OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE
PURPOSE:To promote the reliability by providing a means for restricting an adjusting range by a direction adjusting means for adjusting light beam spots in the abreast direction of tracking tracks and setting a mutual distance between the light beam spots in one pair as not exceeding double the pitc...
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Main Author | |
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Format | Patent |
Language | English |
Published |
12.09.1990
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Subjects | |
Online Access | Get full text |
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