发明名称 |
Optisches Informationsaufzeichnungsmedium. |
摘要 |
An optical information recording medium comprising a light transmitting substrate, a light absorptive layer overlaying the substrate to absorb a laser beam and a light reflective layer overlaying the light absorptive layer, wherein an optical parameter represented by rho = nabsdabs/ lambda where nabs is the real part of the complex refractive index of the light absorptive layer, dabs is the thickness of the light absorptive layer and lambda is the wavelength of a reading laser beam, is 0.05 </= rho </= 0.6, and the imaginary part kabs of the complex refractive index of the light absorptive layer is at most 0.3. |
申请公布号 |
DE68923494(T3) |
申请公布日期 |
1999.10.28 |
申请号 |
DE1989623494T |
申请日期 |
1989.04.17 |
申请人 |
TAIYO YUDEN CO., LTD. |
发明人 |
HAMADA, EMIKO;ARAI, YUJI;SHIN, YUAKI;ISHIGURO, TAKASHI |
分类号 |
G11B7/0045;G11B7/24;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/0045 |
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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