DE69932017D1 - Optisches Abtastgerät und optische Vorrichtung - Google Patents

Optisches Abtastgerät und optische Vorrichtung

Info

Publication number
DE69932017D1
DE69932017D1 DE69932017T DE69932017T DE69932017D1 DE 69932017 D1 DE69932017 D1 DE 69932017D1 DE 69932017 T DE69932017 T DE 69932017T DE 69932017 T DE69932017 T DE 69932017T DE 69932017 D1 DE69932017 D1 DE 69932017D1
Authority
DE
Germany
Prior art keywords
optical
scanning device
optical scanning
scanning
optical device
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
DE69932017T
Other languages
English (en)
Other versions
DE69932017T2 (de
Inventor
Minoru Ohyama
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Application granted granted Critical
Publication of DE69932017D1 publication Critical patent/DE69932017D1/de
Publication of DE69932017T2 publication Critical patent/DE69932017T2/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
    • G11B7/13—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
    • G11B2007/0006—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)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
DE69932017T 1998-10-19 1999-10-19 Optisches Abtastgerät und optische Vorrichtung Expired - Lifetime DE69932017T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29740098 1998-10-19
JP10297400A JP2000123403A (ja) 1998-10-19 1998-10-19 光ピックアップ及び光デバイス

Publications (2)

Publication Number Publication Date
DE69932017D1 true DE69932017D1 (de) 2006-08-03
DE69932017T2 DE69932017T2 (de) 2007-01-04

Family

ID=17846015

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69932017T Expired - Lifetime DE69932017T2 (de) 1998-10-19 1999-10-19 Optisches Abtastgerät und optische Vorrichtung

Country Status (4)

Country Link
US (1) US6366548B1 (de)
EP (1) EP1001413B1 (de)
JP (1) JP2000123403A (de)
DE (1) DE69932017T2 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6975576B1 (en) * 1999-07-13 2005-12-13 Kabushiki Kaisha Toshiba Optical head device and disk drive system having first and second light sources for emitting light beams of different wavelengths
JP2001028146A (ja) 1999-07-13 2001-01-30 Sony Corp 光学ヘッド及び光記録再生装置
JP2001056952A (ja) 1999-08-19 2001-02-27 Hitachi Ltd 光ヘッド装置およびその製造方法
EP1109163B1 (de) * 1999-12-16 2008-07-09 Victor Company Of Japan, Limited Optische Vorrichtung
JP3689296B2 (ja) * 2000-01-24 2005-08-31 パイオニア株式会社 光ピックアップ装置
JP4560906B2 (ja) * 2000-01-31 2010-10-13 旭硝子株式会社 光ヘッド装置
KR100341335B1 (ko) * 2000-05-18 2002-06-22 윤종용 광디스크 플레이어 및 그 기록 또는 재생방법
EP1160776A3 (de) * 2000-05-31 2004-07-14 Matsushita Electric Industrial Co., Ltd. Optische Abtastgerät und Aufzeichnungsgerät und Wiedergabe von Information
JP2002008258A (ja) * 2000-06-21 2002-01-11 Pioneer Electronic Corp 光ピックアップ装置
JP2002025096A (ja) * 2000-07-07 2002-01-25 Matsushita Electric Ind Co Ltd 半導体光源、光ピックアップヘッド装置及び情報記録再生装置
US6937554B2 (en) * 2000-08-09 2005-08-30 Ricoh Company, Ltd. Optical pickup apparatus having an improved holographic unit, and optical disk drive including the same
JP2002163837A (ja) * 2000-11-27 2002-06-07 Pioneer Electronic Corp 光ピックアップ装置及びレーザダイオードチップ
KR20020081313A (ko) * 2000-12-11 2002-10-26 코닌클리케 필립스 일렉트로닉스 엔.브이. 기록매체 판독 및/또는 기록장치
JP4591602B2 (ja) * 2001-02-14 2010-12-01 旭硝子株式会社 波長選択性回折素子および光ヘッド装置
JP4345256B2 (ja) 2001-02-14 2009-10-14 旭硝子株式会社 波長選択性回折素子および光ヘッド装置
JP2002329917A (ja) * 2001-04-27 2002-11-15 Ricoh Co Ltd レーザーユニット光源
JP4537628B2 (ja) * 2001-08-10 2010-09-01 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
US6822771B2 (en) * 2001-09-28 2004-11-23 Ricoh Company, Ltd. Optical pickup unit and optical disk drive for accurate and stable information recording and reproduction
JP2003317304A (ja) * 2002-04-25 2003-11-07 Mitsumi Electric Co Ltd 光ピックアップ
AU2003263538A1 (en) * 2002-10-02 2004-04-23 Koninklijke Philips Electronics N.V. Optical scanning device with two three-spot gratings
AU2003280751A1 (en) * 2002-11-13 2004-06-03 Asahi Glass Company, Limited Double-wavelength light source unit and optical head device
US7548359B2 (en) 2002-11-13 2009-06-16 Asahi Glass Company, Limited Double-wavelength light source unit and optical head device having four diffraction gratings
JP4094501B2 (ja) * 2002-11-27 2008-06-04 シャープ株式会社 光ピックアップ装置
EP1630798A4 (de) * 2003-01-30 2008-09-24 Matsushita Electric Ind Co Ltd Optischer kopf und einrichtung und system damit
JP5055694B2 (ja) * 2003-12-26 2012-10-24 旭硝子株式会社 偏光性回折素子および光ヘッド装置
JP2005203041A (ja) * 2004-01-16 2005-07-28 Sharp Corp 光集積ユニットおよび光ピックアップ装置
JP2006040316A (ja) * 2004-07-22 2006-02-09 Funai Electric Co Ltd 光ディスク装置
WO2009093228A2 (en) * 2008-01-21 2009-07-30 Prime Sense Ltd. Optical designs for zero order reduction
US8384997B2 (en) 2008-01-21 2013-02-26 Primesense Ltd Optical pattern projection

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3240846B2 (ja) 1994-08-12 2001-12-25 松下電器産業株式会社 光ヘッド
DE69635559T2 (de) 1995-06-05 2006-06-14 Nec Corp Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen
JP3208297B2 (ja) 1995-09-29 2001-09-10 三洋電機株式会社 光ピックアップ
JPH1021577A (ja) 1996-07-03 1998-01-23 Seiko Epson Corp 複合光学素子および光学ヘッドおよび光メモリ装置
JP3520675B2 (ja) 1996-07-29 2004-04-19 松下電器産業株式会社 光ピックアップ
JP3199650B2 (ja) 1996-11-21 2001-08-20 松下電器産業株式会社 光ピックアップ
EP0860819A3 (de) 1997-02-24 1999-01-07 Hoetron, Inc. Optischer Abtastkopf mit zwei Halbleiterlasern mit verschiedenen Wellenlängen
JP3687939B2 (ja) * 1997-05-22 2005-08-24 パイオニア株式会社 光ピックアップ装置
JP3778316B2 (ja) * 1997-05-22 2006-05-24 パイオニア株式会社 光ピックアップ装置
US6195315B1 (en) * 1997-07-11 2001-02-27 Ricoh Company, Ltd. Optical disk apparatus compatible with different types of mediums

Also Published As

Publication number Publication date
JP2000123403A (ja) 2000-04-28
EP1001413A3 (de) 2001-08-22
EP1001413A2 (de) 2000-05-17
DE69932017T2 (de) 2007-01-04
US6366548B1 (en) 2002-04-02
EP1001413B1 (de) 2006-06-21

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