公开(公告)号：US11607901B2

公开(公告)日：2023-03-21

申请号：US17275162

申请日：2019-09-10

申请人： CRANE & CO., INC.

发明人： Samuel M. Cape ,  Karin Mörck-Hamilton ,  Fredrik Von Blixen-Finecke ,  Jason Van Gumster ,  Jennifer Cowan ,  Ryan Toole ,  Gunnar Nehls ,  Kara Zona ,  Jonathan D. Gosnell ,  Benjamin E. Bleiman

IPC分类号： B42D25/29 ,  B42D25/324 ,  B42D25/342 ,  B42D25/351 ,  B42D25/45

摘要： A security document (200) includes a secure substrate (205). The secure substrate includes a viewing side (209) and a backing side (211), and a micro-optic system (305, 321) providing an optically variable effect (OVE) (513) on the viewing side. The security document further includes a protective layer (225), and a mask layer (215) disposed between the protective layer and the backing side of the secure substrate.