Fiber Optics Patents (Class 358/901.1)
  • Patent number: 10013044
    Abstract: A power control system includes a power supply unit, first and second microcontrollers, a transmission line and first and second filters, for transmitting a power management bus (PMB) to a server. The power supply unit provides a power signal, the PMB and a carrier frequency. The first and second microcontrollers respectively perform modulation and demodulation to the PMB according to the carrier frequency, such that the transmission line simultaneously transmits the power signal and the PMB to the server.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: July 3, 2018
    Assignee: Wiwynn Corporation
    Inventors: Cheng-Kuang Hsieh, Hsien-Yu Wang
  • Patent number: 9588288
    Abstract: The present invention provides a backlight module and a liquid crystal display device using the backlight module. The backlight module includes a light collector, a plurality of first optical fibers connected to the light collector, a plurality of first optical fiber splitters connected to the first optical fibers, a plurality of second optic fibers connected to the first optical fiber splitters, and a light guide plate arranged at one side of the second optic fibers. Each of the first optical fiber splitters includes a first light inlet and a plurality of first light outlets. The first light inlets are respectively connected to the first optical fibers and the first light outlets are respectively connected to the second optic fibers. The backlight module uses optic fiber splitters to split received sun light for making dense and uniform distribution of sun light at a light incidence site of a light guide plate.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: March 7, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Dehua Li, Shihhsiang Chen, Liyi Chen
  • Patent number: 9322940
    Abstract: A detector module (50) for a positron emission tomography (PET) system (10) includes an optical transceiver (66) receiving an optical data stream from a PET processing system (48). The data stream includes a pulse train carrying a command to generate sync/reset pulses. The system (10) further includes synchronization circuitry (70) configured to simultaneously jitter clean the pulse train and one of: 1) count the pulses of the pulse train; and 2) monitor the pulse train for a missing pulse. The synchronization circuitry (70) is further configured to, in response to counting a predetermined number of pulses or detecting the missing pulse, extract a jitter clean pulse from the pulse train to generate a jitter clean sync/reset pulse. The system (10) further includes an internal clock (64) which receives the jitter clean sync/reset pulse.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: April 26, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Bjoern Weissler, Pierre Klaus Gebhardt
  • Patent number: 8755059
    Abstract: A portable multiuse projector is described. The device includes a fiber-optic projection system which allows the portable multiuse projector to have the capability to copy, scan, print and fax. A personal computer or laptop input allows for presentations, copy, scan, print and fax functions from the convenience of a laptop anywhere and anytime. Moreover, the multiuse projector of the invention is supplied with USB and other ports to accommodate tablet or electronic book presentations, external hard drive and/or mouse or input device usage.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 17, 2014
    Assignee: Taishita LLC
    Inventor: Eugene LeGrande
  • Patent number: 8215834
    Abstract: An optical fiber based polymer core sensor includes an optical fiber having a core and an end having a cured polymer core affixed to the core of the optical fiber. The cured polymer core extends outward from the end of the optical fiber and has a diameter approximately equal to the core of the optical fiber. Note the cured polymer core can be substantially cylindrical, tapered or geometrically shaped. The optical fiber based polymer core sensor can be used to measure a temperature, measure a strain, measure a distance, measure a refractive index, detect or measure an analyte, detect a toxin, detect a biological agent, monitor a chemical process, or a combination thereof.
    Type: Grant
    Filed: September 5, 2009
    Date of Patent: July 10, 2012
    Assignee: Board of Regents, The University of Texas System
    Inventors: Haiying Huang, Ayan Majumdar
  • Patent number: 7226958
    Abstract: The present invention relates to a method of improving the tensile, elongation, and/or modulus (overall toughness) of a radiation curable composition by reacting in a free multi-functional isocyanate prior to curing. Also, radiation-curable compositions are provided that include (i) a component represented by the following formula (a): A-X1-A??(a) wherein A represents a (meth)acrylate group; and X1 represents an aliphatic or aromatic group; and (ii) a urethane (meth)acrylate component comprising a (meth)acrylate group, said X1, and in addition a residue of a multifunctional isocyanate.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: June 5, 2007
    Assignee: DSM IP Assets B.V.
    Inventors: Wendell W Cattron, Xiaosong Wu
  • Patent number: 7050684
    Abstract: A radiation-curable composition having a reduced surface energy and including a reactive dye containing at least one radiation-curable substituent and at least one fluorine-containing substituent. The reactive dye may include any anthraquinone, methine, azo, azine, or xanthene dye adapted to contain at least one radiation-curable substituent and at least one fluorine-containing substituent. The radiation-curable substituent may include (meth)acrylate, styrene, vinyl ether, vinyl ester, N-substituted acrylamide, N-vinyl amide, maleate ester, and fumarate ester.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: May 23, 2006
    Assignee: Alcatel
    Inventor: Michael B. Purvis
  • Patent number: 6535271
    Abstract: An exposure apparatus comprises a light source section, which is constituted of a plurality of arrayed light source units, each of the light source units comprising multiple kinds of light emitting devices, which produce light beams having wavelengths falling within different wavelength ranges, and an optical system for combining the light beams, which have been radiated out from the multiple kinds of the light emitting devices, with one another to form a combined light beam, and converging the combined light beam onto one end of an optical fiber. An exposure head is located so as to stand facing a photosensitive surface of a photosensitive material capable of being conveyed. The other end of the optical fiber is connected to the exposure head. A driving mechanism moves the exposure head in a straight line along a direction, which is normal to the direction of conveyance of the photosensitive material.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: March 18, 2003
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Mamoru Ogasawara
  • Patent number: 6489399
    Abstract: Novel dye/polymer compositions are disclosed, which when used in connection with fiber optic devices, provide a uniform spectral response across a broadband wavelength region. The dye/polymer compositions contain an infrared absorbing dye having an absorption maximum from about 900 to about 1300 nm. One or more polar olefin copolymers containing monomers derived from polar olefins having an ester, benzene, or halogen substitutent attached, is/are chemically bonded to the dye. Optionally, a detached polar olefin copolymer may be blended with the dye-appended copolymer. Also disclosed is a broadband optical device comprising the novel dye/polymer compositions formed over an optical fiber. Improvements in the uniformity of spectral response and performance are observed across a wavelength band. Variable optical attenuators, switches, shutters, and couplers can be designed which incorporate the dye/polymer compositions. The invention is particularly useful in the 1500-1700 nm wavelength band.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: December 3, 2002
    Assignee: Molecular OptoElectronics Corp.
    Inventors: Kwok Pong Chan, David G. Gascoyne, Janet L. Krahn, Gregory A. Wagoner
  • Patent number: 6444756
    Abstract: Novel polymer compositions for controlling or correcting dispersion mismatch between the composition and a side-fiber polished optical fiber are disclosed. The polymer compositions contain an infrared absorbing dye having an absorption maximum from about 900 to about 1200 nm and and a polar olefin copolymer containing monomers which are formed from polar olefins having an ester, benzene, or halogen substitutent attached. A method for controlling the dispersion exhibited by the novel polymer compositions is also disclosed. The method includes forming the polymer composition over an exposed surface of an optical fiber. Dispersion is controlled by controlling the amount of dye present in the polymer composition. Also disclosed is an optical device from which improvements in the uniformity of spectral response and performance are observed across a wavelength band. The optical device includes the polymer composition formed over an optical fiber.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: September 3, 2002
    Assignee: Molecular OptoElectronics Corporation
    Inventors: Kwok Pong Chan, David G. Gascoyne, Gregory A. Wagoner
  • Patent number: 6369179
    Abstract: 1H,lH-perfluorocyclohexylmethyl 2-fluoroacrylate, and homopolymers thereof.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: April 9, 2002
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Nicholas A. Stacey, Alastair S. Dodds, Luke C. Williams
  • Patent number: 6333821
    Abstract: The invention relates to optical elements comprised of an optical isotropic completely aromatic polyester with a glass transition temperature Tg≧180° C.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: December 25, 2001
    Assignee: Alcatel
    Inventors: Hartmut Krüger, Waltraud Neumann, Andreas Bräuer, Peter Dannberg
  • Publication number: 20010053822
    Abstract: Novel polymer compositions for controlling or correcting dispersion mismatch between the composition and a side-fiber polished optical fiber are disclosed. The polymer compositions contain an infrared absorbing dye having an absorption maximum from about 900 to about 1200 nm and a polar olefin copolymer containing monomers which are formed from polar olefins having an ester, benzene, or halogen substitutent attached. A method for controlling the dispersion exhibited by the novel polymer compositions is also disclosed. The method includes forming the polymer composition over an exposed surface of an optical fiber. Dispersion is controlled by controlling the amount of dye present in the polymer composition. Also disclosed is an optical device from which improvements in the uniformity of spectral response and performance are observed across a wavelength band. The optical device includes the polymer composition formed over an optical fiber.
    Type: Application
    Filed: June 29, 2001
    Publication date: December 20, 2001
    Inventors: Kwok P. Chan, David G. Gascoyne, Gregory A. Wagoner
  • Patent number: 6303695
    Abstract: Novel polymer compositions for controlling or correcting dispersion mismatch between the composition and a side-fiber polished optical fiber are disclosed. The polymer compositions contain an infrared absorbing dye having an absorption maximum from about 900 to about 1200 nm and and a polar olefin copolymer containing monomers which are formed from polar olefins having an ester, benzene, or halogen substitutent attached. A method for controlling the dispersion exhibited by the novel polymer compositions is also disclosed. The method includes forming the polymer composition over an exposed surface of an optical fiber. Dispersion is controlled by controlling the amount of dye present in the polymer composition. Also disclosed is an optical device from which improvements in the uniformity of spectral response and performance are observed across a wavelength band. The optical device includes the polymer composition formed over an optical fiber.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: October 16, 2001
    Assignee: Molecular OptoElectronics Corporation
    Inventors: Kwok Pong Chan, David G. Gascoyne, Gregory A. Wagoner
  • Patent number: 6268435
    Abstract: Novel polymer compositions for controlling or correcting dispersion mismatch between the composition and a side-fiber polished optical fiber are disclosed. The polymer compositions contain an infrared absorbing dye having an absorption maximum from about 900 to about 1200 mn and and a polar olefin copolymer containing monomers which are formed from polar olefins having an ester, benzene, or halogen substituent attached. A method for controlling the dispersion exhibited by the novel polymer compositions is also disclosed. The method includes forming the polymer composition over an exposed surface of an optical fiber. Dispersion is controlled by controlling the amount of dye present in the polymer composition. Also disclosed is an optical device from which improvements in the uniformity of spectral response and performance are observed across a wavelength band. The optical device includes the polymer composition formed over an optical fiber.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: July 31, 2001
    Assignee: Molecular OptoElectronics Corporation
    Inventors: Kwok Pong Chan, David G. Gascoyne, Gregory A. Wagoner
  • Patent number: 6191224
    Abstract: Novel polymer compositions for controlling or correcting dispersion mismatch between the composition and a side-fiber polished optical fiber are disclosed. The polymer compositions contain an infrared absorbing dye having an absorption maximum from about 900 to about 1200 nm and and a polar olefin copolymer containing monomers which are formed from polar olefins having an ester, benzene, or halogen substitutent attached. A method for controlling the dispersion exhibited by the novel polymer compositions is also disclosed. The method includes forming the polymer composition over an exposed surface of an optical fiber. Dispersion is controlled by controlling the amount of dye present in the polymer composition. Also disclosed is an optical device from which improvements in the uniformity of spectral response and performance are observed across a wavelength band. The optical device includes the polymer composition formed over an optical fiber.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: February 20, 2001
    Assignee: Molecular OptoElectronics Corporation
    Inventors: Kwok Pong Chan, David G. Gascoyne, Gregory A. Wagoner