Prismatic retroreflector having a multi-plane facet

摘要: A retroreflective structure includes a sheeting having an array of transparent prisms formed into pairs prisms. Each prism base aperture and three intersecting lateral faces meeting at apex. the edge which forms portion perimeter aperture. The each face intersects contiguous to form point, first least one in including planar surface second surface. are along end points, wherein apex, point coplanar continuous from