发明名称 |
Optical information recording medium |
摘要 |
An optical information recording medium including a substrate, a recording layer, and a cover layer in this order; wherein information is recorded or reproduced by irradiating a laser beam having an wavelength in the range of 380 to 500 nm on the recording layer through a lens having a numerical aperture NA of 0.7 or more; the recording layer includes an organic substance; and the extinction coefficient k of the recording layer is at least 0.1 and less than 0.3.
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申请公布号 |
US2003138592(A1) |
申请公布日期 |
2003.07.24 |
申请号 |
US20020305978 |
申请日期 |
2002.11.29 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
ISHIDA TOSHIO;KAKUTA TAKESHI;SAITO SHINJI |
分类号 |
G11B7/24;B32B3/02;G11B7/135;G11B7/244;G11B7/248;(IPC1-7):B32B3/02 |
主分类号 |
G11B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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