Optically variable security device

Details Optically variable security device Optically variable security device

B - Operations, Transporting

42

D

B42D 15/10 (2006.01) G02B 5/26 (2006.01) G02B 5/32 (2006.01) G03H 1/02 (2006.01)

Patent

CA 2402134

An optically variable security device comprising a thin film reflection filter structure (23) which exhibits a first optically variable effect; and a relief structure (20) on or in the thin film reflection filter structure which exhibits a second optically variable effect.

L'invention concerne un dispositif de sécurité variable du point de vue optique comprenant une structure de filtre de réflexion à couche mince (23) qui présente un effet variable du point de vue optique; et une structure de relief (20) disposée sur ou dans ladite structure de filtre de réflexion et qui présente un second effet variable du point de vue optique.

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