CUBE CORNER TYPE RETROREFLECTION ARTICLE

摘要

A large number of pairs of cube corner retroreflection elements each formed of a groove group in three directions having a substantially V-shaped cross-section to become rotation symmetry by sharing one base forming a retroreflection element are arranged to form a retroreflection article. The retroreflection article is characterized in that the locus of the base of a parallel V-shaped groove group (x groove) in one direction forming that retroreflection element pair group is a line, the loci of the bases of parallel V-shaped groove groups (w1 groove and w2 groove) in the other two directions are continuous bent lines bending at the intersection with the x groove, wherein the loci of the bases of the parallel V-shaped groove groups in the two directions are formed not to intersect each other, and the projection shape of the base forming the retroreflection element is a quadrilateral (A-B-E1-D1 or A-B-E2-D2).