发明名称 |
Optical disk and method for producing the same |
摘要 |
An optical disk of the present invention includes a substrate and a recording layer disposed above the substrate, and reproduces an information signal by a DWDD system, using light incident from the substrate side. The optical disk further includes a first dielectric layer disposed between the substrate and the recording layer and a second dielectric layer disposed on the recording layer opposite to the substrate, wherein the recording layer is initialized with light having a wavelength lambd incident from the second dielectric layer side, and the thickness of the second dielectric layer is in a range of lambd/(12xn) to lambd/(2xn) (where n is a refractive index of the second dielectric layer).
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申请公布号 |
US2002058120(A1) |
申请公布日期 |
2002.05.16 |
申请号 |
US20010038189 |
申请日期 |
2001.10.24 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
UCHIDA KIYOSHI;HINO YASUMORI;MURAKAMI MOTOYOSHI;MIYATAKE NORIO |
分类号 |
B32B3/02;G11B11/105;(IPC1-7):B32B3/02 |
主分类号 |
B32B3/02 |
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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