Patent ID: 8263292

Claim:
A method for producing counterfeit-proof documents with a reflection volume hologram applied thereon, comprising the following steps: laminating a photopolymer film onto a holographic master consisting of multiple holographic layers; subsequently copying all overlapping optical standard elements of the holographic master into the photopolymer film with only one laser copying beam to form a laser copy, removing the photopolymer film from the holographic master after the laser copy is developed or fixed with UV light, applying the exposed, developed photopolymer film to the document, and generating holographic personal data by a mask exposure before, during or after the application of the exposed, developed photopolymer film to the document, wherein the holographic personal data is generated by utilizing color tuning characteristics of a light-curable adhesive used for adhesive bonding to the document, and wherein in the step of generating holographic personal data, an optical mask, carrying individual data corresponding to the document, is used and the adhesive is exposed with light, the optical mask being subsequently removed and a further exposure being carried out over a whole surface, 5-300 sec after exposure through the optical mask, in order to completely harden the adhesive between the document and the reflection volume hologram.