OPTICAL PICK-UP METHOD AND DEVICE FOR MULTILAYER RECORDING MEDIUM
An optical pick-up method and device for multilayer recording medium using a source of reading radiation, a detector of reflected signal, an optical system for focusing the reading radiation into information layer and said detector of reflected signal, an arrangement for focusing and tracking contro...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
11.11.2009
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Subjects | |
Online Access | Get full text |
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Summary: | An optical pick-up method and device for multilayer recording medium using a source of reading radiation, a detector of reflected signal, an optical system for focusing the reading radiation into information layer and said detector of reflected signal, an arrangement for focusing and tracking control and means for suppression interference of layers reflected signals. |
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Bibliography: | Application Number: EP20050857344 |