ATE36617T1 - Optisches aufzeichnungsgeraet. - Google Patents

Optisches aufzeichnungsgeraet.

Info

Publication number
ATE36617T1
ATE36617T1 AT82107867T AT82107867T ATE36617T1 AT E36617 T1 ATE36617 T1 AT E36617T1 AT 82107867 T AT82107867 T AT 82107867T AT 82107867 T AT82107867 T AT 82107867T AT E36617 T1 ATE36617 T1 AT E36617T1
Authority
AT
Austria
Prior art keywords
sub
light
spots
light spots
guide groove
Prior art date
Application number
AT82107867T
Other languages
English (en)
Inventor
Yoshito Tsunoda
Takeshi Maeda
Shigeru Nakamura
Toshimitsu Kaku
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of ATE36617T1 publication Critical patent/ATE36617T1/de

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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
AT82107867T 1981-08-28 1982-08-26 Optisches aufzeichnungsgeraet. ATE36617T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56134070A JPH0675297B2 (ja) 1981-08-28 1981-08-28 光学的情報記録再生装置
EP82107867A EP0073066B1 (de) 1981-08-28 1982-08-26 Optisches Aufzeichnungsgerät

Publications (1)

Publication Number Publication Date
ATE36617T1 true ATE36617T1 (de) 1988-09-15

Family

ID=15119670

Family Applications (1)

Application Number Title Priority Date Filing Date
AT82107867T ATE36617T1 (de) 1981-08-28 1982-08-26 Optisches aufzeichnungsgeraet.

Country Status (6)

Country Link
US (1) US4532522A (de)
EP (1) EP0073066B1 (de)
JP (1) JPH0675297B2 (de)
AT (1) ATE36617T1 (de)
CA (1) CA1182911A (de)
DE (1) DE3278923D1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695992A (en) * 1983-01-31 1987-09-22 Canon Kabushiki Kaisha Optical information recording-reproducing apparatus in which the relative position of a primary beam and secondary beams on recording medium is varied during recording and reproduction of information
JPS59198542A (ja) * 1983-04-26 1984-11-10 Sony Corp 光学デイスクプレ−ヤ
DE3323007C1 (de) * 1983-06-25 1984-06-28 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Spurfolgesystem mit einem optischen Abtaster für ein Audio- oder Video-Plattenwiedergabegerät
NL8303564A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
DE3339736C1 (de) * 1983-11-03 1985-06-05 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Spurfolgesystem zur Korrektur von Tangentenfehlwinkeln bei optischer Plattenabtastung
US4703408A (en) * 1983-11-28 1987-10-27 Hitachi, Ltd. Apparatus and record carrier for optically writing information
US4720825A (en) * 1984-02-06 1988-01-19 Asahi Kogaku Kogyo Kabushiki Kaisha Optical data reproducing devices having improved trick play capability
US4652722A (en) * 1984-04-05 1987-03-24 Videojet Systems International, Inc. Laser marking apparatus
US4773052A (en) * 1984-09-20 1988-09-20 Pioneer Electronic Corporation Dual mode disk player/recorder
NL8601876A (nl) * 1986-07-18 1988-02-16 Philips Nv Inrichting voor het aftasten van een optische registratiedrager.
JPH0675307B2 (ja) * 1987-01-30 1994-09-21 富士写真フイルム株式会社 光磁気記録媒体用ピツクアツプ
US4998234A (en) * 1987-03-31 1991-03-05 Rees Theodore D Logarithmic servo error detection for optical disk drive
JP2649231B2 (ja) * 1987-11-20 1997-09-03 株式会社 日本コンラックス 光学的情報再生装置
NL8703041A (nl) * 1987-12-16 1989-07-17 Philips Nv Optische aftasteenheid en een optische uitlees- en/of inschrijfinrichting daarvan voorzien.
JPH01171129A (ja) * 1987-12-25 1989-07-06 Copal Co Ltd 光学ヘッド及びトラッキング方法
US5224082A (en) * 1988-02-26 1993-06-29 Fujitsu Limited Method for detecting tracking error in optical disk system and its optical system devices thereof
JPH0642288B2 (ja) * 1988-03-17 1994-06-01 シャープ株式会社 光学式ピックアップ装置
JPH01237940A (ja) * 1988-03-18 1989-09-22 Csk Corp 光記録装置
JPH01269240A (ja) * 1988-04-20 1989-10-26 Csk Corp 光記録装置
US5073888A (en) * 1988-04-21 1991-12-17 Ricoh Company, Ltd. Optical pickup device
DE68923833T2 (de) * 1988-06-20 1996-06-13 Mitsubishi Electric Corp Optischer Kopf mit Kippkorrekturservomechanismus.
US4982395A (en) * 1988-10-03 1991-01-01 Storage Technology Partners Ii Composite optical grating for optical disk data storage systems
EP0392777B1 (de) * 1989-04-10 1996-02-07 Fujitsu Limited Steuersystem für Spursuche in Geräten mit rotierenden Platten mit Korrektur der Exzentrizität
JPH0354733A (ja) * 1989-07-21 1991-03-08 Sony Corp 光学記録および／または再生装置
US5278816A (en) * 1989-09-22 1994-01-11 Russell James T Recording/reproducing system using wavelength/depth selective optical storage medium
FR2724042B1 (fr) * 1994-08-30 1997-01-03 Thomson Csf Systeme d'ecriture/lecture optique d'un support d'enregistrement et application a un disque d'enregistrement
DE19514881A1 (de) * 1995-04-22 1996-10-24 Thomson Brandt Gmbh Kompatibles Aufzeichnungs- und/oder Wiedergabegerät
JP3402997B2 (ja) * 1997-03-12 2003-05-06 株式会社リコー 光ピックアップ装置
US6963522B2 (en) * 2001-05-31 2005-11-08 Nec Corporation Optical head apparatus and optical information recording and reproducing apparatus
US20020181353A1 (en) * 2001-05-31 2002-12-05 Nec Corporation Optical head apparatus and optical information recording and reproducing apparatus
JP4151313B2 (ja) * 2002-06-03 2008-09-17 株式会社日立製作所 光再生装置
JP2009104732A (ja) * 2007-10-25 2009-05-14 Hitachi Maxell Ltd 光ピックアップレンズ

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL160138C (nl) * 1972-05-11 1979-09-17 Philips Nv Inrichting voor het uitlezen van een vlakke registratie- drager.
US3767310A (en) * 1972-06-23 1973-10-23 Ibm Diffraction grating beam splitter
NL174591C (nl) * 1973-02-09 1984-07-02 Philips Nv Schijfvormig registratiedragerlichaam.
US4037252A (en) * 1973-11-10 1977-07-19 U.S. Philips Corporation Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking
JPS5191612A (en) * 1975-02-08 1976-08-11 Kirokubaitaiheno johonokirokuhoho
US4170396A (en) * 1975-04-14 1979-10-09 Siemens Aktiengesellschaft Optical component element
JPS5855567B2 (ja) * 1975-06-06 1983-12-10 株式会社日立製作所 ジヨウホウサイセイホウシキ
GB1506400A (en) * 1975-12-08 1978-04-05 Rank Organisation Ltd Diffraction gratings
JPS5320904A (en) * 1976-08-11 1978-02-25 Toshiba Corp Optical information reader
US4133600A (en) * 1976-10-01 1979-01-09 Eli S. Jacobs Method of manufacturing and utilizing holographic lens means
US4205338A (en) * 1977-11-03 1980-05-27 Laser File Inc. Disc recording tracking system
NL7802860A (nl) * 1978-03-16 1979-09-18 Philips Nv Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen.
JPS54146613A (en) * 1978-05-10 1979-11-16 Hitachi Ltd Optical head
JPS55113139A (en) * 1979-02-16 1980-09-01 Pioneer Video Corp Optical information reading pickup unit
US4283777A (en) * 1979-05-14 1981-08-11 Xerox Corporation Optical memory having a parallel read out
JPS57200960A (en) * 1981-06-04 1982-12-09 Pioneer Electronic Corp Recording and reproducing method and its device

Also Published As

Publication number Publication date
JPH0675297B2 (ja) 1994-09-21
CA1182911A (en) 1985-02-19
US4532522A (en) 1985-07-30
EP0073066B1 (de) 1988-08-17
JPS5837848A (ja) 1983-03-05
EP0073066A3 (en) 1985-05-15
EP0073066A2 (de) 1983-03-02
DE3278923D1 (en) 1988-09-22

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties