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Application filed by Minnesota Mining & MfgfiledCriticalMinnesota Mining & Mfg
Publication of MX9709540ApublicationCriticalpatent/MX9709540A/en
Publication of MXPA97009540ApublicationCriticalpatent/MXPA97009540A/en
The present invention provides improved cube corner retroreflective articles which exhibit a wide range of retroreflective entrance angularity in at least one plane, and preferably in two or more planes. An article in accordance with the present invention includes a structured surface having at least one array of cube corner elements formed by three intersecting sets of substantially parallel grooves. Each cube corner element includes a base triangle bonded by one groove from each of the three intersecting groove sets, the base triangle being scalene.
MXPA/A/1997/009540A1995-06-091997-12-04Retrorreflector article of cubic corners that holds scalene triangles b
MXPA97009540A
(en)