G - Physics – 03 – H
Patent
G - Physics
03
H
G03H 1/20 (2006.01) B42D 15/10 (2006.01) G03H 1/26 (2006.01)
Patent
CA 2645246
Described is a method for producing a multi-layer body having a volume hologram with at least two different image information items, wherein a photosensitive layer (46) of the multi-layer body is brought into contact with the front side of a master (44) directly or by interposing a transparent optical medium (44s, 45), into which front side nested areas with different asymmetrical surface structures or kinoform structures are formed which embody the at least two different image information items. The photosensitive layer (46) and the master are exposed using a coherent light beam (47), by means of which a volume hologram is formed in the photosensitive layer (46). A master for producing the multi-layer body and a security element with said multi-layer body are further described.
La présente invention concerne un procédé de fabrication d'un corps multicouche qui comporte un hologramme volumique avec au moins deux informations d'image différentes, une couche photosensible (46) du corps multicouche étant mise en contact directement ou en intercalant un support optique transparent (44s, 45) avec la face avant d'une matrice (44) dans laquelle des zones imbriquées avec des structures de surface asymétriques différentes ou des structures kinoformes sont reproduites, ces structures constituant lesdites au moins deux informations d'images différentes. La couche photosensible (46) et la matrice sont exposées à un faisceau de lumière cohérent (47), réalisant ainsi un hologramme volumique dans la couche photosensible (46). L'invention concerne en outre une matrice de fabrication du corps multicouche ainsi qu'un élément de sécurité comportant ledit corps multicouche.
Brehm Ludwig
Hansen Achim
Schilling Andreas
Staub Rene
Tompkin Wayne Robert
Gowling Lafleur Henderson Llp
Ovd Kinegram Ag
LandOfFree
Multi-layer body with volume hologram does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-layer body with volume hologram, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-layer body with volume hologram will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1648118