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
- 239000000463 material Substances 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 11
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- -1 Silver halide Chemical class 0.000 claims description 5
- 230000031700 light absorption Effects 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 150000002902 organometallic compounds Chemical class 0.000 claims description 2
- 238000006303 photolysis reaction Methods 0.000 claims description 2
- 238000007539 photo-oxidation reaction Methods 0.000 claims 1
- 230000015843 photosynthesis, light reaction Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 238000009826 distribution Methods 0.000 description 6
- 239000011253 protective coating Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 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
- G11B7/08—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 (da) | 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 (da) |
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 |
Citations (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
Patent Citations (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5996543A (ja) | 1984-06-04 |
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