JP5063336B2 - 光ディスク装置、及び光ディスク装置を備えた光情報機器 - Google Patents

光ディスク装置、及び光ディスク装置を備えた光情報機器 Download PDF

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Publication number
JP5063336B2
JP5063336B2 JP2007334391A JP2007334391A JP5063336B2 JP 5063336 B2 JP5063336 B2 JP 5063336B2 JP 2007334391 A JP2007334391 A JP 2007334391A JP 2007334391 A JP2007334391 A JP 2007334391A JP 5063336 B2 JP5063336 B2 JP 5063336B2
Authority
JP
Japan
Prior art keywords
focus
optical disc
objective lens
optical
light beam
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
JP2007334391A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008181639A (ja
JP2008181639A5 (enExample
Inventor
寛爾 若林
慶明 金馬
文朝 山崎
俊靖 田中
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.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial 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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP2007334391A priority Critical patent/JP5063336B2/ja
Publication of JP2008181639A publication Critical patent/JP2008181639A/ja
Publication of JP2008181639A5 publication Critical patent/JP2008181639A5/ja
Application granted granted Critical
Publication of JP5063336B2 publication Critical patent/JP5063336B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in 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
    • 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
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Head (AREA)
JP2007334391A 2006-12-26 2007-12-26 光ディスク装置、及び光ディスク装置を備えた光情報機器 Expired - Fee Related JP5063336B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007334391A JP5063336B2 (ja) 2006-12-26 2007-12-26 光ディスク装置、及び光ディスク装置を備えた光情報機器

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006349168 2006-12-26
JP2006349168 2006-12-26
JP2007334391A JP5063336B2 (ja) 2006-12-26 2007-12-26 光ディスク装置、及び光ディスク装置を備えた光情報機器

Publications (3)

Publication Number Publication Date
JP2008181639A JP2008181639A (ja) 2008-08-07
JP2008181639A5 JP2008181639A5 (enExample) 2011-02-10
JP5063336B2 true JP5063336B2 (ja) 2012-10-31

Family

ID=39542588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007334391A Expired - Fee Related JP5063336B2 (ja) 2006-12-26 2007-12-26 光ディスク装置、及び光ディスク装置を備えた光情報機器

Country Status (2)

Country Link
US (1) US7974167B2 (enExample)
JP (1) JP5063336B2 (enExample)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06223384A (ja) * 1993-01-27 1994-08-12 Ricoh Co Ltd 光ピックアップ装置
JP3991483B2 (ja) * 1999-01-08 2007-10-17 ソニー株式会社 ディスクドライブ装置
JP2001060326A (ja) * 1999-08-24 2001-03-06 Sanyo Electric Co Ltd ディスク装置
JP3843656B2 (ja) * 1999-09-14 2006-11-08 三菱電機株式会社 光ディスク装置
JP3833448B2 (ja) * 2000-07-05 2006-10-11 株式会社リコー 光ピックアップ方法および装置および光情報処理装置
JP3596001B2 (ja) * 2001-01-30 2004-12-02 日本電気株式会社 フォーカスサーボ引き込み装置
JP3725457B2 (ja) 2001-09-17 2005-12-14 株式会社東芝 フォーカス引き込み方法及び光ディスク装置
WO2004066288A1 (ja) * 2003-01-20 2004-08-05 Fujitsu Limited 光学的記憶装置及び制御方法
US7317667B2 (en) * 2003-10-31 2008-01-08 Matsushita Electric Industrial Co., Ltd. Wobble signal extraction circuit and optical disk device
JP2007026507A (ja) * 2005-07-14 2007-02-01 Matsushita Electric Ind Co Ltd 光ピックアップ装置

Also Published As

Publication number Publication date
US7974167B2 (en) 2011-07-05
US20080151711A1 (en) 2008-06-26
JP2008181639A (ja) 2008-08-07

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