Laminae suitable for use in a mold suitable for use in forming retroreflective sheeting and methods of making such laminae are disclosed. A representative lamina includes a single row of optically opposing cube corner elements disposed on its working surface. The working surface of a lamina is provided...http://www.google.ca/patents/US5981032?utm_source=gb-gplus-sharePatent US5981032 - Retroreflective cube corner sheeting mold and sheeting formed therefrom
