| 摘要 |
A method for producing a security feature (106; 302; 304) for a document, comprising the following steps: providing a document blank, wherein the document blank has at least one document layer (101; 102), wherein at least one document layer (101; 102) extends over the entire document area, wherein the at least one document layer (101; 102) is light-absorbent in at least one first spatial area in at least one first wavelength range and transparent in at least one second spatial area in at least one second wavelength range of visible light, wherein the at least one document layer (101; 102) also has at least one optical document-nonspecific security feature, implementing a document-individual surface structure (106) in the first area of the at least one document layer (101; 102) by absorption of at least one laser beam, wherein the at least one laser beam has a wavelength in the first wavelength range, wherein the surface structure (106) is implemented to depict a hologram (112), which forms the document-individual security feature (106; 302; 304). |
