Security document with a volume hologram forming a partial motif (US Patent 7699351)

Patent number: 7699351 Kind code: B2 Granted: 2010-04-20 Filed: 2004-08-27 Inventors: Rene Heierli (Winterthur, CH); Martin Eichenberger (Zollikon, CH) Assignees: KXO AG (Zug, CH)

Abstract

A security object has a substrate (1) carrying a first motif (6) and mutually aligned thereto a second motif (7). The first motif (6) is formed by a volume hologram (8) and visible under a given viewing condition only. The second motif (7) can e.g. be a dye, a surface hologram, a perforation or any other