ATE107070T1 - Photo-aufzeichnungsmedien und photo- aufzeichnungsmethode. - Google Patents
Photo-aufzeichnungsmedien und photo- aufzeichnungsmethode.Info
- Publication number
- ATE107070T1 ATE107070T1 AT89302849T AT89302849T ATE107070T1 AT E107070 T1 ATE107070 T1 AT E107070T1 AT 89302849 T AT89302849 T AT 89302849T AT 89302849 T AT89302849 T AT 89302849T AT E107070 T1 ATE107070 T1 AT E107070T1
- Authority
- AT
- Austria
- Prior art keywords
- photo recording
- photo
- recording media
- photochromic compounds
- recording method
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 abstract 3
- 239000004988 Nematic liquid crystal Substances 0.000 abstract 1
- 230000031700 light absorption Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0055—Erasing
- G11B7/00552—Erasing involving colour change media
-
- 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
-
- 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
- G11B7/24—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
- G11B7/244—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 organic materials only
- G11B7/25—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 organic materials only containing liquid crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Holo Graphy (AREA)
- Optical Recording Or Reproduction (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63075367A JPH01246538A (ja) | 1988-03-28 | 1988-03-28 | 光記録媒体 |
| JP63075366A JP2772345B2 (ja) | 1988-03-28 | 1988-03-28 | 光記録方式 |
| JP64000994A JPH02181746A (ja) | 1989-01-06 | 1989-01-06 | 光記録媒体 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE107070T1 true ATE107070T1 (de) | 1994-06-15 |
Family
ID=27274709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT89302849T ATE107070T1 (de) | 1988-03-28 | 1989-03-22 | Photo-aufzeichnungsmedien und photo- aufzeichnungsmethode. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5118586A (de) |
| EP (1) | EP0335579B1 (de) |
| KR (1) | KR920003783B1 (de) |
| AT (1) | ATE107070T1 (de) |
| DE (1) | DE68915843T2 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2940690B2 (ja) * | 1989-09-22 | 1999-08-25 | 三洋電機株式会社 | 光記録媒体及びその再生方法 |
| DE69028908T2 (de) * | 1989-12-28 | 1997-05-07 | Sanyo Electric Co | Aufzeichnungs- und Wiedergabeverfahren |
| US5234799A (en) * | 1990-02-17 | 1993-08-10 | Mitsubishi Denki Kabushiki Kaisha | Photochromic material and rewritable optical recording medium |
| US5644416A (en) * | 1991-11-26 | 1997-07-01 | Fuji Xerox Co., Ltd. | Light modulation device and method of light modulation using the same |
| US5552915A (en) * | 1994-10-19 | 1996-09-03 | The Penn State Research Foundation | Liquid crystal non-linear, photorefractive electro-optical storage device having a liquid crystal film including dopant species of C60 or C70 |
| US6011772A (en) * | 1996-09-16 | 2000-01-04 | Spectradisc Corporation | Machine-readable optical disc with reading-inhibit agent |
| US6071618A (en) * | 1996-10-11 | 2000-06-06 | Cryovac, Inc. | Process for increasing the solubility rate of a water soluble film |
| JPH10183117A (ja) * | 1996-12-24 | 1998-07-14 | Dainippon Printing Co Ltd | 記録表示媒体及びその使用方法 |
| US5989451A (en) * | 1997-02-07 | 1999-11-23 | Queen's University At Kingston | Compounds and methods for doping liquid crystal hosts |
| US7177261B2 (en) | 2001-06-05 | 2007-02-13 | Flexplay Technologies, Inc. | Limited play optical devices with interstitial reactive layer and methods of making same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3212898A (en) * | 1962-11-21 | 1965-10-19 | American Cyanamid Co | Photosensitive compositions of matter comprising photochromic materials suspended in polyester binders |
| US3397059A (en) * | 1964-07-01 | 1968-08-13 | American Cyanamid Co | Photochromic polymethylmethacrylate element on contact with polyester resinous material |
| DE3429438A1 (de) * | 1984-08-10 | 1988-06-23 | Basf Ag | Optisches aufzeichnungsmedium |
| US4686169A (en) * | 1984-11-13 | 1987-08-11 | Matsushita Electric Industrial Co., Ltd. | Optical recording medium and production of the same |
| JPS61170737A (ja) * | 1985-01-24 | 1986-08-01 | Sony Corp | 光記録媒体 |
| DE3682583D1 (de) * | 1985-12-20 | 1992-01-02 | Matsushita Electric Industrial Co Ltd | Optisches aufzeichnungsmedium mit stabilisierter aufzeichnungsschicht. |
| JPS62209186A (ja) * | 1986-03-11 | 1987-09-14 | Agency Of Ind Science & Technol | 光メモリ材料 |
| DE3623395A1 (de) * | 1986-07-11 | 1988-01-21 | Roehm Gmbh | Vorrichtung zur reversiblen, optischen datenspeicherung unter verwendung von polymeren fluessigkristallen |
| US4963448A (en) * | 1987-08-31 | 1990-10-16 | Agency Of Industrial Science & Technology | Photorecording element and liquid crystal cell comprising the same |
-
1989
- 1989-03-20 US US07/325,995 patent/US5118586A/en not_active Expired - Lifetime
- 1989-03-22 DE DE68915843T patent/DE68915843T2/de not_active Expired - Fee Related
- 1989-03-22 EP EP89302849A patent/EP0335579B1/de not_active Expired - Lifetime
- 1989-03-22 AT AT89302849T patent/ATE107070T1/de not_active IP Right Cessation
- 1989-03-28 KR KR1019890003854A patent/KR920003783B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0335579A2 (de) | 1989-10-04 |
| US5118586A (en) | 1992-06-02 |
| EP0335579A3 (en) | 1990-11-28 |
| KR920003783B1 (ko) | 1992-05-14 |
| EP0335579B1 (de) | 1994-06-08 |
| KR890015216A (ko) | 1989-10-28 |
| DE68915843D1 (de) | 1994-07-14 |
| DE68915843T2 (de) | 1994-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |