FR2355337A1 - Procede de fabrication d'un support d'information inscriptible et lisible optiquement, et support ainsi obtenu - Google Patents
Procede de fabrication d'un support d'information inscriptible et lisible optiquement, et support ainsi obtenuInfo
- Publication number
- FR2355337A1 FR2355337A1 FR7618602A FR7618602A FR2355337A1 FR 2355337 A1 FR2355337 A1 FR 2355337A1 FR 7618602 A FR7618602 A FR 7618602A FR 7618602 A FR7618602 A FR 7618602A FR 2355337 A1 FR2355337 A1 FR 2355337A1
- Authority
- FR
- France
- Prior art keywords
- disc
- dust particles
- errors due
- covers
- sandwiched
- 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.)
- Granted
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
- G11B7/24015—Air-sandwiched discs
-
- 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)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
L'invention se rapporte aux supports d'information inscriptibles par un rayonnement optique modulé et lisibles également par un rayonnement optique. Elle a plus particulièrement pour objet un procédé de fabrication de support d'information mis en oeuvre dans une atmosphère dépoussiérée qui consiste à fixer de manière étanche sur une plaque support enduite d'un matériau d'enregistrement, une plaque de protection, l'une au moins de ces deux plaques étant transparente de sorte que le rayonnement d'inscription puis le rayonnement de lecture entrant par la face extérieure de cette plaque atteigne la couche d'enregistrement Si le support est destiné à une lecture par transmission, les deux plaques sont transparentes. Les supports ainsi obtenus sont particulièrement applicables au stockage d'informations binaires en vue d'applications informatiques.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7618602A FR2355337A1 (fr) | 1976-06-18 | 1976-06-18 | Procede de fabrication d'un support d'information inscriptible et lisible optiquement, et support ainsi obtenu |
NL7706584A NL7706584A (nl) | 1976-06-18 | 1977-06-15 | Werkwijze voor het vervaardigen van een inschrijf- bare en optisch leesbare informatiedrager en aldus verkregen informatiedoager. |
DE19772727189 DE2727189A1 (de) | 1976-06-18 | 1977-06-16 | Optisch beschreibbarer und lesbarer informationsaufzeichnungstraeger und verfahren zu seiner herstellung |
JP7118877A JPS52156605A (en) | 1976-06-18 | 1977-06-17 | Data carrier and method of producing same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7618602A FR2355337A1 (fr) | 1976-06-18 | 1976-06-18 | Procede de fabrication d'un support d'information inscriptible et lisible optiquement, et support ainsi obtenu |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2355337A1 true FR2355337A1 (fr) | 1978-01-13 |
FR2355337B1 FR2355337B1 (fr) | 1979-03-23 |
Family
ID=9174600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7618602A Granted FR2355337A1 (fr) | 1976-06-18 | 1976-06-18 | Procede de fabrication d'un support d'information inscriptible et lisible optiquement, et support ainsi obtenu |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS52156605A (fr) |
DE (1) | DE2727189A1 (fr) |
FR (1) | FR2355337A1 (fr) |
NL (1) | NL7706584A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010017A1 (fr) * | 1978-09-29 | 1980-04-16 | Thomson-Csf | Disque optique protégé |
FR2464608A1 (fr) * | 1978-10-17 | 1981-03-06 | Mca Disco Vision | Support d'enregistrement d'information |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4183094A (en) * | 1978-03-20 | 1980-01-08 | Xerox Corporation | Optical storage medium using the frequency domain |
JPS6037700Y2 (ja) * | 1978-06-07 | 1985-11-11 | 三洋電機株式会社 | デイスクレコ−ドの構造 |
JPS5545166A (en) * | 1978-09-25 | 1980-03-29 | Matsushita Electric Ind Co Ltd | Recording and reproducing method for optical information |
FR2490858B1 (fr) * | 1980-09-25 | 1986-04-04 | Rca Corp | Milieu d'enregistrement optique a sensibilite variable et disque contenant de l'information, realise a l'aide d'un tel milieu |
JPS5762831A (en) * | 1980-10-02 | 1982-04-16 | Nissan Motor Co Ltd | Forging die for part having reverse gradient |
JPS5766538A (en) * | 1980-10-08 | 1982-04-22 | Toshiba Corp | Information storage medium |
EP0049821B1 (fr) * | 1980-10-09 | 1987-04-15 | Kabushiki Kaisha Toshiba | Elément d'enregistrement de données |
JPS5766539A (en) * | 1980-10-09 | 1982-04-22 | Toshiba Corp | Optical disk |
JPS5771247U (fr) * | 1980-10-17 | 1982-04-30 | ||
JPS5786173A (en) * | 1980-11-17 | 1982-05-29 | Toshiba Corp | Recorder and reproducer |
JPS5788538A (en) * | 1980-11-19 | 1982-06-02 | Toshiba Corp | Optical disc |
JPS5788537A (en) * | 1980-11-19 | 1982-06-02 | Toshiba Corp | Optical disc |
JPS5817631U (ja) * | 1981-07-23 | 1983-02-03 | 富士写真フイルム株式会社 | 光情報記録媒体 |
JPH0680541B2 (ja) * | 1982-02-22 | 1994-10-12 | 株式会社日立製作所 | 情報記録媒体 |
US4583102A (en) * | 1983-05-04 | 1986-04-15 | Matsushita Electric Industrial Co., Ltd. | Optical disc and method of manufacturing |
US4527173A (en) * | 1984-04-16 | 1985-07-02 | Eastman Kodak Company | Erasable, reusable optical recording element and method |
US4538159A (en) * | 1984-04-16 | 1985-08-27 | Eastman Kodak Company | Ceramic overcoated optical recording element |
JPS61111040U (fr) * | 1985-10-25 | 1986-07-14 | ||
JPS62141661A (ja) * | 1985-12-16 | 1987-06-25 | Ricoh Co Ltd | 光情報記録媒体 |
DE3701801A1 (de) * | 1986-01-22 | 1987-07-23 | Ricoh Kk | Optisches informationsaufzeichnungsmaterial |
JPH0433553Y2 (fr) * | 1986-05-30 | 1992-08-11 | ||
JPS6323236A (ja) * | 1987-05-21 | 1988-01-30 | Sanyo Electric Co Ltd | ディスクレコ−ドの構造 |
JPS63841A (ja) * | 1987-06-26 | 1988-01-05 | Sharp Corp | 磁気光学記憶素子 |
JPH0652589B2 (ja) * | 1990-11-27 | 1994-07-06 | 株式会社東芝 | 光学的情報記憶担体の製造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2081706A1 (fr) * | 1970-03-05 | 1971-12-10 | Energy Conversion Devices Inc |
-
1976
- 1976-06-18 FR FR7618602A patent/FR2355337A1/fr active Granted
-
1977
- 1977-06-15 NL NL7706584A patent/NL7706584A/xx not_active Application Discontinuation
- 1977-06-16 DE DE19772727189 patent/DE2727189A1/de active Pending
- 1977-06-17 JP JP7118877A patent/JPS52156605A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2081706A1 (fr) * | 1970-03-05 | 1971-12-10 | Energy Conversion Devices Inc |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010017A1 (fr) * | 1978-09-29 | 1980-04-16 | Thomson-Csf | Disque optique protégé |
FR2464608A1 (fr) * | 1978-10-17 | 1981-03-06 | Mca Disco Vision | Support d'enregistrement d'information |
Also Published As
Publication number | Publication date |
---|---|
FR2355337B1 (fr) | 1979-03-23 |
JPS52156605A (en) | 1977-12-27 |
NL7706584A (nl) | 1977-12-20 |
DE2727189A1 (de) | 1977-12-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |