Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Composite or multiple layer
Patent
1995-06-02
1997-08-26
Vargot, Mathieu D.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Composite or multiple layer
29897, 116 63R, 264 25, 425808, B29D 1100
Patent
active
056607687
ABSTRACT:
A retroreflective structure has a window side and a facet side. The facet side has a plurality of steps with treads and risers intersecting at an angle. The risers include an array of retroreflective elements. Preferably, the elements are cube-corner prisms. The method includes forming the structure by polymerizing a polymerizable material in a mold having a facet side including a tiered structure having a plurality of steps with treads and risers intersecting at an angle and wherein the risers include an array of retroreflective elements.
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Reflexite Corporation
Vargot Mathieu D.
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