Security document with transparent windows

Details Security document with transparent windows Security document with transparent windows

2011-04-26

2011-04-26

Ross, Dana (Department: 3725)

Printed matter

Having revealable concealed information, fraud preventer or...

By mating or cooperating separable components

C283S070000, C283S072000, C283S074000, C283S094000, C283S099000, C283S901000

Reexamination Certificate

active

07931305

ABSTRACT:
The invention concerns a security document (1) comprising a transparent window (12) in which a first optical element (15) is arranged and a second transparent window (13) in which a second optical element (16) is arranged. The first transparent window (12) and the second transparent window (13) are arranged on a carrier (11) of the security document (1) in mutually spaced relationship in such a way that the first and the second optical elements (15, 16) can be brought into overlapping relationship with each other. The first optical element (15) has a first transmissive microlens field and the second optical element (16) has a second transmissive microlens field, wherein a first optical effect is produced upon overlap of the second microlens field with the first microlens field.

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