DE69834291D1 - Optische Kopfanordnung - Google Patents

Optische Kopfanordnung

Info

Publication number
DE69834291D1
DE69834291D1 DE69834291T DE69834291T DE69834291D1 DE 69834291 D1 DE69834291 D1 DE 69834291D1 DE 69834291 T DE69834291 T DE 69834291T DE 69834291 T DE69834291 T DE 69834291T DE 69834291 D1 DE69834291 D1 DE 69834291D1
Authority
DE
Germany
Prior art keywords
head assembly
optical head
optical
assembly
head
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
DE69834291T
Other languages
English (en)
Other versions
DE69834291T2 (de
Inventor
Katayama Ryuichi
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69834291D1 publication Critical patent/DE69834291D1/de
Publication of DE69834291T2 publication Critical patent/DE69834291T2/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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
    • G11B7/13927—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means during transducing, e.g. to correct for variation of the spherical aberration due to disc tilt or irregularities in the cover layer thickness
    • 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
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • 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
    • 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
    • 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
    • G11B7/1381—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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
    • 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
    • G11B7/1395—Beam splitters or combiners
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/0014—Measuring characteristics or properties thereof
    • H01S5/0028—Laser diodes used as detectors
    • 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
DE69834291T 1997-05-29 1998-05-28 Optische Kopfanordnung Expired - Lifetime DE69834291T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9140129A JPH10334504A (ja) 1997-05-29 1997-05-29 光ヘッド装置
JP14012997 1997-05-29

Publications (2)

Publication Number Publication Date
DE69834291D1 true DE69834291D1 (de) 2006-06-01
DE69834291T2 DE69834291T2 (de) 2007-04-19

Family

ID=15261578

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69834291T Expired - Lifetime DE69834291T2 (de) 1997-05-29 1998-05-28 Optische Kopfanordnung

Country Status (5)

Country Link
US (1) US6201780B1 (de)
EP (1) EP0881634B1 (de)
JP (1) JPH10334504A (de)
KR (1) KR19980087503A (de)
DE (1) DE69834291T2 (de)

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US6449235B1 (en) * 1998-04-04 2002-09-10 Lg Electronics, Inc. Optical pick-up apparatus and optical recording/reproducing apparatus using the same
US6545958B1 (en) * 1998-08-31 2003-04-08 Ricoh Company, Ltd. Optical-pickup device and tilt-detecting method thereof
JP3728124B2 (ja) 1999-01-07 2005-12-21 ペンタックス株式会社 ビーム形状補正光学系および描画装置
US6760295B1 (en) * 1999-01-08 2004-07-06 Pentax Corporation Optical pick-up
ATE363122T1 (de) 1999-01-22 2007-06-15 Konica Minolta Opto Inc Optische abtastvorrichtung zur informationsaufzeichnung und informationswiedergabe
US6584059B1 (en) 1999-02-17 2003-06-24 Matsushita Electric Industrial Co., Ltd. Information recording and reproducing apparatus
KR100741552B1 (ko) * 1999-07-28 2007-07-20 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학 주사장치
EP1515319B1 (de) * 1999-10-06 2008-07-23 Matsushita Electric Industrial Co., Ltd. Linse, optischer Kopf, optisches Informationsaufzeichnungs-/Wiedergabegerät sowie optisches Informationsaufzeichnungs-/Wiedergabeverfahren
US6930973B2 (en) * 1999-12-24 2005-08-16 Koninklijke Phillips Electronics N.V. Optical element
JP2001216662A (ja) * 2000-02-01 2001-08-10 Pioneer Electronic Corp ピックアップ装置及び情報記録再生装置
KR100694029B1 (ko) * 2000-03-04 2007-03-12 삼성전자주식회사 고밀도 기록/재생용 호환형 광픽업장치
JP4743460B2 (ja) * 2000-03-14 2011-08-10 コニカミノルタホールディングス株式会社 光学部品及び光ピックアップ装置
KR100694032B1 (ko) * 2000-04-17 2007-03-12 삼성전자주식회사 대물렌즈장치 및 이를 적용한 광픽업 장치
EP2264707A3 (de) * 2000-05-12 2012-03-07 Konica Minolta Opto, Inc. Optische Lesekopfvorrichtung
US7903528B2 (en) 2000-05-12 2011-03-08 Konica Minolta Opto, Inc. Optical pick-up apparatus
CN100403419C (zh) * 2000-05-12 2008-07-16 柯尼卡美能达精密光学株式会社 光学拾取装置、记录和/或再现装置
JP2002083999A (ja) * 2000-06-21 2002-03-22 Sharp Corp 半導体発光素子
JP3860953B2 (ja) * 2000-07-07 2006-12-20 日本電産サンキョー株式会社 光ヘッド装置
WO2002029798A1 (en) * 2000-10-03 2002-04-11 Koninklijke Philips Electronics N.V. Optical head for scanning a record carrier
EP1340225A1 (de) * 2000-11-09 2003-09-03 Koninklijke Philips Electronics N.V. Optischer kopf zum abtasten eines aufzeichnungsträgers
JP2003067972A (ja) 2001-05-29 2003-03-07 Nec Corp 光ヘッド装置および光学式情報記録再生装置
JP2009259387A (ja) * 2001-05-29 2009-11-05 Nec Corp 光ヘッド装置および光学式情報記録または再生装置
US6791681B2 (en) * 2001-06-14 2004-09-14 Matsushita Electric Industrial Co., Ltd. Apparatus and method for determining existence range of foreign substance
KR100438274B1 (ko) * 2001-09-12 2004-07-02 엘지전자 주식회사 Ｈｄ／ｄｖｄ 호환 광픽업 장치
WO2003025921A1 (en) * 2001-09-20 2003-03-27 Koninklijke Philips Electronics N.V. Optical scanning device
JP2003173561A (ja) 2001-09-27 2003-06-20 Matsushita Electric Ind Co Ltd 光ディスク装置
JP3864749B2 (ja) * 2001-10-11 2007-01-10 コニカミノルタホールディングス株式会社 光ピックアップ装置の光学系及び光ピックアップ装置の対物レンズ
CN100474417C (zh) 2001-11-15 2009-04-01 三星电子株式会社 可兼容的光拾取器
KR20040071703A (ko) * 2001-12-07 2004-08-12 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학주사장치
WO2003073152A1 (fr) 2002-02-26 2003-09-04 Matsushita Electric Industrial Co., Ltd. Element optique et dispositif de tete optique associe, dispositif d'information optique utilisant ce dispositif de tete optique, ordinateur, lecteur de disques optiques, systeme de navigation automobile, enregistreur et serveur de disques optiques faisant appel a ce dispositif d'information optique
DE60321414D1 (de) 2002-02-27 2008-07-17 Ricoh Kk Optischer Abtastkopf für verschiedene Wellenlängen
US7245407B2 (en) 2002-06-10 2007-07-17 Matsushita Electric Industrial Co., Ltd. Complex objective lens compatible with information media of different thicknesses
US7248409B2 (en) 2002-11-25 2007-07-24 Matsushita Electric Industrial Co., Ltd. Optical element, optical lens, optical head apparatus, optical information apparatus, computer, optical information medium player, car navigation system, optical information medium recorder, and optical information medium server
US7443778B2 (en) 2003-02-27 2008-10-28 Matsushita Electric Industrial Co., Ltd. Optical head device and optical information device using the same, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server
JP3966303B2 (ja) * 2003-04-24 2007-08-29 コニカミノルタオプト株式会社 回折光学素子及びそれを用いた光ピックアップ装置
US20040213134A1 (en) * 2003-04-24 2004-10-28 Minolta Co., Ltd. Optical pickup apparatus
JP4245995B2 (ja) 2003-07-02 2009-04-02 株式会社リコー 光ピックアップ及びこれを用いる光情報処理装置
JPWO2005015701A1 (ja) * 2003-08-07 2006-10-12 日本電気株式会社 多ビームレーザを用いた光源
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JP2005174416A (ja) * 2003-12-09 2005-06-30 Konica Minolta Opto Inc 回折光学素子、対物光学系、光ピックアップ装置及び光情報記録再生装置
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JP4641835B2 (ja) * 2005-03-16 2011-03-02 リコー光学株式会社 位相シフター光学素子の製造方法及び得られる素子
JP4497542B2 (ja) * 2005-05-30 2010-07-07 株式会社リコー 光ピックアップ装置、光ディスク装置及び情報処理装置
JP2007035204A (ja) * 2005-07-29 2007-02-08 Hitachi Media Electoronics Co Ltd 光ピックアップ及び光ディスク装置
JP4618725B2 (ja) * 2005-11-08 2011-01-26 株式会社リコー 光ピックアップ装置及び光ディスク装置
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Also Published As

Publication number Publication date
DE69834291T2 (de) 2007-04-19
JPH10334504A (ja) 1998-12-18
US6201780B1 (en) 2001-03-13
KR19980087503A (ko) 1998-12-05
EP0881634B1 (de) 2006-04-26
EP0881634A1 (de) 1998-12-02

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