| 发明名称 |
Optical disk and method of apparatus for reproducing data from the same optical disk |
| 摘要 |
The thickness of the transparent substrate of an optical disk has been selected from the range from 0.2 mm to 0.4 mm. The wavelength of a light beam passing through the transparent substrate has been selected from the range from 400 to 420 nm. The numerical aperture of an objective for converging the light beam has been selected from the range from 0.60 to 0.75.
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| 申请公布号 |
US2001012257(A1) |
申请公布日期 |
2001.08.09 |
| 申请号 |
US20010814700 |
申请日期 |
2001.03.23 |
| 申请人 |
SUZUKI KATSUMI;YOSHIZAWA TAKASHI |
发明人 |
SUZUKI KATSUMI;YOSHIZAWA TAKASHI |
| 分类号 |
G11B7/00;G11B7/005;G11B7/125;G11B7/24;G11B7/243;G11B7/253;G11B7/2534;G11B7/254;G11B7/257;G11B7/258;G11B7/2585;G11B7/26;(IPC1-7):G11B7/003;G11B7/135 |
主分类号 |
G11B7/00 |
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