JPH0468693B2 - - Google Patents

Info

Publication number
JPH0468693B2
JPH0468693B2 JP2215283A JP2215283A JPH0468693B2 JP H0468693 B2 JPH0468693 B2 JP H0468693B2 JP 2215283 A JP2215283 A JP 2215283A JP 2215283 A JP2215283 A JP 2215283A JP H0468693 B2 JPH0468693 B2 JP H0468693B2
Authority
JP
Japan
Prior art keywords
recording medium
pickup device
optical pickup
light beam
recording
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
JP2215283A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59148159A (ja
Inventor
Hiroyasu Nose
Nobutoshi Mizusawa
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2215283A priority Critical patent/JPS59148159A/ja
Publication of JPS59148159A publication Critical patent/JPS59148159A/ja
Publication of JPH0468693B2 publication Critical patent/JPH0468693B2/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
    • 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

Landscapes

  • Optical Head (AREA)
JP2215283A 1983-02-15 1983-02-15 光ピツクアツプ装置 Granted JPS59148159A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2215283A JPS59148159A (ja) 1983-02-15 1983-02-15 光ピツクアツプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2215283A JPS59148159A (ja) 1983-02-15 1983-02-15 光ピツクアツプ装置

Publications (2)

Publication Number Publication Date
JPS59148159A JPS59148159A (ja) 1984-08-24
JPH0468693B2 true JPH0468693B2 (sk) 1992-11-04

Family

ID=12074873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2215283A Granted JPS59148159A (ja) 1983-02-15 1983-02-15 光ピツクアツプ装置

Country Status (1)

Country Link
JP (1) JPS59148159A (sk)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH065585B2 (ja) * 1984-02-15 1994-01-19 株式会社日立製作所 光磁気記憶装置
JPS6132244A (ja) * 1984-07-24 1986-02-14 Nec Corp 光磁気記録装置
US4843600A (en) * 1985-09-13 1989-06-27 Canon Kabushiki Kaisha Recording head for magneto-optical information recording apparatus
JP2609228B2 (ja) * 1986-04-22 1997-05-14 ソニー株式会社 光磁気記録装置
JPH079717B2 (ja) * 1986-06-23 1995-02-01 キヤノン株式会社 光学ヘツド装置
JPH075551Y2 (ja) * 1986-10-13 1995-02-08 三菱電機株式会社 光磁気ヘツド
JPH0197420U (sk) * 1987-12-16 1989-06-28
US5022018A (en) * 1989-02-16 1991-06-04 Minnesota Mining And Manufacturing Company System for applying a perpendicular magnetic field to the illuminated side of a magneto-optic medium
JPH02265059A (ja) * 1989-04-06 1990-10-29 Ricoh Co Ltd 光磁気記録装置
JPH03205635A (ja) * 1989-10-17 1991-09-09 Ricoh Co Ltd 光学系駆動装置
JP2861188B2 (ja) * 1990-01-31 1999-02-24 ソニー株式会社 光磁気記録再生装置
JP2589626B2 (ja) * 1992-05-12 1997-03-12 三菱電機株式会社 光学手段駆動装置
US5383175A (en) * 1992-12-17 1995-01-17 International Business Machines Corporation Laser power control with defocusing offset during data recording

Also Published As

Publication number Publication date
JPS59148159A (ja) 1984-08-24

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