Patents by Inventor Guenther Walze
Guenther Walze 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: 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: 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
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Publication number: 20160091648Abstract: 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: ApplicationFiled: June 1, 2015Publication date: March 31, 2016Applicants: BAYER MATERIALSCIENCE AG, LG DISPLAY CO., LTD.Inventors: Hyungseok BANG, Seungman RYU, Friedrich-Karl BRUDER, Thomas Peter FÄCKE, Rainer HAGEN, Günther WALZE
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Publication number: 20150205034Abstract: The invention relates to a planar light distribution module for a display, comprising a light guide plate through which light coupled in via at least one side face can propagate by means of total reflection, and at least one out-coupling device (2), which is applied on one or both of the main faces of the light guide plate (1), is in optical contact therewith and has a multiplicity of holographic optical elements (13) formed therein, which are configured in such a way that they can couple light out of the light guide plate (1), the light distribution module being characterized in that the holographic optical elements (13), independently of one another, have an extent of at least 300 ?m in at least one spatial axis extending parallel to the surface of the out-coupling device (2). The invention furthermore relates to an optical display, in particular an electronic display.Type: ApplicationFiled: August 9, 2013Publication date: July 23, 2015Inventors: Thomas Fäcke, Friedrich-Karl Bruder, Rainer Hagen, Günther Walze, Thomas Rölle, Horst Berneth, Dennis Hönel, Marc-Stephan Weiser, Werner Hoheisel
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Publication number: 20150192725Abstract: The invention relates to a planar light distribution module for a display, comprising a light guide plate through which light coupled in via at least one side face can propagate by means of total reflection, and at least one planar out-coupling device (2), which is applied on one or both of the main faces of the light guide plate (1), is in optical contact therewith and has a multiplicity of holographic optical elements (13) formed therein, which are configured in such a way that they can couple light out of the light guide plate (1), the light distribution module being characterized in that the holographic optical elements (13) are arranged in the out-coupling device (2) without translational symmetry. The invention furthermore relates to an optical display, in particular an electronic display, which contains a light distribution module according to the invention.Type: ApplicationFiled: August 9, 2013Publication date: July 9, 2015Inventors: Thomas Fäcke, Friedrich-Karl Bruder, Rainer Hagen, Günther Walze, Thomas Rölle, Horst Berneth, Dennis Hönel, Marc-Stephan Weiser, Werner Hoheisel
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Publication number: 20150185698Abstract: 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: ApplicationFiled: December 26, 2013Publication date: July 2, 2015Inventors: 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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Publication number: 20150177443Abstract: 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 neighbouring decoupling regions are at least adjacent to one another before exiting the diffuser module.Type: ApplicationFiled: August 9, 2013Publication date: June 25, 2015Inventors: Thomas Faecke, Friedrich-Karl Bruder, Rainer Hagen, Guenther Walze, Thomas Roelle, Horst Berneth, Dennis Hoenel, Marc-Stephan Weiser, Werner Hoheisel
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Publication number: 20130265625Abstract: The invention relates to an autostereoscopic 3D display (1), comprising an illumination unit (2) having two light sources (3, 4), a light guide (5), a holographic-optical element (6) as a diffractive optical light directing element, a transparent display panel (7), and a control unit (8) for alternately synchronizing the light sources (3, 4) with a right and a left parallactic image represented on the display panel (7), wherein the light sources (3, 4) are oriented so as to irradiate light into the light guide (5) from various directions and the holographic-optical element (6) and the display panel (7) are arranged such that light emitted by the light guide is diffracted by the holographic-optical element (6) in two different directions, depending in the preferred direction of the light, and directed through the display panel (7), wherein at least one surface of he light guide (5) has a refractive surface (10).Type: ApplicationFiled: September 14, 2011Publication date: October 10, 2013Applicant: BAYER INTELLECTUAL PROPERTY GMBHInventors: Thomas Fäcke, Friedrich-Karl Bruder, Rainer Hagen, Günther Walze
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Publication number: 20110085330Abstract: The present invention relates to an LED lighting unit containing a scattering sheet consisting of at least one transparent plastic, which has light-guiding elements at least on the front side.Type: ApplicationFiled: October 11, 2010Publication date: April 14, 2011Applicant: Bayer MaterialScience AGInventors: Heinz Pudleiner, Günther Walze, Andreas Lyding
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Publication number: 20110026248Abstract: A lighting unit includes a reflector, two or more light sources, and at least one diffuser plate. The light sources have a gap of at least ?30 mm from each other, and the gap between the light sources and the diffuser plate is ?25 mm. The diffuser plate comprises a lenticular plate. An advanced compound parabolic concentrator scatter film is arranged on the lenticular plate, and a further scatter film is arranged on the advanced compound parabolic concentrator scatter film.Type: ApplicationFiled: July 30, 2010Publication date: February 3, 2011Applicant: Bayer MaterialScience AGInventors: Gunther Stollwerck, Klaus Meyer, Andreas Lyding, Heinz Pudleiner, Günther Walze
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Patent number: 7701634Abstract: The present invention relates to a multilayer, surface structured solid plate for light guidance, the base material of which consists of a transparent plastic material, and optionally one or more cover layers.Type: GrantFiled: July 2, 2008Date of Patent: April 20, 2010Assignee: Bayer MaterialScience AGInventors: Günther Walze, Gunther Stollwerck, Wilfried Haese
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Publication number: 20090073567Abstract: The present invention relates to a multilayer, surface structured solid plate for light guidance, the base material of which consists of a transparent plastic material, and optionally one or more cover layers.Type: ApplicationFiled: July 2, 2008Publication date: March 19, 2009Applicant: Bayer MaterialScience AGInventors: Guenther Walze, Gunther Stollwerck, Wilfried Haese