JPS5740761A - Photomagnetic recorder - Google Patents

Photomagnetic recorder

Info

Publication number
JPS5740761A
JPS5740761A JP11736680A JP11736680A JPS5740761A JP S5740761 A JPS5740761 A JP S5740761A JP 11736680 A JP11736680 A JP 11736680A JP 11736680 A JP11736680 A JP 11736680A JP S5740761 A JPS5740761 A JP S5740761A
Authority
JP
Japan
Prior art keywords
bright
spot scanning
comb
waveguide
tooth
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
JP11736680A
Other languages
Japanese (ja)
Inventor
Hideaki Sato
Kazuya Matsumoto
Isao Yamaguchi
Takao Tsuji
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 JP11736680A priority Critical patent/JPS5740761A/en
Publication of JPS5740761A publication Critical patent/JPS5740761A/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)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To enable high-speed selection by reducing mechanically movable parts, by arraying bright-spot scanning elements, utilizing ultrasonic surface elastic waves, in the radius direction of a disk. CONSTITUTION:Parallel laser light is guided as luminous flux into a waveguide through a prism coupler and deflected by being diffracted by an ultrasonic elastic wave excited by comb-tooth-shaped electrodes in the waveguide, thereby forming bright spots on a flank through a thin-film lens. The frequency of a high-frequency voltage applied to the comb-tooth-shaped electrodes is varied for bright-spot scanning. An array 38 of bright-spot scanning element having the said constitution (not shown in the figure) (See Patent Appl. No.1 Sho 55-12939) is arranged close to a magnetic disk 31 and a magnetic field generating element 33 is driven by a signal source 34 over irradiation with light, thereby recording a signal at a scanning position controlled by a controller 32.
JP11736680A 1980-08-26 1980-08-26 Photomagnetic recorder Pending JPS5740761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11736680A JPS5740761A (en) 1980-08-26 1980-08-26 Photomagnetic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11736680A JPS5740761A (en) 1980-08-26 1980-08-26 Photomagnetic recorder

Publications (1)

Publication Number Publication Date
JPS5740761A true JPS5740761A (en) 1982-03-06

Family

ID=14709878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11736680A Pending JPS5740761A (en) 1980-08-26 1980-08-26 Photomagnetic recorder

Country Status (1)

Country Link
JP (1) JPS5740761A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938951A (en) * 1982-08-27 1984-03-03 Matsushita Electric Ind Co Ltd Photomagnetic recording and reproducing device
EP0126596A2 (en) * 1983-05-23 1984-11-28 Xerox Corporation Magneto-optic recording apparatus
US4750159A (en) * 1985-10-02 1988-06-07 Olympus Optical Co., Ltd. Apparatus for generating magnetic field in a magneto-optic recording/reproducing system
JPS63163949U (en) * 1987-04-15 1988-10-26
US5140568A (en) * 1988-08-12 1992-08-18 Olympus Optical Co., Ltd. Photomagnetic recording and erasing apparatus having magnetic field generating device including a coil and a recording media facing member which extends beyond the coil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846235A (en) * 1971-10-13 1973-07-02
JPS5180134A (en) * 1975-01-08 1976-07-13 Yoshifumi Sakurai

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846235A (en) * 1971-10-13 1973-07-02
JPS5180134A (en) * 1975-01-08 1976-07-13 Yoshifumi Sakurai

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938951A (en) * 1982-08-27 1984-03-03 Matsushita Electric Ind Co Ltd Photomagnetic recording and reproducing device
EP0126596A2 (en) * 1983-05-23 1984-11-28 Xerox Corporation Magneto-optic recording apparatus
EP0126596A3 (en) * 1983-05-23 1987-07-15 Xerox Corporation Magneto-optic recording apparatus
US4750159A (en) * 1985-10-02 1988-06-07 Olympus Optical Co., Ltd. Apparatus for generating magnetic field in a magneto-optic recording/reproducing system
JPS63163949U (en) * 1987-04-15 1988-10-26
US5140568A (en) * 1988-08-12 1992-08-18 Olympus Optical Co., Ltd. Photomagnetic recording and erasing apparatus having magnetic field generating device including a coil and a recording media facing member which extends beyond the coil

Similar Documents

Publication Publication Date Title
US4425023A (en) Beam spot scanning device
US5157650A (en) Optical recording apparatus
KR920701960A (en) Magneto-optical multitrack lead heads
JPS5740761A (en) Photomagnetic recorder
JPS57133503A (en) Optical and magnetic recorder and reproducer
JPS6425015A (en) Light spectrum analyzer
MY106490A (en) Magneto-optical recording apparatus
DE3684624D1 (en) OPTICAL FIBER WITH MULTIPLE WINGS AS ACOUSTO OPTICAL FREQUENCY SHIFTER.
JPS5767956A (en) Recorder
EP0192433B1 (en) Optical head for optical data storage and readout
GB1356980A (en) Magneto-optical data stores
JPS56107217A (en) Calescence point scanning element
JPS56111140A (en) Scanning type magnetic recording reading head
JPH01107213A (en) Optical waveguide element
JPS57195389A (en) Optical recording medium
JPS59165021A (en) Optical switch
JPS58199466A (en) Optical information processor
JPS58156919A (en) Acoustooptic optical modulator
EP0490013A1 (en) Electro-optical scanner
JPS6452240A (en) Magneto-optical recording and reproducing device
JPH0778587B2 (en) Optical scanning recorder
JPS56163529A (en) Controller for light converging position
SU801085A1 (en) Magnetic tape guiding device
KR100230226B1 (en) Light beam modulation method and recording and reproducing optical pickup thereof
JPS6423203A (en) Optical waveguide element