Miscellaneous Patents (Class 385/147)
  • Patent number: 7382962
    Abstract: Designs of fiber stretcher apparatus using one or more linear actuators to stretch fiber loops for various applications including variable optical delay lines and devices using such delay lines.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: June 3, 2008
    Assignee: General Photonics Corporation
    Inventor: Xiaotian Steve Yao
  • Patent number: 7379647
    Abstract: A method includes transmitting optical signals through a heterogeneous sequence of spans of an all-optical transmission line. Each span has an optical transmission fiber connected to an optical amplifier. Each amplifier launches the signals into a sequential remainder of the line. The transmitting includes launching the optical signals into the highest loss fibers with substantially equal average optical launch powers or operating the spans with the highest loss fibers to have substantially equal quality products. The average optical launch powers are substantially equal to the inverse of a sum of (1?Tj)?j/[?NL·?j] over the highest loss fibers. The parameters Tj, ?j, and ?j are the respectiveare, respectively, transmissivity, nonlinear optical coefficient, and loss coefficient of the fiber of the j-th span. The parameter ?NL is the line's cumulative nonlinear phase shift.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: May 27, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Paul Claisse, Rene'-Jean Essiambre, Wonsuck Lee
  • Patent number: 7379652
    Abstract: Techniques for detecting optical spectral properties of a target are described. The technique includes providing an optical carrier which has an optical frequency bandwidth which is narrow compared to the width of the narrowest spectral feature of the target to be determined. This optical carrier is then electro-optically modulated with an RF frequency chirp, creating an optical chirp probe beam with a frequency chirped optical spectrum having upper and lower frequency chirped sidebands that have amplitudes sufficient to be detected at a detector. The sidebands are frequency bands arranged symmetrically around the optical carrier frequency. The attributes of a sideband include a start frequency, bandwidth and chirp rate. A probe beam is generated with the sidebands and directed onto a target having a physical property with optical frequency dependence. An optical response signal resulting from an interaction between the probe beam and the target is detected.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: May 27, 2008
    Assignee: Montana State University
    Inventors: Zachary Cole, Randy R. Reibel, Krishna Mohan Rupavatharam, William R. Babbitt, Kristian D. Merkel, Tiejun Chang
  • Patent number: 7376314
    Abstract: A multiple aperture array, wide angle imaging system incorporates compound refractive optics modeled after the eyes of insects. The system channels light through the apertures of a convex spatial filter and a pair of lenslet arrays hot press molded on a positive meniscus form. The lenslets act as afocal Keplerian telescopes to superpose light from hundreds of adjacent channels to a common point on the convex surface of a fiber optic imaging taper. The superposed light from all the channels form a curved, high intensity image that is transformed by the taper into a flat format for readout by a mosaic detector array. The image is upright and distortion free with an infinite depth of field. Ghost images are blocked by a honeycomb louver baffle positioned between the lenslets and the imaging taper. The system is conformable to the geometry of any convex mounting surface, whether spherical, aspherical, or cylindrical.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: May 20, 2008
    Assignee: Spectral Imaging Laboratory
    Inventor: Francis Mark Reininger
  • Patent number: 7375890
    Abstract: A method of manufacturing optical identification elements that includes forming a diffraction grating in a fiber substrate along a longitudinal axis of the substrate. The grating includes a resultant refractive index variation. The method also includes cutting the substrate transversely to form a plurality of optical identification elements that have the grating therein along substantially the entire length of the elements. Each of the elements has substantially the same resultant refractive index variation.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: May 20, 2008
    Assignee: Cyvera Corporation
    Inventors: Martin A. Putnam, John Moon, Paul S. Szczepanek, Tuo Li, Anthony Rauseo, Joseph Traynor
  • Patent number: 7373059
    Abstract: Various embodiments of the present invention are directed to compact systems for generating polarization-entangled photons. In one embodiment of the present invention, a polarization entangled-photon state source comprises a single transmission layer configured for transmitting electromagnetic radiation. The transmission layer includes a beamsplitter and a down-conversion device, both of which are configured to convert a pump beam into first and second signal beams and first and second idler beams. The transmission layer also includes a mode converter configured to invert electric and magnetic field components of both the first signal beam and the first idler beam, and a combiner configured to receive the first and second signal beams and the first and second idler beams and output the first and second signal beams and the first and second idler beams in an entangled polarization states.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: May 13, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sean Spillane, Marco Florentino, Charles Santori, Raymond G. Beausoleil, Jr.
  • Patent number: 7373073
    Abstract: The present invention provides a straightforward and robust synthetic process for producing a chromatographic column with eluent-sensitive light diffracting properties based on an inherent photonic band structure and a chromatographic device using the chromatographic column. The present invention provides chromatographic devices employing a chromatographic column which in one embodiment is a photonic colloidal crystal which includes an assembly of colloidal microspheres assembled into a highly ordered array within a housing such as a tube with the highly ordered array being a photonic crystal along the length of the crystal, and a second embodiment which is an inverse construct of the first embodiment, where solid microspheres making up the photonic colloidal crystal chromatographic column are replaced with spherical voids or void spaces subsequent to infiltration of a material of selected refractive index.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: May 13, 2008
    Assignees: The Governing Council of the University of Toronto
    Inventors: Ulrich Kamp, Vladimir Kitaev, Georg von Freymann, Geoffrey Alan Ozin, Scott Andrew Mabury
  • Patent number: 7369742
    Abstract: The present invention provides a device and method to efficiently turn light from an optical fiber around a corner while avoiding the frustrated-TIR loss that would occur if the fiber were bent. The invention uses non-imaging optics which efficiently deal with beam divergence half-angles less than 90°. By recognizing that most light from a fiber optic source will have a divergence half-angle of less than 90 degrees, a practical solution is achieved using non-imaging optics.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: May 6, 2008
    Assignee: Nellcor Puritan Bennett Inc.
    Inventor: Michael E. Fein
  • Patent number: 7369736
    Abstract: Provided is a light tunnel including a guide member for guiding an incident light to proceed therein while being reflected by a side wall thereof to merge the incident light into a uniform light beam, and an optical path change portion provided at least one end portion of the guide member inclined at a predetermined angle with respect to an optical axis of an incident light to reflect the incident light and direct a path thereof.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: May 6, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong-dok Cha
  • Patent number: 7366394
    Abstract: In an optical microscope, a pair of convergence/collimation lenses (5, 6) are arranged in the common optical axis of a light beam directed toward a sample (15) being observed through an objective lens (14) and a light beam radiated or reflected from the sample to pass through the objective lens respectively. A means (7) varying the phase of the transmitting light beam is varied within a specified range is provided between these lenses so that the sample is irradiated while being focused at a depth corresponding to the phase at the wave front of the light beam entering the objective lens.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: April 29, 2008
    Assignee: Kansai Technology Licensing Organization Co., Ltd.
    Inventors: Tetsuro Takamatsu, Katsumasa Fujita
  • Patent number: 7366363
    Abstract: An electro-optic modulator is formed from all flexible materials, to form a flexible electro-optic modulator. The formation process uses a photoresist which selectively adheres to one material more than it adheres to another material. This allows selective liftoff, where only parts of the substrate are lifted off. For example, this allows silicon ends on the modulator, thereby facilitating pig tailing and also facilitates handling. Another aspect describes testing the bending radius.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: April 29, 2008
    Assignee: University of Southern California
    Inventors: William H. Steier, Hyun-Chae Song, Min-Cheol Oh, Seh-Won Ahn
  • Patent number: 7366395
    Abstract: The invention relates to a manufacturing method of a die for molding an optical element. The manufacturing method comprising: forming the first film layer of an amorphous alloy having a super-cooling liquid phase onto a master transfer surface of a master die for molding a molding transfer surface of the die; heating the first film layer more than a glass transition point of the amorphous alloy having the super-cooling liquid phase while a surface of the first film layer and a transferred surface of a base material of the die being faced and pressed; and peeling the first film layer from the master die and transferring the first film layer onto the base material of the die to form the molding transfer surface of the die.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: April 29, 2008
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Seiji Yuasa, Shigeru Hosoe
  • Publication number: 20080095511
    Abstract: A retro-reflect type light pipe, an illumination device including the same, and a projection display including the illumination device are provided. The retro-reflective type light pipe includes an incident portion through which light is incident, a guide portion which guides the incident light such that the incident light propagates internally therewithin while being reflected at inner walls thereof, and which thereby mixes the incident light thus providing uniform light. A retro-reflective portion, provided at one end of the guide portion, re-reflects the incident light toward the incident portion. The illumination device includes a light source, the retro-reflective type light pipe, and an optical path-changing member provided between the light source and the retro-reflective type light pipe, which changes the direction of the light emitted from the light source such that the light from the light source propagates toward the retro-reflective type light pipe.
    Type: Application
    Filed: June 21, 2007
    Publication date: April 24, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Young-chol Lee, Kirill Sokolov
  • Patent number: 7362943
    Abstract: An optical element is formed by co-extruding to have an arrangement of polymer scattering fibers within a polymer matrix. The scattering fibers lie substantially parallel to a first axis. The scattering fibers are arranged at positions across the cross-section of the polymer matrix to scatter light transversely incident on the optical element in a direction substantially orthogonal to the first axis. The positions of the scattering fibers across the cross-section of the optical element may be selected so as to form a two-dimensional photonic crystal structure for light transversely incident on the optical element.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: April 22, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Olester Benson, Jr., Robert L. Brott, Patrick R. Fleming, Catherine A. Leatherdale, Terence D. Neavin, Diane North
  • Patent number: 7359585
    Abstract: Plasmons on a waveguide may deliver energy to photocatalyze a reaction. The waveguide or other energy carrier may be configured to carry electromagnetic energy and generate plasmon energy at one or more locations proximate to the waveguide, where the plasmon energy may react chemically with a medium or interaction material.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: April 15, 2008
    Inventor: Roderick A. Hyde
  • Patent number: 7356240
    Abstract: The ultraviolet short-pulse laser light emitted from the ultraviolet short-pulse laser light source 1 is focused on and caused to irradiate a macromolecular crystal 8 contained in a sample container 6 via a shutter 2, intensity adjusting element 3, irradiation position control mechanism 4, and focusing optical system 5. The sample container 6 is carried on a stage 7, and can be moved in three dimensions along the directions of the x, y and z axes in an x-y-z orthogonal coordinate system with the direction of the optical axis being taken as the z axis; furthermore, the sample container 6 can be rotated about the z axis. Working of the macromolecular crystal is performed by means of ultraviolet short-pulse laser light that is focused on and caused to irradiate the surface of the macromolecular crystal 8. In this way, various types of working can be securely performed on macromolecular crystals with little damage and by means of a simple operation.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: April 8, 2008
    Assignees: Nikon Corporation
    Inventors: Hiroaki Adachi, Hiroshi Kitano
  • Publication number: 20080080832
    Abstract: Embodiments of the present invention generally relate to a electromechanical device that has an improved usable lifetime due to the presence of one or more channels that contain and deliver a lubricant material that can reduce the likelihood of stiction occurring between the various moving parts of the device. Embodiments of the present invention also generally include an enclosed device package, and a method of forming the enclosed device package, that has one or more lubricant containing and/or transporting channels that that deliver lubricant material to a device disposed within the enclosed device package. Each lubricant containing channel acts as a ready supply of “fresh” lubricant to prevent stiction from occurring between interacting components of the device disposed within the enclosed region of the device package. The ready supply of “fresh” lubricants may also be used to replenish damaged lubricants (worn-off, broken down, etc) at the contacting surfaces where stiction generally occurs.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 3, 2008
    Inventors: Dongmin CHEN, William Spencer WORLEY
  • Patent number: 7352951
    Abstract: The present invention concerns a method for displaying advertisements including the steps of providing at least one non-transparent cable for transmitting light in which an end of each non-transparent cable is received by a receiving structure and transmitting light selected from a plurality of colors along the non-transparent cables such that the light is emitted from the ends of the non-transparent cables received by the receiving structure. The emitted light forms a display in accordance with at least one of a pre-programmed design, and the display is an advertisement or a simulated floor covering. The non-transparent cable can be a fiber optic cable, and the method can further include the step of incorporating the receiving structure into an infrastructure. As an example, the infrastructure can be a travel way that supports at least one of vehicular traffic and pedestrian traffic.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: April 1, 2008
    Inventor: Bradley L. Gotfried
  • Patent number: 7352938
    Abstract: An apparatus for moving a fiber including a plurality of fiber optic connectors through a system for processing the plurality of fiber optic connectors. The apparatus can include a first drive mechanism for moving the fiber through the system, such as a cart and a conveyor. The apparatus can include a second drive mechanism for moving the plurality of fiber optic connectors through the system, such as a screw drive. The apparatus can also include a controller for coordinating movement of the first drive mechanism with the second drive mechanism.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: April 1, 2008
    Assignee: ADC Telecommunications, Inc.
    Inventor: Robert J. Bianchi
  • Patent number: 7349145
    Abstract: An optical deflection device includes a substrate; a plurality of regulating members including upper portions including stoppers; a fulcrum member serving as an electrode; a plate member; and a plurality of electrodes. The plurality of regulating members, the fulcrum member, and the plurality of electrodes are provided on the substrate, with the plate member approximately opposite to the plurality of electrodes and movable in a space formed by the substrate, the fulcrum member, and the stoppers. The plate member includes unfixed edge portions, a light reflecting region, and a conductive layer electrically connected to the fulcrum member. By fixing at least a part of the plurality of electrodes to predetermined potentials and changing a potential of the fulcrum member, the plate member is displaced around the fulcrum member by electrostatic attraction force, and a light incident in the light reflecting region in a direction is deflected and reflected in another direction.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: March 25, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Seiichi Katoh, Takeshi Nanjyo, Koichi Ohtaka
  • Patent number: 7349141
    Abstract: An interferometric modulator includes a post structure comprising an optical element. In a preferred embodiment, the optical element in the post structure is a reflective element, e.g., a mirror. In another embodiment, the optical element in the post structure is an etalon, e.g., a dark etalon. The optical element in the post structure may decrease the amount of light that would otherwise be retroreflected from the post structure. In various embodiments, the optical element in the post structure increases the brightness of the interferometric modulator by redirecting light into the interferometric cavity. For example, in certain embodiments, the optical element in the post structure increases the backlighting of the interferometric modulator.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: March 25, 2008
    Assignee: IDC, LLC
    Inventors: Ming-Hau Tung, Srinivasan Sethuraman
  • Patent number: 7349598
    Abstract: A surface plasmon resonance device of the present invention includes a transparent medium layer and a conductive layer, a periodic structure being present at the interface therebetween. Assuming that the wavelength of visible light incident on the conductive layer through the transparent medium layer is ? (nm), the periodicity of the periodic structure is (?/633)×100 nm to (?/633)×500 nm, and the amplitude of the periodic structure is (?/633)×5 nm to (?/633)×20 nm. For example, when ?=633 nm, the periodicity of the periodic structure is 100 nm to 500 nm, and the amplitude is 5 nm to 20 nm.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: March 25, 2008
    Assignee: Sony Corporation
    Inventor: Hajime Matsumura
  • Patent number: 7349606
    Abstract: A system of digitally controlling light output by producing separate control signals for different colors of light. The light is contained in an optical waveguide, either prior to shaping or after shaping. Each of the control signals is coupled to a digitally controlled device which controls the shape of the light output. The digital controlling device can be digital mirror devices, for example.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: March 25, 2008
    Assignee: Production Resource Group, L.L.C.
    Inventor: Jeremiah J. Harris
  • Patent number: 7349595
    Abstract: A bandpass filter, and associated method, are provided for an optical data signal, wherein the transmission curve of the bandpass filter has a passband at a mid-frequency for a particular bandwidth. The transmission curve has an attenuation range which covers the mid-frequency. This makes it possible to effectively increase the sensitivity of optical reception, particularly at a high data rate. When use is made of a number of bandpass filters having passbands which are arranged next to one another spectrally, such arrangement is highly suitable for a WDM signal.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: March 25, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventor: Harald Rohde
  • Patent number: 7346255
    Abstract: A tool for an optical connector including a clamping portion for clamping an optical fiber between clamping elements, the tool including: first and second insertion members, respectively including separately extractable first and second distal ends, wherein the first and second distal ends maintain the clamping elements in an open state by being wedged therebetween from outside the clamping portion, so that the optical fiber is movable between the clamping elements; first and second insertion member operating portions, respectively separately connected to proximal ends of the first and second insertion members, that individually extract the first and second distal ends of the first and second insertion members from between the clamping elements; and a stopper portion against which the optical connector is pressed when the first and second insertion members are extracted from between the clamping elements.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: March 18, 2008
    Assignee: Fujikura Ltd.
    Inventors: Takashi Yamaguchi, Kazuhiro Takizawa, Daigo Saito, Hiroshi Furukawa
  • Patent number: 7346256
    Abstract: An improved, reversibly terminable fiber stub connector assembly is provided that can be readily and positively terminated in the field using simple termination tools. This allows repositioning or replacement of fiber optic cable field fibers if termination is not acceptable in performance. The tool may be a hand-held tool, or used in conjunction with a connector support structure to provide simplified and expeditious field termination of fiber optic cables. The cam tool can include a throughbore that enables connection of a patchcord to the stub fiber of the connector during or shortly after termination without removal of the termination tool. Accordingly, field testing of the connection can be made at the site of termination.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: March 18, 2008
    Assignee: Panduit Corp.
    Inventors: Samuel M. Marrs, Jerry A. Wiltjer, Shaun P. Brouwer
  • Patent number: 7346261
    Abstract: There disclosed is an image display apparatus having a light source, a scanning member for deflecting a light from the light source to scan a predetermined surface with the light to form a two-dimensional image thereon, a first optical system for guiding a light deflected by the scanning member to the predetermined surface and a second optical system for guiding a light from the two-dimensional image formed onto the predetermined surface to an observer. There exists, in optical paths of the first optical system and the second optical system, a common optical element with a plurality of optical surfaces including refractive surfaces and reflective surfaces formed on a same medium and the first optical system and the second optical system share a part of optical surfaces of that optical element.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: March 18, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Yamamoto, Shuichi Kobayashi
  • Patent number: 7346254
    Abstract: A telecommunications assembly including a housing and a plurality of modules mounted within the housing. The modules includes a rear face in which is mounted at least one fiber optic connector. Within an interior of the housing are positioned at least one fiber optic adapters. Inserting the module through a front opening of the housing at a mounting location positions the connector of the module for insertion into and mating with the adapter of the housing. The adapters within the interior of the housing are integrally formed as part of a removable adapter assembly. A method of mounting a telecommunications module within a chassis. The modules include a connector mounting bulkhead which is moveable relative to the module to allow connector access.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: March 18, 2008
    Assignee: ADC Telecommunications, Inc.
    Inventors: Anne Kramer, Ponharith Nhep
  • Publication number: 20080063338
    Abstract: A cabinet tamper detection device is disclosed. The tamper detection device includes a first portion and a second portion. The first portion includes a housing and a first magnet movable relative to the housing between a first position and a second position. The second portion includes a second magnet. The first and the second magnets are configured such that the second magnet applies a magnetic force on the first magnet to keep the first magnet at the first position when the first and the second magnets are at a predetermined relative position. When at least one of the first and the second magnets is moved from the predetermined relative position, the first magnet moves from the first position to the second position to trigger a tamper warning.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 13, 2008
    Inventor: Wayne M. Kachmar
  • Patent number: 7343079
    Abstract: The invention relates to a method for determining the transmission behaviour of an optical waveguide with a step index profile, wherein the optical waveguide is composed of guide pieces, protruding into each other, so that the surfaces of said guide pieces comprise real and virtual surfaces, lying respectively outside and inside another guide piece. The transmission behaviour is determined by geometric ray tracing, wherein the points of intersection of a ray with the surfaces of the guide pieces are determined, which are thus defined analytically, in particular, by extrusion of cross sections along an axial trajectory. A real material transition can be determined by an iterative procedure.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: March 11, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Bierhoff
  • Patent number: 7343080
    Abstract: One embodiment provides a method of testing humidity, comprising: determining a property of a device which encloses a plurality of interferometric modulators; and determining a relative humidity value or a degree of the relative humidity inside the device based at least in part upon the determined property. In one embodiment, the property of the device includes one of the following: i) a weight of the device, ii) a color change of a desiccant enclosed in the device, iii) a resistance inside the device, iv) whether frost formed in an inside area of the device which is contacted by a cold finger device, v) whether a desiccant enclosed in the device, when water vapor is provided into the device, is working properly, and vi) combination of at lest two of i)-v).
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: March 11, 2008
    Assignee: IDC, LLC
    Inventors: Brian J. Gally, Lauren Palmateer, Manish Kothari, William J. Cummings
  • Patent number: 7340120
    Abstract: A method of fabricating an interconnect includes forming one or more holes in an anisotropic conductive film on a carrier substrate, filling at least one of the one or more holes with a material capable of transmitting an optical signal, and laminating the anisotropic conductive film on a packaging substrate. An electronic package includes a first substrate, a second substrate, and an interconnect located between the first substrate and the second substrate. The interconnect includes a conductive film for electrically coupling a first terminal formed on the first substrate to a second terminal formed on the second substrate, and one or more optically transmissive units embedded in the conductive film, wherein at least one of the one or more optically transmissive units provides an optical signal path between an optical element on the first substrate and an optical element on the second substrate.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: March 4, 2008
    Assignee: Intel Corporation
    Inventors: Jonathan McFarland, Kannan Raj
  • Patent number: 7340148
    Abstract: A method is provided for predicting an installed performance parameter of an optical fiber cable. The method includes obtaining a measurement indicative of a value of the performance parameter at a first moment in time. A measurement indicative of a value of the performance parameter at a second moment in time may then be obtained. A first correlation may then be determined between the measurement at the first moment in time and the measurement at the second moment in time. A value of the performance parameter at the second moment in time may then be estimated based upon the measurement at the first moment in time in combination with the first correlation, the first correlation being based upon observations of a manner in which the performance parameter varies over time for at least a second optical fiber.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 4, 2008
    Assignee: Verizon Business Global LLC
    Inventor: John A. Fee
  • Patent number: 7340187
    Abstract: In an optical signal monitoring method in wavelength multiplexing and an optical network, an area corresponding to a characteristic pattern of an eye pattern of an optical signal to be monitored, which characterizes a deterioration, is extracted from a database storing a map which associates a quality deterioration factor and deterioration amount of the optical signal with the characteristic pattern of the area of the eye pattern of the optical signal. The extracted pattern is collated with the map stored in the database to monitor the quality deterioration factor and deterioration amount of the optical signal, an occurrence time of a deterioration, duration of a deterioration, a deterioration occurrence cycle, and a deterioration duration cycle. An optical signal monitoring apparatus is also disclosed.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: March 4, 2008
    Assignee: NEC Corporation
    Inventor: Hitoshi Takeshita
  • Patent number: 7334945
    Abstract: A hub arrangement for mounting light pipe to receive light includes a light pipe hub for mounting at least one light pipe, with a plug-and-socket arrangement. The plug-and-socket arrangement includes (i) a socket in the light pipe hub for receiving a plug, and (ii) a plug for mounting a light pipe end that is to receive light. A fore end of the plug is receivable within the socket. The plug has a channel for receiving the light pipe through an aft end of the plug. The hub arrangement may also include, if desired, a rod hub for mounting at least one thermally isolating, light-collection rod for receiving light from a light source. The hub arrangement allows easy and rapid coupling of light pipe to an illumination source, using a “plug-and-socket” feature. The hub arrangement may incorporate several safety features to prevent premature light pipe failure.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: February 26, 2008
    Assignee: Energy Focus, Inc.
    Inventors: Dave Bina, Roger F. Buelow, II, Gregory P. Frankiewicz
  • Publication number: 20080044153
    Abstract: A periodic poling structure comprises a ferroelectric substrate including a plurality of tunnels, a plurality of first domains positioned in the ferroelectric substrate between the tunnels and a plurality of second domains interleaved between the first domains in the ferroelectric substrate. Each first domain has a first polarization direction, and each second domain has a second polarization direction different from the first polarization direction. The tunnels are disposed on a top surface and on a bottom surface of the ferroelectric substrate in an equal interval manner or in a variant interval manner. Particularly, the second polarization direction is opposite to the first polarization direction. The periodic poling structure further comprises a plurality of conductive blocks covering the entire base surfaces of the tunnels, or separated from the sidewalls of the tunnels by insulation gaps such that the conductive blocks cover only a portion of the base surfaces of the tunnels.
    Type: Application
    Filed: August 18, 2006
    Publication date: February 21, 2008
    Applicant: HC PHOTONICS CORP.
    Inventors: Joseph Lung-Chang Ho, Tze-Chia Lin, Ming-Hsien Chou
  • Patent number: 7333320
    Abstract: A fiber distribution terminal system includes a below ground vault, and a terminal enclosure within the vault. The system also includes a lift system in the vault, the lift system including a screw drive and a track system. Rotation of the screw drive lifts the terminal enclosure from a below ground to a lifted position, and the track system guides the terminal enclosure as the enclosure is lifted. The system also includes a tool such as a cordless drill to drive the screw drive. The screw drive can include a ball screw and a ball nut. The system can include a bracket to couple the terminal enclosure to the screw drive and the track system. The track system can include two sets of tracks, a first set of tracks that is fixed in the vault, and a second set of tracks that is coupled to the first set of tracks.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: February 19, 2008
    Assignee: ADC Telecommunications, Inc.
    Inventors: Craig M. Standish, Troy Land, Ajay Sharma
  • Patent number: 7333710
    Abstract: A display includes a casing, a terminal module, and a light source. The terminal module is mounted on an exterior of the casing, and includes a terminal unit. The light source is mounted on the casing and the terminal module, and serves to illuminate the terminal unit of the terminal module.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: February 19, 2008
    Assignee: DigiMedia Technology Co., Ltd.
    Inventors: Yea-Jye Hou, Yao-Tsung Ko, Wei-Hsin Hsieh, Yeuan-Ren Moh
  • Patent number: 7330633
    Abstract: A precision apparatus (10) includes a constraint joint (256) having a contact (258A) and a contact engager (258B). The contact (258A) includes a contact region (268) that is rounded, and the contact engager (258B) includes a first wall (270A), a second wall (270B), and a third wall (270C). Further, the walls (270A) (270B) (270C) are arranged so that the contact region (268) simultaneously contacts only one location on each wall (270A) (270B) (270C) to create a true three point contact that provides three degrees of constraint. One or more of the walls (270A), (270B), (270C) includes a contact pad (274) that engages the contact (258A). Each contact pad (274) can be made of a hard, relatively low friction material with a low friction surface (273).
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: February 12, 2008
    Assignee: Bookham Technology plc
    Inventor: David F Arnone
  • Patent number: 7330634
    Abstract: The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the sane; Z is Se, Te, or a mixture of Se+Te; and Y and Z are present in amounts (in atomic/element percent) in the range of Y=15-70% and Z=30-85%. The chalcogenide glasses of the invention have a 10,000 poise temperature of 400° C. and are resistant to crystallization when processed at high shear rates at their 10,000 poise temperature. The glasses can be used to make, among other items, molded telecommunication elements, lenses and infrared sensing devices.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: February 12, 2008
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Stephen Charles Currie, Beth Costello Monahan, Lung-Ming Wu, Everett William Coonan
  • Patent number: 7327926
    Abstract: A telecommunications optical fiber distribution system is disclosed. The system comprises a support structure with an upper end, a lower end, a front side, a rear side, and a longitudinal axis. An input cable carrying an input signal and an output cable carrying an output signal is received into the system through the lower end. A plurality of signal splitters located at the upper end of the support structure split the input signal into a plurality of secondary signals. The system includes a plurality of adapters arranged radially about the longitudinal axis along the front side of the support structure. The adapters connect the secondary signals to the output signal. A cable management structure having portions located both along the front side between the plurality of adapters and the splitters and adjacent the back side manage and direct cables going from the input opening to the splitters and from the splitters to the adapters.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: February 5, 2008
    Assignee: ADC Telecommunications, Inc.
    Inventors: Michael Barth, Soutsada Vongseng, Matthew D. Ferris
  • Patent number: 7327930
    Abstract: A modular light system for a spa where replacement of a light emitter, such as but not limited to a LED and/or a cable is accomplished without needing access an area around a tub in the spa. Furthermore, replacing the cable and light emitter can be accomplished individually. The system comprises a light emitter, a power source, a controller, and a plurality of cables. When the light emitter fails, it is disconnected from the cable and replaced with a working light emitter. When the cable fails it may be disconnected from the light emitter and replaced with a working cable.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: February 5, 2008
    Assignee: Nexxus Lighting, Inc.
    Inventors: Pinhas P. Koren, Stephen Faber, Cristoffer Kvist
  • Patent number: 7324733
    Abstract: The present invention relates to optical components for reversing and inverting images, and to methods of manufacturing them accurately, robustly and cost-effectively. The method includes optical contact bonding a first optical element and a second optical element and adhesively bonding the first optical element and the second optical element. Adhesively bonding might include forming a notch into the second optical element and depositing a bead of adhesive into the notch, such that the adhesive adheres to both the notch and the first optical element.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: January 29, 2008
    Assignee: Pacific Telescope Corporation
    Inventor: Dar Tson Shen
  • Patent number: 7324734
    Abstract: An arbitrary surface optical element, such as a mirror for use in a rear projection television, includes a non-optical portion and an optical portion. The non-optical portion circumscribes the optical portion and has a thickness greater than the optical portion. Accordingly, the two portions cool at approximately the same rate, thereby minimizing warpage from differential cooling.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: January 29, 2008
    Assignee: N-Lighten Technologies
    Inventors: William Robert Burnett, Kathleen Hannon Davies, Paul D. Frey, Qing Guo, Charles Chia-ming Chuang, David Daniel Poppell
  • Publication number: 20080019782
    Abstract: The tensile strength of the first fixing member is larger than the tensile strength of the second fixing member. When the attaching and detaching of the cutting tool is repeated, although the second fixing member having a smaller tensile strength gets deteriorated, it is sufficient to replace the second fixing member, and it is possible to prevent breakage of the first fixing member, and it is possible to reduce the frequency of replacing the vibration body. As the material for first fixing member, it is possible to use high-speed steel, cemented carbide, SCM steel (chrome molybdenum steel), etc. As the material for the second fixing member, it is possible to use cemented carbide, SCM steel, etc.
    Type: Application
    Filed: July 18, 2007
    Publication date: January 24, 2008
    Inventors: Toshiyuki Imai, Shigeru Hosoe
  • Publication number: 20080019659
    Abstract: A photonic fabric display wherein graphic patterns, color, luminescence intensity, and light self-amplification are controllable. Incorporated in the fabric display are a number of photonic fibers which contain a converter either coated on a surface of the photonic fibers or inside said photonic fibers and a light source, such as LEDs, is connected to the end of the photonic fibers by using an efficient coupler.
    Type: Application
    Filed: October 26, 2006
    Publication date: January 24, 2008
    Inventors: Xiaoming Tao, Xiaoyin Cheng, Jianming Yu, Lijie Liu, Wang-wah Wong, Wing-kwong Tam
  • Publication number: 20080019656
    Abstract: A device for shifting the imaging axis of a microscope across the endfaces of a multi-fiber connector for inspecting the fiber-optic endfaces through the microscope comprises a supporting body for attaching at one end to the optical tube of a microscope; a pendular arm rotatably mounted to another end of the supporting body; a fitting tip attached to another end of the pendular arm; a bevel wheel fastened to the supporting body; and a torsion spring for pushing the pendular arm against a slanted surface of the bevel wheel. The bevel wheel is adapted to swing the pendular arm relative to the supporting body so that the imaging axis of the microscope is moved relative to the fitting tip to selectively align the imaging axis between adjacent fiber-optic endfaces for inspection.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 24, 2008
    Applicant: LIGHTEL TECHNOLOGIES INC.
    Inventors: Ge Zhou, Shangyuan Huang
  • Patent number: 7321714
    Abstract: Nano-particle materials including nanometer-scaled particles with a variety of sizes, chemical compositions, and properties may be used to form functional and/or protective media (layers) on a variety of materials and items. Among the items that may be coated and/or protected by nano-particle materials are integrated circuits, printed circuit boards, micro-electro-mechanical systems (MEMS), photonics devices and packages, optical fibers, and displays, as well as various macroscopic structures, such as pipes (tubes), bridges, towers and other civil engineering structures, all kinds of marine vehicles and off-shore structures, aircraft and aerospace structures, cars, etc.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: January 22, 2008
    Assignee: ERS Company
    Inventors: Dov Ingman, Vladimir Ogenko, Ephraim Suhir, Andrew Glista
  • Publication number: 20080013912
    Abstract: An apparatus, comprising a slider. The slider includes a substrate with an air bearing surface and a trailing substrate side. The slider includes an optoelectronic heater and a magnetic head being mounted on the trailing substrate side. Thermal insulation is interposed between the optoelectronic heater and the magnetic head. The optoelectronic heater is thermally coupled to the trailing substrate side.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 17, 2008
    Applicant: Seagate Technology LLC
    Inventors: Alexander Mikhailovich Shukh, Alexande Vasilievich Demtchouk
  • Publication number: 20080011990
    Abstract: A method and system for installing fiber optic cable in a building is provided. The fiber optic cable includes a pre-installed ferrule configured to connect to an outlet frame at a destination location. Each fiber optic cable may further be stored in a fiber dispensing reel. A conduit may be installed between a source and destination location and used to direct a cable and attached ferrule to the destination location. A fiber blowing device may use pressurized air to convey the ferrule and cable through the conduit. The conduit may be attached to an optical distribution frame configured to store and organize the fiber optic cables and/or reels. A conduit may extend into and/or through the frame using a grommeted opening in the walls of the frame. The source end of a fiber optic cable may be attached to a service connection through a connection panel of the frame.
    Type: Application
    Filed: October 19, 2006
    Publication date: January 17, 2008
    Applicant: TENVERA, INC.
    Inventors: Mikael Kostet, Brent Ware, Wenxin Zheng, Tim Akers, Neal Zumovitch