Patents by Inventor Alexander Stuck
Alexander Stuck has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130301131Abstract: A security Device comprises a zero order diffractive microstructure (5) buried within a substrate (3). One or more further optical structures, such as microlenses (1), may be formed on a surface (2) of the substrate (3). The further optical structures modify the optical characteristics of the zero order diffractive microstructure (5). Various alternatives or additional optical structures and methods of producing them are described in additional embodiments.Type: ApplicationFiled: May 13, 2013Publication date: November 14, 2013Applicant: CSEM Centre Suisse d Electronique et de Microtechnique S.A.Inventors: Marc Schnieper, Alexander Stuck, Harald Walter
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Patent number: 8542442Abstract: The present invention relates to an isotropic zero-order diffractive color filter, to a method to manufacture an embossing tool and to a method to manufacture such a filter. The zero-order diffractive color filter comprises diffractive microstructures and a wave-guiding layer, wherein the diffractive microstructures possess a short range ordering over at least four times the period of the microstructures, and the diffractive microstructures possess a long range disordering over length scales of more than 100 ?m.Type: GrantFiled: May 7, 2008Date of Patent: September 24, 2013Assignee: Centre Suisse d'Electronique et de Microtechnique SA—Recherche et DeveloppementInventors: Nicolas Blondiaux, Mickaël Guillaumee, Raphaël Pugin, Ross Stanley, Alexander Stuck, Harald Walter
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Patent number: 8441727Abstract: A security Device comprises a zero order diffractive microstructure (5) buried within a substrate (3). One or more further optical structures, such as microlenses (1), may be formed on a surface (2) of the substrate (3). The further optical structures modify the optical characteristics of the zero order diffractive microstructure (5). Various alternatives or additional optical structures and methods of producing them are described in additional embodiments.Type: GrantFiled: August 21, 2012Date of Patent: May 14, 2013Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique S.A.Inventors: Marc Schnieper, Alexander Stuck, Harald Walter
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Patent number: 8417078Abstract: The invention relates to a printed circuit board element (10) including at least one optoelectronic component (1) which is embedded in an optical, photopolymerizable layer material (13), and at least one optical waveguide (14) optically coupled thereto, which is structured in the optical, photopolymerizable material (13) by photon irradiation, wherein the component (1) comprises a curved deflection mirror (5) on its light transmission surface (3), which curved deflection mirror deflects the light radiation (15), for instance by 90°.Type: GrantFiled: May 8, 2007Date of Patent: April 9, 2013Assignee: AT & S Austria Technologie & Systemtechnik AktiengesellschaftInventors: Markus Riester, Gregor Langer, Alexander Stuck
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Publication number: 20130044375Abstract: A security Device comprises a zero order diffractive microstructure (5) buried within a substrate (3). One or more further optical structures, such as microlenses (1), may be formed on a surface (2) of the substrate (3). The further optical structures modify the optical characteristics of the zero order diffractive microstructure (5). Various alternatives or additional optical structures and methods of producing them are described in additional embodiments.Type: ApplicationFiled: August 21, 2012Publication date: February 21, 2013Applicant: CSEM Centre Suisse d Electronique et de Microtechnique S.A.Inventors: Marc Schnieper, Alexander Stuck, Harald Walter
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Patent number: 8323623Abstract: A pharmaceutical dosage form [11, 11g] has reduced susceptibility to counterfeiting, due to the forming directly thereon of a pattern or base layer [10, 10g] of a Moiré pair, wherein a Moiré effect is visually observable by looking through a revealing layer [12, 12g] positioned closely to and superimposed on the base layer [10, 10g]. The pattern fanned on the pharmaceutical dosage form [11, 11g] may be formed by embossing, oblation, inkjet printing, or tampon printing. The revealing layer [12, 12g] of the Moiré pair can be part of a blister package containing the pharmaceutical dosage form [11, 11g], so that the Moiré effect is observable while looking at the pharmaceutical dosage form [11, 11g] as it remains within the package.Type: GrantFiled: April 16, 2010Date of Patent: December 4, 2012Assignee: I-Property Holding Corp.Inventors: Stefan Klocke, Harald Walter, Alexander Stuck
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Patent number: 8270050Abstract: A security device comprises a zero order diffractive microstructure buried within a substrate. One or more further optical structures, such as microlenses, may be formed on a surface of the substrate. The further optical structures modify the optical characteristics of the zero order diffractive microstructure such as by enhancing or reducing the color effect produced by the zero-order diffractive microstructure upon tilting the security device.Type: GrantFiled: August 3, 2005Date of Patent: September 18, 2012Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique S.A.Inventors: Marc Schnieper, Alexander Stuck, Harald Walter
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Patent number: 8259201Abstract: A color image sensor has a plurality of pixels. On the pixels zero-order diffractive color filters (DCFs) (1) are arranged. Different zero-order DCFs (1), e.g., DCFs (1) transmitting red, green and blue light, respectively, are allocated to the pixels of the color image sensor. The use of DCFs (1) for color imaging devices brings better defined band-pass or notch filters than the presently used lacquers. The DCFs (1) are more stable with respect to time, temperature and any environmental aggression. The manufacture of the DCF pattern is simpler and cheaper than that of a conventional dye-filter pattern, since the different types of DCFs can be manufactured simultaneously.Type: GrantFiled: June 28, 2006Date of Patent: September 4, 2012Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SAInventors: Alexander Stuck, Marc Schnieper
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Publication number: 20120199994Abstract: 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.Type: ApplicationFiled: August 9, 2010Publication date: August 9, 2012Applicant: BASF SEInventors: Michelle Richert, David R. Boswell, Mark Robert Dicker, Alexander Stuck
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Publication number: 20120162770Abstract: 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.Type: ApplicationFiled: October 31, 2011Publication date: June 28, 2012Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et DéveloppementInventors: Harald Walter, Alexander Stuck
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Publication number: 20110317268Abstract: 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.Type: ApplicationFiled: June 30, 2011Publication date: December 29, 2011Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et DeveloppementInventors: Harald Walter, Alexander Stuck
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Publication number: 20110256219Abstract: A solid pharmaceutical dosage form [19] has micro- or nanostructures [10a, 10b, 10c, 10d] impressed on the surface thereof or an interface thereof. The dosage form [19] includes a suitable quantity and distribution of ingredients, such as one or more dyes, so as to enhance the optical contrast effect, C, caused by the micro- or nanostructures so that the micro- or nanostructures are observable by the human eye and thereby able to provide anti-counterfeiting characteristics to the dosage form.Type: ApplicationFiled: April 16, 2010Publication date: October 20, 2011Applicant: I-Property Holding Corp.Inventors: Stefan Klocke, Harald Walter, Alexander Stuck
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Publication number: 20110256069Abstract: A pharmaceutical dosage form [11, 11g] has reduced susceptibility to counterfeiting, due to the forming directly thereon of a pattern or base layer [10, 10g] of a Moiré pair, wherein a Moiré effect is visually observable by looking through a revealing layer [12, 12g] positioned closely to and superimposed on the base layer [10, 10g]. The pattern fanned on the pharmaceutical dosage form [11, 11g] may be formed by embossing, oblation, inkjet printing, or tampon printing. The revealing layer [12, 12g] of the Moiré pair can be part of a blister package containing the pharmaceutical dosage form [11, 11g], so that the Moiré effect is observable while looking at the pharmaceutical dosage form [11, 11g] as it remains within the package.Type: ApplicationFiled: April 16, 2010Publication date: October 20, 2011Applicant: I-PROPERTY HOLDING CORP.Inventors: Stefan Klocke, Harald Walter, Alexander Stuck
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Publication number: 20110186629Abstract: 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.Type: ApplicationFiled: January 20, 2011Publication date: August 4, 2011Applicant: I-PROPERTY HOLDING CORPInventors: Alexander Stuck, Stefan Klocke, Thomas Gering
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Publication number: 20110188051Abstract: 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 (10). The invention further relates to tablets suitable for such verification method, processes for manufacturing such tablets, and methods for reading the information.Type: ApplicationFiled: January 20, 2011Publication date: August 4, 2011Applicant: I-PROPERTY HOLDING CORPInventors: Alexander Stuck, Stefan Klocke
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Patent number: 7974010Abstract: 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 color effect upon rotation and/or tilting, and it is believed that this color effect is based on zero-order diffraction.Type: GrantFiled: March 8, 2007Date of Patent: July 5, 2011Assignee: CSEM Centre Suisse d'Electrique et de Microtechnique SA—Recherche et DeveloppementInventors: Harald Walter, Alexander Stuck
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Publication number: 20110091068Abstract: 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.Type: ApplicationFiled: July 22, 2010Publication date: April 21, 2011Applicant: I-PROPERTY HOLDING CORPInventors: Alexander Stuck, Stefan Klocke
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Publication number: 20110008399Abstract: 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.Type: ApplicationFiled: November 19, 2008Publication date: January 13, 2011Applicant: BASF SEInventors: Philippe Bugnon, Hans Reichert, Alexander Stuck, Harald Walter
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Patent number: 7864424Abstract: One or more zero-order diffractive pigments (ZOP) having both a particle distribution matrix material, and a layer of material in or on such a matrix material and having an index of refraction higher than that of the matrix material, and having a diffractive grating structure with a period in the range of 100 to 600 nm, which is smaller than the wavelength of light reflectable thereby in the zeroth reflection order. In such ZOPs the index of refraction of the matrix material is usually at least 0.25 less than that of the material of the layer, and the layer is typically of a thickness between 30 and 500 nm.Type: GrantFiled: May 31, 2007Date of Patent: January 4, 2011Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et DéveloppementInventors: Alexander Stuck, Harald Walter
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Publication number: 20100315713Abstract: 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.Type: ApplicationFiled: June 15, 2010Publication date: December 16, 2010Inventors: Harald Walter, Alexander Stuck