Having Particular Optical Characteristic Modifying Chemical Composition Patents (Class 385/141)
  • Patent number: 10816732
    Abstract: Embodiments of an optical adhesive are provided. The optical adhesive includes about 20% to about 60% by volume of first monomers. The first monomers have at least two acrylate or methacrylate groups. The optical adhesive also includes about 40% to about 80% by volume of second monomers. The second monomers have at least one fluorine atom and at least one acrylate or methacrylate group. The optical adhesive has a refractive index of from about 1.40 to about 1.55, and in the temperature range of about 10° C. to about 85° C., the refractive index of the optical adhesive has a thermal drift dn/dT of less than about ?4×10?4/° C. Embodiments of a mechanical joint between two optical fiber segments using the optical adhesive and embodiments of a method for joining two optical fiber segments are also provided.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: October 27, 2020
    Assignee: Corning Research & Development Corporation
    Inventor: Shawn Michael O'Malley
  • Patent number: 10803578
    Abstract: The invention provides systems and methods for imaging a sample. In various embodiments, the invention provides a system comprising an image sensor, a laser for emitting excitation light for an infrared or near-infrared fluorophore, a visible light source, a notch beam splitter, a notch filter, a synchronization module, an image processing unit, an image displaying unit, and light-conducting channels. In various embodiments, the present invention provides a system comprising an image sensor, a laser for emitting excitation light for an infrared or near-infrared fluorophore, a laser clean-up filter, a notch filter, a white light source, an image processing unit, an image displaying unit, and light-conducting channels. In accordance with the present invention, the image sensor can detect both visible light and infrared light.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: October 13, 2020
    Assignee: Cedars-Sinai Medical Center
    Inventors: Pramod Butte, Adam Mamelak
  • Patent number: 10775558
    Abstract: A single mode optical fiber includes: (i) a silica based core having a refractive index profile with an alpha (?) between 1.8 and 200, a relative refractive index ?1max %, and an outer radius r1, wherein 7 microns>r1?4.5 microns, the core further comprising silica doped with chlorine, wherein the maximum chlorine concentration in the core is greater than 0.5 wt %; and wherein 1.40<X<1.7 where X=[(2?n1(2?1max % r12)1/2/Vc)+(0.0028*Vm)], n1 is maximum refractive index of the core, Vm is moat volume, and Vc is a function of core alpha (?) and (ii) an outer cladding region surrounding the first cladding region, the outer cladding region having a relative refractive index ?4% such that ?1max>?4%.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: September 15, 2020
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Ming-Jun Li, Pushkar Tandon
  • Patent number: 10718908
    Abstract: An optical fiber array with high reliability, which relates to the technical field of optical fibers is disclosed. The optical fiber array is composed of three parts, namely, optical fiber positioning substrate (1), cover plate (2) and optical fiber ribbon (3). One end of the optical fiber ribbon is striped to be a naked fiber (4). The naked fiber (4) is pressed into the micro-groove array of the optical fiber positioning substrate (1) by the cover plate (2) and glued and fixed with a glue layer (5), and a transitional region between the stripped part and the unstripped part of the optical fiber ribbon (3) is glued and fixed onto a rear half of the optical fiber positioning substrate (1) with the glue layer (5). It has a reasonable and novel structural design.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: July 21, 2020
    Assignee: Senko Advanced Components, Inc
    Inventor: Kaifa Yang
  • Patent number: 10705268
    Abstract: Embodiments of the present disclosure generally relate to a method for forming an optical component, for example, for a virtual reality or augmented reality display device. In one embodiment, the method includes forming a first layer on a substrate, and the first layer has a first refractive index. The method further includes pressing a stamp having a pattern onto the first layer, and the pattern of the stamp is transferred to the first layer to form a patterned first layer. The method further includes forming a second layer on the patterned first layer by spin coating, and the second layer has a second refractive index greater than the first refractive index. The second layer having the high refractive index is formed by spin coating, leading to improved nanoparticle uniformity in the second layer.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: July 7, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Jinxin Fu, Ludovic Godet, Wayne McMillan
  • Patent number: 10627589
    Abstract: An optical cable includes an optical module which includes a strength member, a plurality of optical fibers arranged about the strength member, the optical fibers being arranged substantially on a circumference concentric with the strength member, and a retaining element arranged about the plurality of optical fibers.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: April 21, 2020
    Assignee: PRYSMIAN S.p.A.
    Inventors: Ian Dewi Lang, Lee Anthony Spicer, Martin Vincent Davies
  • Patent number: 10585254
    Abstract: A method for providing a vertical optical via for a semiconductor substrate is described. The semiconductor substrate has a front surface and a back side. A hard mask having an aperture therein is formed on the front surface. Part of the semiconductor substrate exposed by the aperture is removed to form a via hole. The via hole has a width not exceeding one hundred micrometers and a bottom. Cladding layer(s) and core layer(s) are provided in the via hole. The core layer(s) have at least a second index of refraction greater than that of the core layer(s). A portion of the semiconductor substrate including the back side is removed to expose a bottom portion of the core layer(s) and a bottom surface of the semiconductor substrate. The vertical optical via includes the cladding and core layers. The vertical optical via extends from the front surface to the bottom surface.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: March 10, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daniel N. Carothers, Titash Rakshit
  • Patent number: 10551544
    Abstract: An optical device includes a lightguide having a first pair of external surfaces parallel to each other, and at least two sets of facets. Each of the sets including a plurality of partially reflecting facets parallel to each other, and between the first pair of external surfaces. In each of the sets of facets, the respective facets are at an oblique angle relative to the first pair of external surfaces, and at a non-parallel angle relative to another of the sets of facets. The optical device is particularly suited for optical aperture expansion.
    Type: Grant
    Filed: May 13, 2018
    Date of Patent: February 4, 2020
    Assignee: Lumus Ltd.
    Inventors: Yochay Danziger, Elad Axel Sharlin
  • Patent number: 10431455
    Abstract: The interaction between multiple intense ultrashort laser pulses and solids typically produces a regular nanoscale surface corrugation. A coupled mechanism has been identified that operates in a specific range of fluences in GaAs that exhibits transient loss of the imaginary part of the dielectric function and X2, which produces a unique corrugation known as high spatial frequency laser induced periodic surface structures (HSFL). This mechanism is unique in that the corrugation does not involve melting or ablation.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 1, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Michael J. Abere, Steven Yalisove, Ben Torralva
  • Patent number: 10379681
    Abstract: Disclosed is a touch sensor including a plurality of first optical waveguides arranged in a stripe form, a plurality of second optical waveguides located over the plurality of first optical waveguides, arranged in a stripe form, and intersecting the plurality of first optical waveguides, and an intermediate layer between the plurality of first optical waveguides and the plurality of second optical waveguides. Each of the plurality of first optical waveguides and the plurality of second optical waveguides includes a core including an elastomer as well as a clad in contact with the core other than side surfaces of the core perpendicular to a longitudinal direction of the core. The intermediate layer has a modulus of elasticity higher than that of the elastomer.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 13, 2019
    Assignee: Japan Display Inc.
    Inventor: Hsiang-Yuan Cheng
  • Patent number: 10352521
    Abstract: In various embodiments, a vehicle lamp is provided. The vehicle lamp includes at least one semiconductor light source, at least one light emission body, and a concentrator arranged between the at least one semiconductor light source and the respective light emission body. A larger light entrance area of the concentrator is separated from the at least one semiconductor light source by a gap. The concentrator at its smaller light exit area transitions into the light emission body. The light emission body has at least one region covered with a partly transmissive layer.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: July 16, 2019
    Assignee: OSRAM GmbH
    Inventors: Tobias Schmidt, Stephan Malkmus
  • Patent number: 10302601
    Abstract: A chemical detector for rapid, simultaneous detection of multiple chemicals including chemical warfare agents, toxic industrial chemicals, and explosives having one or more gas chromatography columns each with a chemosorbent or a chemo-reactive stationary phase and an infrared-transparent base, a bright infrared light source, a mechanism to direct the light source to any point along any of the columns, and an infrared sensor. Another disclosed detector has one or more gas chromatography columns each on the surface of a substrate having at least one infrared-transparent waveguide pattern, a bright infrared light source, and at least one ring resonator for each column, where each ring resonator is coated with a chemosorbent or a chemo-reactive stationary phase, and where each ring resonator spectroscopically probes the stationary phase. Also disclosed are the related methods for chemical detection.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: May 28, 2019
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: R. Andrew McGill, Robert Furstenberg, Viet K. Nguyen, Chris Kendziora, Michael Papantonakis, Todd H. Stievater
  • Patent number: 10253143
    Abstract: An object of the present invention is to provide a novel monolayer and multilayer film that can be employed also for use in interior and exterior members of vehicles, and that have excellent transparency, surface hardness, chemical resistance, and stain resistance such as lactic acid resistance and sunscreen resistance. The present invention is directed to a fluororesin film formed with (C) a fluororesin comprising (B) a fluorinated (meth)acrylic resin that contains a fluorine-containing alkyl(meth)acrylate polymer component; and a fluororesin-laminated acrylic resin film, wherein the fluororesin film layer is laminated on at least one face of a film layer comprising (A) an acrylic resin.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: April 9, 2019
    Assignee: KANEKA CORPORATION
    Inventors: Kouji Morita, Yukihiro Shimamoto, Kazuhito Wada, Taizo Aoyama
  • Patent number: 10185083
    Abstract: A waveguide for high efficiency transmission of high energy light useful in ablation procedures at predetermined bandwidths over predetermined distances comprising: an optical fiber core; a silanization agent; layered cladding surrounding the optical fiber core comprising: a first thin metal layer comprising at least two types of metals the first thin metal layer covalently bonded to the core and a second thin metal layer bonded to the second metal layer, and a catalyst component; wherein the silanization agent comprising organofunctional alkoxysilane molecule, such as 3-aminopropyltriethoxysilane (APTS), is a self supporting bridge between the surface of the optical fiber and the first metal layer; the first metal layer is uniformly chemisorbed onto the surface of the optical fiber by means of covalent Si—O—Si bonds with the optical fiber; further wherein the catalyst component derived from an activation solution for enhancing the layered cladding upon the optical fiber.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: January 22, 2019
    Inventors: Alexander Zilberman, Angelika Sokolowa, David Mizrahi
  • Patent number: 10130264
    Abstract: A polysiloxane elastomer containing liquid crystal lateral chain, and a smart watch made therefrom are disclosed. The polysiloxane elastomer containing liquid crystal lateral chain includes a polysiloxane backbone chain and a lateral chain formed by a liquid crystalline monomer and connected with the polysiloxane backbone chain, wherein the polysiloxane backbone chain is crosslinked by a crosslinking agent.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: November 20, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELETRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaojuan Wu, Jian Wang
  • Patent number: 10095020
    Abstract: A probe can be provided having a grating adapted for color spectrally encoded imaging. The probe can include a waveguide configuration, a light focusing configuration, and a grating configuration that can have a first grating pattern and a second grating pattern. The waveguide configuration can be configured and/or structured to cause to propagate a light having a first wavelength and a light having a second wavelength to propagate from the waveguide component, and the light focusing and waveguide configurations can provide the light to be incident on the grating configuration. The grating configuration can be configured and arranged such that the light having the first wavelength is diffracted by the first grating pattern to substantially the same location as the light having the second wavelength is diffracted by the second grating pattern.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: October 9, 2018
    Assignees: Canon U.S.A., Inc., The General Hospital Corporation
    Inventors: Guillermo J. Tearney, Dongkyun Kang, Mitsuhiro Ikuta
  • Patent number: 10092927
    Abstract: Ultrathin layers of organic polymers or organic-inorganic hybrid polymers are deposited onto a substrate using molecular layer deposition methods. The process uses vapor phase materials which contain a first functional group and react only monofunctionally at the surface to add a unit to the polymer chain. The vapor phase reactant in addition has a second functional group, which is different from the first functional group, or a blocked, masked or protected functional group, or else has a precursor to such a functional group.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: October 9, 2018
    Assignee: The Regents of the University of Colorado, a Body Corporate
    Inventors: Steven M. George, Arrelaine Allen Dameron, Nicole Marie Adamczyk Keaner, Byunghoon Yoon
  • Patent number: 10081919
    Abstract: The present invention provides for synthetic turf infill materials and methods of making such materials wherein the surfaces of the materials have been modified with hydrophilic properties. The various exemplary embodiments of the present invention include a method to modify the surface of synthetic turf infill through coating, crosslinking or other methods. The surface of the infill is modified to become substantially hydrophilic with low contact angles. The present invention also provides a process for producing surfaces with hydrophilic properties.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: September 25, 2018
    Inventor: Christopher Tetrault
  • Patent number: 10082630
    Abstract: A heat-reduced package of an optical fiber head comprising a delivery optical fiber (DOF), a cladding mode stripper, an optical end cap, a beam shaper, a window, and a housing operates for delivering the laser light from DOF to free space with a uniform temperature gradient inside the housing while maintaining beam quality. The cladding mode stripper comprising a section of cladding-exposed DOF inside bore of the glass ferrule fused together is effective to remove cladding modes from DOF. The optical end cap comprising a corrugated structure is configured to deflect the cladding modes, reduce optical feedback, and facilitate optical and thermal dispersion. The housing comprises another corrugated structure on an inner wall to absorb undesired optical energy. The housing may further comprise a cooling slot to disperse the heat accumulated in the housing to its surroundings.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: September 25, 2018
    Assignee: Lightel Technologies, Inc.
    Inventors: Chungho Hsia, Pai-Sheng Shen
  • Patent number: 10048436
    Abstract: An optical fiber includes an optical transmission medium having a core and a cladding; a primary resin layer disposed in contact with the optical transmission medium to coat the optical transmission medium; and a secondary resin layer coating the primary resin layer, wherein the primary resin layer comprises a cured product of an ultraviolet light curable resin composition comprising a urethane (meth)acrylate oligomer, a monomer and a photopolymerization initiator, and a compound containing phosphorus and tin as constituent atoms; and a Young's modulus of the primary resin layer is 0.5 MPa or less at 23° C.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: August 14, 2018
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yuya Homma, Kazuyuki Sohma, Kensaku Shimada
  • Patent number: 10035284
    Abstract: UV-curable glass fiber sizing compositions, glass fibers sized with a UV-curable sizing composition, sizing methods, and composites comprising such UV-curable sized glass fibers are disclosed.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: July 31, 2018
    Assignee: OCV Intellectual Capital, LLC
    Inventors: Patrick Moireau, Xavier Allonas, Celine Croutxe-Barghorn, Remi Pynaert
  • Patent number: 9791109
    Abstract: Provided is a display device in a mechanical method using wind, vibration. The mechanoluminescent display device includes a substrate having a predetermined shape, and projections formed with a predetermined pattern on the substrate. The projections are formed of a mixture of a stress luminescent material emitting light by mechanical energy which is applied and a stress transmission material transmitting the mechanical energy applied from the outside to the stress luminescent material.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: October 17, 2017
    Assignee: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Soon Moon Jeong, Seong Kyu Song
  • Patent number: 9759962
    Abstract: A liquid crystal display includes a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: September 12, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
  • Patent number: 9701899
    Abstract: The present inventions relate to optical components which include quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles include a ligand attached to a surface thereof, the ligand being represented by the formula: X-Sp-Z, wherein: X represents a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, an other nitrogen containing group, a carboxylic acid group, a phosphonic or arsonic acid group, a phosphinic or arsinic acid group, a phosphate or arsenate group, a phosphine or arsine oxide group; Sp represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; and Z represents: (i) a reactive group capable of communicating specific chemical properties to the nanocrystal as well as provide specific chemical reactivity to the surface of the nanocrystal, and/or (ii) a group that is cyclic, halogenated, or polar a-protic.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: July 11, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Craig Breen, John R. Linton, Jonathan S. Steckel, Marshall Cox, Seth Coe-Sullivan, Mark Comerford
  • Patent number: 9688822
    Abstract: The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane represented by a specific average unit formula, (B) an optional straight-chain organopolysiloxane having at least two alkenyl groups and not having any silicon-bonded hydrogen atoms in a molecule, (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, and (D) a hydrosilylation reaction catalyst. The curable silicone composition has high reactivity and forms a cured product with low gas permeability.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: June 27, 2017
    Assignee: DOW CORNING TORAY CO., LTD.
    Inventors: Michitaka Suto, Takashi Sagawa, Kasumi Takeuchi, Tomohiro Iimura, Kazuhiro Nishijima, Yoshitsugu Morita
  • Patent number: 9613732
    Abstract: A wire harness manufacturing method prevents inadvertent deformation of thermoplastic material and separation of thermoplastic material. A predetermined part of an electric wire 91 is accommodated in a through hole of a tubular body formed by connection between a first and second nest members (123, 124) of a nozzle (12), by integrally connecting first and second case body members (121, 122) of the nozzle (12), with the predetermined part of the electric wire 91 therebetween. An approximately tubular covering member (92) covering the predetermined part of the electric wire (91) is molded integrally with the thermoplastic material, by discharging thermoplastic material plasticized by a material plasticizing unit (11) from thermoplastic material discharge orifices (1213) and (1223) in the nozzle (12) to the outer periphery of the electric wire (91), while moving the electric wire (91) and the nozzle (12) relatively to each other.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: April 4, 2017
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Osamu Sato
  • Patent number: 9548406
    Abstract: A photoelectric conversion element includes a first electrode, a ferroelectric layer provided on the first electrode, and a second electrode provided on the ferroelectric layer, the second electrode being a transparent electrode, and a pn junction being formed between the ferroelectric layer and the first electrode or the second electrode.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: January 17, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Takayuki Yonemura, Yoshihiko Yokoyama, Yasuaki Hamada
  • Patent number: 9462683
    Abstract: The present invention provides a cooktop appliance with features for correcting the color of light passing through the cooking surface such that the light appears a desired to a user of the cooktop appliance. More specifically, a colored translucent ink may be applied to a light transmissive layer of a user interface assembly such that light passing through the ink and the cooking surface appears a desired color to the user.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: October 4, 2016
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: James Carter Bach
  • Patent number: 9459011
    Abstract: The present invention provides a cooktop appliance with features for correcting the color of light passing through the cooking surface such that the light appears a desired color to a user of the cooktop appliance. More specifically, a colored or fluorescent ink may be applied to, or a colored or fluorescent dye incorporated into, one or more light guides of a user interface assembly such that reflecting off of the interior surface of the light guides and passing through the cooking surface appears a desired color to the user.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: October 4, 2016
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: James Carter Bach
  • Patent number: 9420941
    Abstract: Autonomous/self-powering image detecting systems and their manufacturing technologies are disclosed. An antenna is used to communicate signals. A first energy harvester is used to harvest energy from blackbody radiation, RF signals, movement/vibration, or combination thereof. A power management system is used which controls the energy flow to and from the energy-storage. An image sensor to take the image, a lens, and a transmitter to transmit the images to an outside device are also used in this invention. According to this preferred embodiment, an energy harvester harnessing energy from blackbody radiation from and within the body, is used to extract enough energy to increase the operation time and also to make precision of the image detecting system.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 23, 2016
    Assignee: Banpil Photonics, Inc.
    Inventors: Achyut Dutta, Robert Olah
  • Patent number: 9416046
    Abstract: A method cleaving an end portion of an optical fiber involves providing a ferrule having a first end, a second end, and a ferrule bore extending between the first and second ends. An optical fiber is inserted through the ferrule bore so that an end portion of the optical fiber extends past an end face on the second end of the ferrule. At least one laser beam is emitted from at least one laser and directed to be incident on the end portion of the optical fiber at a first location. The at least one laser beam is emitted and directed to have a maximum beam width that is less than an outer diameter of the optical fiber at the first location so that the at least one laser can be operated to form a hole in the optical fiber at the first location.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: August 16, 2016
    Assignee: CORNING OPTICAL COMMUNICATIONS LLC
    Inventors: Joel Patrick Carberry, Anping Liu, Barada Kanta Nayak
  • Patent number: 9355787
    Abstract: This invention relates to a method for making soluble precursors to imides, polyimides, and polymers containing imide groups, and a method of making thin films of the same by solution casting and then removing the solubilizing group to produce thermally stable and insoluble materials.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 31, 2016
    Assignee: Colorado School of Mines
    Inventor: Daniel M. Knauss
  • Patent number: 9304250
    Abstract: A light emitting unit includes a light source and a light guiding member. The light guiding member includes a light incident guiding portion that is arranged to face a light emitting surface of the light source and have a light incident surface, on which light emitted from the light source is incident, is formed at one end thereof, and a plurality of branched extending light guiding portions that are branched from the light incident guiding portion and extend towards back surfaces of a plurality of display portions. The plurality of branched extending light guiding portions are so formed that, the end surfaces of the branched extending light guiding portions have larger areas in accordance with increase of the lengths in the extending directions of the branched extending light guiding portions.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: April 5, 2016
    Assignee: YAZAKI CORPORATION
    Inventor: Takahiro Hori
  • Patent number: 9277868
    Abstract: A vital sign measurement device includes a sensor fixation device, a sensor frame, an optical sensing system, and an output unit. The sensor fixation device is adapted to be placed against an anatomical location of a subject. The optical sensing system includes an optical waveguide, an optical source device to supply optical energy to the optical waveguide, and an optical detector to detect an amount of optical energy exiting the optical waveguide. The optical sensing system is adapted to sense an arterial pulse from the compression or flexing of at least a portion of the optical waveguide resulting in reduction of the amount of light exiting the optical waveguide. The output unit is configured to receive a signal indicative of the amount of light exiting the optical waveguide and to generate a measure of the vital sign based at least in part on the received signal.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: March 8, 2016
    Assignee: Tarilian Laser Technologies, Limited
    Inventors: John A. Borgos, Thomas A. Borgos, Troy Pongratz
  • Patent number: 9234129
    Abstract: A surface-modified quantum dot luminophore includes a quantum dot luminophore and a coating includes a fluorinated coating including a fluorinated inorganic agent, a fluorinated organic agent, or a combination of fluorinated inorganic and organic agents, the fluorinated coating generating hydrophobic surface sites and the coating is disposed on the surface of the silicate luminophore.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: January 12, 2016
    Assignees: Seoul Semiconductor Co., Ltd., LITEC-LP GMBH
    Inventors: Chung Hoon Lee, Walter Tews, Gundula Roth, Detlef Starick
  • Patent number: 9195005
    Abstract: A fully additive method for forming optical waveguides and devices, such as thermo-optic polymer switches and electro-optic polymer modulators, is disclosed. A first polymer material of refractive index N1 is coated onto a suitable substrate to form a first cladding layer. The first cladding is then selectively patterned using a mold to form an impression of the waveguide core into the first cladding layer. Next, a core layer is formed by ink-jet printing onto the imprinted first cladding layer with a core material of refractive index N2 (N2>N1). The core layer is subsequently coated by ink-jet printing with a second polymer material of refractive index N3 (N3<N2) to form a second cladding, resulting in an optical waveguide. An electrode may be ink-jet printed before coating the first cladding material or after coating the second cladding material, or both before and after coating, in order to form active photonic devices.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: November 24, 2015
    Assignee: Omega Optics, Inc.
    Inventors: Harish Subbaraman, Ray T. Chen
  • Patent number: 9175420
    Abstract: Disclosed are a method of growing a rare-earth oxyorthosilicate crystal and a crystal grown using the method. A melt is prepared by melting a first substance including at least one rare-earth element and a second substance including at least one element from group 7 of the periodic table. A seed crystal is brought into contact with the surface of the melt and withdrawn to grow the crystal.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: November 3, 2015
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Mark S. Andreaco, A. Andrew Carey, Piotr Szupryczynski
  • Patent number: 9142800
    Abstract: A composite material for LED's is provided. The composite material has a coating comprising scattering particles with an index of refraction greater than 1.6.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: September 22, 2015
    Assignee: SCHOTT AG
    Inventors: Matthias Bockmeyer, Eveline Rudigier-Voigt
  • Patent number: 9139467
    Abstract: Disclosed is an optical fiber formed from a preform that includes a clad component and a core component. The core component includes one or more precursor core materials. The precursor core materials and the clad materials are selected such that that the photoelastic constants of at least one precursor core material and the clad material are of opposite sign resulting in a final glass optical fiber of tailored Brillouin performance. The clad material may include an oxide glass having a positive photoelastic constant and the core component may include a precursor core material that has a negative photoelastic constant. During formation, the precursor core material can melt and interact with clad material that precipitates into the core to form a glass of at least one tailored Brillouin property, such as very low Brillouin gain.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: September 22, 2015
    Assignees: Clemson University, Board of Trustees of the Univ. of Illiniois—Urbana
    Inventors: John Ballato, Peter D. Dragic
  • Patent number: 9002165
    Abstract: Provided is an optical waveguide device capable of reducing stress that occurs inside an optical waveguide substrate due to a difference in a coefficient of thermal expansion. The optical waveguide device (10) includes an optical waveguide substrate (11) having a thickness of 30 ?m or less, and a liquid crystal polymer substrate (12) which holds the optical waveguide substrate (11) and has permittivity lower than that of the optical waveguide substrate (11). The optical waveguide substrate (11) and the liquid crystal polymer substrate (12) are bonded to each other by an adhesive layer (14).
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: April 7, 2015
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Masayuki Ichioka, Mitsuru Sakuma, Junichiro Ichikawa
  • Patent number: 8995814
    Abstract: A light guide has a transmission of greater than 90 percent, a refractive index greater than 1.4, and less than 10 haze percent. The light guide also includes an organosiloxane block copolymer having a weight average molecular weight of at least 20,000 g/mole. The organosiloxane block copolymer includes 40 to 90 mole percent disiloxy units of the formula [R12SiO2/2] arranged in linear blocks each having an average of from 10 to 400 disiloxy units [R12SiO2/2] per linear block, 10 to 60 mole percent trisiloxy units of the formula [R2SiO3/2] arranged in non-linear blocks each having a weight average molecular weight of at least 500 g/mol, and 0.5 to 25 mole percent silanol groups [?SiOH]. R1 is independently a C1 to C30 hydrocarbyl and R2 is independently a C1 to C20 hydrocarbyl. Moreover, at least 30% of the non-linear blocks are crosslinked with another non-linear block and aggregated in nano-domains.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 31, 2015
    Assignee: Dow Corning Corporation
    Inventors: David J. Deshazer, Steven Swier
  • Patent number: 8995802
    Abstract: An IR supercontinuum source for generating supercontinuum in the MIR or possibly LWIR spectral bands comprises a supercontinuum fiber formed from a heavy metal oxide host glass having low optical loss and high non-linearity over the spectral band that is stable, strong and chemically durable. The supercontinuum fiber is suitably a depressed inner clad fiber configured to support only single transverse spatial mode propagation of the pump signal and supercontinuum. The source suitably includes a tapered depressed inner clad fiber to couple the pump signal into the supercontinuum fiber. The source may be configured as an “all-fiber” source.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: March 31, 2015
    Assignee: NP Photonics, Inc.
    Inventors: Arturo Chavez-Pirson, Daniel Larry Rhonehouse, Dan T. Nguyen
  • Patent number: 8965162
    Abstract: Acoustically anti-guiding optical structures are provided. In an exemplary acoustically anti-guiding fiber, a suitable cladding size for ant guiding fibers occurs wherein the cladding size is determined such that the net material dampening in the cladding is large enough to dampen acoustic waves. In another embodiment, a cladding can be considered infinite if the round-trip time from a core to an outer cladding boundary (or interface) is greater than a coherence time of an acoustic wave.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: February 24, 2015
    Inventor: Peter Dragic
  • Patent number: 8965147
    Abstract: An optical fiber includes: a core including a photosensitive material disposed therein, the core having a first index of refraction; a depressed cladding surrounding the core and having a second index of refraction that is lower than the first index of refraction; and an outer cladding surrounding the depressed cladding and having a third index of refraction that is higher than the depressed cladding.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: February 24, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Daniel Homa, Brooks Childers
  • Patent number: 8923681
    Abstract: An optical fiber core having a primary layer and a secondary layer, which are laminated on a bare optical fiber. The primary layer is formed by curing an ultraviolet-curable resin composition containing a first silane coupling agent, which can be incorporated into a resin skeleton, and a second silane coupling agent, which cannot be incorporated into a resin skeleton. The first silane coupling agent contains a compound having a methoxy group, and the second silane coupling agent contains a compound having an ethoxy group.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: December 30, 2014
    Assignee: Fujikura Ltd.
    Inventors: Akira Namazue, Akira Murata, Mizuki Isaji
  • Patent number: 8920729
    Abstract: A sensor for sensing at least one biological target or chemical target is provided. The sensor includes a membrane includes a membrane material that supports generation and propagation of at least one waveguide mode, where the membrane material includes a plurality of voids having an average size <2 microns. The sensor also includes at least one receptor having structure for binding to the target within the plurality of voids, and an optical coupler for coupling light to the membrane sufficient to generate the waveguide mode in the membrane from photons incident on the optical coupler.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: December 30, 2014
    Assignee: Vanderbilt University
    Inventors: Guoguang Rong, Sharon M. Weiss, Raymond L. Mernaugh
  • Patent number: 8917969
    Abstract: A luminescence concentrator (LK) may concentrate both incident direct and diffuse light by way of frequency shift and total internal reflection. It differs fundamentally from geometric concentrators. With sufficient geometric expansion of the collector plate, nearly arbitrarily high concentration can be achieved in the LK. A luminescence disperser is an apparatus which holds both directional and nondirectional incident light captive in a transparent body by way of frequency shift and total internal reflection and emits it diffusely or directionally uniformly distributed across an area by way of luminescence emission. The object of the invention is a method for the technical implementation of the LK and luminescence disperser, using zeolite crystals having a nanotube structure, into which the luminescent dyes are embedded such that they have antenna properties. Using the resulting novel structures, problems can be solved which made the technical use of LK impossible or at least considerably limited it.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: December 23, 2014
    Assignees: Universität Zürich
    Inventors: Gion Calzaferri, Andreas Kunzmann, Dominik Brühwiler, Christophe Bauer
  • Patent number: 8909020
    Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: December 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
  • Patent number: 8849087
    Abstract: The present inventions relate to optical components which include quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles include a ligand attached to a surface thereof, the ligand being represented by the formula: X-Sp-Z, wherein: X represents a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, an other nitrogen containing group, a carboxylic acid group, a phosphonic or arsonic acid group, a phosphinic or arsinic acid group, a phosphate or arsenate group, a phosphine or arsine oxide group; Sp represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; and Z represents: (i) a reactive group capable of communicating specific chemical properties to the nanocrystal as well as provide specific chemical reactivity to the surface of the nanocrystal, and/or (ii) a group that is cyclic, halogenated, or polar a-protic.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: September 30, 2014
    Assignee: QD Vision, Inc.
    Inventors: Craig Breen, John R. Linton, Jonathan S. Steckel, Marshall Cox, Seth Coe-Sullivan, Mark Comerford
  • Patent number: 8842956
    Abstract: A non-kink, non-hockling optical cable comprising an optical fiber capable of propagating light along its longitudinal axis. A buffer layer made of a soft plastic material surrounds the silica core and cladding, and a supplemental layer surrounds the buffer layer. The supplemental layer consists essentially of a liquid crystal polymer (LCP) material to enhance the tensile strength of the optical fiber. Finally, an encasing polymer layer with a breaking strain greater than 30%, surrounds the supplemental layer, to increase the flexibility of the optical cable.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: September 23, 2014
    Assignee: Linden Photonics, Inc.
    Inventors: Stephen M. O'Riorden, Amaresh Mahapatra