发明名称 OPTICAL RECORDING MEDIUM AND ITS PRODUCTION
摘要 PROBLEM TO BE SOLVED: To improve reproduction characteristics and to lessen the occurrence of errors by sticking a pair of substrates formed with information surfaces on one substrate by intervening a film specified in its thickness in-between. SOLUTION: This optical recording medium is constituted by mating the first and second substrates 1, 2 formed with the first and second information surfaces 13 and 14 via a transparent intermediate spacing 23. The multi-layered optical recording medium constituted in such a manner has the transparent intermediate spacing as thick as, for example, 40μm in the thickness between the information surfaces. The multilayered optical recording medium having the excellent optical recording and reproducing characteristics and lessens the occurrence of errors, i.e., has the excellent optical characteristics is thus obtd.
申请公布号 JPH09161318(A) 申请公布日期 1997.06.20
申请号 JP19950323256 申请日期 1995.12.12
申请人 SONY CORP 发明人 OKI YUTAKA;KASHIWAGI TOSHIYUKI
分类号 G11B7/24;G11B7/26 主分类号 G11B7/24
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