Fiber Optics Patents (Class 358/901.1)
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Patent number: 10013044Abstract: 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: GrantFiled: March 25, 2016Date of Patent: July 3, 2018Assignee: Wiwynn CorporationInventors: Cheng-Kuang Hsieh, Hsien-Yu Wang
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Patent number: 9588288Abstract: 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: GrantFiled: December 4, 2012Date of Patent: March 7, 2017Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Dehua Li, Shihhsiang Chen, Liyi Chen
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Patent number: 9322940Abstract: 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: GrantFiled: February 25, 2013Date of Patent: April 26, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Bjoern Weissler, Pierre Klaus Gebhardt
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Patent number: 8755059Abstract: 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: GrantFiled: November 8, 2012Date of Patent: June 17, 2014Assignee: Taishita LLCInventor: Eugene LeGrande
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Patent number: 8215834Abstract: 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: GrantFiled: September 5, 2009Date of Patent: July 10, 2012Assignee: Board of Regents, The University of Texas SystemInventors: Haiying Huang, Ayan Majumdar
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Patent number: 7226958Abstract: 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: GrantFiled: January 11, 2002Date of Patent: June 5, 2007Assignee: DSM IP Assets B.V.Inventors: Wendell W Cattron, Xiaosong Wu
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Patent number: 7050684Abstract: 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: GrantFiled: December 10, 2004Date of Patent: May 23, 2006Assignee: AlcatelInventor: Michael B. Purvis
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Patent number: 6535271Abstract: 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: GrantFiled: March 23, 2000Date of Patent: March 18, 2003Assignee: Fuji Photo Optical Co., Ltd.Inventor: Mamoru Ogasawara
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Patent number: 6489399Abstract: 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: GrantFiled: July 31, 2000Date of Patent: December 3, 2002Assignee: Molecular OptoElectronics Corp.Inventors: Kwok Pong Chan, David G. Gascoyne, Janet L. Krahn, Gregory A. Wagoner
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Patent number: 6444756Abstract: 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: GrantFiled: June 29, 2001Date of Patent: September 3, 2002Assignee: Molecular OptoElectronics CorporationInventors: Kwok Pong Chan, David G. Gascoyne, Gregory A. Wagoner
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Patent number: 6369179Abstract: 1H,lH-perfluorocyclohexylmethyl 2-fluoroacrylate, and homopolymers thereof.Type: GrantFiled: November 4, 1999Date of Patent: April 9, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: Nicholas A. Stacey, Alastair S. Dodds, Luke C. Williams
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Patent number: 6333821Abstract: The invention relates to optical elements comprised of an optical isotropic completely aromatic polyester with a glass transition temperature Tg≧180° C.Type: GrantFiled: June 15, 2000Date of Patent: December 25, 2001Assignee: AlcatelInventors: Hartmut Krüger, Waltraud Neumann, Andreas Bräuer, Peter Dannberg
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Publication number: 20010053822Abstract: 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: ApplicationFiled: June 29, 2001Publication date: December 20, 2001Inventors: Kwok P. Chan, David G. Gascoyne, Gregory A. Wagoner
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Patent number: 6303695Abstract: 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: GrantFiled: October 19, 2000Date of Patent: October 16, 2001Assignee: Molecular OptoElectronics CorporationInventors: Kwok Pong Chan, David G. Gascoyne, Gregory A. Wagoner
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Patent number: 6268435Abstract: 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: GrantFiled: October 19, 2000Date of Patent: July 31, 2001Assignee: Molecular OptoElectronics CorporationInventors: Kwok Pong Chan, David G. Gascoyne, Gregory A. Wagoner
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Patent number: 6191224Abstract: 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: GrantFiled: August 25, 1998Date of Patent: February 20, 2001Assignee: Molecular OptoElectronics CorporationInventors: Kwok Pong Chan, David G. Gascoyne, Gregory A. Wagoner