公开(公告)号：US20240336082A1

公开(公告)日：2024-10-10

申请号：US18624218

申请日：2024-04-02

申请人： IDEMIA FRANCE

发明人： Marie MAZZOLINI ,  Coralie VANDROUX ,  Benoît BERTHE

IPC分类号： B42D25/346 ,  B42D25/23 ,  B42D25/373 ,  B42D25/435 ,  B42D25/45 ,  G02B3/00

CPC分类号： B42D25/346 ,  B42D25/373 ,  B42D25/435 ,  B42D25/45 ,  G02B3/005 ,  G02B3/0056 ,  B42D25/23

摘要： The present invention relates to a secure document and to a method for manufacturing a secure document. The secure document comprises:



a metal layer or metal oxide layer,
a lenticular array comprising converging lenses positioned facing the metal layer or metal oxide layer,
at least one transparent layer on which the metal layer or metal oxide layer is arranged such that said metal layer or metal oxide layer is interposed between the lenticular array and the transparent layer;
wherein the metal layer or metal oxide layer comprises perforations formed by focusing a plurality of laser radiations through the lenticular array onto the metal layer or metal oxide layer, the plurality of laser radiations being directed at a plurality n of angles of incidence in order to form said perforations so as to reveal n personalized images when the secure document is observed at the n angles of incidence,
said perforations being produced in contiguous or overlapping perforation areas so as to form visual continuity between the n personalized images when said document is tilted.

公开(公告)号：US20240278591A1

公开(公告)日：2024-08-22

申请号：US18570484

申请日：2022-06-15

申请人： IDEMIA FRANCE

发明人： Benoît BERTHE ,  Coralie VANDROUX ,  Marie MAZZOLINI

IPC分类号： B41M5/24 ,  B41M3/14 ,  G02B3/00

CPC分类号： B41M5/24 ,  B41M3/148 ,  G02B3/0075

摘要： Forming a 3D image using a lenticular structure includes a carrier layer having an arrangement of color sub-pixels and a lenticular array comprising convergent lenses facing the sub-pixels. A method includes performing visual inspection of the lenticular structure, during which sub-pixels viewable through the lenses are detected for a plurality of viewing directions; determining, based on the color of the sub-pixels detected for each viewing direction, grayscale levels required to reveal M images viewable through the lenticular array in the M viewing directions, respectively; and customizing the sub-pixel arrangement, during which the grayscale levels are engraved facing the sub-pixels in the carrier layer by focus of laser radiation through the lenses.