CA1028060A - Method of manufacturing a master designed for the reproduction of records readable optically by diffraction - Google Patents
Method of manufacturing a master designed for the reproduction of records readable optically by diffractionInfo
- Publication number
- CA1028060A CA1028060A CA203,331A CA203331A CA1028060A CA 1028060 A CA1028060 A CA 1028060A CA 203331 A CA203331 A CA 203331A CA 1028060 A CA1028060 A CA 1028060A
- Authority
- CA
- Canada
- Prior art keywords
- diffraction
- reproduction
- manufacturing
- readable optically
- records
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title 1
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
-
- 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
-
- 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
- G11B7/0045—Recording
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7324003A FR2235449A1 (zh) | 1973-06-29 | 1973-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1028060A true CA1028060A (en) | 1978-03-14 |
Family
ID=9121822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA203,331A Expired CA1028060A (en) | 1973-06-29 | 1974-06-25 | Method of manufacturing a master designed for the reproduction of records readable optically by diffraction |
Country Status (6)
Country | Link |
---|---|
US (1) | US3875024A (zh) |
JP (1) | JPS5039101A (zh) |
CA (1) | CA1028060A (zh) |
DE (1) | DE2431252A1 (zh) |
FR (1) | FR2235449A1 (zh) |
IT (1) | IT1015451B (zh) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4305081A (en) * | 1976-03-19 | 1981-12-08 | Rca Corporation | Multilayer record blank for use in optical recording |
WO1979000404A1 (en) * | 1977-12-19 | 1979-07-12 | Eastman Kodak Co | Medium for recording by thermal deformation |
EP0044603B1 (en) * | 1978-03-27 | 1985-07-10 | Discovision Associates | Apparatus and method for writing a signal information track on a disc |
US4430401A (en) * | 1979-06-13 | 1984-02-07 | Discovision Associates | Method for producing a recording disc stamper |
US4300227A (en) * | 1979-10-17 | 1981-11-10 | Rca Corporation | Replicable optical recording medium |
US4285056A (en) * | 1979-10-17 | 1981-08-18 | Rca Corporation | Replicable optical recording medium |
JPS5814336A (ja) * | 1981-07-20 | 1983-01-27 | Toshiba Corp | 情報記憶媒体およびその製造方法 |
US4615969A (en) * | 1982-05-28 | 1986-10-07 | Energy Conversion Devices, Inc. | Method and apparatus for making a stamping master for video disk replication |
US4616237A (en) * | 1982-09-27 | 1986-10-07 | Pa Management Consultants, Ltd. | Data storage medium |
EP0147945A1 (en) * | 1983-11-21 | 1985-07-10 | Comtech Research Unit Limited | Data storage medium |
US5248990A (en) * | 1987-04-16 | 1993-09-28 | Canon Kabushiki Kaisha | Process for producing optical recording medium for optical data recording and reproduction |
US5026510A (en) * | 1988-03-17 | 1991-06-25 | Canon Kabushiki Kaisha | Mold for cast molding substrate having preformat with information pits and method of using same |
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 |
KR20010041990A (ko) | 1998-03-18 | 2001-05-25 | 레비치 유진 | 엠보싱된 다수의 발광 기록층을 가지는 광기록매체의제조방법. |
US6595306B2 (en) * | 2001-08-09 | 2003-07-22 | Crown Equipment Corporation | Supplemental walk along control for walkie/rider pallet trucks |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1513120A (en) * | 1920-06-14 | 1924-10-28 | Madsenell Corp | Phonograph record and method of producing the same |
US1448792A (en) * | 1921-08-10 | 1923-03-20 | William H Cole | Method of making master phonograph records |
US2075646A (en) * | 1933-01-28 | 1937-03-30 | Rca Corp | Method of making a record mold |
US2067502A (en) * | 1934-08-16 | 1937-01-12 | Bell Telephone Labor Inc | Art of duplicating phonograph records |
US3227634A (en) * | 1962-10-03 | 1966-01-04 | Philips Corp | Method of manufacturing moulds for pressing phonograph records |
-
1973
- 1973-06-29 FR FR7324003A patent/FR2235449A1/fr not_active Withdrawn
-
1974
- 1974-06-25 CA CA203,331A patent/CA1028060A/en not_active Expired
- 1974-06-26 US US483434A patent/US3875024A/en not_active Expired - Lifetime
- 1974-06-28 IT IT24484/74A patent/IT1015451B/it active
- 1974-06-28 DE DE2431252A patent/DE2431252A1/de active Pending
- 1974-06-29 JP JP49074937A patent/JPS5039101A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US3875024A (en) | 1975-04-01 |
FR2235449A1 (zh) | 1975-01-24 |
IT1015451B (it) | 1977-05-10 |
JPS5039101A (zh) | 1975-04-11 |
DE2431252A1 (de) | 1975-01-23 |
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