DE69703921D1 - Holographischer Abtastkopf mit zwei Laserquellen - Google Patents

Holographischer Abtastkopf mit zwei Laserquellen

Info

Publication number
DE69703921D1
DE69703921D1 DE69703921T DE69703921T DE69703921D1 DE 69703921 D1 DE69703921 D1 DE 69703921D1 DE 69703921 T DE69703921 T DE 69703921T DE 69703921 T DE69703921 T DE 69703921T DE 69703921 D1 DE69703921 D1 DE 69703921D1
Authority
DE
Germany
Prior art keywords
scanning head
laser sources
holographic scanning
holographic
sources
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
DE69703921T
Other languages
English (en)
Other versions
DE69703921T2 (de
Inventor
Jin-Hwan Kim
Hun-Kuk Shin
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of DE69703921D1 publication Critical patent/DE69703921D1/de
Application granted granted Critical
Publication of DE69703921T2 publication Critical patent/DE69703921T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • 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
    • G11B7/125—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
    • 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
DE69703921T 1996-09-24 1997-09-22 Holographischer Abtastkopf mit zwei Laserquellen Expired - Fee Related DE69703921T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960042120A KR100267233B1 (ko) 1996-09-24 1996-09-24 2광원을 이용한 홀로그램 광픽업

Publications (2)

Publication Number Publication Date
DE69703921D1 true DE69703921D1 (de) 2001-02-22
DE69703921T2 DE69703921T2 (de) 2001-05-23

Family

ID=19475160

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69703921T Expired - Fee Related DE69703921T2 (de) 1996-09-24 1997-09-22 Holographischer Abtastkopf mit zwei Laserquellen

Country Status (7)

Country Link
US (1) US5894464A (de)
EP (1) EP0831469B1 (de)
JP (1) JP3079075B2 (de)
KR (1) KR100267233B1 (de)
CN (1) CN1093974C (de)
DE (1) DE69703921T2 (de)
MY (1) MY120954A (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR100346398B1 (ko) * 1998-10-23 2002-10-25 삼성전자 주식회사 계단형회절격자구조를갖는평판렌즈를채용하여cd-rw에호환하는dvd용광기록/픽업헤드
US6765857B2 (en) 1996-09-03 2004-07-20 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
JP3823425B2 (ja) * 1997-03-27 2006-09-20 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および光ピックアップ装置の補正素子
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
WO1998054704A1 (en) * 1997-05-31 1998-12-03 Daewoo Electronics Co., Ltd. Optical pickup system for recording/reading different types of optical disks
US6104689A (en) * 1997-07-22 2000-08-15 Asahi Kogaku Kogyo Kabushiki Kaisha Sensor system for optical disc drive
TW346687B (en) * 1997-09-15 1998-12-01 Ind Tech Res Inst Package of semiconductor laser diode and compact disk with two-wavelength read/write head
US6043935A (en) * 1998-07-17 2000-03-28 Hoetron, Inc. Wavelength sensitive beam combiner with aberration correction
GB9908404D0 (en) * 1999-04-14 1999-06-09 02Dvd Limited Data recording arrangements
JP4288768B2 (ja) * 1999-07-08 2009-07-01 ソニー株式会社 集積光学素子及び光学ヘッド並びに光記録再生装置
JP4560906B2 (ja) * 2000-01-31 2010-10-13 旭硝子株式会社 光ヘッド装置
US6928035B2 (en) * 2000-07-07 2005-08-09 Matsushita Electric Industrial Co., Ltd. Optical pick-up, optical disk apparatus and information processing apparatus
EP1184848B1 (de) 2000-08-09 2005-05-11 Ricoh Company, Ltd. Optisches Abtastgerät mit einer verbesserten holographischen Einheit und optisches Plattengerät dies enthaltend
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
DE10330945A1 (de) * 2003-07-08 2005-02-03 Deutsche Thomson-Brandt Gmbh Optischer Abtaster mit Mikrooptik zur Strahlkombination
US7020885B2 (en) * 2003-07-31 2006-03-28 Inphase Technologies, Inc. Data storage cartridge loading system
US7475413B2 (en) * 2003-07-31 2009-01-06 Inphase Technologies, Inc. Data storage cartridge having a reduced thickness segment
US7391593B2 (en) * 2003-07-31 2008-06-24 Inphase Technologies, Inc. Cartridge shutter mechanism
KR100536361B1 (ko) 2003-12-10 2005-12-12 삼성전기주식회사 광 픽업장치
WO2005093736A1 (ja) 2004-03-25 2005-10-06 Pioneer Corporation 光ピックアップ
JP2006031902A (ja) * 2004-07-21 2006-02-02 Sony Corp 集光光学系、これを用いた光学ピックアップ装置及び光記録再生装置
KR100676738B1 (ko) * 2004-11-17 2007-01-31 (주)덕진기업 현악기용 광픽업장치
JP2007134016A (ja) * 2005-11-14 2007-05-31 Funai Electric Co Ltd 光ピックアップ装置
EP1964120B1 (de) * 2005-11-21 2010-01-06 Ricoh Company, Ltd. Lichtquelleneinheit, optische detektoreinheit, optische aufnahmeanordnung und optische datenträgereinrichtung
JP2007200476A (ja) * 2006-01-27 2007-08-09 Funai Electric Co Ltd 光ヘッド
JP5509137B2 (ja) * 2010-05-14 2014-06-04 シャープ株式会社 光ピックアップ装置
EP2680593A1 (de) 2012-06-26 2014-01-01 Thomson Licensing Verfahren zur Anpassung eines 3D-Inhalts an einen Betrachter mit Brille

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61260434A (ja) * 1985-05-14 1986-11-18 Matsushita Electric Ind Co Ltd 光学的記録再生装置
JPH07118088B2 (ja) * 1988-08-18 1995-12-18 セイコーエプソン株式会社 光学ヘッド
JP3019870B2 (ja) * 1990-10-22 2000-03-13 松下電器産業株式会社 光ヘッドおよび光学的情報記録／再生装置
JPH04219658A (ja) * 1990-10-12 1992-08-10 Ricoh Co Ltd 光情報記録再生装置
JP2960819B2 (ja) * 1992-07-29 1999-10-12 シャープ株式会社 光ピックアップ装置
US5696750A (en) * 1995-06-05 1997-12-09 Nec Corporation Optical head apparatus for different types of disks
JPH0991700A (ja) * 1995-09-25 1997-04-04 Sony Corp 光学記録媒体の初期化方法とこれに用いる初期化装置
KR0166233B1 (ko) * 1995-11-27 1999-03-20 배순훈 초소형 듀얼 포커스 광 픽-업장치

Also Published As

Publication number Publication date
KR100267233B1 (ko) 2000-10-16
CN1093974C (zh) 2002-11-06
JPH10124918A (ja) 1998-05-15
EP0831469A2 (de) 1998-03-25
EP0831469B1 (de) 2001-01-17
CN1180891A (zh) 1998-05-06
JP3079075B2 (ja) 2000-08-21
DE69703921T2 (de) 2001-05-23
KR19980022835A (ko) 1998-07-06
MY120954A (en) 2005-12-30
EP0831469A3 (de) 1998-08-05
US5894464A (en) 1999-04-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee