Patents by Inventor Rainer Hagen
Rainer Hagen 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: 20190171160Abstract: The present invention concerns a method for the production of a moulded body containing at least one volume hologram by means of injection moulding, comprising the following method steps: provision of a hologram film composite having two sides comprising at least one photopolymer layer with at least one volume hologram, a shear protective layer and a substrate layer, and optionally, further composite film layers, insertion of the hologram film composite into a metallic injection mould, such that one side of the hologram film composite is at least partially in contact with the injection mould wall, introduction of a molten thermoplastic polymer for the production of the moulded body, wherein at least the outermost layer of the hologram film composite on the side of the hologram film composite coming into contact with the molten polymer contains essentially the same polymer raw materials as the molten thermoplastic polymer, and extrusion coating of the hologram film composite with the molten thermoplastic poType: ApplicationFiled: August 10, 2017Publication date: June 6, 2019Inventors: Rainer HAGEN, Thomas FÄCKE, Enrico ORSELLI, Ute FLEMM, Ulrich GROSSER
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Patent number: 10254465Abstract: The invention relates to an illumination device for illuminating at least one light modulator system of a liquid crystal display, the device comprising at least one waveguide substrate for guiding at least one targeted light beam that can be coupled into the waveguide substrate. The waveguide substrate is at least in optical contact with at least one holographic optical decoupling substrate comprising a plurality of decoupling regions and a decoupling region is at least designed to decouple part of the targeted light beam in the form of a plurality of sub-beams in the direction of the light modulator system. At least one diffuser module is provided, said diffuser module being designed in such a way that at least the outermost sub-beams of two neighboring decoupling regions are at least adjacent to one another before exiting the diffuser module.Type: GrantFiled: August 9, 2013Date of Patent: April 9, 2019Assignee: Covestro Deutschland AGInventors: Thomas Fäcke, Friedrich-Karl Bruder, Rainer Hagen, Günther Walze, Thomas Roelle, Horst Berneth, Dennis Hönel, Marc-Stephan Weiser, Werner Hoheisel
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Publication number: 20190011880Abstract: The invention relates to an apparatus (200, 300, 400, 600) for producing volume reflection holograms with substrate-guided reconstruction beams, comprising: at least one transparent, planar carrier element (210, 310, 410, 610) comprising a first flat side (210.1) and a further flat side (210.2), at least one master element (206, 306, 406, 606) arrangeable at the first flat side (210.1) of the carrier element (210, 310, 410, 610) and at least one optical input coupling element (102, 202, 302, 402, 602) configured to optically couple a light beam (214, 216), wherein provision is made of at least one coupling portion (104, 204, 304, 404, 604) configured to mechanically establish an optical contact between the input coupling element (102, 202, 302, 402) and at least one holographic recording medium (208, 308, 408) providable on the further flat side (210.Type: ApplicationFiled: December 19, 2016Publication date: January 10, 2019Inventors: Christian REWITZ, Rainer HAGEN, Thomas FÄCKE, Günther WALZE, Friedrich-Karl BRUDER
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Publication number: 20180348704Abstract: The invention relates to a method for producing a holographic optical element by providing a recording stack comprising at least one recording element laminated on at least one supporting element, irradiating at least a part of the recording stack with at least one recording beam in an irradiating step, wherein during the irradiating step, the recording stack bends, providing a bending deviation threshold for the recording stack, and adjusting at least one first process parameter such that an expected maximum bending deviation of the recording stack does not exceed the bending deviation threshold, wherein the at least one first process parameter influences the bending behaviour of the recording stack during the irradiating step.Type: ApplicationFiled: August 8, 2018Publication date: December 6, 2018Inventors: Hyungseok BANG, Heejin IM, Guensik LEE, Friedrich-Karl BRUDER, Thomas Peter FACKE, Marc-Stephan WEISER, Rainer HAGEN, Thomas ROLLE, Horst BERNETH, Dennis HONEL, Günther WALZE
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Patent number: 10073416Abstract: The invention relates to a method for producing a holographic optical element by providing a recording stack comprising at least one recording element laminated on at least one supporting element, irradiating at least a part of the recording stack with at least one recording beam in an irradiating step, wherein during the irradiating step, the recording stack bends, providing a bending deviation threshold for the recording stack, and adjusting at least one first process parameter such that an expected maximum bending deviation of the recording stack does not exceed the bending deviation threshold, wherein the at least one first process parameter influences the bending behavior of the recording stack during the irradiating step.Type: GrantFiled: April 24, 2015Date of Patent: September 11, 2018Assignees: LG Display Co., Ltd., Bayer MaterialScience AGInventors: Hyungseok Bang, Heejin Im, Guensik Lee, Friedrich-Karl Bruder, Thomas Peter Facke, Marc-Stephan Weiser, Rainer Hagen, Thomas Rolle, Horst Berneth, Dennis Honel, Günther Walze
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Publication number: 20180188437Abstract: The invention relates to an indirect lighting arrangement (2, 2.1, 2.2, 2.3, 2.4, 2.5) comprising at least one cylindrical waveguide (4). At least one end (12.1, 12.2) of the cylindrical waveguide (4) is designed to couple light from a first light source (1) into the cylindrical waveguide (4), and the lateral surface (10) of the cylindrical wave guide (4) has a coupling section (6) which is designed to optically couple the cylindrical waveguide (4) to an arrangeable plate-shaped waveguide (16). At least the coupling section (6) has at least one holographic optical element (8) which is designed to emit light from the cylindrical waveguide (4) into the arrangeable plate-shaped waveguide (16).Type: ApplicationFiled: June 23, 2016Publication date: July 5, 2018Inventors: RAINER HAGEN, Günther WALZE, Thomas FÄCKE, Friedrich-Karl BRUDER, Dennis HÖNEL, Thomas RöLLE, Horst BERNETH, Marc-Stephan WEISER
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Patent number: 10001703Abstract: The invention relates to a photopolymer formulation comprising a component reactive toward isocyanates, a polyisocyanate component, a writing monomer and a photoinitiator containing at least one dye and a coinitiator, characterized in that the coinitiator contains at least one substance of the formula (Ia) The invention further provides a process for preparing the specific coinitiators and the coinitiators obtainable by this process, and additionally a process for producing a holographic medium using the specific coinitiators, and a holographic medium obtainable using the inventive photopolymer formulation. The invention further relates to a laminate structure comprising an inventive holographic medium and likewise specific borates suitable as coinitiators.Type: GrantFiled: October 13, 2014Date of Patent: June 19, 2018Assignee: Covestro Deutschland AGInventors: Horst Berneth, Thomas Rölle, Friedrich-Karl Bruder, Dennis Hönel, Marc-Stephan Weiser, Thomas Fäcke, Rainer Hagen, Günther Walze
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Publication number: 20180118882Abstract: A method may facilitate the crystallization of granules of a crystallizable thermoplastic material in conjunction with removal of low molecular mass components contained in the thermoplastic material. The crystallizable thermoplastic material may have a crystalline melting temperature of at least 130° C. According to the method, a crystallization stage and a removal stage may be performed at different temperatures of the granules. Often the crystallization may occur at a lower temperature than the removal of the low molecular mass components. In the crystallization and removal stages, a flow of gas may pass countercurrent to a direction along which the granules are conveyed. Further, example devices disclosed herein may be utilized to perform the exemplary methods disclosed herein.Type: ApplicationFiled: April 11, 2016Publication date: May 3, 2018Applicants: UHDE INVENTA-FISCHER GMBH, THYSSENKRUPP AGInventors: Rainer HAGEN, Udo MÜHLBAUER
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Patent number: 9921473Abstract: The invention relates to a photopolymer formulation comprising specific aromatic glycol ethers as writing monomers, matrix polymers and a photoinitiator. The invention further provides an unexposed holographic medium obtainable using an inventive photopolymer formulation, and an exposed holographic medium obtainable by exposing a hologram into an inventive unexposed holographic medium. The invention likewise provides a visual display comprising an inventive exposed holographic medium, for the use of an inventive exposed holographic medium for production of chip cards, identification documents, 3D images, product protection labels, labels, banknotes or holographic optical elements, and specific aromatic glycol ethers.Type: GrantFiled: March 24, 2015Date of Patent: March 20, 2018Assignee: Covestro Deutschland AGInventors: Thomas Fäcke, Friedrich-Karl Bruder, Thomas Rölle, Marc-Stephan Weiser, Dennis Hönel, Horst Berneth, Günther Walze, Rainer Hagen
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Patent number: 9910208Abstract: The present disclosure relates to a thin film type controlled viewing window back light unit and a thin flat type Controlled Viewing window Display using the same. The present disclosure suggests a thin film type back light unit which can include: a base film having a width and a length, and including a high refractive film and a low refractive film stacked on the high refractive film; an incident pattern disposed at one side of a bottom surface of the base film; a reflective pattern disposed at an opposite side apart from the one side with the length of the bottom surface of the base film, and covering the width of the opposite side; a light radiating pattern disposed on an upper surface of the base film; a holographic film for controlling a viewing-window disposed on the light radiating pattern; and a light source being apart from the incident pattern, and providing an incident light to the incident pattern.Type: GrantFiled: June 1, 2015Date of Patent: March 6, 2018Assignees: LG DISPLAY CO., LTD., COVESTRO DEUTSCHLAND AGInventors: Hyungseok Bang, Seungman Ryu, Friedrich-Karl Bruder, Thomas Peter Fäcke, Rainer Hagen, Günther Walze
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Publication number: 20170327033Abstract: A lighting device for vehicles, in particular a signal light, with a light source for emitting a light beam and an optical unit associated with the light source for producing a predetermined light function, the optical unit having a holographic element and a lens arranged in the main emission direction in front of the holographic element, the holographic element comprising such a diffraction structure that the light beam emitted from the light source onto the holographic element is varied according to a predetermined illumination pattern such that the holographic light beam lights an illumination surface of the lens to generate the light function.Type: ApplicationFiled: December 18, 2015Publication date: November 16, 2017Inventors: Martin Muegge, Carsten Hohmann, Rainer Hagen, Guenther Walze, Thomas Faecke
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Patent number: 9804490Abstract: The present invention provides a novel photopolymer formulation comprising matrix polymers, writing monomer and a photoinitiator and further comprising a compound of formula (1) where A1, A2 and A3 are each independently hydrogen, fluorine, chlorine, bromine or iodine, R1, R2, R3, R4 and R5 are each independently hydrogen, halogen, cyano, nitro, amino, alkylimino, azide, isonitrile, enamino, formyl, acyl, carboxyl, carboxylate, carboxamide, orthoester, sulphonate, phosphate, organosulphonyl, organosulphoxidyl, optionally fluorinated alkoxy or an optionally substituted aromatic, heteroaromatic, aliphatic, araliphatic, olefinic or acetylenic radical while suitable radicals may be connected together via bridge of any desired substitution, or in that two or more compounds of formula (I) may be connected together via at least one of the radicals R1, R2, R3, R4 and R5, in which case these radicals therein constitute a 2- to 4-tuply functional bridge, with the proviso that at least one of the radicals R1, R2, R3Type: GrantFiled: December 16, 2014Date of Patent: October 31, 2017Assignee: Covestro Deutschland AGInventors: Thomas Rölle, Horst Berneth, Friedrich-Karl Bruder, Dennis Hönel, Thomas Fäcke, Günther Walze, Rainer Hagen, Christian Diedrich
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Publication number: 20170045816Abstract: The invention relates to a photopolymer formulation comprising specific aromatic glycol ethers as writing monomers, matrix polymers and a photoinitiator. The invention further provides an unexposed holographic medium obtainable using an inventive photopolymer formulation, and an exposed holographic medium obtainable by exposing a hologram into an inventive unexposed holographic medium. The invention likewise provides a visual display comprising an inventive exposed holographic medium, for the use of an inventive exposed holographic medium for production of chip cards, identification documents, 3D images, product protection labels, labels, banknotes or holographic optical elements, and specific aromatic glycol ethers.Type: ApplicationFiled: March 24, 2015Publication date: February 16, 2017Inventors: Thomas FÄCKE, Friedrich-Karl BRUDER, Thomas RÖLLE, Marc-Stephan WEISER, Dennis HÖNEL, Horst BERNETH, Günther WALZE, Rainer HAGEN
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Patent number: 9541900Abstract: The present disclosure relates to a method for producing a beam shaping holographic optical element, which is configured to generate diffracted beams configured to reconstruct an image of a diffusor irrespectively of the point of impact of a pencil of light on the beam shaping holographic optical element, comprising providing a recording element, providing a master element comprising a particular pattern, forming a recording stack comprising the recording element and the master element such that the master element is arranged to the recording element in a closed-copy distance, irradiating at least a part of the recording stack with a reconstruction beam, irradiating at least a part of the recording stack with a reference beam, wherein at least one of the reconstruction beam or reference beam penetrates the master element to record the pattern of the master element onto the recording element.Type: GrantFiled: December 26, 2013Date of Patent: January 10, 2017Assignees: LG Display Co., Ltd., Bayer MaterialScience AGInventors: Hyungseok Bang, Heejin Im, Guensik Lee, Friedrich-Karl Bruder, Thomas Peter Fäcke, Marc-Stephan Weiser, Rainer Hagen, Thomas Rölle, Horst Berneth, Dennis Hönel, Günther Walze
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Patent number: 9523808Abstract: Disclosed is a flat panel display device having a display panel and a back light unit in which the back light unit may, for example, include a base film having a width and a length and including a high refractive film and a low refractive film on the high refractive film; a first incident pattern at a one side of a first surface of the base film; a reflective pattern on the first surface of the base film at an opposite side spaced apart from the one side with a distance substantially corresponding to the length of the first surface of the base film and substantially covering the width of the first surface of the base film; a light radiating pattern on a second surface of the base film; and a light source spaced apart from the first incident pattern with a first focal length and providing an incident light to the first incident pattern.Type: GrantFiled: December 30, 2014Date of Patent: December 20, 2016Assignees: LG DISPLAY CO., LTD., COVESTRO DEUTSCHLAND AGInventors: Hyungseok Bang, Friedrich-Karl Bruder, Thomas Peter Fäcke, Rainer Hagen, Günther Walze
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Publication number: 20160353092Abstract: An autostereoscopic 3D display device is disclosed. The device includes a first light source and a second light source configured to alternately generate light and a light guide panel arranged to guide the light from the first light source in a first direction as a first light beam and the light from the second light source in a second direction as a second light beam. In the device, a stack of a plurality of holographic optical elements is configured to converge the first light beam and the second light beam from the light guide panel. The stack of the plurality of holographic optical elements may include at least one first holographic optical element and at least one second holographic optical element.Type: ApplicationFiled: February 17, 2015Publication date: December 1, 2016Inventors: Friedrich-Karl BRUDER, Rainer HAGEN, Thomas FÄCKE, Günther WALZE, Eun Soo KIM, Yong Seok HWANG
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Publication number: 20160320695Abstract: The present invention provides a novel photopolymer formulation comprising matrix polymers, writing monomer and a photoinitiator and further comprising a compound of formula (1) where A1, A2 and A3 are each independently hydrogen, fluorine, chlorine, bromine or iodine, R1, R2, R3, R4 and R5 are each independently hydrogen, halogen, cyano, nitro, amino, alkylimino, azide, isonitrile, enamino, formyl, acyl, carboxyl, carboxylate, carboxamide, orthoester, sulphonate, phosphate, organosulphonyl, organosulphoxidyl, optionally fluorinated alkoxy or an optionally substituted aromatic, heteroaromatic, aliphatic, araliphatic, olefinic or acetylenic radical while suitable radicals may be connected together via bridge of any desired substitution, or in that two or more compounds of formula (I) may be connected together via at least one of the radicals R1, R2, R3, R4 and R5, in which case these radicals therein constitute a 2- to 4-tuply functional bridge, with the proviso that at least one of the radicals R1, R2, R3Type: ApplicationFiled: December 16, 2014Publication date: November 3, 2016Applicant: Covertro Deutschland AGInventors: Thomas RÖLLE, Horst BERNETH, Friedrich-karl BRUDER, Dennis HÖNEL, Thomas FÄCKE, Günther WALZE, Rainer HAGEN, Christian DIEDRICH
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Publication number: 20160313696Abstract: The invention relates to a method for producing a holographic optical element by providing a recording stack comprising at least one recording element laminated on at least one supporting element, irradiating at least a part of the recording stack with at least one recording beam in an irradiating step, wherein during the irradiating step, the recording stack bends, providing a bending deviation threshold for the recording stack, and adjusting at least one first process parameter such that an expected maximum bending deviation of the recording stack does not exceed the bending deviation threshold, wherein the at least one first process parameter influences the bending behaviour of the recording stack during the irradiating step.Type: ApplicationFiled: April 24, 2015Publication date: October 27, 2016Inventors: Hyungseok BANG, Heejin IM, Guensik LEE, Friedrich-Karl BRUDER, Thomas Peter FACKE, Marc-Stephan WEISER, Rainer HAGEN, Thomas ROLLE, Horst BERNETH, Dennis HONEL, Günther WALZE
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Publication number: 20160280908Abstract: In a practicable continuous or batchwise process for the preparation of a crystallizable polylactic acid mixture, lactic acid may be polycondensed to yield an oligomer, which may then be depolymerized to yield a crude lactide. The crude lactide may be purified to yield a pure lactide, wherein fractionation may be carried out in the purification into an L- or D-lactide-rich fraction and also a meso-lactide-rich fraction. Subsequently a separate ring-opening polymerization of the resulting lactide fractions can be carried out. The individual polylactic acid batches or streams generated by the ring-opening polymerization may then be mixed. The present disclosure further relates to apparatuses for carrying out such processes and polylactic acid mixtures.Type: ApplicationFiled: October 24, 2014Publication date: September 29, 2016Applicants: Uhde Inventa-Fischer GmbH, ThyssenKrupp AGInventors: Rainer HAGEN, Udo MÜHLBAUER, Caspar PAETZ
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Publication number: 20160252808Abstract: The invention relates to a photopolymer formulation comprising a component reactive toward isocyanates, a polyisocyanate component, a writing monomer and a photoinitiator containing at least one dye and a coinitiator, characterized in that the coinitiator contains at least one substance of the formula (Ia) The invention further provides a process for preparing the specific coinitiators and the coinitiators obtainable by this process, and additionally a process for producing a holographic medium using the specific coinitiators, and a holographic medium obtainable using the inventive photopolymer formulation. The invention further relates to a laminate structure comprising an inventive holographic medium and likewise specific borates suitable as coinitiators.Type: ApplicationFiled: October 13, 2014Publication date: September 1, 2016Inventors: Horst BERNETH, Thomas RÖLLE, Friedrich-Karl BRUDER, Dennis HÖNEL, Marc-Stephan WEISER, Thomas FÄCKE, Rainer HAGEN, Günther WALZE