DE60129178D1 - Optisches Abtastgerät, Neigungserkennungsvorrichtung, Neigungserkennungsverfahren, und optisches Plattengerät - Google Patents

Optisches Abtastgerät, Neigungserkennungsvorrichtung, Neigungserkennungsverfahren, und optisches Plattengerät

Info

Publication number
DE60129178D1
DE60129178D1 DE60129178T DE60129178T DE60129178D1 DE 60129178 D1 DE60129178 D1 DE 60129178D1 DE 60129178 T DE60129178 T DE 60129178T DE 60129178 T DE60129178 T DE 60129178T DE 60129178 D1 DE60129178 D1 DE 60129178D1
Authority
DE
Germany
Prior art keywords
tilt detection
optical disk
detection method
optical scanning
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
DE60129178T
Other languages
English (en)
Other versions
DE60129178T2 (de
Inventor
Atsushi Fukumoto
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of DE60129178D1 publication Critical patent/DE60129178D1/de
Application granted granted Critical
Publication of DE60129178T2 publication Critical patent/DE60129178T2/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
    • G11B7/12—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
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
DE60129178T 2000-02-10 2001-02-06 Optisches Abtastgerät, Neigungserkennungsvorrichtung, Neigungserkennungsverfahren, und optisches Plattengerät Expired - Lifetime DE60129178T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000038263 2000-02-10
JP2000038263 2000-02-10

Publications (2)

Publication Number Publication Date
DE60129178D1 true DE60129178D1 (de) 2007-08-16
DE60129178T2 DE60129178T2 (de) 2008-03-13

Family

ID=18562025

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60129178T Expired - Lifetime DE60129178T2 (de) 2000-02-10 2001-02-06 Optisches Abtastgerät, Neigungserkennungsvorrichtung, Neigungserkennungsverfahren, und optisches Plattengerät

Country Status (5)

Country Link
US (1) US6829205B2 (de)
EP (1) EP1124227B1 (de)
KR (1) KR100747765B1 (de)
DE (1) DE60129178T2 (de)
SG (1) SG99885A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6963522B2 (en) * 2001-05-31 2005-11-08 Nec Corporation Optical head apparatus and optical information recording and reproducing apparatus
US20020181353A1 (en) * 2001-05-31 2002-12-05 Nec Corporation Optical head apparatus and optical information recording and reproducing apparatus
US7068571B2 (en) * 2001-10-18 2006-06-27 Sanyo Electric Co., Ltd. Optical recording apparatus and control method thereof
JP4098139B2 (ja) * 2003-04-03 2008-06-11 シャープ株式会社 光ピックアップ
JP3779705B2 (ja) * 2003-08-13 2006-05-31 Ｔｄｋ株式会社 光ヘッド、ｌｄモジュール、光記録再生装置及び光記録再生装置に用いる回折素子
CN1867975A (zh) * 2003-10-13 2006-11-22 皇家飞利浦电子股份有限公司 补偿光数据载体倾斜的方法和装置
JP4158114B2 (ja) * 2004-07-06 2008-10-01 ソニー株式会社 光ピックアップ及びディスクドライブ装置
JP4234109B2 (ja) * 2004-10-18 2009-03-04 株式会社リコー 光ピックアップ装置とこれを用いる情報記録装置
TW200617924A (en) * 2004-11-30 2006-06-01 Lite On It Corp Method and system for adjusting the servo control by monitoring spot status on photo detector of optical pickup head
KR100756042B1 (ko) 2005-01-19 2007-09-07 삼성전자주식회사 회절소자 및 이를 포함하는 광픽업장치
JP2006236514A (ja) * 2005-02-28 2006-09-07 Hitachi Media Electoronics Co Ltd 回折格子、光ピックアップ及び光ディスク装置
JP2007179686A (ja) * 2005-12-28 2007-07-12 Toshiba Corp 光ピックアップおよび光ディスク装置ならびにラジアルチルト検出方法
JP2008027513A (ja) * 2006-07-20 2008-02-07 Sony Corp 光ディスク装置、トラッキングエラー信号生成回路、トラッキングエラー信号の補正方法、プログラム
CN100487384C (zh) * 2007-02-02 2009-05-13 清华大学深圳研究生院 光学头三维力矩器倾斜运动特性曲线的测试方法
JP5695410B2 (ja) * 2010-12-20 2015-04-08 株式会社ミツトヨ 角度検出装置およびその偏心量推定方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009134A1 (de) * 1980-03-10 1981-10-15 Grünzweig + Hartmann Montage GmbH, 6700 Ludwigshafen Waermedaemmung fuer den gewoelbten boden- und/oder deckelbereich eines druckbehaelters
DE68923833T2 (de) * 1988-06-20 1996-06-13 Mitsubishi Electric Corp Optischer Kopf mit Kippkorrekturservomechanismus.
JPH0758559B2 (ja) * 1988-09-02 1995-06-21 シャープ株式会社 光ピックアップ装置
JPH05101431A (ja) * 1991-10-07 1993-04-23 Sony Corp 光デイスク再生装置
JP3193105B2 (ja) * 1992-02-29 2001-07-30 日本ビクター株式会社 チルトエラー検出装置
JPH07130022A (ja) 1993-11-08 1995-05-19 Matsushita Electric Ind Co Ltd 光ヘッド装置および光学素子
EP0709834B1 (de) * 1994-10-31 2000-05-24 Matsushita Electric Industrial Co., Ltd. Kippsensor, optische Platte, und Kippkompensierensverfahren zur Durchführung einer stabilen Kippkompensationsregelung, und Gerät zur Verwendung derselben
JP3447135B2 (ja) * 1995-02-02 2003-09-16 パイオニア株式会社 情報再生装置
JP3176544B2 (ja) * 1995-12-13 2001-06-18 株式会社日立製作所 光ディスク装置
US5828634A (en) * 1996-02-22 1998-10-27 Ricoh Company, Ltd. Optical disk tracking method and device for producing a tracking error signal and a track crossing signal
US6125087A (en) * 1996-11-07 2000-09-26 Hitachi, Ltd. Optical pickup for optical disk apparatus
TW444201B (en) * 1998-02-16 2001-07-01 Hitachi Ltd Optical head
JP3443668B2 (ja) * 1998-04-30 2003-09-08 富士通株式会社 収差補正方法及び収差補正装置
US6532202B1 (en) * 1999-07-07 2003-03-11 Matsushita Electric Industrial Co., Ltd. Optical element, optical head and optical recording reproducing apparatus

Also Published As

Publication number Publication date
EP1124227A3 (de) 2003-01-29
US20010046194A1 (en) 2001-11-29
EP1124227B1 (de) 2007-07-04
EP1124227A2 (de) 2001-08-16
KR20010082074A (ko) 2001-08-29
DE60129178T2 (de) 2008-03-13
SG99885A1 (en) 2003-11-27
KR100747765B1 (ko) 2007-08-08
US6829205B2 (en) 2004-12-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)