DE69701919T2 - Anordnung mit optischem Kopf - Google Patents

Anordnung mit optischem Kopf

Info

Publication number
DE69701919T2
DE69701919T2 DE69701919T DE69701919T DE69701919T2 DE 69701919 T2 DE69701919 T2 DE 69701919T2 DE 69701919 T DE69701919 T DE 69701919T DE 69701919 T DE69701919 T DE 69701919T DE 69701919 T2 DE69701919 T2 DE 69701919T2
Authority
DE
Germany
Prior art keywords
optical head
head arrangement
arrangement
optical
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
DE69701919T
Other languages
English (en)
Other versions
DE69701919D1 (de
Inventor
Ryuichi Katyama
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
Publication of DE69701919D1 publication Critical patent/DE69701919D1/de
Application granted granted Critical
Publication of DE69701919T2 publication Critical patent/DE69701919T2/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
    • G11B7/1353—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
    • G11B7/13—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
    • G11B7/12—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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • 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
    • G11B7/1381—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
    • G11B7/139—Numerical aperture control means
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
DE69701919T 1996-02-06 1997-02-06 Anordnung mit optischem Kopf Expired - Lifetime DE69701919T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1974496 1996-02-06
JP8250081A JP3062099B2 (ja) 1996-02-06 1996-09-20 光ヘッド装置

Publications (2)

Publication Number Publication Date
DE69701919D1 DE69701919D1 (de) 2000-06-15
DE69701919T2 true DE69701919T2 (de) 2001-02-01

Family

ID=26356594

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69701919T Expired - Lifetime DE69701919T2 (de) 1996-02-06 1997-02-06 Anordnung mit optischem Kopf

Country Status (4)

Country Link
US (1) US5875167A (de)
EP (1) EP0803867B1 (de)
JP (1) JP3062099B2 (de)
DE (1) DE69701919T2 (de)

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JP3861270B2 (ja) * 1996-02-23 2006-12-20 エプソントヨコム株式会社 光ピックアップ及びそれに用いる光学素子
US6016301A (en) * 1996-04-01 2000-01-18 Sony Corporation Optical pickup device and optical disc reproducing apparatus
KR100263154B1 (ko) * 1996-08-29 2000-09-01 윤종용 광학적 위상판을 사용한 광픽업
US6449237B1 (en) * 1996-08-29 2002-09-10 Samsung Electronics Co., Ltd. Optical recording and pickup head for digital versatile disc compatible with read-writable compact disc by adopting flat plate lens having staircase type diffraction grating structure
US6275461B1 (en) 1996-08-29 2001-08-14 Samsung Electronic Co., Ltd. Optical pickup using an optical phase plate
US6222812B1 (en) 1996-08-29 2001-04-24 Samsung Electronics Co., Ltd. Optical pickup using an optical phase plate
JPH10106019A (ja) * 1996-09-24 1998-04-24 Nec Corp ２波長分離型光ヘッド
US6256283B1 (en) * 1996-10-01 2001-07-03 Matsushita Electric Industrial Co., Ltd. Optical pickup having a common light beam path for passing either of a plurality of kinds of light beams
US6556533B1 (en) 1996-10-01 2003-04-29 Matsushita Electric Industrial Co., Ltd. Optical pickup device
JPH10188322A (ja) * 1996-12-26 1998-07-21 Nec Corp 光ヘッド
KR100238077B1 (ko) * 1997-01-28 2000-01-15 윤종용 평판을 사용하여 cd-r디스크에 호환하는 dvd디스크의 광픽업
US6639889B1 (en) 1997-02-13 2003-10-28 Samsung Electronics Co., Ltd. Recording/reproducing apparatus including an optical pickup having an objective lens compatible with a plurality of optical disk formats
JP3653923B2 (ja) * 1997-03-19 2005-06-02 ソニー株式会社 記録再生装置および方法
US6304540B1 (en) 1998-03-30 2001-10-16 Samsung Electronics Co., Ltd. Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens
KR100209918B1 (ko) * 1997-03-28 1999-07-15 윤종용 홀로그램형링렌즈를 사용하여 cd-r과 호환하는 dvd용 광픽업
JPH10312574A (ja) * 1997-05-09 1998-11-24 Ricoh Co Ltd 光ディスク装置
US6285645B1 (en) * 1997-05-27 2001-09-04 Asahi Glass Company Ltd. Optical device
KR100291557B1 (ko) * 1997-08-30 2001-06-01 윤종용 환형차폐면을사용한cd－r및dvd호환광픽업
DE69804993T2 (de) * 1997-09-10 2002-10-31 Citizen Watch Co Ltd Optisches gerät
KR100255243B1 (ko) * 1997-11-19 2000-05-01 윤종용 광기록매체들에 호환가능한 광픽업
JPH11213405A (ja) * 1998-01-22 1999-08-06 Sony Corp 光学ヘッド及びトラッキングエラー信号検出方法
KR19990074812A (ko) 1998-03-14 1999-10-05 윤종용 호환형 광픽업장치
WO1999050692A1 (fr) * 1998-03-27 1999-10-07 Hitachi, Ltd. Reseau de diffraction polarisant et tete magneto-optique fabriquee a partir d'un tel reseau
US6449235B1 (en) 1998-04-04 2002-09-10 Lg Electronics, Inc. Optical pick-up apparatus and optical recording/reproducing apparatus using the same
US6043935A (en) * 1998-07-17 2000-03-28 Hoetron, Inc. Wavelength sensitive beam combiner with aberration correction
KR100295102B1 (ko) * 1998-07-29 2001-07-12 이형도 광픽업
US6545958B1 (en) * 1998-08-31 2003-04-08 Ricoh Company, Ltd. Optical-pickup device and tilt-detecting method thereof
KR100604788B1 (ko) * 1998-10-23 2006-07-26 삼성전자주식회사 호환형 광픽업장치
JP3462126B2 (ja) * 1999-07-19 2003-11-05 シャープ株式会社 光ピックアップ装置およびレンズの傾き検出方法
JP2001043544A (ja) * 1999-07-28 2001-02-16 Nec Corp 光ヘッド装置
EP1209671A4 (de) * 1999-08-04 2005-05-04 Hitachi Ltd Lasermodul und optischer kopf
JP3724290B2 (ja) 1999-11-18 2005-12-07 株式会社日立製作所 光ヘッド、及び、それを用いた光学的情報記録再生装置
JP3831576B2 (ja) * 2000-05-26 2006-10-11 株式会社リコー 光ピックアップ装置
US20020105892A1 (en) * 2000-06-06 2002-08-08 Seiji Onishi Optical pickup device
JP4903300B2 (ja) 2000-07-31 2012-03-28 旭硝子株式会社 光学装置
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
US7321533B2 (en) * 2002-03-20 2008-01-22 Sharp Kabushiki Kaisha Optical pickup device having a wavelength selecting film and an optical reflector
KR20030093683A (ko) 2002-06-05 2003-12-11 삼성전자주식회사 호환형 광픽업
JP2004086136A (ja) * 2002-07-01 2004-03-18 Seiko Epson Corp 光トランシーバの製造方法及び調整装置
WO2005071672A1 (ja) * 2004-01-26 2005-08-04 Victor Company Of Japan, Limited 光デバイス及び光ピックアップ装置
JP4299185B2 (ja) * 2004-04-27 2009-07-22 株式会社ディスコ レーザー加工装置
WO2005119669A1 (ja) * 2004-06-03 2005-12-15 Matsushita Electric Industrial Co., Ltd. 光記録再生装置用光ヘッド
JP2008130128A (ja) * 2006-11-17 2008-06-05 Funai Electric Co Ltd 光ピックアップ装置
JP2008130129A (ja) * 2006-11-17 2008-06-05 Funai Electric Co Ltd 光ピックアップ装置
JP2008140484A (ja) * 2006-12-04 2008-06-19 Funai Electric Co Ltd 光ピックアップ装置
JP2008140483A (ja) * 2006-12-04 2008-06-19 Funai Electric Co Ltd 光ピックアップ装置
JPWO2009139258A1 (ja) * 2008-05-14 2011-09-15 コニカミノルタオプト株式会社 光学素子、および光アシスト式の磁気記録ヘッド
JPWO2010052863A1 (ja) * 2008-11-05 2012-04-05 日立マクセル株式会社 グレーティング素子、光ピックアップ光学系及びグレーティング素子の設計方法
JP2009163879A (ja) * 2009-04-27 2009-07-23 Asahi Glass Co Ltd 光ヘッド装置
JP2011150767A (ja) * 2010-01-25 2011-08-04 Hitachi Media Electoronics Co Ltd 光学ヘッド
US9025086B2 (en) 2012-04-13 2015-05-05 Red.Com, Inc. Video projector system
ES2688819T3 (es) 2012-04-13 2018-11-07 Red.Com, Llc Sistema de proyector de vídeo

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JPS63146244A (ja) * 1986-12-10 1988-06-18 Hitachi Ltd 波長多重光記録装置
US5281797A (en) * 1991-12-26 1994-01-25 Hitachi, Ltd. Short wavelength optical disk head having a changeable aperture
US5513164A (en) * 1992-09-11 1996-04-30 Kabushiki Kaisha Toshiba Optical recording and reproducing apparatus
JP3309470B2 (ja) * 1993-03-10 2002-07-29 松下電器産業株式会社 光情報記録再生装置
JP2559011B2 (ja) 1993-08-25 1996-11-27 松下電器産業株式会社 光ヘッド
JP3240846B2 (ja) * 1994-08-12 2001-12-25 松下電器産業株式会社 光ヘッド
CA2164384C (en) * 1995-03-04 1999-08-17 Jin-Yong Kim Optical pick-up apparatus capable of reading data irrespective of disc type
KR100373673B1 (ko) * 1995-05-08 2003-05-09 산요 덴키 가부시키가이샤 광학기록·재생장치및광픽업
DE69627752T2 (de) * 1995-06-05 2003-10-16 Nec Corp Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen
US5696749A (en) * 1996-06-28 1997-12-09 Eastman Kodak Company Dual-wavelength optical recording head utilizing grating beam splitter and integrated laser and detectors

Also Published As

Publication number Publication date
DE69701919D1 (de) 2000-06-15
EP0803867B1 (de) 2000-05-10
JPH09274730A (ja) 1997-10-21
EP0803867A2 (de) 1997-10-29
JP3062099B2 (ja) 2000-07-10
EP0803867A3 (de) 1997-11-05
US5875167A (en) 1999-02-23

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