Patent application number | Description | Published |
20080225391 | Zero-order diffractive filter - A Zero-order diffractive filter comprising a first layer ( | 09-18-2008 |
20080259455 | Nano-structured zero-order diffractive filter - A zero order diffractive filter for polarised or unpolarised polychromatic light, comprises a grating line ( | 10-23-2008 |
20080278815 | ISOTROPIC ZERO-ORDER DIFFRACTIVE FILTER - The present invention relates to an isotropic zero-order diffractive colour filter, to a method to manufacture an embossing tool and to a method to manufacture such a filter. | 11-13-2008 |
20090008925 | SECURITY DEVICE FOR THE IDENTIFICATION OR AUTHENTICATION OF GOODS AND METHOD FOR SECURING GOODS USING SUCH A SECURITY DEVICE - A security device for the identification or authentication of goods is described. It comprises a stochastic pattern comprising structures having an average lateral structure size d and arranged such that an image of at least a part of the security device, when treated through 2D Fourier transformation and calculation of a corresponding Power Spectrum Density, may lead to a peak, in a spatial-frequency domain, having a position in this domain correlated to d and a size distribution value w which, when inverted, is correlated to a size distribution of the structures. The value w according to the invention is smaller than 2/d, so that when directing a coherent light beam on at least part of the structures a ring-shaped scattering speckle pattern is formed, on the basis of which d and w may be calculated to implement identification or authentication of the device. | 01-08-2009 |
20090257126 | ZERO-ORDER DIFFRACTIVE PIGMENTS - The present invention relates to pigments comprising or consisting of a layer made of a material with an index of refraction that is higher than the index of refraction of the adjacent material by at least 0.25; whereas said layer has a zero-order diffractive micro-structure; whereas said layer acts as an optical waveguide and whereas said layer has a thickness between 50 nm and 500 nm; to processes for its manufacture and to its use. These pigments show a colour effect upon rotation and/or tilting, and it is believed that this colour effect is based on zero-order diffraction. | 10-15-2009 |
20090263071 | Optical environmental sensor and method for the manufacturing of the sensor - A sensor which reacts on influences from an environment. The sensor includes a zero-order diffractive color filter. The zero-order diffractive color filter includes a high-index waveguide layer, a zero-order diffractive grating structure and a layer of an reactive material, wherein the reactive material is in contact with the environment and wherein the reactive material changes its optical properties upon interaction with the environment. The reactive material is embedded in the waveguide layer and/or the reactive material is located at a maximum distance d from the waveguide layer. The distancing is effected by an intra layer having a low index of refraction. | 10-22-2009 |
20090310905 | PRINTED CIRCUIT BOARD ELEMENT INCLUDING AN OPTOELECTRONIC COMPONENT AND AN OPTICAL WAVEGUIDE - The invention relates to a printed circuit board element ( | 12-17-2009 |
20100143467 | Pharmaceutical tablets with diffractive microstructure and compression tools for producing such tablets | 06-10-2010 |
20100315713 | ZERO-ORDER DIFFRACTIVE FILTER AND METHOD FOR MANUFACTURING THEREOF - The present invention discloses a method for manufacturing a zero-order diffractive filter comprising a high-index material having an upper surface and a lower surface. The high-index material is positioned between a first low-index matter and a second low-index matter; the lower surface is adjacent to said first low-index matter and the upper surface is adjacent to the second low-index matter. Moreover, the high-index material has an index of refraction that is higher than the index of refraction of both said first low-index matter and said second low-index matter. The method comprises at least the following procedure: selectively providing, by employing at least one wet-coating technique, at least one of the following at least partially: the high-index material onto said first low-index matter. | 12-16-2010 |
20110008399 | USE OF ZERO-ORDER DIFFRACTIVE PIGMENTS - The present invention relates to compositions such as coatings, printing inks or cosmetics, which contain pigments comprising or consisting of a layer made of a material with an index of refraction that is higher than the index of refraction of the adjacent material by at least 0.25; whereas said layer has a zero-order diffractive micro-structure; whereas said layer acts as an optical waveguide and whereas said layer has a thickness between 50 nm and 500 nm; to processes for its manufacture and to its use. These pigments show a colour effect upon rotation and/or tilting, and it is believed that this colour effect is based on zero-order diffraction. | 01-13-2011 |
20110091068 | Secure Tracking Of Tablets - A method of tracking and tracing tablets, in particular pharmaceutical tablets, includes reading, i.e. detecting, code structure from the tablet, reading additional information from the package on an information sheet, and then comparing the readings to verify authenticity. The code structure may be two-dimensional or three-dimensional. The detected code may further be compared with information stored in a database. | 04-21-2011 |
20110186629 | Method For The Authentication Of Dosage Forms - The present invention relates to a method for the authentication of dosage forms such as tablets, in particular pharmaceutical tablets, by reading, i.e. detecting, code structure from the tablet, reading additional information from the package or on an information sheet, and then comparing the readings to verify authenticity. The code structure may be randomized on a plurality of tablets disposed in identifiable locations in a shared package such that the detected code structures define a unique digital signature for the package of tablets. | 08-04-2011 |
20110188051 | Secure Tracking Of Tablets - The present invention relates to a verification method for tracking and tracing tablets, particularly pharmaceutical tablets. It further relates to a visible secure marking or information that is a part of such tablet ( | 08-04-2011 |
20110256069 | Pharmaceutical Moire Pill - A pharmaceutical dosage form [ | 10-20-2011 |
20110256219 | Manufacturing Solid Pharmaceutical Dosage Forms With Visible Micro- And Nanostructured Surfaces And Micro- And Nanostructured Pharmaceutical Dosage Form - A solid pharmaceutical dosage form [ | 10-20-2011 |
20110317268 | ZERO-ORDER DIFFRACTIVE PIGMENTS - The present invention relates to pigments comprising or consisting of a layer made of a material with an index of refraction that is higher than the index of refraction of the adjacent material by at least 0.25; whereas said layer has a zero-order diffractive micro-structure; whereas said layer acts as an optical waveguide and whereas said layer has a thickness between 50 nm and 500 nm; to processes for its manufacture and to its use. These pigments show a colour effect upon rotation and/or tilting, and it is believed that this colour effect is based on zero-order diffraction. | 12-29-2011 |
20120162770 | ISOTROPIC OPTICAL FILTER AND METHOD OF MANUFACTURING THEREOF - The present invention discloses an isotropic optical filter comprising high-index refraction material positioned between low-index-refraction matter. At least some of the high-index refraction material has a grated structure and lateral and vertical dimensions with respect to the low-index-refraction matter such that the high-index refraction material is operative to act as a leaky waveguide for light incident on the ZOF. The grated structure comprises at least two different grating patterns. Each of the at least two grating patterns constitutes a subpixel. A plurality of subpixels is operative to diffract incident light to at least two zero-order wavelength spectra respective of the at least two grating patterns such to exhibit an isotropic colour effect with respect to the rotational orientation of the isotropic optical filter. The plurality of subpixels constitute an isotropic pixel | 06-28-2012 |
20120199994 | APPARATUS AND METHOD FOR A SUB MICROSCOPIC AND OPTICALLY VARIABLE IMAGE CARRYING DEVICE - The present invention relates generally to an apparatus for embossing a flexible substrate. More specifically, the present invention relates to an apparatus for embossing a curable composition coated flexible substrate with an optically variable image transferred from an embossing foil, especially belt, or sheet of an optically transparent fluoropolymer. The optically variable image is irradiated through the embossing belt, or sheet with ultra-violet light contemporaneously with the embossing so that the transferred imprint pattern cures, hardens, and retains its shape. | 08-09-2012 |
20130044375 | Security Device With A Zero-Order Diffractive Microstructure - A security Device comprises a zero order diffractive microstructure ( | 02-21-2013 |
20130301131 | Security Device With a Zero-Order Diffractive Microstructure - A security Device comprises a zero order diffractive microstructure ( | 11-14-2013 |
20140170737 | STACKABLE MICRO-FLUIDIC CELLS - An assay assembly that includes an assay bar having a plurality flow cells is disclosed. Each of the flow cells includes an inlet, an outlet, and an inside surface defining an inner volume. The outlet includes a valve that is configured to retain liquid within the inner volume of the flow cell. Each assay bar is configured to be reversibly stacked upon another assay bar, such that the flow cells of the stacked assay bars are in fluid communication with each other. This way, the outlet of a first flow cell of a first assay bar is in fluid communication with the inlet of a second flow cell of a second assay bar. The assay assembly may include a multitude of assay bars to form a composite assay assembly, with the flow cells of the stacked assay bars being in fluid communication with each other. | 06-19-2014 |
20140255482 | Manufacturing Solid Pharmaceutical Dosage Forms With Visible Micro- And Nanostructured Surfaces And Micro- And Nanostructured Pharmaceutical Dosage Form - A solid pharmaceutical dosage form [ | 09-11-2014 |
20140353381 | 3D LASER CODING IN GLASS - This inventive method assures the authenticity of drugs or other valuable substances that reside within product containers, such as syringes. The method includes initially measuring the 3D topology of the glass surface while determining the distance to the glass surface. Thereafter, a desired 3D code is written below the glass surface with a pulsed laser system. The written 3D code is readable using optical coherence topography (OCT) or parallel optical coherence tomography (pOCT) to verify the authenticity of the product container. A system uses this method with a plurality of syringes held within a tray, and a writing apparatus that moves relative to the tray to write a predetermined 3D code on each of the syringes held in the tray, during processing of the syringes along a process line while in the tray. | 12-04-2014 |