JPH0462137B2 - - Google Patents
Info
- Publication number
- JPH0462137B2 JPH0462137B2 JP57205179A JP20517982A JPH0462137B2 JP H0462137 B2 JPH0462137 B2 JP H0462137B2 JP 57205179 A JP57205179 A JP 57205179A JP 20517982 A JP20517982 A JP 20517982A JP H0462137 B2 JPH0462137 B2 JP H0462137B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- tracking
- laser
- thin film
- track
- 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 - Lifetime
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
- G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
-
- 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
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57205179A JPS5996543A (ja) | 1982-11-22 | 1982-11-22 | 光メモリ−記録媒体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57205179A JPS5996543A (ja) | 1982-11-22 | 1982-11-22 | 光メモリ−記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5996543A JPS5996543A (ja) | 1984-06-04 |
| JPH0462137B2 true JPH0462137B2 (enrdf_load_stackoverflow) | 1992-10-05 |
Family
ID=16502723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57205179A Granted JPS5996543A (ja) | 1982-11-22 | 1982-11-22 | 光メモリ−記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5996543A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07121613B2 (ja) * | 1984-11-02 | 1995-12-25 | 株式会社リコー | 光情報記録媒体 |
| JPH01258243A (ja) * | 1988-04-08 | 1989-10-16 | Fujitsu Ltd | 互換型書き換え可能光ディスク |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5979442A (ja) * | 1982-10-28 | 1984-05-08 | Ricoh Co Ltd | 光記録媒体 |
-
1982
- 1982-11-22 JP JP57205179A patent/JPS5996543A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5996543A (ja) | 1984-06-04 |
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