JPS53148411A - Production of press master for video discs - Google Patents
Production of press master for video discsInfo
- Publication number
- JPS53148411A JPS53148411A JP6302877A JP6302877A JPS53148411A JP S53148411 A JPS53148411 A JP S53148411A JP 6302877 A JP6302877 A JP 6302877A JP 6302877 A JP6302877 A JP 6302877A JP S53148411 A JPS53148411 A JP S53148411A
- Authority
- JP
- Japan
- Prior art keywords
- production
- video discs
- press master
- make
- master
- 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.)
- Pending
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
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
PURPOSE:To make possible monitoring like Phillips/MCA system and yet make the process simpler than siad system and improve the shape of the bils of the resultant video disc by providing a metal layer on a specific thin layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6302877A JPS53148411A (en) | 1977-05-30 | 1977-05-30 | Production of press master for video discs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6302877A JPS53148411A (en) | 1977-05-30 | 1977-05-30 | Production of press master for video discs |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53148411A true JPS53148411A (en) | 1978-12-25 |
Family
ID=13217455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6302877A Pending JPS53148411A (en) | 1977-05-30 | 1977-05-30 | Production of press master for video discs |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53148411A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993025341A1 (en) * | 1992-06-10 | 1993-12-23 | Minnesota Mining And Manufacturing Company | Acousto-optical intensity control of laser beam |
JP2012511222A (en) * | 2008-12-04 | 2012-05-17 | ダグ カーソン アンド アソシエーツ,インク. | Variable track width recording compensation |
-
1977
- 1977-05-30 JP JP6302877A patent/JPS53148411A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993025341A1 (en) * | 1992-06-10 | 1993-12-23 | Minnesota Mining And Manufacturing Company | Acousto-optical intensity control of laser beam |
US5279775A (en) * | 1992-06-10 | 1994-01-18 | Iomega Corporation | Acousto-optical intensity control of laser beam during etching of optical servo information of magnetic media |
JP2012511222A (en) * | 2008-12-04 | 2012-05-17 | ダグ カーソン アンド アソシエーツ,インク. | Variable track width recording compensation |
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