Manufacturing method for multilayer fluorescent information carriers
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United States of America Patent
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-
Jun 5, 2007
Grant Date -
Dec 6, 2001
app pub date -
Jan 18, 2001
filing date -
Jan 18, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An information layer for an optical information storage medium is formed in a centrifuge. A photopolymerizable composition is applied to a solid base having a relief pattern, and a flexible, transparent film layer is applied on top of the composition. The three are spun in a centrifuge to cause a thin, even distribution of the photopolymerizable composition, which is photopolymerized. The resulting replica is separated from the relief pattern and has a fluorescent material applied thereto. Alternatively, the replica has a non-fluorescent material applied thereto, and the non-fluorescent material is made fluorescent through diffusion. Multiple information layers thus formed can be glued together to form a multilayer optical information storage medium.
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