KR970076598A - 광디스크성형장치 및 광디스크의 성형방법 - Google Patents

광디스크성형장치 및 광디스크의 성형방법 Download PDF

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Publication number
KR970076598A
KR970076598A KR1019970015245A KR19970015245A KR970076598A KR 970076598 A KR970076598 A KR 970076598A KR 1019970015245 A KR1019970015245 A KR 1019970015245A KR 19970015245 A KR19970015245 A KR 19970015245A KR 970076598 A KR970076598 A KR 970076598A
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KR
South Korea
Prior art keywords
stamper
disk
cavity
data recording
forming apparatus
Prior art date
Application number
KR1019970015245A
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English (en)
Other versions
KR100515080B1 (ko
Inventor
노부유키 아라카와
도시유키 가시와기
아사오 구로스
유지 야키야마
신스케 기시
Original Assignee
이데이 노부유키
소니 가부시기가이샤
고이케 후미로
가부시기가이샤 소니 디스크테크놀로지
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 JP10772996A external-priority patent/JPH09293279A/ja
Priority claimed from JP14499096A external-priority patent/JP3512139B2/ja
Application filed by 이데이 노부유키, 소니 가부시기가이샤, 고이케 후미로, 가부시기가이샤 소니 디스크테크놀로지 filed Critical 이데이 노부유키
Publication of KR970076598A publication Critical patent/KR970076598A/ko
Application granted granted Critical
Publication of KR100515080B1 publication Critical patent/KR100515080B1/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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C45/2632—Stampers; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C2045/2659—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs for making substrates for laminated disks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C2045/2667—Particular inner or outer peripheral portions of the substrate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/81—Sound record

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

본 발명의 광디스크성형장치는, 캐비티내에서 디스크기판을 사출성형하는 1쌍의 금형과, 최소한 한쪽의 캐비티내에 지지되어, 데이타기록면을 성형하는 스탬퍼를 구비하고, 캐비티의 스템퍼지지면의 내경측이, 데이타 기록면으로부터 디스크 두께방향 내측으로 돌출하고 있다. 종래에는, 디스크기판에 발생하는 버르(burr)에 의하여, 접합기준면의 평면도가 악화되고 있었다.

Description

광디스크성형장치 및 광디스크의 성형방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제5도는 본 실시형태에 있어서, 디스크기판의 성형상태를 나타낸 개략도.

Claims (7)

  1. 캐비티내에서 디스크기판을 사출성형하는 1쌍의 금형과, 최소한 한쪽의 금형의 캐비티내에 지지되어, 디스크상에 기록정보를 전사(轉寫)하기 위한 미세요철의 데이타기록면을 성형하는 스탬퍼를 구비하고, 상기 금형의 캐비티의 스탬퍼지지면의 내경측이, 상기 스탬퍼의 데이타기록면으로부터 디스크두께방향 내측으로 돌출하고 있는 것을 특징으로 하는 광디스크성형장치.
  2. 청구항 1에 있어서, 상기 스탬퍼지지면의 내경측이, 테이퍼진 부분 위로 디스크두께방향 내측으로 돌출하고 있는 것을 특징으로 하는 광디스크성형장치.
  3. 청구항 1에 있어서, 상기 스탬퍼가, 상기 스탬퍼지지면에 따른 형상으로 미리 성형되어 있는 것을 특징으로 하는 광디스크성형장치.
  4. 청구항 2에 있어서, 상기 스탬퍼가, 디스크성형시의 사출압력에 의하여, 상기 스탬퍼지지면에 따른 형상으로 변형되는 것을 특징으로 하는 광디스크성형장치.
  5. 캐비티내에서 디스크기판을 사출성형하는 1쌍의 금형과 최소한 한쪽의 금형의 캐비티내에 지지되어, 디스크상에 기록정보를 전사하기 위한 미세요철의 데이타기록면을 성형하는 스탬퍼를 구비하고, 상기 스탬퍼의 내경측이, 상기 데이타기록면으로부터 디스크두께방향 내측으로 둘출하고 있는 것을 특징으로 하는 광디스크 성형장치.
  6. 청구항 5에 있어서, 상기 스탬퍼가, 상기 데이타기록면이 형성된 면의 반대측으로부터 중심공을 펀칭하여 형성되는 것을 특징으로 하는 광디스크성형장치.
  7. 캐비티내에서 디스크기판을 사출성형하는 1쌍의 금형의 최소한 한쪽의 금형의 캐비티내에, 디스크상에 기록정보를 전사하기 위한 미세요철의 데이타기록면을 성형하는 스탬퍼를 지지하고, 디스크성형시의 사출압력에 의하여, 상기 스탬퍼의 내경측을 상기 데이터기록면으로부터 디스크두께방향 내측으로 돌출시켜, 디스크기판을 사출성형하도록 한 것을 특징으로 하는 광디스크 성형방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970015245A 1996-04-26 1997-04-24 광디스크성형장치및광디스크의성형방법 KR100515080B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10772996A JPH09293279A (ja) 1996-04-26 1996-04-26 光学記録媒体の基板の射出成形用スタンパーとその製造方法
JP96-107729 1996-04-26
JP14499096A JP3512139B2 (ja) 1996-05-15 1996-05-15 光ディスク成形装置及び光ディスクの成形方法
JP96-144990 1996-05-15

Publications (2)

Publication Number Publication Date
KR970076598A true KR970076598A (ko) 1997-12-12
KR100515080B1 KR100515080B1 (ko) 2005-11-25

Family

ID=26447743

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Application Number Title Priority Date Filing Date
KR1019970015245A KR100515080B1 (ko) 1996-04-26 1997-04-24 광디스크성형장치및광디스크의성형방법

Country Status (5)

Country Link
US (1) US5852329A (ko)
EP (1) EP0803339B1 (ko)
KR (1) KR100515080B1 (ko)
CN (1) CN1127727C (ko)
DE (1) DE69705577T2 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10275362A (ja) * 1997-03-31 1998-10-13 Toshiba Emi Ltd 光学式貼り合わせディスク及びその成形金型
JP2003501776A (ja) * 1999-06-07 2003-01-14 イメイション・コーポレイション エッジウェッジを減らす光ディスク金型工具
JP3749470B2 (ja) * 2001-11-07 2006-03-01 Ｔｄｋ株式会社 ディスク状基板材料の製造方法
NL1028737C2 (nl) * 2005-04-11 2006-10-12 Axxicon Moulds Eindhoven Bv Matrijssamenstel en/of stamper.
GB0805904D0 (en) * 2008-04-01 2008-05-07 Reckitt Benckiser Nv Injection moulding process
CN203901640U (zh) * 2014-06-20 2014-10-29 林喜斌 一种数码光盘基片的成型模具

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067124A (ja) * 1983-09-22 1985-04-17 Daicel Chem Ind Ltd 高密度情報記録担体用プラスチックディスクの射出成形用スタンパー
JPS62105616A (ja) * 1985-11-01 1987-05-16 Daicel Chem Ind Ltd 光デイスクの射出成形用金型
FR2601287B1 (fr) * 1986-07-08 1989-02-24 Nacryl Sa Procede de fabrication d'articles de mercerie par injection dans un bosselage forme a partir d'au moins deux demi-bosselages mobiles menages dans les parties mobiles d'un moule et son moule pour la mise en oeuvre.
JPH0675888B2 (ja) * 1986-11-28 1994-09-28 ソニー株式会社 デイスクの射出成形方法
JPH01300442A (ja) * 1988-05-30 1989-12-04 Matsushita Electric Ind Co Ltd 光ディスク基板の製造方法
JP2642158B2 (ja) * 1988-08-16 1997-08-20 住友重機械工業株式会社 光ディスク基板成形用金型
JPH0556420A (ja) * 1991-06-21 1993-03-05 Oki Electric Ind Co Ltd 画像符号化伝送レート制御方式

Also Published As

Publication number Publication date
CN1127727C (zh) 2003-11-12
KR100515080B1 (ko) 2005-11-25
EP0803339A1 (en) 1997-10-29
DE69705577T2 (de) 2002-06-06
DE69705577D1 (de) 2001-08-16
EP0803339B1 (en) 2001-07-11
CN1176455A (zh) 1998-03-18
US5852329A (en) 1998-12-22

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