KR910003601A - 광학 디스크매체 - Google Patents

광학 디스크매체 Download PDF

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Publication number
KR910003601A
KR910003601A KR1019890010246A KR890010246A KR910003601A KR 910003601 A KR910003601 A KR 910003601A KR 1019890010246 A KR1019890010246 A KR 1019890010246A KR 890010246 A KR890010246 A KR 890010246A KR 910003601 A KR910003601 A KR 910003601A
Authority
KR
South Korea
Prior art keywords
film
optical disc
optical
disc medium
medium according
Prior art date
Application number
KR1019890010246A
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English (en)
Other versions
KR930008455B1 (ko
Inventor
야스유끼 고도
나가아끼 고시노
겐니찌 우쓰미
이와오 쓰가와
마사히로 나까다
Original Assignee
야마모도 다꾸마
후지쓰 가부시끼가이샤
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.)
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Publication date
Application filed by 야마모도 다꾸마, 후지쓰 가부시끼가이샤 filed Critical 야마모도 다꾸마
Publication of KR910003601A publication Critical patent/KR910003601A/ko
Application granted granted Critical
Publication of KR930008455B1 publication Critical patent/KR930008455B1/ko

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Classifications

    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
    • 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
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055—Erasing
    • G11B7/00557—Erasing involving phase-change media

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

내용 없음.

Description

광학 디스크매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 광학 디스크 매체의 요부 구성도,
제2도는 정보가 기록되거나 기록되지 않은 상태(소거상태)에서의 반사율과 광학인터퍼런스막 3의 두께와의 관계를 나타낸 도면,
제3도는 본 발명에 의한 구성의 일실시예를 나타낸 도면.

Claims (12)

  1. 레이저빔으로 정보를 기입 및 판독하는 소거가능 광학디스크 매체에서, (1) 위상전이형 정보기록막, (2) 광학 인터퍼런스막, (3) 광학 반사막을 포함하되, 이 막들이 상기 매체의 반사율이 정보 기록전에 더 크고, 상기 매체의 기록부위의 반사율이 기록후에 더 작아지게끔 투명기판위에 상기 나열순으로 형성되는 것이 특징인 소거 가능 광학 디스크매체.
  2. 제1항에서, 정보기록막이 위상전이형 박막층이고, 이의 결정상태가 레이저 조사에 의해 변화되는 것이 특징인 광학 디스크매체.
  3. 제1항에서, 정보 기록막의 주성분이 결정-결정 위상전이형 재료인 것을 특징으로 하는 광학디스크매체.
  4. 제1항에서, 정보기록막이 5~20nm의 막두께를 갖는 박막으로 구성되는 것이 특징인 광학디스크매체.
  5. 제1항에서, 정보기록막의 주성분이 In-Sb, Te-Ge 또는 In-Sb, Te-Ge을 주성분으로 하는 합금인 것이 특징인 광학디스크매체.
  6. 제1항에서, 광학 인터퍼런스막은 그 사용값 막두께에서 투명한 무기박막 또는 유기 박막인 것이 특징인 광학 디스크 매체.
  7. 제1항에서, 광학반사막의 반사율이 70%이상이며, 정보기록전, 후의 기록부위의 반사율의 차가 20%이하인 것이 특징인 광학디스크매체.
  8. 제1항에서, 광학 인터퍼런스막의 두께 d(nm)가
    (상기식에서,은 광학 인터퍼런스막 재료의 굴절률, N은 0 또는 양의 정수)인 것을 특징으로 하는 광학디스크 매체.
  9. 제1항에서, 광학 인터퍼런스막의 주성분이 ZnS, SiO2, MgF2또는 MgO인 것이 특징인 광학디스크 매체.
  10. 제1항에서, 광학 인터퍼런스막의 주성분이 실리콘수지, 수테아린산 타입 염, 프탈로시아닌 및 실릴화 폴리 메틸실세스퀴옥산인 것이 특징인 광학디스크매체.
  11. 제1항에 있어서, 광학반사막의 반사율이 70%이상인 것이 특징인 광학디스크 매체.
  12. 제1항에 있어서, 광학반사막이 Au, Ag, Cu 또는 Al를 주성분으로 하는 금속박막인 것이 특징인 광학디스크 매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890010246A 1988-07-22 1989-07-20 광학디스크 매체 KR930008455B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63-181699 1988-07-22
JP63181699A JP2538647B2 (ja) 1988-07-22 1988-07-22 光ディスク媒体

Publications (2)

Publication Number Publication Date
KR910003601A true KR910003601A (ko) 1991-02-27
KR930008455B1 KR930008455B1 (ko) 1993-09-04

Family

ID=16105316

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890010246A KR930008455B1 (ko) 1988-07-22 1989-07-20 광학디스크 매체

Country Status (7)

Country Link
US (1) US5144618A (ko)
EP (1) EP0352105B1 (ko)
JP (1) JP2538647B2 (ko)
KR (1) KR930008455B1 (ko)
CN (1) CN1014750B (ko)
AU (1) AU608991B2 (ko)
DE (1) DE68915630T2 (ko)

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* Cited by examiner, † Cited by third party
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JPH0827979B2 (ja) * 1988-09-24 1996-03-21 太陽誘電株式会社 光情報記録媒体
JPH02113453A (ja) * 1988-10-24 1990-04-25 Hitachi Ltd 光ディスク
JP2804130B2 (ja) * 1989-12-06 1998-09-24 株式会社日立製作所 情報処理装置
JPH03201228A (ja) * 1989-12-27 1991-09-03 Victor Co Of Japan Ltd 光記録媒体
JP2750018B2 (ja) * 1990-07-13 1998-05-13 インターナショナル・ビジネス・マシーンズ・コーポレイション 光学記録媒体及び光学データ記録ディスクドライブシステム
EP0549024B1 (en) * 1991-12-12 1997-11-19 Koninklijke Philips Electronics N.V. Optical record carrier
US5419937A (en) * 1991-12-12 1995-05-30 U.S. Philips Corporation Optical record carrier
JP3080739B2 (ja) * 1991-12-20 2000-08-28 日本電気株式会社 光学的情報記録媒体および光学的情報記録消去再生方法
EP0613128A1 (en) * 1993-02-18 1994-08-31 Koninklijke Philips Electronics N.V. Optical information carrier
SG52438A1 (en) * 1993-02-18 1998-09-28 Philips Electronics Nv Optical information carrier
BE1006921A3 (nl) * 1993-03-16 1995-01-24 Koninkl Philips Electronics Nv Inrichting voor het schrijven van informatie.
JP2850754B2 (ja) * 1994-05-20 1999-01-27 日本電気株式会社 相変化型光ディスク
WO1996012053A1 (en) * 1994-10-13 1996-04-25 Catachem, Inc. Method for minimizing solvent degradation and corrosion in amine solvent treating systems
JP2785763B2 (ja) * 1995-09-27 1998-08-13 日本電気株式会社 相変化光ディスク
US5809006A (en) * 1996-05-31 1998-09-15 Cagent Technologies, Inc. Optical disk with copy protection, and apparatus and method for recording and reproducing same
KR20000075827A (ko) * 1997-02-28 2000-12-26 야마모토 카즈모토 상변화형 광 기록 매체 및 그 제조 방법 및 그 기록 방법
FR2787619B1 (fr) * 1998-12-22 2001-08-17 Commissariat Energie Atomique Support d'enregistrement optique et procede de realisation de ce support
TWI246681B (en) * 2000-12-15 2006-01-01 Koninkl Philips Electronics Nv Optical information medium and its use
JP2004017394A (ja) 2002-06-14 2004-01-22 Tdk Corp 光記録媒体
EP1829032B1 (en) * 2004-12-13 2008-06-04 Koninklijke Philips Electronics N.V. Optical storage medium using a separate reference beam layer
EP2392006A4 (en) * 2009-01-30 2014-09-17 Univ Brigham Young OPTICAL DATA STORAGE MEDIA WITH METAL AND DARK METAL OXIDE LAYER STRUCTURE
US11744296B2 (en) 2015-12-10 2023-09-05 R. J. Reynolds Tobacco Company Smoking article

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JPS6111952A (ja) * 1984-06-27 1986-01-20 Nec Corp 光磁気記録媒体
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Also Published As

Publication number Publication date
CN1041469A (zh) 1990-04-18
JP2538647B2 (ja) 1996-09-25
DE68915630T2 (de) 1994-09-15
KR930008455B1 (ko) 1993-09-04
JPH0233738A (ja) 1990-02-02
EP0352105B1 (en) 1994-06-01
AU608991B2 (en) 1991-04-18
US5144618A (en) 1992-09-01
CN1014750B (zh) 1991-11-13
DE68915630D1 (de) 1994-07-07
EP0352105A2 (en) 1990-01-24
EP0352105A3 (en) 1990-11-28
AU3810689A (en) 1990-02-15

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