Holographic Process, Composition, Or Product Patents (Class 430/1)
  • Patent number: 11407731
    Abstract: A system for making a holographic medium for use in generating light patterns for eye tracking includes a light source configured to provide light and a beam splitter configured to separate the light into a first portion of the light and a second portion of the light that is spatially separated from the first portion of the light. The system also includes a first set of optical elements configured to transmit the first portion of the light for providing a first wide-field beam onto an optically recordable medium and one or more diffractive optical elements configured to receive the second portion of the light and project a plurality of separate light patterns onto the optically recordable medium for forming the holographic medium.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: August 9, 2022
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Ganghun Kim, Andrew Maimone, Alexander Jobe Fix, Robert Dale Cavin, Hee Yoon Lee, Matthieu Charles Raoul Leibovici, Brian Wheelwright, Douglas Robert Lanman
  • Patent number: 11391679
    Abstract: An apparatus for X-ray imaging is provided. An X-ray source provides an X-ray along an X-ray beam path. A holographic medium is along the X-ray beam path. An X-ray phase grating is between the X-ray source and the holographic medium along the X-ray beam path. A readout beam source provides a readout beam along a readout beam path. A readout detector is along the readout beam path, wherein the holographic medium is along the readout beam path.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: July 19, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Lambertus Hesselink, George Kiyoshi Herring
  • Patent number: 11353641
    Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: June 7, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Robert D. Tekolste, Michael Anthony Klug, Paul M. Greco, Brian T. Schowengerdt
  • Patent number: 11307413
    Abstract: Systems, devices, and methods for eyebox expansion in wearable heads-up display are described. The eyebox of a wearable heads-up display may be expanded by increasing the bandwidth of the hologram comprising the holographic combiner of the wearable heads-up display. The bandwidth of the hologram may be increased by physically coupling a donor film to a hologram film, causing donor material to diffuse into the hologram film and then fixing the donor material in place. Diffusion of donor material into the hologram film causes a change in the slant angle and/or the spacing of at least a portion of the hologram fringes of the hologram film, broadening the bandwidth of the hologram.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: April 19, 2022
    Assignee: Google LLC
    Inventors: John Cormier, Laleh Mokhtarpour, Sylwia Agnieszka Lyda, I-Hsiang Albert Chen
  • Patent number: 11308823
    Abstract: Provided herein are a method of using thermochromic ink for blood simulation in medical training and a method of using thermochromic ink for blood simulation. A prominent application is for simulation of Extracorporeal Membrane Oxygenation (ECMO) simulation.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 19, 2022
    Assignee: QATAR UNIVERSITY
    Inventors: Abdullah Alsalemi, Mohammed Al Disi, Yahya Alhomsi, Ibrahim Ahmed, Fayçal Bensaali, Abbes Amira, Guillaume Alinier
  • Patent number: 11267943
    Abstract: The invention relates to a layer construction comprising a curable protective layer C and a photopolymer layer B, to a method for producing such a layer construction, to a method for producing a hologram using such a layer construction, to a sealed holographic medium and to the use of such a layer construction for producing a hologram.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: March 8, 2022
    Assignee: Covestro Deutschland AG
    Inventors: Serguei Kostromine, Benjamin Herzberg, Thomas Rölle, Dennis Hönel, Thomas Fäcke, Heinz-Guenter Auweiler
  • Patent number: 11262495
    Abstract: A manufacturing system for creating waveguides that include optical gratings having high coupling efficiencies is described herein. The waveguides are used to guide image light from a source assembly to an eye of a user. The optical gratings are used to couple light into an optical waveguide element and/or decouple light from the optical waveguide element. The manufacturing system creates optical gratings by patterning and adjusts refractive indexes of the optical gratings by infusion and post-processing. A refractive index of an optical grating can be uniform or non-uniform. In-coupling efficiencies of light into a waveguide via the optical gratings and/or out-coupling efficiencies of light out of a waveguide via the optical gratings can be increased. The manufacturing system includes a patterning system, an infusion system, and a post-processing system.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: March 1, 2022
    Assignee: Facebook Technologies, LLC
    Inventors: Matthew E. Colburn, Giuseppe Calafiore, Matthieu Charles Raoul Leibovici, Maxwell Parsons
  • Patent number: 11226557
    Abstract: The present disclosure relates to a hologram recording medium having a main relaxation temperature (Tr) of 0° C. or less, wherein the Tr is a point where a rate of change of phase angle with respect to temperature is the largest in a range of ?80° C. to 30° C. in dynamic mechanical analysis. The present disclosure also relates to an optical element including the same and a holographic recording method using the hologram recording medium.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: January 18, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Seokhoon Jang, Hyunsup Lee, Heon Kim, Se Hyun Kwon, Yeongrae Chang
  • Patent number: 11169398
    Abstract: A spectacle lens has a transparent substrate and at least one HOE-capable polymer layer arranged on the transparent substrate. The at least one HOE-capable polymer layer is suitable for forming a holographic optical element. Related methods and apparatus are described.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: November 9, 2021
    Assignee: tooz technologies GmbH
    Inventors: Jörg Pütz, Katharina Rifai, Karsten Lindig
  • Patent number: 11126081
    Abstract: The present disclosure relates to a photopolymer composition including: a polymer matrix or a precursor thereof; a photoreactive monomer including a polyfunctional (meth)acrylate monomer having a refractive index of 1.5 or less and a viscosity at 25° C. of 100 cps or less, and a monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more; and a photoinitiator, wherein a content of the monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more in the photoreactive monomer is 60 wt % or more. The present disclosure also relates to a hologram recording medium produced from the photopolymer composition, an optical element including the hologram recording medium, and a holographic recording method using the photopolymer composition.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Boo Kyung Kim, Heon Kim, Seok Hoon Jang, Yeong Rae Chang
  • Patent number: 11077693
    Abstract: A hot-stamping foil which is transferred to a transfer target by applying a transfer thermal pressure, including: a carrier that is a base film or a coated base film; a laminated optical decoration having a laminated optical structure formed on the carrier; a sinking control layer which contains a soft resin and a deformation limiting agent and is formed on the laminated optical structure; and an adhesive layer which is formed on the sinking control layer, wherein the adhesive layer contains a resin component which contains a thermoplastic resin having a glass transition temperature lower than room temperature and defines the thickness of the adhesive layer, and spacer particles which have a particle size larger than the thickness of the adhesive layer and some of which protrude from the resin component, and wherein the spacer particles sink into the sinking control layer after transfer thermal pressing.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: August 3, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Hanako Yamamoto
  • Patent number: 11035988
    Abstract: A manufacturing system performs a lithographic patterning of a resist formed on a substrate to create a first optical grating including a plurality of structures at a first slant angle relative to the substrate. The manufacturing system performs a tunable shrinkage of the plurality of structures to adjust the first slant angle to a target slant angle different from the first slant angle. In some embodiments, the manufacturing system performs a post-processing of the plurality of structures to create a second optical grating from the first optical grating. The post-processing may adjust at least one of: a refractive index, a height, and a volume of the first optical grating.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: June 15, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Matthew E. Colburn, Giuseppe Calafiore, Matthieu Charles Raoul Leibovici, Maxwell Parsons, Austin Lane
  • Patent number: 10866564
    Abstract: A holographic antenna for recording a comprehensive interference pattern beyond the mere minimum and maximum values and reconstructing waveform of a target antenna includes a feed antenna and a holographic structure. The holographic structure includes a substrate and a plurality of spaced metal strips disposed on the substrate. Heights of the metal strips are negatively correlated with intensities of the interference pattern. A method for fabricating such a holographic antenna is also provided.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: December 15, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Li-Tsun Wang
  • Patent number: 10732511
    Abstract: Disclosed is a system configured to project a beam of radiation onto a target portion of a substrate within a lithographic apparatus. The system comprises a mirror having an actuator for positioning the mirror and/or configuring the shape of the mirror, the actuator also providing active damping to the mirror, and a controller for generating actuator control signals for control of said actuator(s). A first coordinate system is used for control of said actuator(s) when positioning said mirror and/or configuring the shape of said mirror and a second coordinate system is used for control of said actuator(s) when providing active damping to said mirror.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: August 4, 2020
    Assignee: ASML Netherlands B.V.
    Inventors: Marcus Adrianus Van De Kerkhof, Anton Bernhard Van Oosten, Hans Butler, Erik Roelof Loopstra, Marc Wilhelmus Maria Van Der Wijst, Koen Jacobus Johannes Maria Zaal
  • Patent number: 10724139
    Abstract: The invention provides a encapsulation method for OLED panel, by forming an organic defining film surrounding the OLED device on the substrate, then using ALD process to form an inorganic film on the substrate and OLED device covering the package region and then removing the organic defining film to obtain an ALD film corresponding to the above of the package region, and finally forming a package film on ALD film corresponding to the above of the package region complete encapsulation the OLED panel. The present invention uses an organic defining film to realize selective atomic layer deposition, thereby avoiding using the atomic layer deposition mask and related cleaning and replacement problems. The process is relatively simple, thus saving costs, and the resulted package structure meets the encapsulation requirements of flexible OLED panel, able to effectively block the external water oxygen to protect the OLED device.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: July 28, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jing Huang
  • Patent number: 10663637
    Abstract: An apparatus for producing an optically variable film includes a laser configured to emit a beam, a telescoping lens section having a first lens and a second lens spaced apart by a first distance and an interferometer configured to direct the beam toward a workpiece. The laser may be operated at a predetermined power level and the first and second lenses are sized and spaced relative to one another to direct the beam onto the workpiece at about 200-230 dots per inch. The workpiece may include a polyethylene terephthalate (PET) layer configured to be ablated by the beam, forming a microstructure in the surface of the layer. The microstructure may be randomized and used to present non-chroma visual effects.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: May 26, 2020
    Assignee: Illinois Tool Works Inc.
    Inventor: Dean Randazzo
  • Patent number: 10604600
    Abstract: The objection of the present invention is to provide a photocurable resin composition having deep curability. The photocurable resin composition comprises an allyl polymer (a) produced by polymerization of an allyl compound represented by the following formula (1), a photocurable compound (b), and a photopolymerization initiator (c). In the formula, n represents an integer of 2 to 4; Z is selected from a binding site, an n-valent aliphatic chain hydrocarbon group optionally having a hydroxyl group, an n-valent alicyclic hydrocarbon group optionally having an alkyl group, and an n-valent aromatic hydrocarbon group optionally having an alkyl group; n is 2 and two —COOCH2CH?CH2 moieties are directly bonded to each other when Z is a binding site.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: March 31, 2020
    Assignee: OSAKA SODA CO., LTD.
    Inventors: Hideaki Umakoshi, Naruhito Iwasa, Hiroki Yamamoto
  • Patent number: 10168453
    Abstract: There is provided a polarizing plate protective film including a substrate and a hard coat layer, wherein the hard coat layer is a layer formed by curing a photocurable composition containing a polyfunctional (meth)acrylate compound and an acid anhydride, and a content of the acid anhydride in the photocurable composition is 8% by mass or more based on a total solid content of the photocurable composition.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: January 1, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Tomohiro Kodama
  • Patent number: 10108089
    Abstract: The present disclosure provides a photosensitive resin composition and a method for forming a quantum dot pattern using the same. The photosensitive resin composition includes quantum dots which are dispersed in the photosensitive resin composition and each has a modification layer. The method for forming a quantum dot pattern includes coating, exposing and developing a photoresist to obtain the quantum dot pattern, wherein the photoresist is the above-mentioned photosensitive resin composition.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: October 23, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jingxia Gu, Shi Shu, Feng Zhang, Guanbao Hui
  • Patent number: 10088926
    Abstract: An apparatus and method for fabricating a touch screen panel is disclosed. The method includes forming material patterns on different areas of a blanket roll and printing the material patterns on a transparent substrate by rotating the blanket roll over the transparent substrate. An apparatus for fabricating a touch screen panel includes a blanket roll being rotatable about a rotational axis and configured to print a plurality of material patterns on a substrate while rotating over the substrate. A circumferential surface of the blanket roll includes circumferential areas that are angularly separate from each other about the rotational axis. Each of circumferential areas comprises a pattern for printing a component of a sensing cell to be formed on the substrate.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: October 2, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Dae Kim, Byoung-Sang Song, Jong-Mo Yeo, Sang-Hoon Kim
  • Patent number: 9925704
    Abstract: An in-mold molding method of the present invention is a method including: placing an in-mold transfer film in the cavity of an injection molding mold, the in-mold transfer film having a hard coating layer and a transfer section of a printed layer; and peeling, from the base material film of the in-mold transfer film, the transfer section transferred to a molding resin when a molding molded by injecting the molding resin into the cavity is removed by mold opening. The hard coating layer is ruptured in a mold opening process while the in-mold transfer film has a necessary elongation of A % on the side of the molding and the hard coating layer has a rupture elongation of at least A %+2% and less than A %+40% on the side of the molding. With this configuration, the in-mold transfer film can be stably peeled during in-mold molding.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: March 27, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Nakagawa, Mitsuhiro Yoshinaga
  • Patent number: 9758885
    Abstract: A composition comprising a source of metal ions and at least one additive comprising at least one polyaminoamide, said polyaminoamide comprising the structural unit represented by formula I or derivatives of the polyaminoamide of formula I obtainable by complete or partial protonation, N-functionalization or N-quaternization with a non-aromatic reactant, wherein D6 is, for each repeating unit 1 to s independently, a divalent group selected from a saturated or unsaturated C1-C20 organic radical, D7 is, for each repeating unit 1 to s independently, a divalent group selected from straight chain or branched C2-C20 alkanediyl, which may optionally be interrupted by heteroatoms or divalent groups selected from O, S and NR10, R1 is, for each repeating unit 1 to s independently, selected from H, C1-C20 alkyl, and C1-C20 alkenyl, which may optionally be substituted by hydroxyl, alkoxy or alkoxycarbonyl, or, together with R2, may form a divalent group D8, and R2 is, for each repeating unit 1 to s independently, s
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: September 12, 2017
    Assignee: BASF SE
    Inventors: Marcel Patrik Kienle, Dieter Mayer, Cornelia Roeger-Goepfert, Alexandra Haag, Charlotte Emnet, Alexander Fluegel, Marco Arnold
  • Patent number: 9733566
    Abstract: Techniques disclosed herein include methods for creating a directed self-assembly tunable neutral layer that works with multiple different block copolymer materials. Techniques herein can include depositing a neutral layer and then post-processing this neutral layer to tune its characteristics so that the neutral layer is compatible with a particular block copolymer scheme or schemes. Post-processing herein of such a neutral layer can modify a ratio of pi and sigma bonds in a given carbon film or other film to approximate a given self-assembly film that will be deposited on this neutral layer. Accordingly, a generic or single material can be used for a neutral layer and modified to match a given block copolymer to be deposited.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: August 15, 2017
    Assignee: Tokyo Electron Limited
    Inventor: Jeffrey Smith
  • Patent number: 9594345
    Abstract: Hybrid white-light viewable holograms and methods for making them. The holograms are hybrid reflection holograms made using the diffractive structures or gratings of a holographic object such as a transmission hologram or holographic optical element (HOE). The wavefronts of the diffractive structures are converted into a reflection hologram by scanning them with a coherent light source having a profiled narrow beam. The hybrid reflection hologram can exhibit display parameters including the multiple colors, solidity, and color stability of white light reflection holograms, the diffractive color shifting of a white light transmission hologram, three dimensional imaging and a wide variety of dynamic changes. Different areas or images with each of these effects can be combined in a single hologram. These hybrid reflection holograms are ideal for security and forgery prevention applications.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: March 14, 2017
    Assignee: DiARTs AG S.A.
    Inventor: Ken R. Harris
  • Patent number: 9529324
    Abstract: A main object of the present invention is to provide a method of producing a volume hologram laminate which can regenerate a hologram image in an arbitrary wavelength by a simple process. To attain the object, the present invention provides a method of producing a volume hologram laminate using a volume hologram forming substrate which comprises: a substrate, a volume hologram layer formed on the substrate and containing a photopolymerizable material, a resin layer, formed on the substrate so as to contact to the volume hologram layer, containing a resin and a polymerizable compound, characterized in that the producing method comprises processes of: a hologram recording process to record a volume hologram to the volume hologram layer, a substance transit process of transiting the polymerizable compound to the volume hologram layer, and an after-treatment process of polymerizing the polymerizable compound.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: December 27, 2016
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Minoru Azakami, Koji Eto, Hiroyuki Ohtaki, Yoshihito Maeno, Sakurako Hatori
  • Patent number: 9505652
    Abstract: Provided is a low-emissivity transparent laminate comprising a transparent substrate and a coating layer placed on the transparent substrate, wherein the coating layer has a multilayered structure sequentially comprising a low-emissivity layer, a buffer layer comprising a ZnSe-based composite metal nitride, and a dielectric layer from the transparent substrate.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: November 29, 2016
    Assignee: LG HAUSYS, LTD.
    Inventors: Ung Kil Kim, Youn Ki Jun, Dae Hoon Kwon
  • Patent number: 9454130
    Abstract: The subject matter of the invention is a method for producing illuminated, holographic media comprising a photopolymer formulation having the adjustable mechanical modulus GUV. A further subject matter of the invention is an illuminated, holographic medium that can be obtained by means of the method according to the invention.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: September 27, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Marc-Stephan Weiser, Thomas Roelle, Friedrich-Karl Bruder, Thomas Fäcke, Dennis Hönel
  • Patent number: 9423770
    Abstract: Technologies are generally described for generating a holographic image on a transparent screen such that a user can view another scenery image though the screen along with the generated holographic image. Example devices may include an ultraviolet light irradiation unit configured to irradiate an ultraviolet light towards a hologram generating unit. The holographic generating unit may be configured to generate a hologram image in response to the received ultraviolet light. Further, the light irradiation unit and the hologram generating unit may be operable to project the hologram image onto a transparent screen coated with a photochromic material. The light transmittance of the photochromic material coated on the transparent screen may change when a light beam with a specific frequency range is irradiated on the photochromic material. The example device may further include a hologram reconstruction light source configured to irradiate a hologram reconstruction light on the transparent screen.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: August 23, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Eiji Yamaichi
  • Patent number: 9330706
    Abstract: This invention teaches a methodology and an optical apparatus that provides long-term, archival storage using a chemically stable, high-resolution, photosensitive emulsion, such as silver halide, for the long-term, archival storage and retrieval of data, images and text. Multiple state data substantially increasing data density is stored as vertical diffraction gratings in the archival photosensitive emulsion. The data can be read out in parallel, substantially increasing retrieval speeds beyond that of current optical and magnetic techniques.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 3, 2016
    Inventors: Eric Dean Rosenthal, Richard Jay Solomon, Clark Eugene Johnson, Brian David Solomon, Jonathan Michael Smith
  • Patent number: 9316787
    Abstract: A method of fabricating a silicon photonic device and a system including a silicon photonic device are described. The method includes forming a photoresist layer on a silicon layer and patterning a mask formed on the photoresist layer. The patterning defines a primary optical waveguide region, a first evanescent perturbation grating region on a first side of the primary optical waveguide region and a second evanescent perturbation grating region on a second side, opposite the first side, of the primary optical waveguide. The first evanescent perturbation grating region and the second evanescent perturbation grating region are defined as continuous regions along a length of the silicon photonic device. The method also includes etching the photoresist layer and the silicon layer according to a pattern of the patterned mask.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: April 19, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jason S. Orcutt, Fnu Purnawirman
  • Patent number: 9318667
    Abstract: A method of producing a light-emitting diode includes providing at least one light-emitting diode chip, providing a suspension comprising a solvent and particles of at least one luminescent material, arranging the at least one light-emitting diode chip in the suspension, electrophoretically depositing the particles on an outer face of the at least one light-emitting diode chip, and completing the light-emitting diode.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: April 19, 2016
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Ion Stoll, Hans-Christoph Gallmeier, Kirstin Petersen
  • Patent number: 9266371
    Abstract: A display includes a substrate with a light-transmitting property, a relief structure-forming layer disposed on at least one surface of the substrate and including a relief-structured region on a surface thereof opposite to its surface in contact with the substrate, a light-reflecting layer disposed on the surface of the relief structure-forming layer including the relief-structured region, and a printed layer formed on a surface of the substrate opposite to the surface on which the relief structure-forming layer is disposed, or between the relief structure-forming layer and the light-reflecting layer, or on a side of the light-reflecting layer opposite to its surface in contact with the relief structure-forming layer. The relief-structured region is constituted by recessed or protruding portions arranged two-dimensionally, has low reflectivity and low diffusibility under a normal illumination condition, and exhibits a diffracted light-emitting property under a specific condition.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: February 23, 2016
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Toshiki Toda, Akira Nagano, Shingo Maruyama, Seiko Matsuno
  • Patent number: 9261778
    Abstract: The present invention relates to a layer composite comprising an exposed photopolymer film and an adhesive layer which is connected to the photopolymer film at least in certain regions, wherein the photopolymer film comprises crosslinked polyurethane matrix polymers A), crosslinked writing monomers B) and a monomeric fluoroethane additive C), wherein the adhesive layer is in the form of a diffusion barrier for the fluoroethane additive C). The invention also relates to the use of the layer composite for producing chip cards, ID documents or 3D images, as a product protective label, as a label, in banknotes in the form of a strip or window or as holographically optical elements in displays.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: February 16, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Marc-Stephan Weiser, Sascha Tadjbach, Ute Flemm, Dennis Hönel, Friedrich-Karl Bruder, Thomas Fäcke, Thomas Rölle, Horst Berneth
  • Patent number: 9237749
    Abstract: The present invention relates to combinations of the pyrion compounds sodium pyrithione and 1-hydroxy-2-pyridinone, and polyethyleneimines (PEI) which provide an improved biocidal effect. More particularly, the present invention relates to compositions comprising a combination of a pyrion compound selected from sodium pyrithione and 1-hydroxy-2-pyridinone together with polyethyleneimines; in respective proportions to provide a synergistic biocidal effect. Compositions comprising these combinations are useful for the protection of any living or non-living material, such as crops, plants, fruits, seeds, objects made of wood, thatch or the like, engineering material, biodegradable material and textiles against deterioration due to the action of microorganisms such as bacteria, fungi, yeasts, algae, viruses, and the like.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: January 19, 2016
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Dany Leopold Jozefien Bylemans, Miguel F. C. De Bolle
  • Patent number: 9223206
    Abstract: A photosensitive resin composition includes (A) an alkali-soluble resin, (B) a polysiloxane, (C) an ethylenically unsaturated compound, (D) a photo-initiator, (E) a solvent, (F) a black pigment, and (G) a metal chelate. The alkali-soluble resin (A) includes an unsaturated-group-containing resin (A-1) obtained by subjecting a mixture containing (i) an epoxy compound having at least two epoxy groups and (ii) a compound having at least one carboxyl group and at least one ethylenically unsaturated group to polymerization.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 29, 2015
    Assignee: Chi Mei Corporation
    Inventors: Ching-Yuan Tseng, Hao-Wei Liao
  • Patent number: 9207533
    Abstract: A photopolymerizable composition has seven essential components: (a) a photopolymerizable epoxy material, (b) a photoacid generator such as an onium salt, (c) electron acceptor photosensitizer, (d) an electron donor co-initiator having an oxidation potential of 0.1 V to 3 V vs. SCE, (e) metal particles, and in some embodiments, (f) one or more free radically polymerizable compounds, and (g) one or more free radical photoinitiators. This photopolymerizable composition can be applied or printed onto one or both sides of various substrates to form articles that can be used to form electrically conductive materials. Methods for using the photopolymerizable compositions include electroless plating methods that can be carried out in roll-to-roll printing and plating systems once various photocured patterns are formed from the photopolymerizable compositions.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: December 8, 2015
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Deepak Shukla, Mark R. Mis
  • Patent number: 9195139
    Abstract: Methods of and apparatus for performing direct-write lithography in a two-color photoresist layer are disclosed. The method includes exposing the two-color photoresist layer with transducer and inhibition images that respectively define bright spots and dark spots. The transducer image generates excited-state photo-molecules while the inhibition image converts the exited-state photo-molecules to an unexcited state that is not susceptible to conversion to an irreversible exposed state. The dark spots and bright spots are aligned, with the dark spots being smaller than the bright spots so that a portion of the excited-state photo-molecules adjacent the periphery of the bright spots absorb the inhibition radiation and transition to the unexcited state while a portion of the excited photo-molecules at the center of bright spots are not exposed to the inhibition light and transition to an irreversible exposed state. This forms in the two-color photoresist layer a pattern of sub-resolution photoresist pixels.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 24, 2015
    Assignee: Periodic Structures, Inc.
    Inventors: David A. Markle, John S. Petersen
  • Patent number: 9104176
    Abstract: The invention relates to a method for the production of a multicolor hologram by means of a capture beam, wherein the utilized capture beam (6) has a plurality of beam bundles of the same wavelength. Advantageously, the multicolor hologram is produced by copying the structure of multiple single-color subholograms of a master hologram (1) in a copy layer (5) which is affixed parallel to the master hologram, by illuminating this copy layer with the single-color capture beam. Each beam bundle appears at a prespecified angle of incidence, wherein the angles of incidence are calculated in such a manner that the structure of a corresponding subhologram is produced in the copy layer. In this way, a falsification is nearly impossible.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: August 11, 2015
    Assignee: Hologram Industries Research GmbH
    Inventors: Guenther Dausmann, Zishao Yang
  • Patent number: 9073296
    Abstract: The present invention relates to a laminate structure comprising a protective layer and an exposed photopolymer layer, the laminate structure being obtainable by reacting at least one radiation-curing resin I), an isocyanate-functional resin II) and a photoinitiator system III), and the radiation-curing resin I) containing ?5% by weight of compounds having a weight-average molecular weight of <500 and ?75% by weight of compounds having a weight-average molecular weight of >1000, the isocyanate-functional resin II) containing ?5% by weight of compounds having a weight-average molecular weight of <500, and the protective layer containing the radiation-curing resin I) at least to an extent of 80% by weight and the isocyanate-functional resin II) at most to an extent of 15% by weight. The invention further provides a process for producing the inventive laminate structure.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: July 7, 2015
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Thomas Fäcke, Friedrich-Karl Bruder, Thomas Rölle, Marc-Stephan Weiser, Dennis Hönel, Horst Berneth, Ute Flemm
  • Patent number: 9057946
    Abstract: The invention relates to compounds, of formula (I) in which X is CH3 or hydrogen, Z is a linear or branched C2 to C4 alkyl radical, R is a linear or branched, optionally heteroatom-substituted aliphatic, aromatic or araliphatic radical, Y in each occurrence is independently hydrogen, methyl, ethyl, propyl, n-butyl, tert-butyl, chlorine, bromine, iodine, methylthio, phenyl or phenylthio, n is from 0 to 4 and m is from 0 to 5. The invention further relates to the use of such a compound as writing monomer in a photopolymer formulation. In addition, a photopolymer formulation comprising as least a polyisocyanate component, a polyol component, a photoinitiator and a compound of formula (I) as writing monomer, and also the use of the photopolymer formulation for producing holographic media, are likewise subjects of the invention.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: June 16, 2015
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Thomas Fäcke, Friedrich-Karl Bruder, Thomas Rölle, Marc-Stephan Weiser, Dennis Hönel, Horst Berneth
  • Patent number: 9025226
    Abstract: A holographic structure, system and method project a grey-scale image in a narrow IR spectral band that is related to a broadband thermal signature of an object. The projected grey-scale image, when integrated over the broadband, forms either a decoy that approximates the thermal signature of the object or a mask that obscures the thermal signature of the object. The projected image is a tuned phase recording of a desired far field projection. In different embodiments, the projected image is a “positive” or a “negative” image of the object's thermal signature, a difference image between the thermal signatures of a false object and the object or a camouflage image of random features having approximately the same spatial frequency as the object's thermal signature. The goal being to confuse or fool, even for a short period of time, the warfighting or surveillance system or human observer that uses a broadband IR sensor to acquire and view thermal images of the scene.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: May 5, 2015
    Assignee: Raytheon Company
    Inventors: Rigel Quinn Woida-O'Brien, Stephanie Barnes
  • Patent number: 9012110
    Abstract: A method for the production of a holographic sensor which comprises a support medium supporting a reflection hologram wherein the support medium interacts with its physical or chemical environment to create an optical response which is a change in one or more optical properties of the hologram, the method comprising the steps of: a) introducing a colloidal dispersion of a recording material into the support medium; and b) ablating the colloidal particles of the recording material using a pulsed laser to form the holographic element in the support medium. The method of production can be used to introduce a reflection holographic grating into a hydrophobic support medium, in particular, polydimethylsiloxane (PDMS), which possesses an extraordinary ability to swell in the presence of both liquid and/or gaseous low molecular weight hydrocarbons and organic solvents and thus has many applications as a holographic sensor.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: April 21, 2015
    Assignee: Cambridge Enterprise Limited
    Inventors: Christopher Robin Lowe, Colin Alexander Bennett Davidson, Jeffrey Blyth
  • Patent number: 8999608
    Abstract: The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers, and photoinitiators, to the use of the photopolymer formulation for producing optical elements, in particular for producing holographic elements and images, to a method for illuminating holographic media made of the photopolymer formulation, and to special fluorourethanes.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: April 7, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Thomas Rölle, Friedrich-Karl Bruder, Thomas Fäcke, Marc-Stephan Weiser, Dennis Honel
  • Patent number: 8993219
    Abstract: A method and an apparatus for forming a surface relief microstructure, especially an optically variable image on a paper substrate are provided, the method comprising the steps of: A) applying a curable composition to at least a portion of the frontside of the paper substrate; B) contacting at least a portion of the curable composition with surface relief microstructure, especially optically variable image forming means; C) curing the composition by using at least one UV lamp (1, 2, 3) which is arranged on the backside of the paper substrate; D) optionally depositing a layer of a transparent high refractive index material and/or a metallic layer on at least a portion of the cured composition, wherein the lamp (1, 2, 3) having emission peak(s) in the UV-A and near VIS range and the curable composition comprises at least a photoinitiator which absorbs in the UV-A region and preferably in the near VIS range.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: March 31, 2015
    Assignee: BASF SE
    Inventors: Michelle Richert, Thomas Bolle, Roland Fleury
  • Patent number: 8982437
    Abstract: A hologram recording film manufacturing method includes the steps of obtaining a laminated structure by alternately laminating M (where M?2) photosensitive material precursor layers including a photosensitive material and at least one (M?1) resin layer on one another, obtaining M photosensitive material layers, where at least two interference fringes with a desired pitch and a desired slant angle are formed on each of the M photosensitive material layers, from the M photosensitive material precursor layers by irradiating the laminated structure with a reference laser light beam and an object laser light beam, and making the slant angles of the M photosensitive material layers different from each other while retaining the pitch value, which is defined on a face of the photosensitive material layer, by irradiating the laminated structure with an energy ray from the laminated structure's one face side, and heating the laminated structure.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: March 17, 2015
    Assignee: Sony Corporation
    Inventors: Mieko Kuwahara, Takuji Yoshida, Katsuyuki Akutsu
  • Patent number: 8956786
    Abstract: The invention is concerned with a volume hologram medium obtained by multiple recording of holograms, which is improved in terms of just only security for forgery prevention but also aesthetics. A volume hologram medium 29? comprises a reflection hologram in which a stereoscopic image of a three-dimensional object and an image of a plane pattern of a mask plate are recorded by interference of the same reference light beams having the same angle of incidence and the same wavelength with object light beams having mutually different angles of incidence. The stereoscopic image of the three-dimensional object is reconstructed in the form of diffracted light 31 in a singlecolor and in angle relations close to recording conditions, and the image of a plane pattern of the mask plate is reconstructed as diffracted light 32b, 32?b at various angles of incidence of white illumination light 30 and in different colors depending on those angles of incidence.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: February 17, 2015
    Assignee: DAI Nippon Printing Co., Ltd.
    Inventor: Daijiro Kodama
  • Patent number: 8927178
    Abstract: The present invention relates to a process for the preparation of a polymeric relief structure by a) coating a substrate with a first coating composition comprising one or more radiation-sensitive ingredients, d) locally treating the coated substrate with electromagnetic radiation having a periodic or random radiation-intensity pattern, forming a latent image, e) polymerizing and/or crosslinking the resulting coated substrate to a first coating. This process is improved by applying a second coating composition on top of the first coating composition, said second coating composition comprising either an organic compound (Co) of a monomeric nature and wherein Co is also polymerized during the process, or wherein said second coating comprises a dissolved polymer (Cp). As a result a polymeric relief structure is obtained, where a substrate is coated with a functional, stacked, bi-layer, in which each layer exhibits a specific, and from each other differing function.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: January 6, 2015
    Assignee: Stichting Dutch Polymer Institute
    Inventors: Cees C. Bastiaansen, Dirk Jan Broer, Carlos C. Sanchez
  • Patent number: 8921012
    Abstract: The subject matter of the invention is a method for producing illuminated, holographic media comprising a photopolymer formulation having the adjustable mechanical modulus GUV. A further subject matter of the invention is an illuminated, holographic medium that can be obtained by means of the method according to the invention.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: December 30, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Marc-Stephan Weiser, Thomas Rölle, Friedrich-Karl Bruder, Thomas Fäcke, Dennis Hönel
  • Patent number: 8921011
    Abstract: A method is provided for mastering optically variable devices (OVDs) used to authenticate optical discs. The method generally includes the steps of providing a laser beam recorder (LBR), introducing a substrate to the LBR, and exposing a portion of the substrate to the LBR. The mastering system thus includes the LBR, which has a laser that emits a beam, a processor or computer for programming or otherwise controlling the beam in order to expose the substrate and create the desired optical effect. Depending on the material used for the substrate, the exposure is then developed, if necessary, and processed to generate a master for the OVD. The OVD can then be replicated in order to provide authentic resultant products or articles, such as optical discs.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: December 30, 2014
    Assignee: 3dcd, LLC
    Inventors: Nigel C. Abraham, Holger Hofmann, Raymond L. Keating
  • Patent number: 8900775
    Abstract: A hologram recording material includes a polymerizable monomer (A) that is active in radical polymerization but is substantially inactive in cationic polymerization, a polymerizable monomer (B) that is active in cationic polymerization but is substantially inactive in radical polymerization, and an initiator system (C) that polymerizes at least one of the polymerizable monomer (A) and the polymerizable monomer (B) through irradiation with light. The polymerizable monomer (A) and the polymerizable monomer (B) each have, in its structure, a moiety selected from the group consisting of aromatic rings, halogen atoms other than a fluorine atom, and sulfur atoms not derived from a cyclic sulfide or a mercapto group. A hologram recording medium includes a recording layer composed of the hologram recording material.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: December 2, 2014
    Assignee: TDK Corporation
    Inventors: Naoki Hayashida, Shohei Fujii, Jiro Yoshinari