Security device

B - Operations – Transporting – 42 – D

Patent

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Details

B42D 15/10 (2006.01) B41M 3/14 (2006.01) B44F 1/12 (2006.01)

Patent

CA 2406069

A security device comprising a plurality of sets of nested line segments, each set comprising a plurality of line segments (52) which are specularly reflective or have a specularly reflective component formed as a relief structure in or on a surface, the sides (70) of the line segments extending at angles offset from the normal to the surface. When the line segments (52) are exposed to a light beam in an exposure direction, an image is generated different from the appearance of the line segments when viewed under different illumination conditions.

La présente invention concerne un dispositif de sécurité comprenant une pluralité d'ensembles de segments linéaires imbriqués, chaque ensemble comprenant une pluralité de segments linéaires (52) qui sont spéculairement réfléchissants ou comprennent des éléments spéculairement réfléchissants se présentant sous la forme d'une structure en relief formée dans ou sur surface, les côtés (70) des segments linéaires s'étendant selon des angles décalés par rapport à la normale à la surface. Lorsque les éléments linéaires (52) sont exposés à un faisceau lumineux dans une direction d'exposition, une image est produite, ladite image ayant des segments linéaires d'apparence différente lorsque ceux-ci sont visualisés dans des conditions d'éclairage différentes.

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