JPH0449177B2 - - Google Patents

Info

Publication number
JPH0449177B2
JPH0449177B2 JP58182122A JP18212283A JPH0449177B2 JP H0449177 B2 JPH0449177 B2 JP H0449177B2 JP 58182122 A JP58182122 A JP 58182122A JP 18212283 A JP18212283 A JP 18212283A JP H0449177 B2 JPH0449177 B2 JP H0449177B2
Authority
JP
Japan
Prior art keywords
digital signal
molding
disk
manufacturing
diameter
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP58182122A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6074136A (ja
Inventor
Shuichi Obata
Koichi Azuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP58182122A priority Critical patent/JPS6074136A/ja
Publication of JPS6074136A publication Critical patent/JPS6074136A/ja
Publication of JPH0449177B2 publication Critical patent/JPH0449177B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
    • B29D17/005—Producing optically read record carriers, e.g. optical 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
    • 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
    • G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP58182122A 1983-09-29 1983-09-29 デイジタル信号記録再生デイスク及びその製造法 Granted JPS6074136A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58182122A JPS6074136A (ja) 1983-09-29 1983-09-29 デイジタル信号記録再生デイスク及びその製造法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58182122A JPS6074136A (ja) 1983-09-29 1983-09-29 デイジタル信号記録再生デイスク及びその製造法

Publications (2)

Publication Number Publication Date
JPS6074136A JPS6074136A (ja) 1985-04-26
JPH0449177B2 true JPH0449177B2 (zh) 1992-08-10

Family

ID=16112711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58182122A Granted JPS6074136A (ja) 1983-09-29 1983-09-29 デイジタル信号記録再生デイスク及びその製造法

Country Status (1)

Country Link
JP (1) JPS6074136A (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN1284161C (zh) * 2002-08-09 2006-11-08 索尼株式会社 光盘

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047255A (ja) * 1983-08-25 1985-03-14 C B S Sony Rekoode Kk 情報原盤の製造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047255A (ja) * 1983-08-25 1985-03-14 C B S Sony Rekoode Kk 情報原盤の製造方法

Also Published As

Publication number Publication date
JPS6074136A (ja) 1985-04-26

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