| SECURENCY INTERNATIONAL PTY LTD Patent applications |
| Patent application number | Title | Published |
|---|
| 20120033305 | METHODS FOR PRODUCING LENS ARRAYS - A lens array for imaging image elements in an object plane, and a method of making a lens array. The lens array includes lenslets formed in or on one side of a transparent or translucent material with the image elements disposed on the opposite side, and has a gauge thickness corresponding to the distance from the apex of each lenslet to the object plane. Each lenslet has a set of lens parameters. The gauge thickness and/or at least one lens parameter is or are optimised such that each lenslet has a focal point size in the object plane which is either substantially equal to the size of the image elements in the object plane, or varies from the size of the image elements by a predetermined amount. | 02-09-2012 |
| 20100253062 | BANKNOTE WITH EDGE WINDOWS - A security document comprising a sheet having a front surface, a rear surface and sides edges. The sheet includes one or more windows or half-windows formed from a transparent or translucent material. At least one of the windows or half-windows is an edge window or half-window which extends to at least one side edge region of the sheet, and the edge window or half-window includes one or more of the following features: a denominator; an independent security device; and/or a trigger feature. | 10-07-2010 |
| 20100195174 | Data Storage in a Diffractive Optical Element - A diffractive optical element (DOE) and various methods of producing such a DOE are provided in which a diffractive optical microstructure is formed with encrypted data on at least one side of a transparent substrate or in a layer applied to the substrate. The diffractive optical microstructure when illuminated with collimated light, generates a far field interference pattern corresponding to the encrypted data which may be decrypted with suitable optical detectors and processing equipment. | 08-05-2010 |
| 20100182698 | Security Documents with Personalised Images and Methods of Manufacture - A method of producing a personalized security document or article includes providing a substrate which is transparent at least to visible light. A diffractive optical microstructure is formed in a substantially opaque layer disposed on a surface of the substrate. The diffractive structure comprises a plurality of apertures formed in the opaque layer, such that when the structure is suitably illuminated, for example by a beam of collimated light, a projected image is generated which is unique to a particular individual. Also, personalized security documents or articles made in accordance with the method. | 07-22-2010 |
| 20100091268 | METHOD AND APPARATUS FOR INSPECTION OF SECURITY ARTICLES INCORPORATING A DIFFRACTIVE OPTICAL PROJECTION ELEMENT - A method and apparatus for inspection of a security article ( | 04-15-2010 |
| 20100060944 | METHODS OF PROTECTING SECURITY DOCUMENTS FROM COUNTERFEITING - A method of protecting a security document from counterfeiting includes applying at least one security element containing a concealed Fourier pattern to the document. The concealed Fourier pattern is produced from a master Fourier profile, and is applied to the document by embossing, engraving, laser ablation or chemical etching, and/or by a cylinder or plate bearing the master Fourier profile. When a counterfeit security document produced without knowledge of the master Fourier profile is scanned or imaged and subjected to a Fourier transform, the resulting test Fourier pattern will differ from a master Fourier pattern corresponding to the master Fourier profile for the authentic security document. In a particular embodiment, the concealed Fourier pattern is applied to the document by rotogravure printing. | 03-11-2010 |
