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JPS6414757A - Method for recording magneto-optical recording medium - Google Patents

Method for recording magneto-optical recording medium

Info

Publication number
JPS6414757A
JPS6414757A JP16998387A JP16998387A JPS6414757A JP S6414757 A JPS6414757 A JP S6414757A JP 16998387 A JP16998387 A JP 16998387A JP 16998387 A JP16998387 A JP 16998387A JP S6414757 A JPS6414757 A JP S6414757A
Authority
JP
Japan
Prior art keywords
recording
beams
information
light intensity
light
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.)
Pending
Application number
JP16998387A
Other languages
Japanese (ja)
Inventor
Satoshi Nehashi
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP16998387A priority Critical patent/JPS6414757A/en
Publication of JPS6414757A publication Critical patent/JPS6414757A/en
Pending 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

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To overwrite information by recording the information by means in two levels while impressing one-way magnetic field to a recording film. CONSTITUTION:Beams radiated from a light source 302 are focused on the recording film 301 by an objective lens 312 through a beam splitter 314 and a prism 313 and the reflected beams are photoelectrically converted by a light receiving part 303 to obtain a reproducing signal through an amplifier circuit 306. While impressing the one-way magnetic field to the recording film 301 on the recording medium at the time of recording in said magneto-optical recording, the beams are condensed to the surface of the recording film 301 and information is recorded by beams with two kinds of light intensity: 1st light intensity sufficient for completely magnetizing the irradiated part in the magnetic field impressed from the external and 2nd light intensity higher than the intensity of light for reproducing information and lower than the 1st light intensity. Consequently, records can be superposed and rapid recording operation can be attained.
JP16998387A 1987-07-08 1987-07-08 Method for recording magneto-optical recording medium Pending JPS6414757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16998387A JPS6414757A (en) 1987-07-08 1987-07-08 Method for recording magneto-optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16998387A JPS6414757A (en) 1987-07-08 1987-07-08 Method for recording magneto-optical recording medium

Publications (1)

Publication Number Publication Date
JPS6414757A true JPS6414757A (en) 1989-01-18

Family

ID=15896424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16998387A Pending JPS6414757A (en) 1987-07-08 1987-07-08 Method for recording magneto-optical recording medium

Country Status (1)

Country Link
JP (1) JPS6414757A (en)

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