Patent ID: 8726551

Claim:
A retroreflective article having flat areas and raised areas, the article comprising a substrate and a retroreflective film having a rear surface adhered to a front surface of the substrate; wherein: the substrate has a flat area corresponding to the flat area and raised areas corresponding to the raised areas; the retroreflective film has a flat area corresponding to the flat area to enhance the visibility of the retroreflective article, and raised areas corresponding to the raised areas; the raised areas have a height in the range of about 0.3 mm to about 3 mm relative to the flat areas, the retroreflective film comprises a prismatic layer having retroreflective prism elements formed on its rear surface; the retroreflective film comprises a reflective layer positioned adjacent the rear surface of the prismatic layer and a cover layer, the cover layer is the frontmost layer positioned in front of the prismatic layer to protect the reflective layer and the prismatic layer; the retroreflective film has an elongation of at least 20%; and the substrate has a visible light transmission of less than 30% and/or wherein a layer of the film positioned rear of the prismatic layer has a visible light transmission of less than 30%.