发明名称 OPTICAL RECORDING DEVICE
摘要 PROBLEM TO BE SOLVED: To perform multivalue recording by forming a plurality of different pit patterns. SOLUTION: This optical recording device is provided with a laser light emitter 1 for emitting a linear polarized laser light, an electric optical element 4 for controlling the rotational direction of the polarized surface of the linear polarized laser light from the laser light emitter 1, an objective lens 6 for converging the linear polarized laser light passed through the electric optical element 4 and forming a light converging spot P on the recording surface 7a of an optical disk 7, and a driving motor 8 for rotating the optical disk 7 so as to move the light converging spot P on the recording surface while keeping the light converging spot P formed on the recording surface 7a.
申请公布号 JPH11219535(A) 申请公布日期 1999.08.10
申请号 JP19980022105 申请日期 1998.02.03
申请人 NIKON CORP 发明人 ARIMOTO RIEKO;MORITA SEIJI;OTAKI KATSURA
分类号 G11B7/125 主分类号 G11B7/125
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