A prismatic retroreflective article and a method for making same. The retroreflective article can include a transparent polymeric body portion, an optical layer coupled to the body portion, and an image layer coupled to the body portion opposite the optical layer. The image layer can define imaged portions...http://www.google.ca/patents/US7547105?utm_source=gb-gplus-sharePatent US7547105 - Prismatic retroreflective article with cross-linked image layer and method of making same