JPS6462850A - Magneto-optical head - Google Patents

Magneto-optical head

Info

Publication number
JPS6462850A
JPS6462850A JP21872787A JP21872787A JPS6462850A JP S6462850 A JPS6462850 A JP S6462850A JP 21872787 A JP21872787 A JP 21872787A JP 21872787 A JP21872787 A JP 21872787A JP S6462850 A JPS6462850 A JP S6462850A
Authority
JP
Japan
Prior art keywords
coil
slider
magneto
objective lens
magnetic field
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
JP21872787A
Other languages
Japanese (ja)
Inventor
Junichi Ichihara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP21872787A priority Critical patent/JPS6462850A/en
Publication of JPS6462850A publication Critical patent/JPS6462850A/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
    • 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
    • G11B11/10532—Heads
    • G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
    • G11B11/10536—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording using thermic beams, e.g. lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To miniaturize a whole constitution and to make it suitable to the recording of a high frequency signal, by providing a special slider at the position opposite to an objective lens and mounting a coil for impressing a magnetic field to impress a magnetic field to a disk at the slider. CONSTITUTION:A magneto-optical head 20 is composed of an objective lens 30, a coil 31 for impressing a magnetic field, etc., and the objective lens 30 is fixed to a cylinder 32. A slider 34 is fitted to the tip of a plate spring 35 and provided on the position opposite to the objective lens 30. The center of the slider 14 is of an aperture 36 with steps, fitted to the aperture 36, the coil 31 is mounted and floating force is operated by a fluid dynamic pressure due to an air flow 37 of the upper surface of a disk 22 at the slider 34. Thus, the coil 31 can be made very close to a magneto-optical disk 22 and therefore, the coil 31 can be miniaturized and the whole of the magneto-optical head can be miniaturized. Accompanying this, the head is made suitable to the recording of a high frequency signal.
JP21872787A 1987-09-01 1987-09-01 Magneto-optical head Pending JPS6462850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21872787A JPS6462850A (en) 1987-09-01 1987-09-01 Magneto-optical head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21872787A JPS6462850A (en) 1987-09-01 1987-09-01 Magneto-optical head

Publications (1)

Publication Number Publication Date
JPS6462850A true JPS6462850A (en) 1989-03-09

Family

ID=16724488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21872787A Pending JPS6462850A (en) 1987-09-01 1987-09-01 Magneto-optical head

Country Status (1)

Country Link
JP (1) JPS6462850A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03260936A (en) * 1990-03-09 1991-11-20 Fujitsu Ltd Magneto-optical disk device for magnetic field modulated overwrite
JPH0416628U (en) * 1990-05-29 1992-02-12
KR20010022150A (en) * 1997-07-23 2001-03-15 추후 Slider for optical disc data storage system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03260936A (en) * 1990-03-09 1991-11-20 Fujitsu Ltd Magneto-optical disk device for magnetic field modulated overwrite
JPH0416628U (en) * 1990-05-29 1992-02-12
KR20010022150A (en) * 1997-07-23 2001-03-15 추후 Slider for optical disc data storage system

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