Title:
OPTICALLY VARIABLE ELEMENT COMPRISING A PARTIALLY TRANSPARENT ELEMENT
Document Type and Number:
WIPO Patent Application WO2003095227
Kind Code:
A8
Abstract:
An optically variable element, in particular an optically variable safeguard element for safeguarding banknotes, credit cards and the like, and a security product and a foil, in particular an embossing foil or a laminating foil, having such an optically variable element. The optically variable element has a thin film for producing color shifts by means of an interference and/or a reflective layer. The optically variable element further has a transparent window and the thin film and/or the reflective layer is respectively in the form of a partial element, namely a partial thin film element or a partial reflective element, wherein the partial element or elements surround the surface region of the transparent window.
Inventors:
WILD HEINRICH (DE)
BREHM LUDWIG (DE)
BREHM LUDWIG (DE)
Application Number:
PCT/EP2003/004022
Publication Date:
December 29, 2004
Filing Date:
April 17, 2003
Export Citation:
Assignee:
KURZ LEONHARD FA (DE)
WILD HEINRICH (DE)
BREHM LUDWIG (DE)
WILD HEINRICH (DE)
BREHM LUDWIG (DE)
International Classes:
B41M3/14; B42D25/21; G02B5/18; G02B5/32; G07D7/12; (IPC1-7): B42D15/10
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