KR950701443A - 디스크형 광학 기억 매체 및 이의 제조 방법(Disi-Shaped Optical Storage Medium and Method for its Fabrication) - Google Patents

디스크형 광학 기억 매체 및 이의 제조 방법(Disi-Shaped Optical Storage Medium and Method for its Fabrication)

Info

Publication number
KR950701443A
KR950701443A KR1019940703992A KR19940703992A KR950701443A KR 950701443 A KR950701443 A KR 950701443A KR 1019940703992 A KR1019940703992 A KR 1019940703992A KR 19940703992 A KR19940703992 A KR 19940703992A KR 950701443 A KR950701443 A KR 950701443A
Authority
KR
South Korea
Prior art keywords
storage medium
optical storage
pit
lands
land
Prior art date
Application number
KR1019940703992A
Other languages
English (en)
Other versions
KR100293135B1 (ko
Inventor
쉬베 힐마르
Original Assignee
헤르만 헤메이어
소노프레스 프로둑치온스게젤사프트 퓨어 톤-운트 인포마치온스트래거 엠베하
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 헤르만 헤메이어, 소노프레스 프로둑치온스게젤사프트 퓨어 톤-운트 인포마치온스트래거 엠베하 filed Critical 헤르만 헤메이어
Publication of KR950701443A publication Critical patent/KR950701443A/ko
Application granted granted Critical
Publication of KR100293135B1 publication Critical patent/KR100293135B1/ko

Links

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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/281—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs by changing the physical properties of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Packaging For Recording Disks (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Holo Graphy (AREA)

Abstract

간섭의 원리에 따라 레이저 빔으로 가능한 피트와 랜드 형태로 나선형 트랙을 따라 피트 및 랜드의 시퀀스로 순차적으로 기억된 2진 정보용 디스크형 광학 기억 매체는 선택된 전체 랜드 수가 피트의 깊이와 비교해 얕은 압축부로 광학 기준 표면에 형성되어 혼동을 일으키거나 불법 복사를 방지하도록 식별될 수 있다. 기본적으로 임의의 형태인 이 식별 특징은 매우 작아 전자 현매경으로만 식별할 수 있고, 그리고 너무 커 확산 광에서 육안으로 검지될 수 있다.

Description

디스크형 광학 기억 매체 및 이의 제조 방법(Disi-Shaped Optical Storage Medium and Method for its Fabrication)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 식별 특징 "CD"를 갖춘 컴팩트 디스크의 상면도.

Claims (6)

  1. 피트 및 랜드 길이는 서로 독립적이며 간섭의 원리에 따라 트랙킹되어 촛점이 맞추어진 레이저 빔에 의해 판독 가능한 기억된 2진 값을 나타내며, 평탄한 광학 기준 표면에 나선형 트랙을 따라 피트 및 랜드의 시퀀스(a sequence of pits and lands)로서 순차적으로 기억되어 있는 2진 정보용 디스트 광학 기억 매체에 있어서, 선택된 전체 랜드 수는 피트(21)의 깊이와 비교하여 광학 기준 표면에 얕은 압축부(depression;23)로 형성되어 있는 것을 특징으로 하는 디스크형 광학 기억 매체.
  2. 제1항에 있서, 트랙킹 방향 및/또는 인접하는 반경 방향으로 압축부로 순차적으로 형성된 상기 랜드(23)는 육안으로 보이는 패턴(macroscopic pattern)으로 구성되는 것을 특징으로 하는 디스크형 광학 기억 매체.
  3. 제1항 또는 제2항에 있어서, 압축부로 형성된 상기 랜드(23)는 U자형 단면프로필 및 상기 피트(21)의 폭에 거의 대응하는 폭을 갖는 것을 특징으로 하는 디스크형 광학 기억 매체.
  4. 제1항 또는 제2항에 있어서, 압축부로 형성된 상기 랜드는 V자형 단면 프로필 및 상기 피트보다 작은 폭을 갖는 것을 특징으로 하는 디스크형 광학 기억 매체.
  5. 제1항 내지 제4항에 있어서, 압축부로 형성된 상기 랜드(23)의 깊이는 상기 피트(21)깊이의 30% 미만인 것을 특징으로 하는 디스크형 광학 기억 매체.
  6. 생성될 피트 영역에서 레이저로써 글래스 마슬의 포트레지스트를 트랙방향으로 노출시키고 그리고 포토레지스트가 노출위치에 상기 압축부를 드러낼 때가지 후속하는 글래스 마스터를 현상함으로써 제1항 내지 제5항중 어느 한 항에 따른 디스크형 광학 기억 매체용 글래스 마스터(glass master)의 제조 방법에 있어서, 상기 광학 기준 표면에 압축부로 형성될 상기 랜드의 영역에서 레이저 빔의 세기는 기억 매체를 판독하는데 필요한 기억 영역 내에서 상기 피트를 발생하는 세기 값의 최대 50%에 이르는 값으로 감소되고, 이 영역의 외부는 기술적으로 가능한 최소값과 상기 피트를 발생하는 세기 값의 100% 사이에서 배치되는 것을 특징으로 하는 디스크형 광학 기억 매체용 글래스 마스터의 제조 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940703992A 1993-04-08 1994-03-24 디스크형광학기억매체및 그제조방법 KR100293135B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4311683A DE4311683C2 (de) 1993-04-08 1993-04-08 Plattenförmiger optischer Speicher und Verfahren zu dessen Herstellung
DEP4311683.3 1993-04-08
PCT/EP1994/000944 WO1994024665A1 (de) 1993-04-08 1994-03-24 Plattenförmiger optischer speicher und verfahren zu dessen herstellung

Publications (2)

Publication Number Publication Date
KR950701443A true KR950701443A (ko) 1995-03-23
KR100293135B1 KR100293135B1 (ko) 2001-06-15

Family

ID=6485125

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940703992A KR100293135B1 (ko) 1993-04-08 1994-03-24 디스크형광학기억매체및 그제조방법

Country Status (19)

Country Link
US (1) US5608718A (ko)
EP (1) EP0645042B1 (ko)
JP (1) JPH07507899A (ko)
KR (1) KR100293135B1 (ko)
CN (1) CN1061157C (ko)
AT (1) ATE176735T1 (ko)
AU (1) AU671740B2 (ko)
BR (1) BR9404394A (ko)
CA (1) CA2135279C (ko)
CZ (1) CZ286493B6 (ko)
DE (2) DE4311683C2 (ko)
ES (1) ES2130414T3 (ko)
GR (1) GR3029481T3 (ko)
HK (1) HK1008706A1 (ko)
HU (1) HU215322B (ko)
PL (1) PL173341B1 (ko)
RU (1) RU2124764C1 (ko)
SG (1) SG44688A1 (ko)
WO (1) WO1994024665A1 (ko)

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ES2130414T3 (es) 1999-07-01
GR3029481T3 (en) 1999-05-28
EP0645042B1 (de) 1999-02-10
JPH07507899A (ja) 1995-08-31
PL173341B1 (pl) 1998-02-27
RU2124764C1 (ru) 1999-01-10
US5608718A (en) 1997-03-04
CN1103539A (zh) 1995-06-07
AU671740B2 (en) 1996-09-05
CN1061157C (zh) 2001-01-24
BR9404394A (pt) 1999-06-15
ATE176735T1 (de) 1999-02-15
HUT72804A (en) 1996-05-28
AU6504994A (en) 1994-11-08
KR100293135B1 (ko) 2001-06-15
HK1008706A1 (en) 1999-05-14
CZ286493B6 (en) 2000-04-12
CA2135279C (en) 2001-08-28
DE4311683C2 (de) 1996-05-02
PL305803A1 (en) 1995-02-06
RU94046167A (ru) 1996-09-27
WO1994024665A1 (de) 1994-10-27
CA2135279A1 (en) 1994-10-09
DE4311683A1 (de) 1994-10-13
DE59407795D1 (de) 1999-03-25
SG44688A1 (en) 1997-12-19
EP0645042A1 (de) 1995-03-29
HU215322B (hu) 1998-11-30
CZ274594A3 (en) 1995-12-13

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