Durable, open-faced retroreflective prismatic construction
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United States of America Patent
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app pub date -
Jan 18, 2005
filing date -
Jan 21, 1999
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Abandoned
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Abstract
Retroreflective sheeting and a method for making the same includes a plurality of open-faced cube-corner surfaces formed from a substantially rigid material to keep the cube-corner surfaces from flexing. A second plurality of open-faced cube-corner surfaces is formed from the substantially rigid material to keep the second plurality of open-faced cube-corner surfaces from flexing. The first and second open-faced cube-corner surfaces are configured to retroreflect light in opposite directions, that is, formed back-to-back in a particular embodiment. An optical coating can be formed on the surfaces. A plurality of voids forms the open-faced cube-corner surfaces. The retroreflective sheeting can be perforated in a particular embodiment.
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