HK1015935A1 - Device for the writing and/or reading of optical recording media of various structures - Google Patents

Device for the writing and/or reading of optical recording media of various structures

Info

Publication number
HK1015935A1
HK1015935A1 HK99100924A HK99100924A HK1015935A1 HK 1015935 A1 HK1015935 A1 HK 1015935A1 HK 99100924 A HK99100924 A HK 99100924A HK 99100924 A HK99100924 A HK 99100924A HK 1015935 A1 HK1015935 A1 HK 1015935A1
Authority
HK
Hong Kong
Prior art keywords
writing
reading
optical recording
recording media
various structures
Prior art date
Application number
HK99100924A
Other languages
English (en)
Inventor
Lieu Kim Dang
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of HK1015935A1 publication Critical patent/HK1015935A1/xx

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
    • G11B7/1381—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
    • G11B7/1372—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
    • G11B7/139—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
    • 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
HK99100924A 1995-12-04 1999-03-08 Device for the writing and/or reading of optical recording media of various structures HK1015935A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19544966A DE19544966A1 (de) 1995-12-04 1995-12-04 Gerät zum Beschreiben und/oder Lesen optischer Aufzeichnungsträger unterschiedlichen Aufbaus
PCT/EP1996/005148 WO1997021215A1 (de) 1995-12-04 1996-11-22 Gerät zum beschreiben und/oder lesen optischer aufzeichnungsträger unterschiedlichen aufbaus

Publications (1)

Publication Number Publication Date
HK1015935A1 true HK1015935A1 (en) 1999-10-22

Family

ID=7779000

Family Applications (1)

Application Number Title Priority Date Filing Date
HK99100924A HK1015935A1 (en) 1995-12-04 1999-03-08 Device for the writing and/or reading of optical recording media of various structures

Country Status (12)

Country Link
US (1) US6400670B1 (xx)
EP (1) EP0867023B1 (xx)
JP (1) JP2000501545A (xx)
KR (1) KR100486818B1 (xx)
CN (1) CN1114907C (xx)
AU (1) AU7696296A (xx)
DE (2) DE19544966A1 (xx)
ES (1) ES2194120T3 (xx)
HK (1) HK1015935A1 (xx)
MX (1) MX9804233A (xx)
MY (1) MY123767A (xx)
WO (1) WO1997021215A1 (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6665257B2 (en) * 1996-06-18 2003-12-16 Matsushita Electric Industrial Co., Ltd. Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same
CN1311449C (zh) * 1998-11-09 2007-04-18 松下电器产业株式会社 光信息处理装置和光学元件
US6873588B1 (en) * 1999-03-15 2005-03-29 Matsushita Electric Industrial Co., Ltd. Converging element, optical head, and apparatus and method of optically recording and reproducing information
TW522395B (en) 2000-07-10 2003-03-01 Koninkl Philips Electronics Nv Optical scanning device
KR100536680B1 (ko) * 2003-05-31 2005-12-14 주식회사 대우일렉트로닉스 홀로그래픽 롬 시스템
KR100648516B1 (ko) 2004-03-09 2006-11-24 주식회사 애트랩 광 포인팅 장치
JP2006190353A (ja) * 2004-12-28 2006-07-20 Toshiba Samsung Storage Technology Corp 光学ヘッドおよび光ディスク装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3237217A1 (de) * 1982-10-07 1984-04-12 Siemens AG, 1000 Berlin und 8000 München Blende fuer optische systeme oder geraete
US4733065A (en) * 1984-06-27 1988-03-22 Canon Kabushiki Kaisha Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom
JPH0354740A (ja) * 1989-07-24 1991-03-08 Matsushita Electric Ind Co Ltd 光学情報記録部材および光学情報記録再生装置
US5231624A (en) * 1991-08-01 1993-07-27 Tandy Corporation System and method using a reduce profile light beam for high density recording on optical media
JPH0554414A (ja) * 1991-08-20 1993-03-05 Sanyo Electric Co Ltd 光ピツクアツプ装置
JPH0777031B2 (ja) * 1991-10-16 1995-08-16 インターナショナル・ビジネス・マシーンズ・コーポレイション 収差補償装置
JPH05120720A (ja) * 1991-10-28 1993-05-18 Toshiba Corp 情報記録・再生装置
US5157555A (en) * 1991-12-04 1992-10-20 General Electric Company Apparatus for adjustable correction of spherical aberration
US5281797A (en) * 1991-12-26 1994-01-25 Hitachi, Ltd. Short wavelength optical disk head having a changeable aperture
JPH0620298A (ja) * 1992-06-30 1994-01-28 Sony Corp 光ヘツドの開口絞りの大きさを調整する方法とその装置
CA2164384C (en) * 1995-03-04 1999-08-17 Jin-Yong Kim Optical pick-up apparatus capable of reading data irrespective of disc type
KR0180649B1 (ko) * 1995-03-06 1999-04-15 구자홍 이중 포커싱이 가능한 광픽업장치
ES2149449T3 (es) * 1995-03-15 2000-11-01 Koninkl Philips Electronics Nv Dispositivo para explorar opticamente un medio de registro.
KR960038794A (ko) * 1995-04-14 1996-11-21 사또오 후미오 광학적 정보 재생 장치
JPH08321088A (ja) * 1995-05-25 1996-12-03 Sony Corp 光学ピックアップ
US5787061A (en) * 1995-08-31 1998-07-28 Sanyo Electric Co., Ltd. Optical disc recording reproducing apparatus recording/reproducing information to/from optical discs according to different standards
JP2801176B2 (ja) * 1995-11-15 1998-09-21 エルジー電子株式会社 対物レンズ及びそれを具備した光ピックアップ装置
US5798994A (en) * 1996-01-16 1998-08-25 Kamatani; Yasuo Multi-layered optical disk reading method using liquid crystal diffraction device

Also Published As

Publication number Publication date
KR100486818B1 (ko) 2005-08-10
US6400670B1 (en) 2002-06-04
MX9804233A (es) 1998-09-30
WO1997021215A1 (de) 1997-06-12
DE19544966A1 (de) 1997-06-05
AU7696296A (en) 1997-06-27
CN1203686A (zh) 1998-12-30
EP0867023B1 (de) 2003-03-19
DE59610249D1 (de) 2003-04-24
CN1114907C (zh) 2003-07-16
KR19990071790A (ko) 1999-09-27
MY123767A (en) 2006-06-30
JP2000501545A (ja) 2000-02-08
ES2194120T3 (es) 2003-11-16
EP0867023A1 (de) 1998-09-30

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20101122