- May 20, 2024A part of the production process of many security papers that uses pressure through a wire mesh to form designs…
- May 20, 2024A method of making copy-evident and tamper-resistant patterns in the background of a document. Normally these are invisible to the…
- May 20, 2024Refers to holograms where the thickness of the recording material is much larger than the wavelength of light used for…
- May 20, 2024An image in paper produced by varying the thickness and density of the paper mass during paper production. These variations…
- May 20, 2024Wavelengths within the visible spectrum of 380nm-740nm.
- May 20, 2024The reformation of cellulose to give a textile fibre that may carry security features and be embedded into security paper.
- May 20, 2024A cryptographically signed data structure containing document features, encoded as a 2D barcode and printed on a document. The use…
- May 20, 2024A permission to enter the territory of a country. Can be in the form of a sticker with a multilevel…
- May 20, 2024The process of verifying specific identity, document or product attributes, or determining the authenticity of credentials in order to give…
- May 20, 2024Unlike raster images, a vector is not composed of separate dots (pixels). Vector graphics are composed of control points with…