Having Particular Recording Medium Patents (Class 359/3)
  • Patent number: 10983328
    Abstract: Polarized light which is emitted from an optical fiber becomes circular polarized light by passing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: April 20, 2021
    Assignees: NIKON CORPORATION, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yumiko Ouchi, Hisao Osawa, Mats G. L. Gustafsson, David A. Agard
  • Patent number: 10957722
    Abstract: A method of manufacturing a flexible device includes joining a first surface of a support substrate to a back surface of a flexible substrate, the first surface being opposite to a second surface of the support substrate; forming an element layer on a front surface of the flexible substrate; and performing multidirectional oblique irradiation of an interface and its vicinity between the support substrate and the flexible substrate with laser light from the second surface of the support substrate to detach the support substrate from the flexible substrate.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: March 23, 2021
    Assignee: JOLED INC.
    Inventors: Tomoatsu Kinoshita, Takashige Fujimori, Yuichi Kato
  • Patent number: 10921236
    Abstract: Example embodiments relate to an integrated lens-free imaging device. One embodiment includes a lens-free imaging device for imaging a sample. The lens-free imaging device includes a radiation guiding structure that includes a first surface parallel with a second surface. The lens-free imaging device also includes an imaging region. The radiation guiding structure is adapted for receiving an incoming radiation wave, thereby obtaining a confined radiation wave. At least one perturbation is present in the radiation guiding structure for generating, from the confined radiation wave, a first radiation wave and a second radiation wave. The radiation guiding structure is configured to direct the first radiation wave out of the radiation guiding structure toward the first surface to a sample measurement region. The radiation guiding structure is further configured to direct the second radiation wave toward the second surface to the imaging region.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 16, 2021
    Assignee: IMEC VZW
    Inventor: Xavier Rottenberg
  • Patent number: 10852481
    Abstract: An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a lateral position. The second waveguide includes a second DOE coupled thereto and disposed at the lateral position. The third waveguide includes a third DOE coupled thereto and disposed at the lateral position. The eyepiece further includes a first optical filter disposed between the first waveguide and the second waveguide at the lateral position, and a second optical filter positioned between the second waveguide and the third waveguide at the lateral position.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: December 1, 2020
    Assignee: Magic Leap, Inc.
    Inventors: Ivan Li Chuen Yeoh, Lionel Ernest Edwin, Hui-Chuan Cheng
  • Patent number: 10852462
    Abstract: An optical device comprises a first grating and a second grating formed on or attached to a dielectric layer, and configured to simultaneously couple an optical field interacting therewith into two distinct Fano-Feshbach resonances.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: December 1, 2020
    Assignee: Ramot at Tel-Aviv University Ltd.
    Inventor: Alon Bahabad
  • Patent number: 10809541
    Abstract: An illumination device includes an optical element including a hologram recording medium capable of diffusing a coherent light beam, the hologram recording medium comprising a plurality of regions, each region diffusing a coherent light beam to an illuminated region corresponding to that region, and an irradiation device configured to irradiate the optical element with the coherent light beam so as to allow the coherent light beam to scan the hologram recording medium. The coherent light beam incident to a position existing in each region of the hologram recording medium is diffused to an entire region of the illuminated region corresponding to the region in order to illuminate the entire region of the illuminated region.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: October 20, 2020
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Makio Kurashige, Kazutoshi Ishida, Tomoe Takanokura, Yasuyuki Ooyagi
  • Patent number: 10802441
    Abstract: The present disclosure provides an optical modulation device, an optical modulation method and a holographic display apparatus. The optical modulation device is configured to perform optical modulation of a light beam and comprising: an amplitude modulator, configured to perform amplitude modulation of the light beam based on amplitude information in complex amplitude information of each pixel of a digital hologram; an optical scanning assembly, configured to scan the light beam within a predetermined range; a phase modulator, configured to perform phase modulation of the light beam based on phase information in the complex amplitude information.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: October 13, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Bingchuan Shi
  • Patent number: 10613331
    Abstract: Systems, devices, and methods for optical splitters are described. An optical splitter includes a transparent polygonal structure having an input side to receive light from a light source and an output side that is segmented into multiple facets. Each facet is engineered to provide a respective planar surface that is oriented at a different angle in each of at least two spatial dimensions relative to the other facets in order to refract and route a respective portion of the light along a respective set of optical paths. The input side may be faceted as well to further refine the optical paths. A particular application of the polygonal structure in an optical splitter providing eyebox expansion by exit pupil replication in a scanning laser-based wearable heads-up display is described in detail.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: April 7, 2020
    Assignee: North Inc.
    Inventors: Joshua Moore, Lloyd Frederick Holland
  • Patent number: 10583618
    Abstract: A method of applying a pattern formed of two different materials to a pattern support layer includes: providing a die form having a surface with recesses defining the pattern; applying a first curable material to a surface first region, received in some of the first region recesses and partially filling a first region recess set; applying a second curable material to some of the surface first region, the second curable material at least partially fills the first set of the first region recesses; contacting a pattern support layer with the die form surface to cover the recesses containing both the first and second curable materials; separating the pattern support layer from the die form surface, the first and second curable materials in the covered recesses removed therefrom and retained on the pattern support layer; and curing the first and second curable materials during and/or after the second and third steps.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: March 10, 2020
    Assignee: DE LA RUE INTERNATIONAL LIMITED
    Inventor: Brian William Holmes
  • Patent number: 10553180
    Abstract: A structured film for use with a display comprises an optically transmissive surface including a plurality of walls. When the film is placed in an operative position with respect to the display, the walls extend away from the display at different heights and surround light emitters of the display. The film operates as a diffraction grating and the walls are configured to generate selected diffraction orders for each light emitter, including generating a diffraction order for a first light emitter and a diffraction order for a second light emitter adjacent to the first light emitter such that a predefined portion of light energy radiated by the first light emitter is permitted to spread toward the second light emitter. The film minimizes the screen-door effect and can be used in combination with local contrast control over a region of interest.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: February 4, 2020
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Youngshik Yoon, Cheonhong Kim
  • Patent number: 10534121
    Abstract: The present invention provides a means for suppressing an occurrence of a ghost by enhancing diffraction efficiency of a holographic optical element having a volume hologram recording layer. The present invention is a holographic optical element including: a volume hologram recording layer containing a photopolymer; and at least one adjacent layer which is in contact with the volume hologram recording layer and contains a resin, wherein a diffraction grating is formed so as to extend from the volume hologram recording layer to the adjacent layer.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: January 14, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Saburou Hiraoka, Kenichi Onaka, Daisuke Watanabe, Yuya Kubo, Kishio Tamura
  • Patent number: 10534196
    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: June 1, 2016
    Date of Patent: January 14, 2020
    Assignee: tooz technologies GmbH
    Inventors: Jörg Pütz, Katharina Rifai, Karsten Lindig
  • Patent number: 10502945
    Abstract: Polarized light which is emitted from an optical fiber becomes circular polarized light by passing through a first quarter wave plate. The circular polarized light which has entered a second quarter wave plate is converted into nearly linear polarized light which has S polarization. P polarization components are removed from the nearly linear polarized light by a polarizer, but the polarizer is not always necessary. The optical axis of the polarizer is set to be a direction which allows transmitting of S polarized light. The light that has passed through the polarizer is separated into diffracted lights by a diffraction grating, and is used as the structured illumination light.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: December 10, 2019
    Assignees: NIKON CORPORATION, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yumiko Ouchi, Hisao Osawa, Mats G. L. Gustafsson, David A. Agard
  • Patent number: 10492305
    Abstract: A composite article includes a conductive layer on at least a portion of a flexible substrate, wherein the conductive layer has a conductive surface. A patterned layer of a low surface energy material is on a first region of the conductive surface. An overcoat layer free of conductive particulates is on a first portion of a second region of the conductive surface unoccupied by the patterned layer. A via is in a second portion of the second region of the conductive surface between an edge of the patterned layer of the low surface energy material and the overcoat layer. A conductive material is in the via to provide an electrical connection to the conductive surface.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: November 26, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Matthew S. Stay, Shawn C. Dodds, Ann M. Gilman, Mikhail L. Pekurovsky, Daniel J. Theis, Matthew R. D. Smith
  • Patent number: 10471757
    Abstract: There is provided a versatile optical element applicable both to an electrode layer required in a bank bill field and to an optical element required in an ID field. In an optical element (1) according to one embodiment of the present invention, a first layer (2) is arranged on a second layer (3) having a relief structure on a surface thereof, and a first region (4) and a second region (5) are provided.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: November 12, 2019
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Kazuhiro Yashiki, Akira Nagano, Keitaro Sugihara, Tomoko Tashiro
  • Patent number: 10464062
    Abstract: A three-dimensional microfluidic platform including a substrate and a heterogeneous structure is provided. The heterogeneous structure located on the substrate includes prepolymer pattern, cured products, or a combination of at least one prepolymer patterns and at least one cured products, where the material characteristics of the cured products are different from each other, and the material characteristics of the prepolymer patterns are different from each other.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: November 5, 2019
    Assignee: National Taiwan University
    Inventors: Shih-Kang Fan, Min-Yu Chiang
  • Patent number: 10352519
    Abstract: A sequential turn signal for a vehicle may include a light source; a filter configured to project a beam from the light source; a shield configured to block a projection area of the beam passing through the filter; and a lens positioned at an opposite side of the filter in relation to the shield. A degree of blinking of the lens is changed according to a degree to which the projection area is blocked by the shield.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: July 16, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jik-Soo Shin, Keon-Soo Jin, Woo-Joo Jung, Kyung-Ho Kim, Sung-Uk Choi, Yong-Woo Park
  • Patent number: 10353343
    Abstract: In a process of manufacturing the volume holographic element, a holographic material layer is irradiated with reference light from the side of a second substrate in the oblique direction, and the holographic material layer is vertically irradiated with object light from the side of a first substrate in an interference exposure process. Since a first translucent anti-reflective layer is formed on the first surface of the first substrate, it is difficult that situation in which the reference light is reflected in the first surface in the oblique direction occurs. In addition, since a second translucent anti-reflective layer is formed on the second surface of the second substrate, it is difficult that a situation in which the object light is reflected in the second surface occurs.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: July 16, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Atsushi Saito
  • Patent number: 10332846
    Abstract: Composite cards formed in accordance with the invention include a security layer comprising a hologram or diffraction grating formed at or in the center, or core layer of the card. The hologram may be formed by embossing a designated area of the core layer with a diffraction pattern and depositing a thin layer of metal on the embossed layer. Additional layers may be selectively and symmetrically attached to the top and bottom surfaces of the core layer. A laser may be used to remove selected portions of the metal formed on the embossed layer, at selected stages of forming the card, to impart a selected pattern or information to the holographic region. The cards may be “lasered’ when the cards being processed are attached to, and part of, a large sheet of material, or after the sheets are die-cut into cards.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 25, 2019
    Assignee: COMPOSECURE, LLC
    Inventor: John Herslow
  • Patent number: 10300640
    Abstract: The present invention provides an imprint apparatus that molds an imprint material on a shot region of a substrate by using a mold, comprising a detection unit configured to detect first light with which a first mark of the mold and a second mark of the substrate are irradiated and measure a position deviation between the first mark and the second mark, a heating unit configured to irradiate the substrate with second light for heating the substrate and deforming the shot region, and a control unit configured to control alignment between the mold and the substrate based on the position deviation, wherein a parameter of the detection unit or the heating unit is set not to detect the second light by the detection unit while the first light is detected and the substrate is irradiated with the second light.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: May 28, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazuhiro Sato, Noriyasu Hasegawa, Takahiro Matsumoto
  • Patent number: 10261469
    Abstract: The present disclosure discloses a hologram recording device and a hologram recording method. The hologram recording device comprises an object imaging unit comprising a cavity for accommodating an object whose interior wall is a reflective surface, and a light modulating unit configured to produce incident light and reference light interfering with the incident light and to direct the incident light to the object imaging unit. The cavity is provided with an imaging aperture for imaging of the object and at least one light incidence aperture for allowing the incident light to enter the cavity and irradiate on the object, such that an image of the object is formed at a location corresponding to the imaging aperture outside the cavity, and image light produced upon the imaging of the object interferes with the reference light at the location for recording of an image surface hologram.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: April 16, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bei Niu, Naifu Wu, Wei Wei, Tao Wang
  • Patent number: 10151926
    Abstract: Systems, devices, and methods for preventing eyebox degradation in wearable heads-up displays (“WHUDs”) are described. A WHUD may provide an eyebox defined by multiple spatially-separated exit pupils, where the size of the eyebox is influenced by the spacing between the exit pupils. A larger eyebox is achieved with larger spacing between the exit pupils but a larger spacing between exit pupils is susceptible to the formation of gaps or blind spots in the eyebox (eyebox degradation) if bright environmental light causes the user's pupil to constrict to a size that is smaller than the spacing between the exit pupils. A material of variable chromism is included in the user's field of view to reduce the perceived brightness of environmental light and thereby prevent the user's pupil from constricting to a size smaller than the spacing between the exit pupils.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: December 11, 2018
    Assignee: NORTH INC.
    Inventor: Matthew Bailey
  • Patent number: 10139269
    Abstract: A distributed fiber optic acoustic sensing system includes a cable having a cable length. The cable has an elongated body having an outer surface, and at least one straight optical fiber extending parallel to a longitudinal axis of the cable along the cable length; and one or more non-straight optical fibers, such as two orthogonal sinusoidal optical fibers extending along the cable length, or a helically wrapped optical fiber extending along the cable length. The sensing system further has light transmitting and receiving means optically connected to the optical fibers.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 27, 2018
    Assignee: SHELL OIL COMPANY
    Inventors: Johannis Josephus Den Boer, Albena Alexandrova Mateeva, Jeremiah Glen Pearce, Jeffery Joseph Mestayer, William Birch, Jorge Louis Lopez, Johan Cornelis Hornman, Boris Nikolaevich Kuvshinov
  • Patent number: 10108087
    Abstract: A photocurable relief image printing blank comprising: (a) a support layer; (b) one or more photocurable layers disposed on the support layer, wherein the one or more photocurable layers comprise: i) a binder; ii) one or more monomers; iii) a photoinitiator; iv) an additive selected from the group consisting of phosphites, phosphines, thioether amine compounds, and combinations of one or more of the foregoing; and v) an additional component comprising amine moieties; (c) a laser ablatable masking layer disposed on the one or more photocurable layers, the laser ablatable masking layer comprising a radiation opaque material; and (d) optionally, a removable coversheet. Upon exposure and development, the resulting relief image printing element does not degrade if left under ambient UV lights for an extended period of time.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: October 23, 2018
    Assignee: MacDermid Graphics Solutions LLC
    Inventors: Chouaib Boukaftane, Jonghan Choi
  • Patent number: 10067470
    Abstract: In a process of manufacturing the volume holographic element, a holographic material layer is irradiated with reference light from the side of a second substrate in the oblique direction, and the holographic material layer is vertically irradiated with object light from the side of a first substrate in an interference exposure process. Since a first translucent anti-reflective layer is formed on the first surface of the first substrate, it is difficult that a situation in which the reference light is reflected in the first surface in the oblique direction occurs. In addition, since a second translucent anti-reflective layer is formed on the second surface of the second substrate, it is difficult that a situation in which the object light is reflected in the second surface occurs.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: September 4, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Atsushi Saito
  • Patent number: 10040239
    Abstract: Disclosed embodiments include the formation of a manufacturing part by a process in which three-dimensional patterns of excitation are produced in a bulk material, and the three-dimensional patterns intersect to cause interference. The interference is used to perform physical or chemical conversion of the bulk material into an article of manufacture having a geometry corresponding to a three-dimensional projection produced from the intersection of the three-dimensional patterns.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: August 7, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Alfred E. Brown, Jr.
  • Patent number: 10036102
    Abstract: A bismuth and magnesium co-doped lithium niobate crystal includes Li2CO3, Nb2O5, Bi2O3 and MgO, wherein the molar ratio of [Li] and [Nb] is 0.90-1.00, the molar percentage of Bi2O3 in the mixture is 0.25-0.80%, and the molar percentage of MgO in the mixture is 3.0-7.0%. The bismuth and magnesium co-doped lithium niobate crystal has enhanced photorefraction, improved photorefractive sensitivity, shortened holographic grating saturation writing time, and the photorefractive diffraction efficiency can reach up to 17%. The response time is only 170 ms, when the holographic storage experiment is carried out using 488 nm continuous laser. Therefore, this crystal can be used in the field of holographic imaging.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: July 31, 2018
    Assignees: NANKAI UNIVERSITY, TAISHAN SPORTS INDUSTRY GROUP CO., LTD.
    Inventors: Yongfa Kong, Dahuai Zheng, Shiguo Liu, Jingjun Xu, Peiming Xu, Zhiyong Bian, Shaolin Chen, Ling Zhang, Hongde Liu
  • Patent number: 10031479
    Abstract: Lighting information comprising at least the reflectance data of a plurality of regions of an object surface is generated and printed out as a series of relightable holograms. Each of the printed holograms comprises the reflectance data of a corresponding region of the object. A model of the object is generated such that the model also comprises a plurality of portions corresponding to the regions of the object surface. The series of holograms are each affixed to a portion of the model such that a particular hologram of the series which encodes the reflectance data of a particular region of the object is affixed to the corresponding portion of the model. In an embodiment, the model of the object is generated from a metal. The series of holograms is engraved directly onto the metallic model such that a particular hologram of the series which encodes the reflectance data of a particular region of the object is engraved onto the corresponding portion of the metallic model.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: July 24, 2018
    Assignee: OTOY, INC.
    Inventor: Julian Michael Urbach
  • Patent number: 10031478
    Abstract: Lighting information comprising at least the reflectance data of a plurality of regions of an object surface is generated and printed out as a series of relightable holograms. Each of the printed holograms comprises the reflectance data of a corresponding region of the object. A model of the object is generated such that the model also comprises a plurality of portions corresponding to the regions of the object surface. The series of holograms are each affixed to a portion of the model such that a particular hologram of the series which encodes the reflectance data of a particular region of the object is affixed to the corresponding portion of the model. In an embodiment, the model of the object is generated from a metal. The series of holograms is engraved directly onto the metallic model such that a particular hologram of the series which encodes the reflectance data of a particular region of the object is engraved onto the corresponding portion of the metallic model.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: July 24, 2018
    Assignee: OTOY, INC.
    Inventor: Julian Michael Urbach
  • Patent number: 9989509
    Abstract: An apparatus may be configured to test a beverage, the apparatus may include but is not limited to, a food container, wherein the food container includes a material. An indicator may be combined with at least a portion of the material of the food container, wherein the indicator may be associated with a brand profile that may identify a brand of the food, wherein the indicator may visibly react when the indicator is contacted with the food to show whether the food is identified as the brand of the food, and wherein the visible reaction may be shown on at least the portion of the material of the food container via the indicator combined with at least the portion of the material of the food container.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: June 5, 2018
    Assignee: DrinkSavvy, Inc.
    Inventors: Michael T. Abramson, Alex Nivorozhkin, Nelson Landrau, John C. MacDonald, Brendan Walker
  • Patent number: 9958682
    Abstract: Systems, devices, and methods for optical splitters are described. An optical splitter includes a transparent polygonal structure having an input side to receive light from a light source and an output side that is segmented into multiple facets. Each facet is engineered to provide a respective planar surface that is oriented at a different angle in each of at least two spatial dimensions relative to the other facets in order to refract and route a respective portion of the light along a respective set of optical paths. The input side may be faceted as well to further refine the optical paths. A particular application of the polygonal structure in an optical splitter providing eyebox expansion by exit pupil replication in a scanning laser-based wearable heads-up display is described in detail.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: May 1, 2018
    Assignee: THALMIC LABS INC.
    Inventors: Joshua Moore, Lloyd Frederick Holland
  • Patent number: 9921473
    Abstract: 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: Grant
    Filed: March 24, 2015
    Date of Patent: March 20, 2018
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Fäcke, Friedrich-Karl Bruder, Thomas Rölle, Marc-Stephan Weiser, Dennis Hönel, Horst Berneth, Günther Walze, Rainer Hagen
  • Patent number: 9766375
    Abstract: In the antireflection film, a hydrogenated carbon film as a first layer is formed on a surface of an optical substrate. A MgF2 film as a second layer having a lower refractive index than the first layer is formed on the first layer and functions as a low refractive index layer. The hydrogenated carbon film and the MgF2 film are formed using a RF magnetron sputtering equipment. During the formation of the hydrogenated carbon film, a mixed gas of argon and hydrogen is supplied to a vacuum chamber such that some of C—C bonds in the film are replaced with C—H bonds. Some of C—C bonds are cut by hydrogenation, and strains (stress) accumulating due to C—C bonds can be relaxed. As a result, the antireflection film which has excellent adhesiveness and is not broken is obtained.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: September 19, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Hiroki Takahashi, Takeshi Iida
  • Patent number: 9703194
    Abstract: The invention relates to an assembly comprising a substrate and a photopolymer film, which are joined to one another partably at least in sections, the substrate comprising polyethylene terephthalate, and the photopolymer film comprising three-dimensionally crosslinked polyurethane matrix polymers, a writing monomer and a photoinitiator, characterized in that the substrate, after seven-day incubation at 23° C. in a 0.5 volume percent butyl acetate solution of the dye of formula (I) has an L value L1 and before the incubation an L value of L0, the L values being determined by CieLAB measurements, and the difference between the L values L1 and L0 satisfying the formula (II) L1?L0>?0.25??(formula II).
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: July 11, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Marc-Stephan Weiser, Horst Berneth, Friedrich-Karl Bruder, Thomas Rölle, Dennis Hönel, Thomas Fäcke
  • Patent number: 9599958
    Abstract: In the specification and drawings, a collinear holographic storage medium is described and shown with a recording layer, wherein the lateral linear thermal expansion coefficient of the recording layer is substantially the same as the linear thermal expansion coefficient of the material of the recording layer.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: March 21, 2017
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Ching-Cherng Sun, Yeh-Wei Yu
  • Patent number: 9453800
    Abstract: An apparatus for detecting a defect of an object may include a light emitter configured to emit straight polarized lights having different polarized directions, a spatial filter having openings through which the straight polarized lights selectively pass, an optical member configured to condense the straight polarized lights, which pass through the openings, on the object, and a light detector configured to detect lights reflected from the object. Thus, the defect may be accurately detected in a short time.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: September 27, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Akio Ishikawa, Mitsuhiro Togashi, Mitsunori Numata
  • Patent number: 9377567
    Abstract: A diffraction grating and a method for fabricating the diffraction grating. In one embodiment, a layer of photo-monomer is applied to a substrate and the photomonomer is exposed to a collimated beam of light to form the diffraction grating. The intensity of the collimated beam of light incident on the layer of photo-monomer may have substantially no spatial variation across the first collimated beam of light.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: June 28, 2016
    Assignee: HRL Laboratories, LLC
    Inventors: Alan J. Jacobsen, Oleg M. Efimov, William Carter, Sophia S. Yang
  • Patent number: 9354604
    Abstract: Provided are an optically addressable spatial light modulator (OASLM) divided into a plurality of segments, and an apparatus and method for displaying a holographic three-dimensional (3D) image using the OASLM. The holographic 3D image display apparatus includes a first light source which emits a write beam, an electric addressable spatial light modulator (EASLM) which modulates the write beam emitted from the first light source according to hologram information regarding a 3D image, a second light source which emits a read beam, an OASLM which receives the write beam modulated by the EASLM and modulates the read beam emitted from the second light source according to hologram information included in the modulated write beam, a scanning optical unit which projects the write beam modulated by the EASLM onto the OASLM, and a Fourier lens which focuses the read beam modulated by the OASLM onto a predetermined space to form the 3D image.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: May 31, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CAMBRIDGE ENTERPRISE LIMITED
    Inventors: Hong-seok Lee, Neil Collings, Daping Chu, Hoon Song, William Alden Crossland, Jhen Si Chen
  • Patent number: 9263697
    Abstract: Although an organic resin substrate is highly effective at reducing the weight and improving the shock resistance of a display device, it is required to improve the moisture resistance of the organic resin substrate for the sake of maintaining the reliability of an EL element. Hard carbon films are formed to cover a surface of the organic resin substrate and outer surfaces of a sealing member. Typically, DLC (Diamond like Carbon) films are used as the carbon films. The DLC films have a construction where carbon atoms are bonded into an SP3 bond in terms of a short-distance order, although the films have an amorphous construction from a macroscopic viewpoint. The DLC films contain 95 to 70 atomic % carbon and 5 to 30 atomic % hydrogen, so that the DLC films are very hard and minute and have a superior gas barrier property and insulation performance.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 16, 2016
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Yasuyuki Arai
  • Patent number: 9195215
    Abstract: This invention relates to a holographic medium comprising a protective layer and a photopolymer film which is bonded to the protective layer and contains polyurethane matrix polymers, acrylate writing monomers and photoinitiators, wherein the protective layer is impermeable to the constituents of the photopolymer film, is optically clear and is transparent to electromagnetic radiation having a wavelength in the range of from 350 to 800 nm. The invention further provides the use of a holographic medium according to the invention in the production of holograms, and a process for the production of a holographic medium according to the invention.
    Type: Grant
    Filed: November 11, 2012
    Date of Patent: November 24, 2015
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Marc-Stephan Weiser, Daniel Hentschel, Joachim Petzoldt, Pantea Nazaran, Sebastian Dörr, Dirk Dijkstra, Ute Flemm, Dennis Hönel, Friedrich-Karl Bruder, Thomas Fäcke, Thomas Rölle
  • Patent number: 9091806
    Abstract: An integrated circuit includes a holographic recording material substantially filling a cavity in a semiconductor layer. During operation of the integrated circuit, a holographic pattern in the holographic recording is reconstructed and used to diffract an optical signal propagating in a plane of an optical waveguide, which is defined in the semiconductor layer out of the plane through the cavity. In this way, the holographic recording material may be used to couple the optical signal to an optical fiber or another integrated circuit.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: July 28, 2015
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Xuezhe Zheng, Ashok V. Krishnamoorthy, Kannan Raj, James R. Adleman
  • 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: 8982288
    Abstract: The invention provides a process capable of fabricating a cholesteric liquid crystal medium having a volume hologram with efficiency yet without recourse to complicated steps such as an alignment step. This is achievable as follows. A volume hologram layer is formed on a substrate, and a cholesteric liquid crystal layer is then formed on another substrate. The volume hologram layer and the cholesteric liquid crystal layer are laminated together via a bonding layer. Further, a bonding for lamination onto an application member is formed on either the volume hologram layer side or the cholesteric liquid crystal layer side to obtain a cholesteric liquid crystal medium having a volume hologram.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: March 17, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masachika Watanabe, Masanori Umeya, Koji Eto, Tsuyoshi Yamauchi
  • 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: 8976432
    Abstract: A hologram-including medium is disclosed, which is an integrated medium on which at least two items of identification information are recorded, wherein one of the two items of identification information is holographic identification information which can be observed within a predetermined angle range when illuminated from a predetermined angle.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: March 10, 2015
    Assignee: Sony Corporation
    Inventors: Akira Shirakura, Takashi Matsubara
  • Patent number: 8934159
    Abstract: A see-through display including a light source for emitting light, a projection optical system for projecting the light emitted by the light source, and a volume hologram for deflecting the light projected by the projection optical system. The volume hologram has a linear expansion coefficient of ? (/° C.) and interference fringes recorded with recording light having a wavelength of ? (nm). The wavelength of the light emitted by the light source has a temperature dependency of K (nm/° C.), and the wavelength ? (nm) and the temperature dependency K (nm/° C.) satisfy the relationship of 0?K/??2?.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: January 13, 2015
    Assignee: Panasonic Corporation
    Inventors: Shinichi Shikii, Keiji Sugiyama, Shinichi Kadowaki
  • 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: 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
  • Publication number: 20140376207
    Abstract: The invention relates to optical device for illuminating a pixel matrix and/or a controllable spatial light modulator for a display, in particular a stereoscopic or holographic 3D display, wherein the optical device comprises a layer formed as a light waveguide, in which illumination light is guided in a light guiding layer, in particular according to the principle of total internal reflection, between two reflection layers lying opposite one another, wherein an extraction means for extracting illumination light from the light guiding layer is provided. The optical device is characterized in that the extraction means has different properties, in particular different optical properties, at a first extraction position than at another extraction position different to the first extraction position.
    Type: Application
    Filed: January 11, 2013
    Publication date: December 25, 2014
    Inventor: Gerald Futterer