| 发明名称 |
OPTICAL RECORDING MEDIUM |
| 摘要 |
<p>A phase changing type optical medium (1) on which information is recorded by irradiating the medium with light and which is constituted by successively forming a first protective layer, a recording layer, a second protective layer, and a reflecting layer on a transparent substrate, (2) the first protective layer of which has a thickness which falls within a range of 30 +/- nm within which the reflectivity is the minimum when the protective layer is irradiated with light from the transparent substrate side, and (3) the second protective layer of which has an adsorption coefficient meeting the inequality, 0.05 </= k </= 2.5. The variation of the shape and size of recording pits can be reduced regardless of whether the state of the recording layer before recording is a crystalline state or an amorphous state. Therefore, the optical recording medium has an improved erase ratio, less jitter, and an excellent error rate.</p> |
| 申请公布号 |
WO9617344(A1) |
申请公布日期 |
1996.06.06 |
| 申请号 |
WO1995JP02381 |
申请日期 |
1995.11.22 |
| 申请人 |
ASAHI KASEI KOGYO KABUSHIKI KAISHA;TERADA, MASATO;FURUYA, KAZUYUKI;OKAMURA, TATSUYA;SUZUKI, MASARU |
发明人 |
TERADA, MASATO;FURUYA, KAZUYUKI;OKAMURA, TATSUYA;SUZUKI, MASARU |
| 分类号 |
G11B7/0045;G11B7/24;G11B7/243;G11B7/253;G11B7/2533;G11B7/2534;G11B7/2535;G11B7/254;G11B7/257;G11B7/2578;G11B7/258;G11B7/2585;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/0045 |
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