CA1122321A - Protected optical disc - Google Patents
Protected optical discInfo
- Publication number
- CA1122321A CA1122321A CA336,630A CA336630A CA1122321A CA 1122321 A CA1122321 A CA 1122321A CA 336630 A CA336630 A CA 336630A CA 1122321 A CA1122321 A CA 1122321A
- Authority
- CA
- Canada
- Prior art keywords
- layer
- cover
- metal
- disc according
- disc
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000005855 radiation Effects 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims 1
- 230000003078 antioxidant effect Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 39
- 238000007493 shaping process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000905957 Channa melasoma Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 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
- G11B7/24015—Air-sandwiched discs
-
- 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
- Y10S430/146—Laser beam
-
- 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
- Y10S430/162—Protective or antiabrasion layer
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Manufacturing Optical Record Carriers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7827920 | 1978-09-29 | ||
| FR7827920A FR2437668A1 (fr) | 1978-09-29 | 1978-09-29 | Disque optique protege |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1122321A true CA1122321A (en) | 1982-04-20 |
Family
ID=9213182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA336,630A Expired CA1122321A (en) | 1978-09-29 | 1979-09-28 | Protected optical disc |
Country Status (6)
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4264911A (en) * | 1979-08-20 | 1981-04-28 | Mca Discovision, Inc. | Optical recording disc and related method of manufacture |
| FR2474223A1 (fr) * | 1980-01-23 | 1981-07-24 | Thomson Csf | Procede d'inscription thermo-optique d'information et support d'information destine a la mise en oeuvre de ce procede |
| US4447899A (en) * | 1980-06-18 | 1984-05-08 | Eastman Kodak Company | Optical disc method, media and apparatus for writing and/or reading information |
| EP0049821B1 (en) * | 1980-10-09 | 1987-04-15 | Kabushiki Kaisha Toshiba | Data recording medium |
| US4365257A (en) * | 1981-03-05 | 1982-12-21 | Minnesota Mining And Manufacturing Company | Stretched-film optical recording disc |
| JPS57169938A (en) * | 1981-04-10 | 1982-10-19 | Sony Corp | Optical type recording medium |
| US4365258A (en) * | 1981-05-18 | 1982-12-21 | Eastman Kodak Company | Optical disc unit, fabrication method and cooperating write and/or read apparatus |
| JPS58130451A (ja) * | 1982-01-29 | 1983-08-03 | Toshiba Corp | 情報記憶媒体 |
| FR2524186B1 (fr) * | 1982-03-23 | 1989-02-24 | Thomson Csf | Disque optique protege comprenant un element souple de fermeture |
| FR2524187A1 (fr) * | 1982-03-23 | 1983-09-30 | Thomson Csf | Disque optique protege de l'humidite |
| FR2528216B1 (fr) * | 1982-06-08 | 1988-01-08 | Thomson Csf | Disque optique protege a porte-couche libre |
| US4480302A (en) * | 1982-09-29 | 1984-10-30 | Storage Technology Corporation | Optical recording media |
| JPS5971146A (ja) * | 1982-10-14 | 1984-04-21 | Toshiba Corp | 情報記憶媒体 |
| US4546465A (en) * | 1982-11-03 | 1985-10-08 | Eastman Kodak Company | Optical disc assembly retaining rings |
| US4584259A (en) * | 1982-12-17 | 1986-04-22 | Burroughs Corporation | Coated media for optical recording with acrylic overcoat |
| NL8300478A (nl) * | 1983-02-09 | 1984-09-03 | Philips Nv | Optisch uitleesbare geheugenschijf. |
| US5216664A (en) * | 1983-02-09 | 1993-06-01 | U.S. Philips Corporation | Optically readable disc with a centering member fixed to a transparent substrate |
| NL8300479A (nl) * | 1983-02-09 | 1984-09-03 | Philips Nv | Optisch uitleesbare plaat. |
| US4499477A (en) * | 1983-03-14 | 1985-02-12 | Minnesota Mining And Manufacturing Company | Cover assembly for optical recording medium |
| US4556968A (en) * | 1983-03-31 | 1985-12-03 | Storage Technology Partners Ii | Unconstrained removable protective cover for optical disk |
| JPS6145731U (ja) * | 1984-08-23 | 1986-03-26 | パイオニア株式会社 | 光学式情報記録担体 |
| US4878212A (en) * | 1984-10-05 | 1989-10-31 | Hoechst Celanese Corporation | Optical recording medium comprising a microporous polymer recording layer |
| JPS6271042A (ja) * | 1985-09-24 | 1987-04-01 | Sharp Corp | 光メモリ素子 |
| JPH01176343A (ja) * | 1987-12-30 | 1989-07-12 | Taiyo Yuden Co Ltd | 光情報記録媒体 |
| JPH01300988A (ja) * | 1988-05-30 | 1989-12-05 | Juki Corp | ミシンの上糸供給装置 |
| US5328816A (en) * | 1988-09-13 | 1994-07-12 | Canon Kabushiki Kaisha | Process for producing optical recording medium |
| US5293370A (en) * | 1991-01-16 | 1994-03-08 | Del Mar Avionics | Method and apparatus for creating optical disc masters |
| FR2723243B1 (fr) * | 1994-07-26 | 1996-09-06 | Thomson Csf | Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation |
| FR2739965B1 (fr) * | 1995-10-17 | 1997-11-07 | Thomson Csf | Dispositif emetteur-recepteur de lumiere et systeme de lecture optique |
| FR2786345B1 (fr) | 1998-11-24 | 2001-02-09 | Thomson Csf | Dispositif de cryptage quantique |
| US7149173B2 (en) * | 2000-10-17 | 2006-12-12 | Thales | Medium for recording optically readable data, method for making same and optical system reproducing said data |
| FR2824905B1 (fr) * | 2001-05-15 | 2003-08-29 | Thomson Csf | Gyrometre a fibre optique |
| EP1578270B1 (en) * | 2002-12-24 | 2018-08-01 | Roche Diabetes Care GmbH | A sampling device utilizing biased capillary action |
| US7351212B2 (en) * | 2002-12-30 | 2008-04-01 | Roche Diagnostics Operations, Inc. | Blood acquisition suspension system |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1574687B2 (de) * | 1968-02-06 | 1978-08-10 | Robert Bosch Gmbh, 7000 Stuttgart | Aufzeichnungsträger für Informationen |
| FR2214934B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-01-18 | 1978-03-24 | Thomson Csf | |
| FR2238211B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-07-19 | 1976-09-17 | Paudras Francis | |
| JPS5934519B2 (ja) * | 1974-05-25 | 1984-08-23 | キヤノン株式会社 | ヒ−トモ−ド記録媒体 |
| US4001840A (en) * | 1974-10-07 | 1977-01-04 | Precision Instrument Co. | Non-photographic, digital laser image recording |
| US4038663A (en) * | 1975-09-23 | 1977-07-26 | U.S. Philips Corporation | Method of writing information with a modulated radiation beam onto an information storage medium and information storage medium particularly adapted to the method |
| US4074282A (en) * | 1976-05-13 | 1978-02-14 | North American Philips Corporation | Radiation-sensitive record with protected sensitive surface |
| FR2355337A1 (fr) * | 1976-06-18 | 1978-01-13 | Thomson Brandt | Procede de fabrication d'un support d'information inscriptible et lisible optiquement, et support ainsi obtenu |
| DE2653831C2 (de) * | 1976-11-26 | 1982-09-09 | Polygram Gmbh, 2000 Hamburg | Plattenförmiger Informationsträger |
| JPS5496002A (en) * | 1978-01-13 | 1979-07-30 | Hitachi Ltd | Information recording plate |
| US4264911A (en) * | 1979-08-20 | 1981-04-28 | Mca Discovision, Inc. | Optical recording disc and related method of manufacture |
-
1978
- 1978-09-29 FR FR7827920A patent/FR2437668A1/fr active Granted
-
1979
- 1979-09-13 DE DE7979400643T patent/DE2966331D1/de not_active Expired
- 1979-09-13 EP EP79400643A patent/EP0010017B1/fr not_active Expired
- 1979-09-25 US US06/078,728 patent/US4308545A/en not_active Expired - Lifetime
- 1979-09-27 JP JP12467679A patent/JPS5548837A/ja active Granted
- 1979-09-28 CA CA336,630A patent/CA1122321A/en not_active Expired
-
1980
- 1980-10-15 US US06/197,233 patent/US4380016A/en not_active Expired - Lifetime
-
1988
- 1988-12-13 JP JP63314836A patent/JPH01199336A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0010017B1 (fr) | 1983-10-19 |
| EP0010017A1 (fr) | 1980-04-16 |
| FR2437668B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1981-12-24 |
| DE2966331D1 (en) | 1983-11-24 |
| US4308545A (en) | 1981-12-29 |
| FR2437668A1 (fr) | 1980-04-25 |
| JPS5548837A (en) | 1980-04-08 |
| JPH0132581B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-07-06 |
| US4380016A (en) | 1983-04-12 |
| JPH01199336A (ja) | 1989-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |