KR890005690A - 광학 기록매체 및 그 제조방법 - Google Patents

광학 기록매체 및 그 제조방법 Download PDF

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KR890005690A
KR890005690A KR1019880012762A KR880012762A KR890005690A KR 890005690 A KR890005690 A KR 890005690A KR 1019880012762 A KR1019880012762 A KR 1019880012762A KR 880012762 A KR880012762 A KR 880012762A KR 890005690 A KR890005690 A KR 890005690A
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layer
light
optical
data
magneto
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KR1019880012762A
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KR960016143B1 (ko
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모리모또 야수아끼
뷔흘러 크리스챤
추커 프리트헬름
쉬뢰더 하인츠-요르크
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롤프-디이터 베르거
도이체 톰손-브란트 게엠베하
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • 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
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • G11B13/045—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties combined recording by magnetic and optic means
    • 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
    • G11B11/10595—Control of operating function
    • G11B11/10597—Adaptations for transducing various formats on the same or different carriers
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits

Abstract

내용 없음

Description

광학 기록매체 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 광학 기록매체의 제1실시예를 나타낸 횡단면도.
제2도는 원형 광검출기를 가진 본 발명에 따른 광학 기록매체의 제2실시예를 나타낸 횡단명도.
제3도는 링형 광검출기를 가진 본 발명에 따른 광학 기록매체의 제2실시예를 나타낸 횡단면도.

Claims (14)

  1. 광투과성 기판층(1)을 가진 광학 기록매체 있어서, 광투과성 기판층(1)뒤에 광반사 자기광학층(2)이 놓이고, 이층에는 한편으로는 자화와에 의해 그리고 다른한편으로는 홈, 소위 피트(3)에 의해 데이타가 기억될 수 있는 것을 특징으로 하는 광학 기록매체.
  2. 광투과성 기판층(1)을 가진 광학 기록매체 있어서, 광투과성 기판층(1)뒤에 부분적으로 광반사, 부분적으로 광투과 자기광학층(2)이 놓이고 이층에는 자화에 의해 데이타가 기억될 수 있으며, 자기광학층(2)뒤에 광투과층(10)이 놓이고 이층 뒤에 광투과층(11)이 놓이며 이층에는 홈, 소위 피트(3)에 의해 데이타가 기억될수 있는 것을 특징으로 하는 광학기록매체
  3. 광투과성 기판층(1)을 가진 광학 기록매체 있어서, 광투과성 기판층(1)뒤에 부분적으로 광반사, 부분적으로 광투과 자기광학층(2)이 놓이고 이층에는 자화에 의해 데이타가 기억될 수 있으며, 자기광학층(2)뒤에는 광투과층(10)이 놓이고 이층 홈, 소위 피트(3)에 의해 데이타가 기억될 수 있으며 피트(3)는 기록매체의 외부면에 형성되는 것을 특징으로 하는 광학기록매체
  4. 제 2 항에 있어서, a)광투과성 기판층(1) b)제 1 보호층(8) c) 자기광학층(2) d)제2보호층 (9) e)굴절율 n1을 가진 광투과층(10) f)굴절율 n2≠n1및 홈, 소위 피트(3)를 가진 광투과층(11)의 순서로 된 층구조를 가지는 것을 특징으로 하는 광학 기록매체.
  5. 제 1항, 제 2 항 또는 제 4 항에 있어서, 피트(3)의 깊이는 주사되는 빛의 파장보다 작게 선택되는 것을 특징으로 하는 광학 기록매체
  6. 제 5 항에 있어서. 홈(3)의 깊이가 주사되는 빛의 파장의 약 1/10인 것을 특징으로 하는 광학 기록매체.
  7. 제 1 항, 제 2 항 또는 제 4 항에 있어서, 홈(3)의 깊이가 주사되는 빛의 파장의 절반 또는 절반의 기수배인 것을 특징으로 하는 광학 기록매체
  8. 제 1 항, 제 2 항 또는 제 4 항에 있어서, 홈(3)의 깊이가 주사되는 빛의 파장의 약 1/4또는 1/4의 기수배인 것을 특징으로 하는 광학 기록매체
  9. 제 7항에 있어서, 기록매체에 방사되는 데이타를 스캐닝하는 빛의 일부는 자기광학층(2)에 의해 반사하고 일부는 자기광학층(2)을 통해 투과하며, 빛의 반사되는 부분은 자기 광학적으로 기억된 데이타를 포함하고 빛의 기록매체를 통해 투과하는 부분은 피트(3)에 의해 기억된 데이타를 포함하는 것은 특징으로 하는 광학 기록매체.
  10. 제 1 항에 있어서, 기록매체에 방사되는 데이타를 스캐닝하는 빛의 일부를 자기광학층(2)에 으해 반사하고 일부는 자기광학층(2)을 통해 투과하며, 빛의 반사되는 부분은 가지 광학적으로 기억된 데이타를 포함하고 빛의 기록매체를 통해 투과하는 부분은 피트(3)에 의해 기억된 데이타를 포함하며, 피트(3)는 기록매체의 외부면에 형성되는 것을 특징으로 하는 광학 기록매체
  11. 제 8 항에 있어서, 기록매체에 방사되어 데이타를 스캐닝하는 빛의 일부는 자기광학층(2)에 의해 반사하고 일부는 자기광학층(2)을 통해 투과하며, 빛의 반사되는 부분은 피트(3)에 의해 기억된 데이타를 포함하고 빛의 기록매체를 통해 투과되는 부분은 자기 광학적으로 기억된 데이타를 포함하는 것을 특징으로 하는 광학 기록매체.
  12. 제 1 항, 2항, 4항, 5항, 6항, 7항, 8항, 9항, 또는 11항에 있어서, 피트(3)는 2층의 경계에 놓이는 것을 특징으로 하는 광학 기록매체
  13. 제 1 항, 2항,3항 4항, 5항, 6항, 7항, 8항, 9항,10항,11항 또는 12항에 있어서, 자기광학층(2)에 기억된 데이타는 피트(3)에 의해 기억된 데이타와 상관관계를 이루는 부가데이타인 것을 특징으로 하는 광학기록매체.
  14. 광투과층(10)은 포토레지스트(14)에 의해 코팅되어 있고 포토레지스트(14)를 감광시킴으로써 피트패턴이 형성되며, 포토레지스트(14)가 현상되고 이때 광투과층(10) 포토레지스트(14)의 감광된 또는 감광되지 않은 부분이 용해되며, 광투과층(10)의 노출된 부분이 에칭되고 마지막 제조단계에서 광투과층(10)의 나머지 포토레지스트(14)가 에칭되는 것을 특징으로 하는 제 3도에 따른 광학 기록매체의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880012762A 1987-09-30 1988-09-30 광학 기록매체 및 그 제조방법 KR960016143B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3732875.1 1987-09-30
DE19873732875 DE3732875A1 (de) 1987-09-30 1987-09-30 Optischer aufzeichnungstraeger

Publications (2)

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KR890005690A true KR890005690A (ko) 1989-05-16
KR960016143B1 KR960016143B1 (ko) 1996-12-04

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Country Link
US (1) US5031162A (ko)
EP (1) EP0309721B1 (ko)
JP (1) JP3025272B2 (ko)
KR (1) KR960016143B1 (ko)
AT (1) ATE96932T1 (ko)
DE (2) DE3732875A1 (ko)
DK (1) DK548088A (ko)
ES (1) ES2046261T3 (ko)
HK (1) HK8796A (ko)
HU (1) HU203815B (ko)
MY (1) MY104845A (ko)

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EP0309721B1 (de) 1993-11-03
JP3025272B2 (ja) 2000-03-27
KR960016143B1 (ko) 1996-12-04
HU203815B (en) 1991-09-30
ATE96932T1 (de) 1993-11-15
US5031162A (en) 1991-07-09
HK8796A (en) 1996-01-26
HUT48404A (en) 1989-05-29
DK548088D0 (da) 1988-09-30
DE3732875A1 (de) 1989-04-20
MY104845A (en) 1994-06-30
JPH01107352A (ja) 1989-04-25
EP0309721A1 (de) 1989-04-05
DK548088A (da) 1989-03-31
DE3885402D1 (de) 1993-12-09
ES2046261T3 (es) 1994-02-01

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