G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/122 (2006.01) G02B 5/124 (2006.01)
Patent
CA 2224001
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.
La présente invention concerne des articles rétroréfléchissants en coin de cube améliorés, qui présentent une grande variété d'angles de projection rétroréfléchissants dans au moins un plan et, de préférence, deux plans ou plus. L'article selon la présente invention possède une surface structurée comprenant au moins une rangée d'éléments en coin de cube formés de trois ensembles se croisant, constitués de stries pratiquement parallèles. Chaque élément en coin de cube formés de trois ensembles se croisant, constitués de stries pratiquement parallèles. Chaque élément en coin de cube comprend un triangle de base relié par une strie de chacun des trois ensembles de stries se croisant, le triangle de base étant un triangle scalène.
Benson Gerald M.
Smith Kenneth L.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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