JPS638537B2 - - Google Patents

Info

Publication number
JPS638537B2
JPS638537B2 JP53131367A JP13136778A JPS638537B2 JP S638537 B2 JPS638537 B2 JP S638537B2 JP 53131367 A JP53131367 A JP 53131367A JP 13136778 A JP13136778 A JP 13136778A JP S638537 B2 JPS638537 B2 JP S638537B2
Authority
JP
Japan
Prior art keywords
recording
optical
light source
spot
signal
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
Application number
JP53131367A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5558832A (en
Inventor
Satoru Komurasaki
Seio Watanabe
Osamu Ito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13136778A priority Critical patent/JPS5558832A/ja
Priority to US06/087,302 priority patent/US4334299A/en
Priority to FR7926241A priority patent/FR2440055A1/fr
Priority to NLAANVRAGE7907828,A priority patent/NL183857C/xx
Publication of JPS5558832A publication Critical patent/JPS5558832A/ja
Publication of JPS638537B2 publication Critical patent/JPS638537B2/ja
Granted 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
    • 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
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
  • Optical Head (AREA)
JP13136778A 1978-10-24 1978-10-24 Signal recording and reproducing unit of optical type Granted JPS5558832A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP13136778A JPS5558832A (en) 1978-10-24 1978-10-24 Signal recording and reproducing unit of optical type
US06/087,302 US4334299A (en) 1978-10-24 1979-10-22 Optical signal recording and reproducing system
FR7926241A FR2440055A1 (fr) 1978-10-24 1979-10-23 Systeme optique d'enregistrement et de reproduction de signaux
NLAANVRAGE7907828,A NL183857C (nl) 1978-10-24 1979-10-24 Stelsel voor het registreren en weergeven van optische signalen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13136778A JPS5558832A (en) 1978-10-24 1978-10-24 Signal recording and reproducing unit of optical type

Publications (2)

Publication Number Publication Date
JPS5558832A JPS5558832A (en) 1980-05-01
JPS638537B2 true JPS638537B2 (US06826419-20041130-M00005.png) 1988-02-23

Family

ID=15056261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13136778A Granted JPS5558832A (en) 1978-10-24 1978-10-24 Signal recording and reproducing unit of optical type

Country Status (4)

Country Link
US (1) US4334299A (US06826419-20041130-M00005.png)
JP (1) JPS5558832A (US06826419-20041130-M00005.png)
FR (1) FR2440055A1 (US06826419-20041130-M00005.png)
NL (1) NL183857C (US06826419-20041130-M00005.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0218224U (US06826419-20041130-M00005.png) * 1988-07-19 1990-02-06
JP2018016063A (ja) * 2016-07-29 2018-02-01 シヤチハタ株式会社 マーキング装置

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462758A1 (fr) * 1979-08-03 1981-02-13 Thomson Csf Dispositif optique d'acces a une piste portee par un support d'information et systeme de memoire optique comportant un tel dispositif
FR2483664B1 (fr) * 1980-05-28 1985-06-28 Thomson Csf Dispositif optique d'enregistrement-lecture sur un support d'informations et systeme de memoire optique comprenant un tel dispositif
US4466087A (en) * 1981-01-08 1984-08-14 Xerox Corporation Optical memory system for a reading/writing, verifying and tracking module
FR2498752B1 (fr) * 1981-01-23 1985-07-05 Thomson Csf Dispositif optique d'enregistrement lecture d'un support d'information comportant deux sources laser de longueurs d'ondes differentes
NL8101932A (nl) * 1981-04-21 1982-11-16 Philips Nv Inrichting voor het inschrijven en uitlezen van informatiesporen in een optische registratiedrager.
US4494226A (en) * 1981-10-15 1985-01-15 Burroughs Corporation Three beam optical memory system
US4805162A (en) * 1982-11-01 1989-02-14 Storage Technology Partners Ii Fine and coarse servo system for access and tracking on an optical disk
US5051978A (en) 1982-11-30 1991-09-24 Burroughs Corporation Coated media for optical recording
EP0128949A4 (en) * 1982-12-17 1985-06-10 Burroughs Corp COATED MEDIA FOR OPTICAL RECORDING AND RELATED COATING TECHNIQUES.
US4492718A (en) * 1982-12-17 1985-01-08 Burroughs Corporation Rotation coating of disk substrate with acrylate prepolymer
US4592939A (en) * 1982-12-17 1986-06-03 Burroughs Corporation Method of rendering uniform coating on disks and product
JPS60132616U (ja) * 1984-02-13 1985-09-04 パイオニア株式会社 記録装置
US4752922A (en) * 1984-07-06 1988-06-21 Storage Technology Partners 11 Optical disk recording and readout system having read, write and coarse light beams
US4730293A (en) * 1986-09-15 1988-03-08 Drexler Technology Corporation Dual beam optical data system
US5568460A (en) * 1989-03-27 1996-10-22 Nikon Corporation Optical recording and/or reproducing apparatus and method utilizing stimulated photon echo
JP2795238B2 (ja) * 1995-12-08 1998-09-10 日本電気株式会社 ディスク記録再生装置
CN1695184A (zh) * 2002-11-27 2005-11-09 诺基亚公司 光存储器的读/写设备及读/写方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510658A (en) * 1967-11-06 1970-05-05 Ibm Light beam servoing system with memory element having wavelength-discrimi-nating guide and data tracks
US3474457A (en) * 1967-11-13 1969-10-21 Precision Instr Co Laser recording apparatus
US3651281A (en) * 1969-06-06 1972-03-21 Carl H Becker Laser recording system using photomagnetically magnetizable storage medium
US4225873A (en) * 1978-03-27 1980-09-30 Mca Disco-Vision, Inc. Recording and playback system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0218224U (US06826419-20041130-M00005.png) * 1988-07-19 1990-02-06
JP2018016063A (ja) * 2016-07-29 2018-02-01 シヤチハタ株式会社 マーキング装置

Also Published As

Publication number Publication date
US4334299A (en) 1982-06-08
NL183857B (nl) 1988-09-01
JPS5558832A (en) 1980-05-01
FR2440055A1 (fr) 1980-05-23
NL183857C (nl) 1989-02-01
NL7907828A (nl) 1980-04-28
FR2440055B1 (US06826419-20041130-M00005.png) 1985-03-22

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