FR2418514A1 - Support d'enregistrement optique de l'information - Google Patents
Support d'enregistrement optique de l'informationInfo
- Publication number
- FR2418514A1 FR2418514A1 FR7904704A FR7904704A FR2418514A1 FR 2418514 A1 FR2418514 A1 FR 2418514A1 FR 7904704 A FR7904704 A FR 7904704A FR 7904704 A FR7904704 A FR 7904704A FR 2418514 A1 FR2418514 A1 FR 2418514A1
- Authority
- FR
- France
- Prior art keywords
- information recording
- recording media
- optical information
- light
- layer
- 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
- 230000003287 optical effect Effects 0.000 title 1
- 239000000463 material Substances 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 230000035945 sensitivity Effects 0.000 abstract 2
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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/705—Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances, e.g. photodope systems
-
- 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
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
-
- 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
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24306—Metals or metalloids transition metal elements of groups 3-10
-
- 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
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
- G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
- G11B2007/2571—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 14 elements except carbon (Si, Ge, Sn, Pb)
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
- G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
- G11B2007/25715—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing oxygen
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B7/2531—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising glass
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B7/2532—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising metals
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
- G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium
-
- 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
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/165—Thermal imaging composition
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
L'invention concerne une ébauche de disque à utiliser avec un faisceau focalisé de lumière à une fréquence donnée, et qui comprend un fondement et un revêtement en un matériau présentant une sensibilité à la lumière à la fréquence donnée. Selon l'invention, une couche 15 en un matériau ayant une constante de diffusivité thermique supérieure à celle du fondement 13, est placée sur une surface s de ce dernier, une couche 19 en un matériau ayant une faible constante de diffusivité thermique par rapport à celle de la couche 15 est placée au-dessus de cette dernière, et le revêtement 17 présentant une sensibilité à la lumière à la fréquence donnée est placé au-dessus de cette dernière. L'invention s'applique notamment aux vidéodisques.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/881,023 US4189735A (en) | 1978-02-24 | 1978-02-24 | Record playback apparatus and information record therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2418514A1 true FR2418514A1 (fr) | 1979-09-21 |
FR2418514B1 FR2418514B1 (fr) | 1987-03-27 |
Family
ID=25377621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7904704A Expired FR2418514B1 (fr) | 1978-02-24 | 1979-02-23 | Support d'enregistrement optique de l'information |
Country Status (9)
Country | Link |
---|---|
US (1) | US4189735A (fr) |
JP (2) | JPS54126005A (fr) |
AU (1) | AU531122B2 (fr) |
DE (1) | DE2907193A1 (fr) |
FR (1) | FR2418514B1 (fr) |
GB (1) | GB2015770B (fr) |
HK (1) | HK77686A (fr) |
IT (1) | IT1111718B (fr) |
NL (1) | NL193334C (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2418513A1 (fr) * | 1978-02-24 | 1979-09-21 | Rca Corp | Support de stockage et de restitution d'information par voie optique |
FR2435780A1 (fr) * | 1978-09-08 | 1980-04-04 | Sumitomo Chemical Co | Support d'enregistrement et de reproduction de signaux optiques |
FR2435779A1 (fr) * | 1978-09-08 | 1980-04-04 | Matsushita Electric Ind Co Ltd | Element d'enregistrement optique |
FR2482756A1 (fr) * | 1980-05-14 | 1981-11-20 | Rca Corp | Disque contenant de l'information et procede pour y enregistrer et en effacer l'information de facon reversible |
EP0120539A1 (fr) * | 1983-03-28 | 1984-10-03 | Koninklijke Philips Electronics N.V. | Disque d'enregistrement optique |
EP0128616A1 (fr) * | 1983-06-02 | 1984-12-19 | Optical Storage International Holland | Elément d'enregistrement optique |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7903915A (nl) * | 1979-05-18 | 1980-11-20 | Philips Nv | Informatieregistratieelement. |
JPS5674844A (en) * | 1979-11-21 | 1981-06-20 | Fuji Photo Film Co Ltd | Magnetic recording medium |
JPS57169996A (en) * | 1981-04-09 | 1982-10-19 | Sharp Corp | Magnetooptic storage element |
US4470053A (en) * | 1981-02-13 | 1984-09-04 | Minnesota Mining And Manufacturing Company | Protuberant optical recording medium |
US4460636A (en) * | 1981-03-27 | 1984-07-17 | Sony Corporation | Optical information record member |
JPH07118096B2 (ja) * | 1987-01-29 | 1995-12-18 | 松下電器産業株式会社 | 光学情報記録担体 |
JPH01159839A (ja) * | 1987-12-16 | 1989-06-22 | Fuji Electric Co Ltd | 光記録媒体 |
JPH03228240A (ja) * | 1990-09-21 | 1991-10-09 | Sharp Corp | 磁気光学記憶素子 |
EP0498657A3 (en) * | 1991-02-08 | 1993-03-03 | Canon Kabushiki Kaisha | Optical recording medium, method of reproducing recorded data of optical recording medium, and system for reproducing recorded data of optical recording medium |
JPH05128588A (ja) * | 1991-05-16 | 1993-05-25 | Canon Inc | 光記録媒体、光記録方法及び再生方法、情報書込み装置及び情報レコードの再生装置 |
DE69320422T2 (de) * | 1992-06-18 | 1999-01-28 | Canon Kk | Optisches Aufzeichnungsmedium, Informationsaufzeichnungsmethode und Informationswiedergabemethode |
US5397684A (en) * | 1993-04-27 | 1995-03-14 | International Business Machines Corporation | Antireflective polyimide dielectric for photolithography |
WO2003028021A1 (fr) * | 2001-09-26 | 2003-04-03 | Tdk Corporation | Support d'enregistrement optique et systeme d'enregistrement associe |
US7245578B2 (en) * | 2001-09-26 | 2007-07-17 | Tdk Corporation | Optical recording medium |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4032691A (en) * | 1974-03-22 | 1977-06-28 | Fuji Photo Film Co., Ltd. | Recording material |
FR2344920A1 (fr) * | 1976-03-19 | 1977-10-14 | Rca Corp | Support d'enregistrement d'information et procedes et dispositifs d'enregistrement et de reproduction correspondants |
DE2812868A1 (de) * | 1977-03-28 | 1978-10-12 | Rca Corp | Aufzeichnungstraeger zur aufzeichnung und wiedergabe von information mittels optischer strahlung |
FR2404887A1 (fr) * | 1977-09-28 | 1979-04-27 | Rca Corp | Moyen d'enregistrement d'informations |
FR2404888A1 (fr) * | 1977-09-29 | 1979-04-27 | Philips Nv | Element d'enregistrement d'information muni d'une couche auxiliaire contenant un colorant |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3651281A (en) * | 1969-06-06 | 1972-03-21 | Carl H Becker | Laser recording system using photomagnetically magnetizable storage medium |
US3665483A (en) * | 1969-06-06 | 1972-05-23 | Chase Manhattan Capital Corp | Laser recording medium |
US3812477A (en) * | 1973-04-09 | 1974-05-21 | Ibm | Method for superresolution in an optical memory |
US4000492A (en) * | 1974-04-04 | 1976-12-28 | Bell Telephone Laboratories, Incorporated | Metal film recording media for laser writing |
JPS50151035A (fr) * | 1974-05-23 | 1975-12-04 | ||
JPS5114263A (en) * | 1974-07-26 | 1976-02-04 | Hitachi Ltd | Setsugono roeiboshiho |
JPS5177325A (fr) * | 1974-12-27 | 1976-07-05 | Matsushita Electric Ind Co Ltd | |
AU511031B2 (en) * | 1976-03-19 | 1980-07-24 | Rca Corp. | Ablative optical recording medium |
US4023185A (en) * | 1976-03-19 | 1977-05-10 | Rca Corporation | Ablative optical recording medium |
US4101907A (en) * | 1977-08-29 | 1978-07-18 | Rca Corporation | Overcoat structure for optical video disc |
JPS6418503A (en) * | 1987-07-13 | 1989-01-23 | Kawasaki Steel Co | Method for cold rolling silicon steel sheet having good surface quality |
-
1978
- 1978-02-24 US US05/881,023 patent/US4189735A/en not_active Expired - Lifetime
-
1979
- 1979-02-19 IT IT20329/79A patent/IT1111718B/it active
- 1979-02-21 AU AU44433/79A patent/AU531122B2/en not_active Expired
- 1979-02-21 GB GB7906100A patent/GB2015770B/en not_active Expired
- 1979-02-23 FR FR7904704A patent/FR2418514B1/fr not_active Expired
- 1979-02-23 NL NL7901448A patent/NL193334C/nl not_active IP Right Cessation
- 1979-02-23 JP JP2128979A patent/JPS54126005A/ja active Granted
- 1979-02-23 DE DE19792907193 patent/DE2907193A1/de active Granted
-
1986
- 1986-10-16 HK HK776/86A patent/HK77686A/xx not_active IP Right Cessation
-
1990
- 1990-05-28 JP JP2139553A patent/JPH03116455A/ja active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4032691A (en) * | 1974-03-22 | 1977-06-28 | Fuji Photo Film Co., Ltd. | Recording material |
FR2344920A1 (fr) * | 1976-03-19 | 1977-10-14 | Rca Corp | Support d'enregistrement d'information et procedes et dispositifs d'enregistrement et de reproduction correspondants |
DE2812868A1 (de) * | 1977-03-28 | 1978-10-12 | Rca Corp | Aufzeichnungstraeger zur aufzeichnung und wiedergabe von information mittels optischer strahlung |
FR2404887A1 (fr) * | 1977-09-28 | 1979-04-27 | Rca Corp | Moyen d'enregistrement d'informations |
FR2404888A1 (fr) * | 1977-09-29 | 1979-04-27 | Philips Nv | Element d'enregistrement d'information muni d'une couche auxiliaire contenant un colorant |
Non-Patent Citations (5)
Title |
---|
IBM TECHNICAL DISCLOSURE BULLETIN, volume 14, no. 11, avril 1972 (NEW YORK, US) R.J. VON GUTFELD "Stretching the duration of thermal pulses for laser beam writing", pages 3478-3479 * |
IBM TECHNICAL DISCLOSURE BULLETIN, volume 15, no. 11, avril 1973 (NEW YORK, US) A.H. NETHERCOT et al. "Enhancing the temperature rise of beam addressable memory materials", pages 3305-3306 * |
IBM TECHNICAL DISCLOSURE BULLETIN, volume 15, no. 11, avril 1973 (NEW YORK, US) R.J. VON GUTFELD "Layered structure for thermal bubble (writing-erasing-reading) on chalcogenides", pages 3307-3308 * |
IBM TECHNICAL DISCLOSURE BULLETIN, volume 16, no. 2, juillet 1973 (NEW YORK, US) R.J. VON GUTFELD "Layered structure for decreasing laser energy for beam-addressable memory", pages 498-499 * |
IEEE JOURNAL OF QUANTUM ELECTRONICS, volume QE-14, no. 7, juillet 1978 (NEW YORK, US) A.E. BELL et al. "Antireflection structures for optical recording" pages 487-495 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2418513A1 (fr) * | 1978-02-24 | 1979-09-21 | Rca Corp | Support de stockage et de restitution d'information par voie optique |
FR2435780A1 (fr) * | 1978-09-08 | 1980-04-04 | Sumitomo Chemical Co | Support d'enregistrement et de reproduction de signaux optiques |
FR2435779A1 (fr) * | 1978-09-08 | 1980-04-04 | Matsushita Electric Ind Co Ltd | Element d'enregistrement optique |
FR2482756A1 (fr) * | 1980-05-14 | 1981-11-20 | Rca Corp | Disque contenant de l'information et procede pour y enregistrer et en effacer l'information de facon reversible |
EP0120539A1 (fr) * | 1983-03-28 | 1984-10-03 | Koninklijke Philips Electronics N.V. | Disque d'enregistrement optique |
EP0128616A1 (fr) * | 1983-06-02 | 1984-12-19 | Optical Storage International Holland | Elément d'enregistrement optique |
Also Published As
Publication number | Publication date |
---|---|
JPS54126005A (en) | 1979-09-29 |
JPH03116455A (ja) | 1991-05-17 |
JPH0118503B2 (fr) | 1989-04-06 |
AU4443379A (en) | 1979-08-30 |
NL193334B (nl) | 1999-02-01 |
FR2418514B1 (fr) | 1987-03-27 |
HK77686A (en) | 1986-10-24 |
DE2907193C2 (fr) | 1989-06-22 |
IT7920329A0 (it) | 1979-02-19 |
NL7901448A (nl) | 1979-08-28 |
IT1111718B (it) | 1986-01-13 |
DE2907193A1 (de) | 1979-09-06 |
AU531122B2 (en) | 1983-08-11 |
GB2015770A (en) | 1979-09-12 |
GB2015770B (en) | 1982-08-25 |
US4189735A (en) | 1980-02-19 |
NL193334C (nl) | 1999-06-02 |
JPH0470704B2 (fr) | 1992-11-11 |
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