KR890015281A - Optical or magneto-optical data systems - Google Patents

Optical or magneto-optical data systems Download PDF

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Publication number
KR890015281A
KR890015281A KR1019890003147A KR890003147A KR890015281A KR 890015281 A KR890015281 A KR 890015281A KR 1019890003147 A KR1019890003147 A KR 1019890003147A KR 890003147 A KR890003147 A KR 890003147A KR 890015281 A KR890015281 A KR 890015281A
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KR
South Korea
Prior art keywords
optical
medium
light
head
precision
Prior art date
Application number
KR1019890003147A
Other languages
Korean (ko)
Inventor
퍼블유 판스워드 스테핀
알 도드 데이비드
로버트 페레라 슬로보단
존 스탈 케이
Original Assignee
임페리알 케미칼 인더스트리스 피엘씨
베르노울리 옵티칼 시스템즈 캄파니
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
Priority claimed from US07/167,652 external-priority patent/US5012463A/en
Application filed by 임페리알 케미칼 인더스트리스 피엘씨, 베르노울리 옵티칼 시스템즈 캄파니 filed Critical 임페리알 케미칼 인더스트리스 피엘씨
Publication of KR890015281A publication Critical patent/KR890015281A/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
    • 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
    • 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
    • G11B11/10541—Heads for reproducing
    • G11B11/10543—Heads for reproducing using optical beam of radiation
    • 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
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10552—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
    • G11B11/10554—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base the transducers being disposed on the same side of the carrier
    • 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
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/1058—Flying heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/62—Maintaining desired spacing between record carrier and head
    • G11B15/64—Maintaining desired spacing between record carrier and head by fluid-dynamic spacing
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • G11B7/0031—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent using a rotating head, e.g. helicoidal recording
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

내용 없음No content

Description

광 또는 자기-광 데이타 시스템Optical or magneto-optical data systems

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 본 발명에 따른 광 정보 저장 시스템의 사시도. 제 3 도는 제 1 도에 도시된 저장 시스템 일부분의 사시도. 제 6 도는 제 3 도에 도시된 광성분들의 개략도.1 is a perspective view of an optical information storage system according to the present invention. 3 is a perspective view of a portion of the storage system shown in FIG. 6 is a schematic diagram of the light components shown in FIG.

Claims (2)

가요성의 매체상에 집중 광을 제공하고 상기 매체로 부터 반사된 광을 받는 광 리드(read)/라이트(write)헤드, 상기 가요성의 매체에 근접하여 배치되고 광 헤드에 연결되거나 합체된 정밀 고정수단을 포함하고, 상기 정밀 고정수단은, 광 헤드가 상기 매체에 집중된 광을 유지시키기 위해 매체를 향해 또는 그로부터 멀어지게 실질적으로 이동될 필요가 없도록 요구되는 위치에 가요성의 매체를 고정화시키도록 구성된, 가요성의 광 또는 자기-광 매체에 그리고 그로부터 데이타를 리드/라이트 하는 광/리드/라이트 저장 시스템.An optical read / write head that provides focused light on the flexible medium and receives light reflected from the medium, a precision fixation means disposed in proximity to or integrated with the flexible medium Wherein the precision fastening means is configured to immobilize the flexible medium in a required position such that the optical head does not need to be moved substantially towards or away from the medium to maintain the light focused on the medium. An optical / lead / light storage system that reads / writes data to and from sexual or magneto-optical media. 가요성의 매체에 집중 광을 전달하고 상기 매체로 부터 수집된 광을 탐지받는 광 리드/라이트 헤드와, 상기 매체에 근접하여 배치되어 있으며 상기 광 헤드에 연결되거나 합체된 정밀 고정수단을 포함하고, 상기 정밀 고정수단은 매체에 집중된 광을 광을 유지시키기 위하여 상기 광 헤드가 매체를 향해 또는 그로부터 멀어지게 실질적으로 이동될 필요가 없도록 가요성의 매체를 요구되는 위치에 고정화시키도록 구성된, 가요성의 광 또는 자기-광 매체에 그리고 그로부터 데이타를 리드/라이트하는 광/리드/라이트 저장 시스템.An optical lead / light head that transmits concentrated light to the flexible medium and receives light collected from the medium, and precision fixing means disposed in proximity to or integrated with the optical head, The precision fixing means is configured to fix the flexible medium in the required position such that the optical head does not need to be moved substantially towards or away from the medium to retain the light focused on the medium. An optical / lead / light storage system that reads / writes data to and from optical media. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890003147A 1988-03-14 1989-03-14 Optical or magneto-optical data systems KR890015281A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16765988A 1988-03-14 1988-03-14
GB7/167652 1988-03-14
US07/167,652 US5012463A (en) 1988-03-14 1988-03-14 Optical read/write storage system for flexible media having bernoulli stabilization at the optical head
GB7/167659 1988-03-14

Publications (1)

Publication Number Publication Date
KR890015281A true KR890015281A (en) 1989-10-28

Family

ID=26863354

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890003147A KR890015281A (en) 1988-03-14 1989-03-14 Optical or magneto-optical data systems

Country Status (12)

Country Link
JP (1) JPH0210568A (en)
KR (1) KR890015281A (en)
BR (1) BR8901169A (en)
DE (1) DE3908150A1 (en)
ES (1) ES2013115A6 (en)
FI (1) FI891202A (en)
FR (1) FR2628565B1 (en)
GB (1) GB2216710B (en)
IL (1) IL89579A0 (en)
NL (1) NL8900611A (en)
NO (1) NO891075L (en)
SE (1) SE8900879L (en)

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JPH08315462A (en) * 1995-05-22 1996-11-29 Sony Corp Magnetic head device, tape cartridge and recording/ reproducing device
SG101448A1 (en) * 2001-05-08 2004-01-30 Sony Electronics Singapore Pte A disk drive
US7164629B2 (en) 2002-01-22 2007-01-16 Ricoh Company, Ltd. Method of controlling an optical disk apparatus

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Also Published As

Publication number Publication date
FI891202A0 (en) 1989-03-14
NL8900611A (en) 1989-10-02
FR2628565A1 (en) 1989-09-15
SE8900879L (en) 1989-09-15
BR8901169A (en) 1989-10-31
FR2628565B1 (en) 1996-05-15
NO891075D0 (en) 1989-03-13
JPH0210568A (en) 1990-01-16
FI891202A (en) 1989-09-15
DE3908150A1 (en) 1989-11-30
ES2013115A6 (en) 1990-04-16
IL89579A0 (en) 1989-09-10
GB8905108D0 (en) 1989-04-19
GB2216710B (en) 1992-09-02
GB2216710A (en) 1989-10-11
NO891075L (en) 1989-09-15
SE8900879D0 (en) 1989-03-13

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