2000-03-25
EP0978828A3 (de) 2000-12-20

Similar Documents

Publication Publication Date Title
DE69831363D1 (de) Optische Abtastvorrichtung
DE69932563D1 (de) Optische Abtastvorrichtung
DE69937926D1 (de) Optische Schalteinrichtung
DE69722951D1 (de) Optische abtastvorrichtung
DE60037616D1 (de) Optische Querverbindungsvorrichtung
DE69840429D1 (de) Optische Abtastvorrichtung
DE69908294D1 (de) Optische schaltvorrichtung
DE60039403D1 (de) Optische Vorrichtung
DE69724757D1 (de) Optische Polarisationsvorrichtung
DE60036049D1 (de) Optische vorrichtung
DE19882819T1 (de) Optische Empfangsvorrichtung
DE69932017D1 (de) Optisches Abtastgerät und optische Vorrichtung
DE69733742D1 (de) Optisches Abtastgerät
DE69723033D1 (de) Optische Abtastvorrichtung
DE69725386D1 (de) Optische Abtastvorrichtung
DE60039649D1 (de) Kompatibles optisches Abtastgerät
DE69834003D1 (de) Optische Abtastvorrichtung
DE60008691D1 (de) Optische Abtastvorrichtung
DE69718549D1 (de) Optische Abtastvorrichtung
DE69930584D1 (de) Optische Abtastvorrichtung
DE60026673D1 (de) Optische Abtasteinheit
DE69942685D1 (de) Optisches Abtastgerät
DE69905622D1 (de) Optische vorrichtung
DE69934144D1 (de) Optische messvorrichtung
DE60030921D1 (de) Optische Abtastvorrichtung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition