Cube-corner retroreflective articles having tailored divergence profiles
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United States of America Patent
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Oct 4, 1988
Grant Date -
N/A
app pub date -
Nov 21, 1986
filing date -
Nov 21, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Cube-corner retroreflective article having improved divergence profiles. The three lateral reflecting faces of the cube-corner retroreflective elements are formed by three intersecting sets of parallel V-shaped grooves, and at least one of the sets includes, in a repeating pattern, at least two groove side angles that differ from one another. Thereby the array of cube-corner retroreflective elements is divided into repeating sub-arrays that each comprise a plurality of cube-corner retroreflective elements in a plurality of distinctive shapes that retroreflect incident light in distinctively shaped light patterns.
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