CA1031198A - Data carrier optically readable by transmission/via surface relief - Google Patents
Data carrier optically readable by transmission/via surface reliefInfo
- Publication number
- CA1031198A CA1031198A CA229,836A CA229836A CA1031198A CA 1031198 A CA1031198 A CA 1031198A CA 229836 A CA229836 A CA 229836A CA 1031198 A CA1031198 A CA 1031198A
- Authority
- CA
- Canada
- Prior art keywords
- transmission
- data carrier
- surface relief
- optically readable
- via surface
- 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
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
-
- 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
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina
- Y10T156/1092—All laminae planar and face to face
- Y10T156/1093—All laminae planar and face to face with covering of discrete laminae with additional lamina
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7421662A FR2275841A1 (fr) | 1974-06-21 | 1974-06-21 | Support d'information lisible optiquement par transmission et procede de fabrication dudit support |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1031198A true CA1031198A (en) | 1978-05-16 |
Family
ID=9140383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA229,836A Expired CA1031198A (en) | 1974-06-21 | 1975-06-20 | Data carrier optically readable by transmission/via surface relief |
Country Status (7)
Country | Link |
---|---|
US (1) | US4038524A (es) |
JP (1) | JPS5855568B2 (es) |
CA (1) | CA1031198A (es) |
DE (1) | DE2527085A1 (es) |
FR (1) | FR2275841A1 (es) |
GB (1) | GB1508861A (es) |
IT (1) | IT1039161B (es) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4410968A (en) * | 1977-03-24 | 1983-10-18 | Thomas Lee Siwecki | Method and apparatus for recording on a disk supported deformable metallic film |
US4142098A (en) * | 1977-07-05 | 1979-02-27 | Zenith Radio Corporation | Optical readout for reflective video discs |
US4300143A (en) * | 1977-08-29 | 1981-11-10 | Rca Corporation | Thin protective overcoat layer for optical video disc |
NL7803517A (nl) * | 1978-04-03 | 1979-10-05 | Philips Nv | Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen. |
US4310919A (en) * | 1979-01-15 | 1982-01-12 | Discovision Associates | Optical video disc structure |
US4264911A (en) * | 1979-08-20 | 1981-04-28 | Mca Discovision, Inc. | Optical recording disc and related method of manufacture |
US4327283A (en) * | 1979-09-24 | 1982-04-27 | Rca Corporation | Workpiece with machine-readable marking recessed therein and method of making same |
JPS5848190B2 (ja) * | 1980-05-23 | 1983-10-27 | 株式会社スワロ−スキ− | 内插板を有する発泡性樹脂を芯材としたスキ−板及びその製造方法 |
JPS5796669A (en) * | 1980-12-08 | 1982-06-16 | Hasegawa Kagaku Kogyo Kk | Injection ski and its manufacture |
US4387381A (en) * | 1981-06-12 | 1983-06-07 | Rca Corporation | Optical recording medium and information record with tracking aid |
JPS586536A (ja) * | 1981-07-01 | 1983-01-14 | Pioneer Electronic Corp | 光学式デイスク |
JPS5843267A (ja) * | 1981-09-08 | 1983-03-12 | Matsushita Electric Ind Co Ltd | 円盤の塗装方法 |
DE3379693D1 (en) * | 1982-02-05 | 1989-05-24 | Matsushita Electric Ind Co Ltd | Optical recording/reproduction disc |
JPS61203078U (es) * | 1985-06-06 | 1986-12-20 | ||
DE3628701A1 (de) * | 1986-08-23 | 1988-02-25 | Philips & Du Pont Optical | Optisch auslesbarer plattenfoermiger informationstraeger |
JPS63294874A (ja) * | 1988-01-29 | 1988-12-01 | 株式会社スワロースキー | インジェクションスキーの製造方法 |
DE4229249A1 (de) * | 1992-09-02 | 1994-05-05 | Polygram Record Service Gmbh | Optisch auslesbarer Informationsträger |
DE69424532T2 (de) * | 1993-12-23 | 2001-01-18 | Thomson-Csf, Paris | Verfahren und optisches system zur aufzeichnung/wiedergabe von information auf einem aufzeichnungsmedium |
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 |
FR2731808B1 (fr) * | 1995-03-14 | 1997-04-11 | Thomson Csf | Systeme de reglage de focalisation optique |
FR2739965B1 (fr) * | 1995-10-17 | 1997-11-07 | Thomson Csf | Dispositif emetteur-recepteur de lumiere et systeme de lecture optique |
FR2742911B1 (fr) * | 1995-12-21 | 1998-02-06 | Thomson Csf | Support d'enregistrement/lecture optique d'informations et procede d'enregistrement |
FR2786345B1 (fr) | 1998-11-24 | 2001-02-09 | Thomson Csf | Dispositif de cryptage quantique |
FR2787232B1 (fr) | 1998-12-15 | 2001-02-23 | Thomson Csf | Disque d'enregistrement optique anti-piratage et procede de lecture d'un tel disque |
FR2805071B1 (fr) | 2000-02-11 | 2002-05-03 | Moulage Plastique De L Ouest | Disque optique protege contre la copie et procede de protection pour un tel disque |
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 |
US6680898B2 (en) * | 2001-02-21 | 2004-01-20 | Todd J. Kuchman | Optical disc and method of protecting same |
US6842409B2 (en) * | 2001-02-21 | 2005-01-11 | Scratch-Less Disc Industries, Llc | Optical disc and method of protecting same |
FR2824905B1 (fr) * | 2001-05-15 | 2003-08-29 | Thomson Csf | Gyrometre a fibre optique |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3313052A (en) * | 1965-04-29 | 1967-04-11 | Polaroid Corp | Laminations |
US3536894A (en) * | 1965-07-23 | 1970-10-27 | Jerry E Travioli | Electronic credit card acceptor |
US3586593A (en) * | 1965-10-22 | 1971-06-22 | Ernest A Dahl Jr | Magnetically actuatable business machine card |
US3430966A (en) * | 1967-04-03 | 1969-03-04 | Gauss Electrophysics Inc | Transparent recording disc |
US3829662A (en) * | 1969-04-17 | 1974-08-13 | Canon Kk | Recording medium having concealed information as input for electronic computer |
US3846843A (en) * | 1971-07-19 | 1974-11-05 | Minnesota Mining & Mfg | Composite film |
US3786238A (en) * | 1972-09-05 | 1974-01-15 | Addressograph Multigraph | Optical reader |
FR2266932B1 (es) * | 1973-03-02 | 1977-09-02 | Thomson Brandt |
-
1974
- 1974-06-21 FR FR7421662A patent/FR2275841A1/fr active Granted
-
1975
- 1975-06-17 US US05/588,158 patent/US4038524A/en not_active Expired - Lifetime
- 1975-06-18 DE DE19752527085 patent/DE2527085A1/de not_active Ceased
- 1975-06-18 GB GB26043/75A patent/GB1508861A/en not_active Expired
- 1975-06-20 CA CA229,836A patent/CA1031198A/en not_active Expired
- 1975-06-20 IT IT24590/75A patent/IT1039161B/it active
- 1975-06-21 JP JP50076408A patent/JPS5855568B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5116821A (es) | 1976-02-10 |
IT1039161B (it) | 1979-12-10 |
JPS5855568B2 (ja) | 1983-12-10 |
DE2527085A1 (de) | 1976-01-08 |
FR2275841A1 (fr) | 1976-01-16 |
FR2275841B1 (es) | 1979-05-04 |
US4038524A (en) | 1977-07-26 |
GB1508861A (en) | 1978-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |
Effective date: 19950516 |