Transition Between Geometric Shapes Patents (Class 385/121)
  • Patent number: 10820791
    Abstract: An illuminator apparatus and method for illuminating an object field imaged by a rectangular image sensor having a first aspect ratio is disclosed. The apparatus includes an optical fiber having a proximal end disposed to receive a plurality of input light beams, each light beam having differing spectral properties, the optical fiber being operable to transmit the light beams along the fiber to a distal end of the optical fiber. The apparatus also includes an integrating element disposed to receive the light beams from the distal end of the fiber and combine the light beams to produce a generally homogenous illumination beam at a rectangular output face of the integrating element. The apparatus further includes an illumination projector operable to project an image of the output face of the integrating element into the object field to produce a generally rectangular illuminated region of the object field substantially corresponding to the portion of the object field imaged by the rectangular image sensor.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: November 3, 2020
    Assignee: Titan Medical Inc.
    Inventors: Randal B. Chinnock, William L. Weber
  • Patent number: 10686482
    Abstract: A metal chassis for a mobile device is configured to transmit a signal of a wavelength. A first side of the chassis faces the inside of the mobile device and includes a first aperture that has a dimension that comprises a first subwavelength width of a slot in the chassis. A second side of the chassis faces free space and includes a second aperture that has a dimension that comprises a second subwavelength width of the slot in the chassis. A channel connects the first aperture and the second aperture. The slot has a length dimension and the channel may be centered along the length dimension. The channel is configured to support a transverse electromagnetic mode for propagation of the signal from the first aperture through the channel to the second aperture. As a part of a mobile device the chassis acts as a secondary radiator for the mobile device.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 16, 2020
    Assignee: Intel Corporation
    Inventors: Yaniv Michaeli, Menashe Soffer, Omer Asaf, Ana M. Yepes, Manish A. Hiranandani, Anand S. Konanur
  • Patent number: 9946014
    Abstract: An optical pedestal fiber is configured to be taperable to form a tapered fiber having a mode field diameter at the tapered end that differs from the mode field diameter at the untapered end in correspondence with the difference between the cladding diameter at the tapered end and the cladding diameter at the untapered end. A plurality of such pedestal fibers can be used to construct a tapered fiber bundle coupler that provides matching of both core pitch and mode field diameter between a plurality of input fibers and individual cores of a multicore fiber. Further, the tapered fiber bundle coupler can be constructed using a plurality of fibers, in which individual fibers are configured to have different effective refractive indices, thereby suppressing crosstalk therebetween.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: April 17, 2018
    Assignee: OFS FITEL, LLC
    Inventors: Kazi S. Abedin, Thierry F. Taunay, Man F. Yan, Benyuan Zhu
  • Patent number: 9835802
    Abstract: A method of manufacturing an optical cable includes providing a plurality of fibers supported by a support structure, wherein, positions of the plurality of fibers in a reference cross-section form N rows extending in a first direction and M rows extending in a second direction different from the first direction. The method includes separating fiber ends at the first cable end into N rows and connectorizing them with N connectors. The method also includes separating fiber ends at the second cable end into M rows and connectorizing them with M connectors.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: December 5, 2017
    Inventor: Lijie Qiao
  • Patent number: 8831396
    Abstract: A beam homogenizing apparatus includes at least one flexible optical fiber for receiving light, the flexible optical fiber including a homogenizing output portion having a tileable cross-section, the output portion for producing a substantially homogenized intensity profile for light emitted therefrom.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: September 9, 2014
    Assignee: nLIGHT Photonics Corporation
    Inventors: Kirk Price, Scott Lerner
  • Patent number: 8801253
    Abstract: Illumination devices include a light source including a substantially planar light-emitting surface and an optical rod or optical taper disposed proximate to the substantially planar light-emitting surface to optically couple the optical rod and the substantially planar light-emitting surface.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: August 12, 2014
    Assignee: Optim LLC
    Inventors: Robert J. Krupa, Thomas V. Root
  • Patent number: 8666212
    Abstract: An optical apparatus of a head mounted display includes a fused fiber bundle, an image source, and an image lens. The fused fiber bundle includes an array of fused optical fibers having an in-coupling surface located at a first end and an out-coupling surface physically facing an eye-ward direction and located at a second end. The fused fiber bundle is tapered such that the in-coupling surface has a larger surface area than the out-coupling surface to compress the light image. The image source is disposed at the first end of the fused fiber bundle and optically aligned with the in-coupling surface to launch the light image into the fused fiber bundle. The image lens is disposed at the second end and optically aligned with the out-coupling surface to focus the light image emitted from the second end towards an eye when the head mounted display is worn.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: March 4, 2014
    Assignee: Google Inc.
    Inventor: Babak Amirparviz
  • Patent number: 8540409
    Abstract: In at least one embodiment, the light guide (10) comprises a single-pieced light guide body (1). The light guide body (1) includes a transparent material and a light entrance segment (2) having a first cross-section (11) with a polygonal shape. Furthermore, the light guide body (1) includes a light output segment (4) having a second cross-section (22) with a rotund, round, circular, oval or elliptic shape. A transition segment (3) is arranged adjacent to and between the light entrance segment (2) and the light output segment (4). Along the transition segment (3), the first cross-section (11) in particular continuously changes to the second cross-section (22).
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: September 24, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Christopher Eichelberger
  • Patent number: 8452143
    Abstract: A high power fiber laser system has a combiner configured of a plurality of single mode (SM) fibers which are fused together so as to define an output end of the fiber combiner. The fused SM fibers radiate respective fiber outputs, which collectively define a multimode (MM) combiner output. The SM fibers each are configured with such an optimally small numerical apertures (NA) that the MM combiner output is characterized by a minimally possible beam quality factor (M2) for the plurality of SM fibers. To reduce the possibility of burning of the components of the fiber laser system with a multi-kilowatt combiner output, a coreless termination block is fused to the output end of the fiber combiner and configured so as to provide expansion of the combiner output without modifying the minimally possible M2 factor thereof.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: May 28, 2013
    Assignee: IPG Photonics Corporation
    Inventors: Oleg Shkurikhin, Dimitry Mochalov, Asya Zakharova
  • Patent number: 8320724
    Abstract: The present invention relates to an optical communication system or the like, which comprises a multicore fiber with a plurality of cores that are two-dimensionally arrayed in a cross-section thereof. In the optical communication system, an arrangement converter, provided between a multicore fiber and an Optical Line Terminal (OLT) having light emitting areas arrayed one-dimensionally, comprises first and second end faces, and a plurality of optical waveguides. The optical waveguides are disposed such that one of the end faces coincides with the first end face and the other end face coincides with the second end face. In particular, the optical waveguide end face array on the first end face and the optical waveguide end face array on the second face are different, contributing to an optical link between network resources of different types.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: November 27, 2012
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Eisuke Sasaoka
  • Patent number: 8275226
    Abstract: A multi-mode optical fiber delivers light from a radiation source to a multi-focal confocal microscope with reasonable efficiency. A core diameter of the multi-mode fiber is selected such that an etendue of light emitted from the fiber is not substantially greater than a total etendue of light passing through a plurality of pinholes in a pinhole array of the multi-focal confocal microscope. The core diameter may be selected taking into account a specific optical geometry of the multi-focal confocal microscope, including pinhole diameter and focal lengths of relevant optical elements. For coherent radiation sources, phase randomization may be included. A multi-mode fiber enables the use of a variety of radiation sources and wavelengths in a multi-focal confocal microscope, since the coupling of the radiation source to the multi-mode fiber is less sensitive to mechanical and temperature influences than coupling the radiation source to a single mode fiber.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: September 25, 2012
    Assignee: Spectral Applied Research Ltd.
    Inventor: Richard Berman
  • Patent number: 8160415
    Abstract: A high power fiber laser system has a combiner configured of a plurality of single mode (SM) fibers which are fused together so as to define an output end of the fiber combiner. The fused SM fibers radiate respective fiber outputs, which collectively define a multimode (MM) combiner output. The SM fibers each are configured with such an optimally small numerical apertures (NA) that the MM combiner output is characterized by a minimally possible beam quality factor (M2) for the plurality of SM fibers. To reduce the possibility of burning of the components of the fiber laser system with a multi-kilowatt combiner output, a coreless termination block is fused to the output end of the fiber combiner and configured so as to provide expansion of the combiner output without modifying the minimally possible M2 factor thereof.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: April 17, 2012
    Assignee: IPG Photonics Corporation
    Inventors: Oleg Shkurikhin, Dimitry Mochalov, Asya Zakharova
  • Publication number: 20110085154
    Abstract: Fiber optic scanner and method for transmitting and receiving optical signals and range imaging camera including fiber optic scanner. The fiber optic scanner includes a light guide array including individual light guides arranged such that a first end has first ends of the individual light guides arranged in an image plane of collimating optics and a second end has second ends of the individual light guides arranged in a circular manner. A central light guide includes a first end arranged at a center of the circularly arranged second ends of the individual light guides and a motor driven reflector arranged to guide light emerging from the circularly arranged ends of the individual light guides into the central light guide.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Applicant: EADS DEUTSCHLAND GMBH
    Inventor: Ulrich SCHWANKE
  • Patent number: 7881578
    Abstract: Techniques for ultra-high density connection are disclosed. In one embodiment, an ultra-high density connector includes a bundle of substantially parallel elongate cylindrical elements, where each cylindrical element is substantially in contact with at least one adjacent cylindrical element. Ends of the elongate cylindrical elements are disposed differentially with respect to each other to define a three-dimensional interdigitating mating surface. At least one of the elongate cylindrical elements has an electrically conductive contact positioned to tangentially engage a corresponding electrical contact of a mating connector.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: February 1, 2011
    Assignee: Raytheon Sarcos, LLC
    Inventors: Stephen C. Jacobsen, David P. Marceau, Shayne M. Zurn, David T. Markus
  • Patent number: 7810975
    Abstract: The invention concerns a light unit with at least one LED, which includes at least one light-emitting chip as light source, with at least one fiber-optic element optically connected after the light-emitting diode and widening in the light propagation direction, and with a secondary lens optically connected after the fiber-optic element, in which oppositely arranged surfaces bordering the fiber-optic element, which form a bottom surface and a cover surface in a longitudinal section intersecting these surfaces, have oppositely curved curve sections adjacent to the light entry surface, as well as such a fiber-optic element. A light unit with high light output requiring limited space is developed with the present invention.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: October 12, 2010
    Assignee: odelo GmbH
    Inventors: Stephanie Specht, Emil Stefanov
  • Patent number: 7798692
    Abstract: Illumination devices include a light source including a substantially planar light-emitting surface and an optical rod or optical taper disposed proximate to the substantially planar light-emitting surface to optically couple the optical rod and the substantially planar light-emitting surface.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: September 21, 2010
    Assignee: Optim, Inc.
    Inventors: Robert J. Krupa, Thomas V. Root
  • Patent number: 7783148
    Abstract: A fiber-optic apparatus for receiving emitted radiation from a diode laser having at least one diode laser bar with a multiplicity of emitters which are arranged in at least one row alongside one another in the direction of their longitudinal axis. The fiber-optic apparatus has at least one optical fiber bundle that is associated with the diode laser bar and into which the laser beam is injected. Each emitter has a multiplicity of associated optical fibers. The optical fibers are hot-fused to one another under pressure and without regulation on the input side in order to form at least one fiber wedge with an inlet surface. The emitters of the diode laser bar are directly associated with at least one inlet surface in order to completely receive the laser light emitted from the diode laser bar.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: August 24, 2010
    Assignee: Schott AG
    Inventors: Thomas Weingärtner, Matthias Ertl, Thomas Reichert
  • Patent number: 7742669
    Abstract: One or more single mode few-moded or multimode fibers are incorporated into a bundle to carry input to a fiber amplifier or output from a fiber amplifier or a fiber laser. The input is at the signal wavelength, which is the wavelength where amplification or lasing occurs. Each of the fibers in the bundle is cleaved individually or as a group and fiber ends are aligned in the same plane. The fiber amplifier or fiber laser may include a double clad fiber and the other fibers of the bundle couple light for cladding pumping. The device may also include a mode filter for controlling the output mode.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: June 22, 2010
    Assignee: IMRA America, Inc.
    Inventors: Liang Dong, Donald J. Harter
  • Patent number: 7679734
    Abstract: In a fiber optic block 10 formed by bundling and integrating a plurality of optical fibers 11 each composed of a core region 12 and a clad region 13, an at least partially curved input end face 14 composed of one end of each optical fiber and a measurement surface having a curved surface shape of a to-be-measured object are pressed against each other. Then, an optical image formed by bringing the input end face into contact with the measurement surface and output from an output end face 15 of the fiber optic block is used to inspect the curved surface shape of the to-be-measured object. This allows a curved surface shape inspection method capable of inspecting the shape of a curved surface easily, a fiber optic block, and a curved surface shape inspection apparatus to be achieved.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: March 16, 2010
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Katsutoshi Nonaka, Takeo Sugawara
  • Patent number: 7680377
    Abstract: Techniques for ultra-high density connection are disclosed. In one embodiment, an ultra-high density connector includes a bundle of substantially parallel elongate cylindrical elements, where each cylindrical element is substantially in contact with at least one adjacent cylindrical element. Ends of the elongate cylindrical elements are disposed differentially with respect to each other to define a three-dimensional interdigitating mating surface. At least one of the elongate cylindrical elements has an electrically conductive contact positioned to tangentially engage a corresponding electrical contact of a mating connector.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: March 16, 2010
    Assignee: Raytheon Sarcos, LLC
    Inventors: Stephen C. Jacobsen, David P. Marceau, Shayne M. Zurn, David T. Markus
  • Patent number: 7626696
    Abstract: A system and method to obtain a variable field of view (FOV) of a sample without requiring an increase in an imaging CCD array size. In a fiber array spectral translator (FAST) based chemical imaging system, the fibers in the fiber bundle may be organized in different 2D “zones”. Each zone may include a predetermined number of fibers. Each 2D zone of fibers at the signal input end is organized as a separate linear array (1D) at the spectrometer slit input end. Depending on the user-selected FOV, one or more zones of fibers may be selected for signal input (into the spectrometer) by a motorized mobile slit port or linear translating stage, which will sequentially scan output from each selected linear fiber array into the spectrometer slit. The user can switch from one FOV size to another, thereby activating the linear translating stage to gather signals from appropriate linear fiber arrays corresponding to fiber zones associated with the selected FOV.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: December 1, 2009
    Assignee: ChemImage Corporation
    Inventor: Jingyun Zhang
  • Patent number: 7611272
    Abstract: The invention concerns a light unit with at least one LED, including at least one light-emitting chip as light source, with primary optics that include at least one fiber-optic element, optically connected after the LED, and with secondary optics, optically connected after the fiber-optic element. For this purpose, the light unit includes a second LED with at least one light-emitting chip as light source. The primary optics includes a second fiber-optic element, optically connected after the second LED and optically connected before the secondary optics. The light outlet surfaces of the two fiber-optic elements are adjacent to each other at a partition. With the present invention, a light unit with high light output is developed, both for low beams and high beams, which requires limited space.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: November 3, 2009
    Assignee: odelo GmbH
    Inventors: Stephanie Specht, Andreas Leittretter
  • Publication number: 20090190892
    Abstract: A photonic connection includes a first fiber and a second fiber. The first fiber has a core with a first predetermined pattern defined on or in a facet thereof, and the second fiber has a core with a second predetermined pattern defined on or in a facet thereof. The second predetermined pattern is complementary to the first predetermined pattern such that the first fiber or the second fiber fits into another of the second fiber or the first fiber at a single orientation and position.
    Type: Application
    Filed: October 16, 2008
    Publication date: July 30, 2009
    Inventors: Theodore I. Kamins, Wei Wu, Shih-Yuan Wang, Philip J. Kuekes, Michael Tan
  • Publication number: 20090108052
    Abstract: A fiber optic device for enabling soldering is described. The fiber optic device includes an entry portion comprising an optical fiber bundle for receiving a single light beam wherein the optical fiber bundle splits the light beam into a plurality of separate portions, each of the separate portions for enabling soldering. The fiber optic device further includes an exit portion for emitting each of the plurality of separate portions of the light beam in a pattern to enable soldering at a plurality of locations simultaneously utilizing the single light beam.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventor: Xiangyang FENG
  • Patent number: 7509010
    Abstract: In an end surface closely arranged multicore optical fiber 200, at least two single-mode optical fibers 10 are, at one and the other ends of the individual single-mode optical fibers 10, closely arranged in parallel to each other and bound together, such that a center-center distance of adjacent single-mode optical fibers 10 is twice a core diameter of the single-mode optical fiber 10 or greater and 0.5 times a value obtained by subtracting the core diameter of the single-mode optical fiber from a core diameter of a multimode optical fiber to be connected or less, and that the remaining individual single-mode optical fibers 10 are individually independent from each other.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: March 24, 2009
    Assignees: National Institute of Advanced Industrial Science and Technology, Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Takashi Hiraga, Ichiro Ueno, Noritaka Yamamoto, Toshiko Mizokuro, Nobutaka Tanigaki, Norio Tanaka, Kuniaki Aoki, Masutaka Koyano, Kunio Ikuma
  • Patent number: 7483609
    Abstract: An image wavelength conversion device for converting an infrared light image into a visible light, a method of manufacturing the device, and an image conversion system using the device are provided. The image wavelength conversion device is formed by an optical waveguide array 3 in which one end and the other end of each of a multitude of quasi-phase-matching sum frequency generating optical waveguides are aligned in a two-dimensional plane. One plane of the optical waveguide array 3 forms an incident plane which includes respective waveguides as elements thereof, and the other plane of the optical waveguide array 3 forms an exit plane which includes waveguides corresponding to the waveguides of the incident plane as elements thereof. From an incident light (?1) and an excitation light (?2) incident to an arbitrary element of the incident plane, an output light (?3) having the relationship of (?1)?1+(?2)?1=(?3)?1 is generated in the corresponding waveguide element.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: January 27, 2009
    Assignee: Hamamatsu Foundation for Science and Technology Promotion
    Inventor: Makoto Minakata
  • Patent number: 7460755
    Abstract: A fiber optic apparatus formed by fusing together multiple optical fibers and stretching the fused optical fibers to form a tapered portion. The tapered portion is cleaved or cut and polished to form a facet at which an optical beam is received or transmitted.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: December 2, 2008
    Assignee: HRL Laboratories, LLC
    Inventors: Hans W. Bruesselbach, Monica Minden, Cris Jones, Dave Hammon
  • Patent number: 7447407
    Abstract: The present invention is related to assemblies of luminous ornaments having optical fiber cables arranged in parallel, each formed by luminous optical fibers sheathed with a transparent tube, with interlaced connection elements formed therebetween, thereby forming a luminous net when being expanded.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: November 4, 2008
    Inventor: Jean-Hway Lee
  • Patent number: 7409129
    Abstract: An optical fiber array module is provided. The optical fiber array module includes a light emitting device to emit light having a pre-set convergence angle through a side surface (having a window or opening) thereof; an optical fiber array including a plurality of optical fibers (each optical fiber being an optical transmission medium); and a concentrator having a first side surface, a second side surface facing the side surface of the light emitting device, and a through-hole extended from the first side surface to the second side surface, wherein the through-hole has a width gradually narrower in a direction from the first side surface to the second side surface, wherein an end portion of the optical fiber array is inserted into the through-hole, thereby enabling concentration of the end portion of the optical fiber array d.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: August 5, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Tae Jung, Hyun-Cheol Kim, Je-Oh Kim, Hyun-Cheual Choi, Hyun-Joo Moon
  • 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
  • Publication number: 20080080205
    Abstract: A backlight assembly is provided. The backlight assembly includes a light pipe assembly having a thickness of about 90 microns, a light source and a coupler that receives light from the light source and diffuses the received light from the light source into the first end of the light pipe assembly.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 3, 2008
    Applicant: Luminit LLC
    Inventors: Thomas Forrester, Engin Arik, Evgeni Poliakov
  • 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: 7333698
    Abstract: An optical scanning device including a bundle of optical fibers adapted for delivering optical energy beams therethrough, and an actuator coupled to the bundle of optical fibers adapted to bend the bundle of optical fibers in a scanning motion.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: February 19, 2008
    Assignee: Polyoptics Ltd
    Inventor: Henry M. Israel
  • Patent number: 7327920
    Abstract: One or more single mode few-moded or multimode fibers are incorporated into a bundle to carry input to a fiber amplifier or output from a fiber amplifier or a fiber laser. The input is at the signal wavelength, which is the wavelength where amplification or lasing occurs. Each of the fibers in the bundle is cleaved individually or as a group and fiber ends are aligned in the same plane. The fiber amplifier or fiber laser may include a double clad fiber and the other fibers of the bundle couple light for cladding pumping. The device may also include a mode filter for controlling the output mode.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: February 5, 2008
    Assignee: Imra America, Inc.
    Inventors: Liang Dong, Donald J. Harter
  • Patent number: 7311450
    Abstract: Disclosed is a color optical link using a transparently jacketed plastic optical fiber that optically transmits data and uses light, scattered and emitted to the outside, for the purpose of illumination, and a method for achieving the color optical link. The color optical link includes a first driver that receives digital or analog signals and a coloring signal in parallel and converts these signals into optical signals through a plurality of light sources. These light sources emit light of different wavelengths. A first POF coupler, connected at one end of the optical fiber, inputs the received optical signals into the optical fiber. A second POF coupler at the other end separates the transmitted optical signals into a plurality of optical signals and inputs these optical signals into a plurality of optical detectors having filters for separating the received signals into plural signals according to wavelength. A second driver converts the received optical signals into electrical signals.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: December 25, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mu Gyeom Kim, Jin Taek Hwang, Jin Sung Choi, Han Sol Cho
  • Patent number: 7280723
    Abstract: An illumination assembly includes a light-emitting element that emits light over a light-source numerical aperture and an elongated light-guiding element including opposed incident and emission ends between which ends light propagates by total internal reflection. The light-guiding element includes along a portion of its length a numerical-aperture alteration taper having opposed small and large ends exhibiting, respectively, a small-end numerical aperture and a large-end numerical aperture lower in magnitude than the small-end numerical aperture. The alteration taper is oriented such that the small end is more proximate the incident end than the large end.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: October 9, 2007
    Assignee: Schott Corporation
    Inventor: Kevin Tabor
  • Patent number: 7241629
    Abstract: Labels, methods of making labels and methods of using labels are disclosed. The labels can be manufactured using fiber drawing techniques or by shutter masking. The labels can be used for detecting the presence of an analyte in a sample and for detecting interactions of biomolecules.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: July 10, 2007
    Assignee: Corning Incorporated
    Inventors: Matthew J. Dejneka, Joydeep Lahiri, Uwe R. Muller, Cameron W. Tanner, Patrick D. Tepesch
  • Patent number: 7239787
    Abstract: A device for conversion of an optical radiation flux, the device having a plurality of channels for receiving and transmitting optical flux and the channels having input 6 and output 8 end faces. Radiation, such as light, may be transported with or without reflections from the interior walls of the channels, depending upon curvature or lack thereof. Radiation diverging from a point source can be focused by the device to form large or small images following the output of the device along a longitudinal axis thereof. The input and output faces of the device can be used in reverse fashion. Radiation passing through the device will continue along a directed path in accordance with axial extensions, or continuations, of the individual channel axis.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: July 3, 2007
    Inventor: Muradin Abubekirovich Kumakhov
  • Patent number: 7224876
    Abstract: In a communication system using a sheet light guide 100 which is formed by containing light-scattering particles in a sheet optical medium and propagates signal light incident from one end surface 100a to the other end surface 100a side while scattering the signal light by the particles, and using a plurality of optical fibers 21, 22, 23 and 24 or 31, 32, 33 and 34 coupled to the other end surface 100a in a state of being provided in parallel, each of the end surfaces 100a of the sheet light guide 100 is adapted to have an outer edge shape in which at least a part substantially coincides with an outer edge shape of the plurality of optical fibers 21 to 24 or 31 to 34.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 29, 2007
    Assignee: Fujifilm Corporation
    Inventors: Osamu Iwasaki, Seiichi Watanabe
  • Patent number: 7206483
    Abstract: A method of forming a plurality of optical waveguide bundles may include arranging a plurality of optical waveguides in a substantially coplanar configuration, constraining a distal portion of the plurality of optical waveguides with an initial distal constraint, and pulling the constrained plurality of optical waveguides to a subsequent length. The subsequent length comprises a first bundle length and a second bundle length. The method also includes clustering a middle portion of the plurality of optical waveguides, wherein the middle portion retains the substantially coplanar configuration, constraining the middle portion with a middle constraint, and constraining a proximal portion of the plurality of optical waveguides with a proximal constraint.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: April 17, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Henryk Birecki
  • Patent number: 7197218
    Abstract: A method of manufacturing a light-conductive pipe is described comprising the steps of: forming a light pipe mold having an elongated cavity with two optical end faces and an opening for injecting molten material into the cavity distant from either optical end face; providing molten material from a supply of molten material; injecting the molten material through the opening; and cooling and solidifying the molten material to form a light-conductive pipe having an input optical face and an output optical face connected by an elongated body of light-conductive material. Also described are injection molded light-pipes formed by the method, and integrated linear arrays of injection molded light-conductive pipes formed by the method.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: March 27, 2007
    Assignee: Eastman Kodak Company
    Inventors: Ronald S. Cok, John N. Border
  • Patent number: 7186011
    Abstract: A multiple point decorative light strip, which is particularly structured from a plurality of light emitting tubes to form a strip form, a surface of which generates multiple point shining light spots. The light strip includes a plurality of the light emitting tubes, which are juxtaposed and connected to form the strip form. A plurality of optical fibers are disposed within each of the light emitting tubes, A plurality of light spot generating grooves are defined in a staggered arrangement on a circumferential surface of each of the optical fibers. Reflected stimulated light from the plurality of light spot generating grooves generates multiple point light spots that enable a surface of the strip to form a magnificently shining decorative lighting effect.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: March 6, 2007
    Inventor: Jean-Hway Lee
  • Patent number: 7149393
    Abstract: An apparatus and method for forming a fiber optic faceplate by winding an optical fiber strand about a mandrel that is outfitted with pairs of input and output spacing guides for providing proper fiber-to-fiber spacing. Spacing is maintained using input and output edge spacers to form a ribbon structure having optical fiber segments that run from an input edge to an output edge. The fiber optic faceplate can then be fabricated by stacking the ribbon structures.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: December 12, 2006
    Assignee: Eastman Kodak Company
    Inventors: Roger S. Kerr, Ronald S. Cok, David Kessler
  • Patent number: 7120323
    Abstract: A method is described for reducing the effect of linear birefringence in an optical fiber, in particular a circular-cored single-mode fiber. The invention may also be directed to an optical fiber having a reduced linear birefringence. A length of the optical fiber may be subdivided into a plurality of sections and a twist having a predetermined sense of rotation and a twist angle may be introduced between the sections. Fibers of this type may find applications, for example, in fiber-optic current and magnetic field sensors.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: October 10, 2006
    Assignee: KVH Industries, Inc.
    Inventors: Richard Dyott, Sid Bennett
  • Patent number: 7031579
    Abstract: An optical system provides a higher resolution image, especially for use with a projection system, using a combiner formed of fiber optics each having an input end and an output end, with the fiber optics grouped together so that the combiner has one or more image input ends each configured to receive an image from an associated image source. The input images are combined to yield an output image at the other end of the combiner that is smaller in area than the sum of the input image areas, increasing resolution. According to an embodiment, the output image is also counter-distorted to compensate for the distortion of the image caused by the relay optics used in projection.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: April 18, 2006
    Assignee: L-3 Communications Corporation
    Inventors: Ashok Sisodia, Thomas St. John
  • Patent number: 7024082
    Abstract: An optical converter and method for making same is provided. In accordance with the method, the present invention provides an improved apparatus and methods for fabrication of an optical converter. In one aspect of the invention a method for forming an optical converter is provided. In accordance with this method at least two light guide ribbon structures are provided, with each light guide ribbon structure formed by the steps of roll molding a substrate having a pattern of channels with each channel extending from an input edge to an output edge of said substrate and forming light guides extending along each of the channels from the input edge to the output edge. The at least two light guide ribbon structures are assembled in a stacked arrangement.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: April 4, 2006
    Assignee: Eastman Kodak Company
    Inventors: Roger S. Kerr, Ronald S. Cok, David Kessler, Cheryl J. Kaminsky, Robert P. Bourdelais
  • Patent number: 7006741
    Abstract: A broad-spectrum, high spatial and time resolution contact-field optical microscope comprises a fiber optical taper, a vacuum chamber, a photocathode, a magnetic lens photoelectron image enlarger, a micro-channel plate image intensifier, a phosphor screen and a CCD. Sample is placed directly in contact with a smaller sampling face of the optical taper. Light which is emitted, reflected or transmitted by the sample is launched into each of the fiber core ends on the sampling face and conveyed by the optical fibers to a larger imaging face of the optical taper, thereby presenting an enlarged image at the imaging face. The image is converted into a photoelectron image by photocathode which is deposited on the surface of the imaging face. The photoelectron image is further enlarged by magnetic lenses and intensified by micro-channel plate. The enlarged and enhanced electron image is displayed on phosphor screen and coupled through faceplate to CCD.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: February 28, 2006
    Inventor: Bi Yu
  • Patent number: 6847774
    Abstract: A three dimensional optical circuit featuring an optical manifold for organizing, guiding and protecting individual optical fibers is shown. One aspect of the present invention is a three dimensional manifold which may be constructed using a rapid prototyping process such as, but not limited to, stereolithography (“SLA”), fused deposition modeling (“FDM”), selective laser sintering (“SLS”), and the like. The manifold has a number of input openings in a first ordered arrangement at one end connected by passageways to a number of output openings in a second ordered arrangement at the opposite end. A plurality of optical fibers may be directed through the passageways of the manifold to produce a three dimensional optical circuit such as a shuffle. Moreover, the optical manifold may be used in conjunction with a number of connections or terminations to form a various optical modules. These modules may be configured for rack mounting within enclosures for electrical components.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: January 25, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Richard L. Simmons, Curtis L. Shoemaker
  • Patent number: 6832032
    Abstract: A three dimensional optical circuit featuring an optical manifold for organizing, guiding and protecting individual optical fibers is shown. One aspect of the present invention is a three dimensional manifold which may be constructed using a rapid prototyping process such as, but not limited to, stereolithography (“SLA”), fused deposition modeling (“FDM”), selective laser sintering (“SLS”), and the like. The manifold has a number of input openings in a first ordered arrangement at one end connected by passageways to a number of output openings in a second ordered arrangement at the opposite end. A plurality of optical fibers may be directed through the passageways of the manifold to produce a three dimensional optical circuit such as a shuffle. Moreover, the optical manifold may be used in conjunction with a number of connections or terminations to form a various optical modules.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: December 14, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Richard L. Simmons, Curtis L. Shoemaker, Kenneth L. Kornele, Harry A. Loder, Edward B. Lurie
  • Patent number: 6827493
    Abstract: The invention is a bearing unit and bearing system for supporting a large rotatable element, such as a mooring turret. The bearing unit includes a hydrostatic suspension system which enables the bearing unit to accommodate fabrication tolerances and also enables the bearing unit to conform to relative movements between the ship and the turret, thereby providing a compliant bearing system. The system includes multiple bearing units of the invention which serve as thrust and/or radial bearings for supporting the turret. By manifolding a plurality of bearing units together in a fluidly-isolated group, the pressure applied to the bearing units in that group is self-equalizing so that all the bearing units act in unison to equally support the load, while also allowing some degree of self-alignment and tilting of the load. As a result, the bearing system emulates a self-aligning bearing system and is able to compensate for axial and angular misalignment.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: December 7, 2004
    Assignee: Prosafe Production PTE LTD
    Inventor: Alan Gregory Hooper