JPS6118392B2 - - Google Patents

Info

Publication number
JPS6118392B2
JPS6118392B2 JP50126026A JP12602675A JPS6118392B2 JP S6118392 B2 JPS6118392 B2 JP S6118392B2 JP 50126026 A JP50126026 A JP 50126026A JP 12602675 A JP12602675 A JP 12602675A JP S6118392 B2 JPS6118392 B2 JP S6118392B2
Authority
JP
Japan
Prior art keywords
data
record carrier
layers
light
light beam
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
JP50126026A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5231610A (en
Inventor
Teii Ratsuseru Jeimuzu
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.)
ERI SOROMON YAKOBUSU
Original Assignee
ERI SOROMON YAKOBUSU
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 ERI SOROMON YAKOBUSU filed Critical ERI SOROMON YAKOBUSU
Publication of JPS5231610A publication Critical patent/JPS5231610A/ja
Publication of JPS6118392B2 publication Critical patent/JPS6118392B2/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
    • 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
    • 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
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Mechanical Optical Scanning Systems (AREA)
JP50126026A 1974-10-21 1975-10-21 Multilayer optical data recording carrier Granted JPS5231610A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51645374A 1974-10-21 1974-10-21

Publications (2)

Publication Number Publication Date
JPS5231610A JPS5231610A (en) 1977-03-10
JPS6118392B2 true JPS6118392B2 (en, 2012) 1986-05-12

Family

ID=24055665

Family Applications (2)

Application Number Title Priority Date Filing Date
JP50126026A Granted JPS5231610A (en) 1974-10-21 1975-10-21 Multilayer optical data recording carrier
JP59027369A Pending JPS59223949A (ja) 1974-10-21 1984-02-17 光ビ−ム走査装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP59027369A Pending JPS59223949A (ja) 1974-10-21 1984-02-17 光ビ−ム走査装置

Country Status (5)

Country Link
JP (2) JPS5231610A (en, 2012)
CA (2) CA1078060A (en, 2012)
DE (1) DE2546941A1 (en, 2012)
GB (1) GB1516413A (en, 2012)
NL (1) NL7510462A (en, 2012)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074085A (en) * 1976-03-31 1978-02-14 Eli S. Jacobs Multiple beam optical record playback apparatus for simultaneous scan of plural data tracks
NL7803069A (nl) * 1978-03-22 1979-09-25 Philips Nv Meerlaags informatieschijf.
FR2488711B1 (fr) * 1980-08-13 1985-06-28 Thomson Csf Procede thermo-optique d'inscription d'information et support d'information destine a la mise en oeuvre de ce procede
JPS59210544A (ja) * 1983-05-16 1984-11-29 Nec Corp 光記録媒体
US4639745A (en) * 1984-01-11 1987-01-27 Pioneer Electronic Corporation Optical recording medium
US4745484A (en) * 1986-07-30 1988-05-17 Drexler Technology Corporation Method and apparatus for stepped imaging in reading data
DE69027103T2 (de) * 1989-11-22 1996-10-24 Sharp Kk Optisches Aufzeichnungsmedium und Verfahren zur Aufzeichnungs und Wiedergabe von Informationen darauf
FR2676302B1 (fr) 1991-05-07 1993-07-16 Thomson Csf Procede de lecture des informations contenues dans un disque optique.
US5373499A (en) * 1993-07-22 1994-12-13 International Business Machines Corporation Multilayer optical disk and system having multiple optical paths include identical total disk substrate thickness
US5644555A (en) * 1995-01-19 1997-07-01 International Business Machines Corporation Multiple data surface magneto-optical data storage system
JPH09161320A (ja) * 1995-12-08 1997-06-20 Nippon Columbia Co Ltd 貼り合わせ型光情報記録媒体
FR2765716B1 (fr) * 1997-07-02 1999-07-30 Commissariat Energie Atomique Support d'enregistrement optique a deux niveaux superposes, dispositif d'enregistrement et procede de lecture correspondants
GB2428130A (en) * 2005-07-06 2007-01-17 Univ Basel Photographic storage of digital information

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229603B2 (en, 2012) * 1971-08-10 1977-08-03
JPS5828652B2 (ja) * 1972-12-25 1983-06-17 萬世工業株式会社 ヨミトリソウチ

Also Published As

Publication number Publication date
NL7510462A (nl) 1976-04-23
CA1091804A (en) 1980-12-16
JPS5231610A (en) 1977-03-10
DE2546941A1 (de) 1976-04-29
JPS59223949A (ja) 1984-12-15
GB1516413A (en) 1978-07-05
CA1078060A (en) 1980-05-20

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