发明名称 |
OPTICAL MEMORY MEDIUM AND MANUFACTURE THEREOF |
摘要 |
In an optical storage medium comprising a plurality of thin film layers overlying a reflective substrate the thicknesses of the layers are selected to provide an optimum optical performance in response to a plurality of light wavelengths, in particular maximum absorption at the write wavelength frequency, 15% reflectance at the focus-sensing wavelength and low reflectance at the coarse positioning wavelength. |
申请公布号 |
JPS60157741(A) |
申请公布日期 |
1985.08.19 |
申请号 |
JP19840194933 |
申请日期 |
1984.09.19 |
申请人 |
SUTOREEJI TEKUNOROJII CORP |
发明人 |
BORISU MAKUNITSUKU;ROBAATO RIIBEI;FURETSUDO SUPONGU;FURANKURIN KOOKU |
分类号 |
G11B7/24;G11B7/241;G11B7/243;G11B7/253;G11B7/257;G11B7/258;G11B7/26 |
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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