JPS60150240A - 熱式情報記録装置 - Google Patents

熱式情報記録装置

Info

Publication number
JPS60150240A
JPS60150240A JP59006179A JP617984A JPS60150240A JP S60150240 A JPS60150240 A JP S60150240A JP 59006179 A JP59006179 A JP 59006179A JP 617984 A JP617984 A JP 617984A JP S60150240 A JPS60150240 A JP S60150240A
Authority
JP
Japan
Prior art keywords
laser beam
recording
irradiation
medium
tracking
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.)
Granted
Application number
JP59006179A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0419610B2 (enrdf_load_stackoverflow
Inventor
Jun Saito
斎藤　旬
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.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku KK
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP59006179A priority Critical patent/JPS60150240A/ja
Publication of JPS60150240A publication Critical patent/JPS60150240A/ja
Publication of JPH0419610B2 publication Critical patent/JPH0419610B2/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
    • G11B7/12—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
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • 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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Head (AREA)
JP59006179A 1984-01-17 1984-01-17 熱式情報記録装置 Granted JPS60150240A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59006179A JPS60150240A (ja) 1984-01-17 1984-01-17 熱式情報記録装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59006179A JPS60150240A (ja) 1984-01-17 1984-01-17 熱式情報記録装置

Publications (2)

Publication Number Publication Date
JPS60150240A true JPS60150240A (ja) 1985-08-07
JPH0419610B2 JPH0419610B2 (enrdf_load_stackoverflow) 1992-03-31

Family

ID=11631318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59006179A Granted JPS60150240A (ja) 1984-01-17 1984-01-17 熱式情報記録装置

Country Status (1)

Country Link
JP (1) JPS60150240A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63175230A (ja) * 1987-01-16 1988-07-19 Nikon Corp 光媒体記録方法
JPS63253536A (ja) * 1987-04-10 1988-10-20 Hitachi Ltd 可逆相変化を用いた情報記録方法
JPH01155521A (ja) * 1987-12-11 1989-06-19 Nippon Telegr & Teleph Corp <Ntt> 光ディスクへの記録方法
JP2003085753A (ja) * 2001-09-10 2003-03-20 Pioneer Electronic Corp 情報記録装置および情報記録方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63175230A (ja) * 1987-01-16 1988-07-19 Nikon Corp 光媒体記録方法
JPS63253536A (ja) * 1987-04-10 1988-10-20 Hitachi Ltd 可逆相変化を用いた情報記録方法
JPH01155521A (ja) * 1987-12-11 1989-06-19 Nippon Telegr & Teleph Corp <Ntt> 光ディスクへの記録方法
JP2003085753A (ja) * 2001-09-10 2003-03-20 Pioneer Electronic Corp 情報記録装置および情報記録方法

Also Published As

Publication number Publication date
JPH0419610B2 (enrdf_load_stackoverflow) 1992-03-31

Similar Documents

Publication Publication Date Title
US4985881A (en) Record carrier for a magneto-optical disc memory having guide grooves of a plurality of tracks disposed with a predetermined relation to light spot diameter
JP2647875B2 (ja) 光磁気信号記録再生方法
JPH056590A (ja) 光磁気記録装置
JPS6289233A (ja) 光学的記録再生装置
JPS61243974A (ja) 情報記録媒体
JP2002216403A (ja) 光磁気ディスクのアニール方法、及び光磁気ディスク
JPH0427610B2 (enrdf_load_stackoverflow)
JPS60150240A (ja) 熱式情報記録装置
JP2839498B2 (ja) 光ディスク媒体
JPH01229426A (ja) 光学情報の記録方法
JPS61105745A (ja) 熱的情報記録光学的再生方式
JP2807470B2 (ja) 光メモリ素子
JPH11149642A (ja) 光記録媒体およびその製造方法
JP3120615B2 (ja) 光記録装置
JP2770522B2 (ja) 光学的情報の記録方法
JPH0731835B2 (ja) レ−ザビ−ムによる情報記録装置
JPS60160001A (ja) 炭化物で表面保護されたミラー
JP2604702B2 (ja) 光磁気記録再生消去方式及びその装置
JPH07201096A (ja) 円盤状記録媒体の再生方法及び再生装置
JPH0619835B2 (ja) 情報記録装置
JP2003109202A (ja) 情報記録媒体の記録方法
JPH08221839A (ja) 光磁気ディスク装置、光磁気記録再生方法及び光磁気記録媒体
JPH0527175B2 (enrdf_load_stackoverflow)
JPH03156726A (ja) 光学的情報の消去方法
JPH06150423A (ja) 光磁気記録装置

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term