IT1174321B - WIDE BAND REFLECTIVE LASER RECORDING AND DATA STORAGE BAND - Google Patents
WIDE BAND REFLECTIVE LASER RECORDING AND DATA STORAGE BANDInfo
- Publication number
- IT1174321B IT1174321B IT50136/80A IT5013680A IT1174321B IT 1174321 B IT1174321 B IT 1174321B IT 50136/80 A IT50136/80 A IT 50136/80A IT 5013680 A IT5013680 A IT 5013680A IT 1174321 B IT1174321 B IT 1174321B
- Authority
- IT
- Italy
- Prior art keywords
- band
- data storage
- laser recording
- reflective laser
- wide band
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/02—Photosensitive materials characterised by the image-forming section
- G03C8/04—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
- G03C8/06—Silver salt diffusion transfer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/40—Chemically transforming developed images
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/013—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
-
- 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
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/251—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials dispersed in an organic matrix
-
- 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
-
- 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
- G11B7/28—Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Mathematical Physics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12173280A | 1980-02-15 | 1980-02-15 | |
US06/140,136 US4284716A (en) | 1979-07-06 | 1980-04-14 | Broadband reflective laser recording and data storage medium with absorptive underlayer |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8050136A0 IT8050136A0 (en) | 1980-11-12 |
IT1174321B true IT1174321B (en) | 1987-07-01 |
Family
ID=26819752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT50136/80A IT1174321B (en) | 1980-02-15 | 1980-11-12 | WIDE BAND REFLECTIVE LASER RECORDING AND DATA STORAGE BAND |
Country Status (10)
Country | Link |
---|---|
BR (1) | BR8100849A (en) |
CA (1) | CA1134508A (en) |
CH (1) | CH650611A5 (en) |
DK (1) | DK62781A (en) |
ES (1) | ES499424A0 (en) |
GB (1) | GB2074333B (en) |
IL (1) | IL62139A (en) |
IT (1) | IT1174321B (en) |
MX (1) | MX151078A (en) |
NO (1) | NO157597C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933192A (en) * | 1982-08-18 | 1984-02-22 | Konishiroku Photo Ind Co Ltd | Recording medium |
-
1980
- 1980-07-04 CA CA000355411A patent/CA1134508A/en not_active Expired
- 1980-11-12 IT IT50136/80A patent/IT1174321B/en active
-
1981
- 1981-02-12 BR BR8100849A patent/BR8100849A/en unknown
- 1981-02-12 NO NO810481A patent/NO157597C/en unknown
- 1981-02-13 DK DK62781A patent/DK62781A/en not_active Application Discontinuation
- 1981-02-13 CH CH984/81A patent/CH650611A5/en not_active IP Right Cessation
- 1981-02-13 ES ES499424A patent/ES499424A0/en active Granted
- 1981-02-15 IL IL62139A patent/IL62139A/en unknown
- 1981-02-16 GB GB8104809A patent/GB2074333B/en not_active Expired
- 1981-02-16 MX MX185998A patent/MX151078A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BR8100849A (en) | 1981-08-25 |
NO810481L (en) | 1981-08-17 |
CH650611A5 (en) | 1985-07-31 |
NO157597C (en) | 1988-04-13 |
IL62139A (en) | 1984-12-31 |
DK62781A (en) | 1981-08-16 |
GB2074333B (en) | 1984-02-01 |
NO157597B (en) | 1988-01-04 |
GB2074333A (en) | 1981-10-28 |
MX151078A (en) | 1984-09-24 |
ES8202975A1 (en) | 1982-02-01 |
ES499424A0 (en) | 1982-02-01 |
IT8050136A0 (en) | 1980-11-12 |
IL62139A0 (en) | 1981-03-31 |
CA1134508A (en) | 1982-10-26 |
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