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Pick-up for selectively reading and writing an optical recording medium having pits and magnetic domains
Pick-up for selectively reading and writing an optical recording medium having pits and magnetic domains
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机译:拾取器,用于选择性地读取和写入具有凹坑和磁畴的光学记录介质
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摘要
The beam of light reflected from an optico-magnetic recorded medium is reflected by an optical pick-up onto one optical or another in accordance with the direction that the beam's plane of polarization is rotated in. A data signal is obtained from the difference in the photovoltages of the two photodetectors.
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