JPS643834A - Optical recording medium - Google Patents
Optical recording mediumInfo
- Publication number
- JPS643834A JPS643834A JP62157138A JP15713887A JPS643834A JP S643834 A JPS643834 A JP S643834A JP 62157138 A JP62157138 A JP 62157138A JP 15713887 A JP15713887 A JP 15713887A JP S643834 A JPS643834 A JP S643834A
- Authority
- JP
- Japan
- Prior art keywords
- recording layer
- recording
- information
- light pulses
- substrate
- 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.)
- Pending
Links
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
PURPOSE:To utilize a change in optical constant by projection of light pulses and to speed up information recording by providing a recording layer consisting of Mn and Ge on a substrate. CONSTITUTION:The recording layer provided on the substrate is formed of the two elements; Mn and Ge. The atomic number ratios of the Mn and Te are limited to 40:60-85:15 ranges. The recording layer is easily changed in reflectivity by the laser irradiation of a short pulse width if the Mn and Ge are incorporated into the recording layer and the range of the content of the Mn is limited. High-speed recording of information is thereby enabled and the reproduction is possible as well. In addition, the once recorded information is erased and the fresh information is recordable when the light pulses of the power lower than the power of the light pulses used for the recording are projected to the recording layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157138A JPS643834A (en) | 1987-06-24 | 1987-06-24 | Optical recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157138A JPS643834A (en) | 1987-06-24 | 1987-06-24 | Optical recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS643834A true JPS643834A (en) | 1989-01-09 |
Family
ID=15643027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62157138A Pending JPS643834A (en) | 1987-06-24 | 1987-06-24 | Optical recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643834A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1703316A1 (en) | 2005-03-17 | 2006-09-20 | Seiko Epson Corporation | Optical beam splitting element and projector comprising such an element |
-
1987
- 1987-06-24 JP JP62157138A patent/JPS643834A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1703316A1 (en) | 2005-03-17 | 2006-09-20 | Seiko Epson Corporation | Optical beam splitting element and projector comprising such an element |
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