SE7803138L - DEVICE FOR READING A RADIATION REFLECTIVE RECORDER - Google Patents
DEVICE FOR READING A RADIATION REFLECTIVE RECORDERInfo
- Publication number
- SE7803138L SE7803138L SE7803138A SE7803138A SE7803138L SE 7803138 L SE7803138 L SE 7803138L SE 7803138 A SE7803138 A SE 7803138A SE 7803138 A SE7803138 A SE 7803138A SE 7803138 L SE7803138 L SE 7803138L
- Authority
- SE
- Sweden
- Prior art keywords
- recorder
- reading
- radiation reflective
- reflective
- radiation
- Prior art date
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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
- G11B7/0909—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by astigmatic methods
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7703076A NL7703076A (en) | 1977-03-22 | 1977-03-22 | DEVICE FOR READING A RADIATION-REFLECTING RECORD CARRIER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7803138L true SE7803138L (en) | 1978-09-23 |
| SE424676B SE424676B (en) | 1982-08-02 |
Family
ID=19828205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7803138A SE424676B (en) | 1977-03-22 | 1978-03-20 | DEVICE FOR READING A RADIATOR REFLECTING RECORDER |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS53117403A (en) |
| AR (1) | AR214353A1 (en) |
| AT (1) | AT369580B (en) |
| AU (1) | AU510218B2 (en) |
| BE (1) | BE865083A (en) |
| BR (1) | BR7801690A (en) |
| CA (1) | CA1109560A (en) |
| CH (1) | CH627016A5 (en) |
| DE (1) | DE2810616A1 (en) |
| DK (1) | DK145868C (en) |
| ES (1) | ES468055A1 (en) |
| FR (1) | FR2385171A1 (en) |
| IT (1) | IT1093316B (en) |
| MX (1) | MX143603A (en) |
| NL (1) | NL7703076A (en) |
| NZ (1) | NZ186732A (en) |
| PL (1) | PL113996B1 (en) |
| SE (1) | SE424676B (en) |
| YU (1) | YU39193B (en) |
| ZA (1) | ZA78216B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1131361A (en) * | 1977-05-11 | 1982-09-07 | Fumitaka Kotaka | Focus servo device for use in optical read-out device of information |
| FR2460022B1 (en) * | 1979-06-25 | 1987-09-11 | Hitachi Ltd | OPTICAL INFORMATION REPRODUCING SYSTEM |
| NL7907216A (en) * | 1979-09-28 | 1981-03-31 | Philips Nv | OPTICAL FOCUS ERROR DETECTION SYSTEM. |
| JPS59125727U (en) * | 1983-02-15 | 1984-08-24 | パイオニア株式会社 | Optical information pickup device |
| NL8400674A (en) * | 1984-03-02 | 1985-10-01 | Philips Nv | DEVICE FOR REGISTERING AND / OR READING INFORMATION IN A TRACK OF A REFLECTIVE RECORD CARRIER WITH A FOCUS CONTROL WITH REDUCED SPOT OFFSET SENSITIVITY. |
| JPS6139942A (en) * | 1984-08-01 | 1986-02-26 | Matsushita Electric Ind Co Ltd | Optical pickup |
| US4609813A (en) * | 1985-03-18 | 1986-09-02 | International Business Machines Corporation | Optical systems employing ovate light beams |
| JPS6310326A (en) * | 1986-07-01 | 1988-01-16 | Sanyo Electric Co Ltd | Optical pickup device |
| DE3828146A1 (en) * | 1988-08-19 | 1990-02-22 | Philips Patentverwaltung | ELECTRODYNAMIC ACTUATOR FOR AN OPTICAL WRITE-IN AND READ-OUT UNIT |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2271590B1 (en) * | 1974-01-15 | 1978-12-01 | Thomson Brandt | |
| NL182990C (en) * | 1975-07-07 | 1988-06-16 | Philips Nv | DEVICE FOR READING A RADIATION-REFLECTING RECORD CARRIER. |
| FR2325987A1 (en) * | 1975-09-29 | 1977-04-22 | Thomson Brandt | OPTICAL READING DEVICE FOR A RECORDING |
| GB1532345A (en) * | 1976-06-25 | 1978-11-15 | Hitachi Ltd | Information play-back apparatus |
| JPS5337722A (en) * | 1976-09-20 | 1978-04-07 | Ebata Shiyouji Kk | Method of producing concrete piles |
| NL7703077A (en) * | 1977-03-22 | 1978-09-26 | Philips Nv | DEVICE FOR READING A RADIATION-REFLECTING RECORD CARRIER. |
-
1977
- 1977-03-22 NL NL7703076A patent/NL7703076A/en not_active Application Discontinuation
-
1978
- 1978-01-12 ZA ZA00780216A patent/ZA78216B/en unknown
- 1978-02-06 AR AR270983A patent/AR214353A1/en active
- 1978-03-11 DE DE19782810616 patent/DE2810616A1/en active Pending
- 1978-03-15 CA CA298,999A patent/CA1109560A/en not_active Expired
- 1978-03-17 DK DK120578A patent/DK145868C/en not_active IP Right Cessation
- 1978-03-17 IT IT21340/78A patent/IT1093316B/en active
- 1978-03-17 MX MX172816A patent/MX143603A/en unknown
- 1978-03-20 SE SE7803138A patent/SE424676B/en not_active IP Right Cessation
- 1978-03-20 PL PL1978205453A patent/PL113996B1/en unknown
- 1978-03-20 BR BR7801690A patent/BR7801690A/en unknown
- 1978-03-20 CH CH302678A patent/CH627016A5/en not_active IP Right Cessation
- 1978-03-20 AT AT0196578A patent/AT369580B/en not_active IP Right Cessation
- 1978-03-20 NZ NZ186732A patent/NZ186732A/en unknown
- 1978-03-20 BE BE186087A patent/BE865083A/en not_active IP Right Cessation
- 1978-03-20 AU AU34294/78A patent/AU510218B2/en not_active Expired
- 1978-03-20 ES ES468055A patent/ES468055A1/en not_active Expired
- 1978-03-21 YU YU00673/78A patent/YU39193B/en unknown
- 1978-03-22 JP JP3182778A patent/JPS53117403A/en active Pending
- 1978-03-22 FR FR7808294A patent/FR2385171A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NZ186732A (en) | 1981-02-11 |
| YU39193B (en) | 1984-08-31 |
| CH627016A5 (en) | 1981-12-15 |
| ES468055A1 (en) | 1978-11-16 |
| FR2385171A1 (en) | 1978-10-20 |
| IT1093316B (en) | 1985-07-19 |
| AU510218B2 (en) | 1980-06-12 |
| ZA78216B (en) | 1979-08-29 |
| AT369580B (en) | 1983-01-10 |
| DK145868B (en) | 1983-03-21 |
| PL205453A1 (en) | 1978-12-18 |
| AU3429478A (en) | 1979-09-27 |
| DK120578A (en) | 1978-09-23 |
| IT7821340A0 (en) | 1978-03-17 |
| ATA196578A (en) | 1982-05-15 |
| DK145868C (en) | 1983-09-12 |
| AR214353A1 (en) | 1979-05-31 |
| MX143603A (en) | 1981-06-05 |
| NL7703076A (en) | 1978-09-26 |
| YU67378A (en) | 1982-06-30 |
| BR7801690A (en) | 1979-01-02 |
| PL113996B1 (en) | 1981-01-31 |
| JPS53117403A (en) | 1978-10-13 |
| DE2810616A1 (en) | 1978-09-28 |
| BE865083A (en) | 1978-09-20 |
| SE424676B (en) | 1982-08-02 |
| CA1109560A (en) | 1981-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE7803078L (en) | DEVICE FOR READING A RADIATION REFLECTIVE RECORDER | |
| SE417555B (en) | DEVICE FOR READING A RECORDER | |
| SE7908493L (en) | OPTICAL READING DEVICE FOR READING A DISC-SIGNED RECORDER | |
| JPS531002A (en) | Radiation sensitive record | |
| SE411601B (en) | DEVICE FOR READING A PLAN RECORDER | |
| SE406658B (en) | DEVICE FOR READING A DISC SHAPED RECORDER | |
| JPS51135549A (en) | Information recording optical device | |
| JPS5529787A (en) | Optical development*recording device | |
| SE7709712L (en) | DEVICE FOR FIXING A ROLLER DISC | |
| SE7606098L (en) | DEVICE FOR READING A RECORD CARRIER | |
| SE7803138L (en) | DEVICE FOR READING A RADIATION REFLECTIVE RECORDER | |
| SE7803140L (en) | DEVICE FOR READING AN OPTICAL RADIATION REFLECTIVE RECORDER | |
| DK147170C (en) | DEVICE FOR READING A DISC-SIGNED RECORDER | |
| SE414984B (en) | DEVICE FOR READING A DISC-SIGNED RECORDER | |
| SE7813205L (en) | HALLAR DEVICE FOR CASSETTE CONTAINERS | |
| NO782203L (en) | DEVICE FOR FIXING WORKS | |
| NO783060L (en) | FIXING DEVICE FOR A LIFEFLOAT | |
| SE7607999L (en) | DISC RECORDING DEVICE FOR ELECTRONIC RADIATION | |
| GB2013887B (en) | Optical image accousto-electric reading device | |
| JPS545731A (en) | Light sensitive element for electrophotography | |
| SE405179B (en) | SET AND DEVICE FOR READING DATA | |
| JPS5333604A (en) | Device for optically reading information | |
| SE7703652L (en) | DEVICE FOR MACHINE READING OPTICAL CONDITIONS | |
| SE7810020L (en) | DEVICE FOR READING THE SIGNS OF A NON-OPACT FOREMAL | |
| JPS5336418A (en) | Device for reading optical information |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 7803138-2 Format of ref document f/p: F |
|
| NUG | Patent has lapsed |
Ref document number: 7803138-2 Format of ref document f/p: F |