SECURITY FEATURE UTLIZING HINGE MATERIAL AND BIODATA PAGE

摘要

An article may include a flexible hinge comprising a first optical feature. The article also may include a biodata page comprising a second optical feature. The flexible hinge may be attached to a surface of the biodata page, and the second optical feature is substantially aligned with the first optical feature. The combination of the first optical feature and the second optical feature provides an optical effect, which may be destroyed or damaged if the flexible hinge is moved relative to the biodata page, e.g., if the flexible hinge is separated from the biodata page.