PROTECTIVE ELEMENT FOR IDENTIFICATION OF DOCUMENT, IDENTIFICATION DOCUMENT AND METHOD FOR ITS PERSONALIZING Russian patent published in 2016 - IPC B42D25/435 

FIELD: safety devices.

SUBSTANCE: invention relates to protection against counterfeit identification documents, bank cards, including multilayer polymer structures with protective features. Proposed is a protective element for an identification document containing a multilayer polymer structure with a screened image having an optically variable effect. Multilayer polymer structure comprises two laser-sensitive layers, herewith in the upper laser-sensitive layer there are two or more different screened personalization images, and in the lower laser-sensitive layer there is a linear raster with a specified spatial period equal to the spatial period of the personalization images in the upper layer. Upper and lower laser-sensitive layers are located at a distance from each other determined by resolution of the images, herewith when viewing the protective element at different angles various personalization images are visible. Method of personalizing an identification document includes formation of various personalization images in the laser-sensitive layers by local carbonization.

EFFECT: formation of several personalization images in multilayer transparent polymer structures and providing the possibility of recording the images in the process of personalizing documents.

5 cl, 1 dwg