Spherical Patents (Class 385/35)
  • Patent number: 10345546
    Abstract: A cable management structure (100, 200, 300) for an optical fiber distribution rack (10) is disclosed. In one aspect, the cable management structure (100) supports cables extending from an optical fiber distribution element (50) supported by the rack (10). In one embodiment, a plurality of first cable support guides (102a) are vertically aligned along a first plane (190) while a plurality of second cable support guides (102b) are vertically aligned along a second plane (192). As presented, the first cable support guides (102a) are offset from the second cable support guides (102b) such that the first plane (190) is horizontally recessed from the second plane (192). In one embodiment a side channel frame (130) is provided to support the cable support guides (102). In another embodiment, the optical fiber distribution element (50) is provided with linearly spaced mounting arrangements (60) configured for engagement with cable support guides (202, 302).
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: July 9, 2019
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Johan Geens, Pieter Vermeulen, Eric Marcel M Keustermans, Lodewijk Van Noten
  • Patent number: 10330530
    Abstract: A reference light source device for calibration of a spectral radiance meter includes an integrating sphere having a radiance reference plane, which is an opening; and a plurality of first optical ports, which are formed apart from each other in an outer wall of the integrating sphere to allow light rays with equivalent wavelength characteristics to enter an interior of the integrating sphere.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: June 25, 2019
    Assignee: Otsuka Electronics Co., Ltd.
    Inventors: Hisashi Shiraiwa, Hiroyuki Sano
  • Patent number: 10234676
    Abstract: Some devices comprise a first light-guiding component, a second light-guiding component, a lens, an optical-correction component that has a reflecting surface that faces the lens, and a sheath, which causes astigmatism. The reflecting surface has an optical power on a first axis of two orthogonal axes, the optical power on the first axis compensates for the astigmatism, and the reflecting surface has a negligible optical power on a second axis of the two orthogonal axes. Also, the reflecting surface is configured to reflect light from the lens and redirect the reflected light through the sheath.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: March 19, 2019
    Assignee: Canon U.S.A., Inc.
    Inventor: Badr Elmaanaoui
  • Patent number: 10215923
    Abstract: A tunable, all-optical, coupling method for a high-Q silica microsphere and an optical waveguide is disclosed. By means of a novel optical nanopositioning method, induced thermal expansion of an asymmetric microsphere stem for laser powers up to 211 mW is observed and used to fine tune the microsphere-waveguide coupling. Microcavity displacements ranging from (0.61±0.13)-(3.49±0.13) ?m and nanometer scale sensitivities varying from (2.81±0.08)-(17.08±0.76) nm/mW are obtained. Additionally, an apparent linear dependency of coupling distance on stem laser heating is achieved. Using these methods, coupling can be altered such that the differing and customizable coupling regimes can be achieved.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: February 26, 2019
    Assignee: Okinawa Institute of Science and Technology
    Inventors: Rafino Miguel James Murphy, Fuchuan Lei, Jonathan Ward, Sile Nic Chormaic, Yong Yang
  • Patent number: 10191232
    Abstract: Disclosed is an optical module including an optical transmitter which is configured to output a first optical signal, an optical receiver which is configured to receive a second optical signal, a holder which is configured to include an optical fiber on which the first optical signal is incident and from which the second optical signal is emitted. The optical module further includes a first optical filter disposed between the optical transmitter and the holder to transmit the first optical signal and reflect the second optical signal, a first parallel light lens disposed between the first optical filter and the optical transmitter, and a second parallel light lens disposed between the first optical filter and the holder.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 29, 2019
    Assignee: OE SOLUTIONS CO., LTD.
    Inventors: Mi Hee Hwang, Hyun Chang Shin, Eun Kyo Jung
  • Patent number: 10151882
    Abstract: An optical beam expanding module that has a housing, a ferrule mounted in the housing, a cable extending into the housing, an optical fiber of the cable being received in an inner bore of the ferrule; and an optical lens mounted in the housing at a front end surface of the ferrule for expanding the diameter of a light beam output from the optical fiber. The optical beam expanding module is adapted to be assembled as a single component in any one of assembly channels in mounting bodies of different connectors. There is provided a standardized optical beam expanding module being adapted to be applied to different beam expanding connectors.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: December 11, 2018
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Zhiyun Zhong, Zhigang Song, Haibo Zhang, Jiahui Chen, Jiangbo Qin
  • Patent number: 9887773
    Abstract: A wavelength division multiplexing (WDM) transistor-outline (TO)-can assembly is provided that is capable of transmitting optical data signals having multiple wavelengths. The WDM TO-can assembly can be packaged in a relatively small package without requiring a large amount of plant retooling or capital investment, and that can be made available in the market relatively quickly. A plurality of the WDM TO-can assemblies can be incorporated into a small form factor or C form factor pluggable-type optical communications module to achieve high data rates.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: February 6, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Kou-Wei Wang, Ayman Kanan, Chih-Chi Lin
  • Patent number: 9857543
    Abstract: A bidirectional optoelectronic sub-assembly. The bidirectional optoelectronic sub-assembly includes an assembly body. The assembly body is configured to interface a light source, a photodetector, an optical waveguide, coupling optics and a beam splitter in optical alignment. The assembly body includes a light source port configured to accommodate the light source, an optical port configured to interface with an optical connector of the optical waveguide, a beam splitter slot configured to accommodate the beam splitter on a first optical path between the light source and the optical waveguide, and on a second optical path between the optical waveguide and the photodetector, and a faraday cage cavity configured to accommodate the photodetector.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: January 2, 2018
    Assignee: LumaSense Technologies Holdings, Inc.
    Inventors: Juncheng Xu, James Steven Chick, Terry M. Stapleton
  • Patent number: 9837782
    Abstract: A light incidence plane of the core 15 includes a plurality of planes 15a to 15c unparalleled with each other to which a light beam emitted from at least one laser element 21 is entered. When seen on a cross section taken along the longer direction of an optical fiber 10, light beams entered to a core 15 from the inclined planes 15b and 15c inclined to an axis CA of the optical fiber 10 in the plurality of the planes 15a to 15c are propagated from a region surrounded by a line and the inclined planes 15b and 15c forming an acute angle, the line being passed through the incident points of the light beams entered to the inclined planes 15b and 15c and parallel with an axis CA.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: December 5, 2017
    Assignee: FUJIKURA LTD.
    Inventor: Shinichi Sakamoto
  • Patent number: 9791632
    Abstract: There is provided an optical assembly (100) comprising an optical fiber arrangement (220, 230) and a lens arrangement (120). The lens arrangement (120) is spatially disposed relative to the fiber arrangement (220, 230) so as to be capable of providing an axial substantially collimated beam of radiation in response to receiving radiation from the optical fiber arrangement (220, 230) and capable of providing a focused beam of radiation to the optical fiber arrangement (220, 330) in response to receiving substantially collimated radiation to the lens arrangement (120). The assembly (100) further comprises a configuration of elements (110, 130, 200, 260) for spatially disposing the optical fiber arrangement (220, 230) relative to the lens arrangement (120).
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: October 17, 2017
    Assignee: Gigacom Interconnect AB
    Inventor: Claes Jacobsson
  • Patent number: 9470857
    Abstract: An optical module providing laser diodes (LD) and monitor PDs is disclosed. The LDs and monitor PDs are mounted on a module substrate that also mounts a resin body. The resin body includes a mirror surface which causes a total inner reflection for the optical beams coming from the LDs toward the inner fibers set in one side of the resin body. The mirror surface further provides a blip to refract portions of the optical beams toward the monitor PDs.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: October 18, 2016
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Jignesh Shah
  • Patent number: 9455786
    Abstract: An optical transceiver includes a positioning element, a fiber connecting segment, a base and a housing. The positioning element has a first positioning part. The fiber connecting segment tightly fits to the positioning element. The housing supports at least one optical transceiving element and is connected to the positioning element. The base has a second positioning part and is configured for supporting the positioning element and the fiber connecting segment. The first positioning part and the second positioning part define the position of the fiber connecting segment.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: September 27, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yu-Hsien Liao, Ming-Yi Huang, Te-Hsuan Yang
  • Patent number: 9429852
    Abstract: A microlens exposure system includes a microlenses array and a mask fixed in place a predetermined space apart, wherein the gap between the microlens array and an exposure substrate can easily be adjusted with high precision to an aligned focal point position of the microlenses. Laser light for exposure is irradiated onto a resist film by microlenses of a microlens array. Light from a microscope passes through a hole in a Cr film of a mask, and the light is transmitted through a microlens and radiated onto the resist film. Whether or not the light transmitted through the microlens has an aligned focal point on the resist film is observed through the microscope, whereby the aligned focal point of exposure light made to converge by the microlenses on the resist film can be distinguished.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: August 30, 2016
    Assignee: V TECHNOLOGY CO., LTD.
    Inventor: Michinobu Mizumura
  • Patent number: 9341788
    Abstract: An optical module includes a light emitting element, an optical fiber, a wavelength separating filter that is arranged at a predetermined angle with respect to a longitudinal direction of the optical fiber on a plane including the longitudinal direction of the optical fiber, and a lens for focusing light emitted from the light emitting element on the optical fiber via the wavelength separating filter. The light emitting element is arranged while being offset in a direction perpendicular to a central axis of the lens on a plane where the wavelength separating filter has the predetermined angle with respect to the central axis of the lens.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: May 17, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Nobuo Ohata, Atsushi Sugitatsu
  • Patent number: 9316793
    Abstract: An optical fiber assembly and a method of assembly thereof. The optical fiber assembly includes a support plate defining an array of support plate through holes, and an alignment template plate defining an array of alignment template plate through holes. At least one support plate through hole or alignment template plate through hole may be flared. At least one support plate through hole or alignment template plate through hole may include a compliant film.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: April 19, 2016
    Assignee: National Center for Advanced Packaging Co., Ltd.
    Inventors: Daniel Guidotti, Wenqi Zhang, Haiyun Xue
  • Patent number: 9279944
    Abstract: A communication connector includes a housing having a panel flange configured to abut against a rear of a panel and a mating end configured to be positioned forward of the panel. The housing has panel nut threads and a panel nut is threadably coupled thereto. The panel nut has a tether extending therefrom with a first tether loop secured to the panel nut and a second tether loop at a second end. A protective cap is removably coupled to the mating end of the housing. The protective cap has a lanyard extending therefrom having a first lanyard loop removably coupled to the second tether loop. When the protective cap is coupled to the mating end, access to the at least one conductor is restricted, and when the protective cap is removed from the mating end, access to the at least one conductor is allowed.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: March 8, 2016
    Assignee: TYCO ELECTRONICS CORPORATION
    Inventors: Stephen James Miller, Daniel Erlin Wertman
  • Patent number: 9250394
    Abstract: A connector for ribbon optical fiber comprises a plug (1) and a socket (2). The plug (1) movably connects with the socket (2) through buttons (106) which are set on the both sides of the front end of the plug, and an alignment core (12) which allows a ribbon optical fiber movably aligning in the inside movement is also set on the front end of the plug (1). In the connector for ribbon optical fiber of present invention, the plug (1) movably connects with the socket (2) through buttons (106), therefore repeated plugging and pulling can be achieved, and the optical fiber movably aligns inside the alignment core with the advantages of simple structure and good effect of alignment.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: February 2, 2016
    Assignee: SUNSEA Telecommunications Co., Ltd.
    Inventors: Qiyue Wang, Zhen Zhou
  • Patent number: 9239536
    Abstract: An image forming apparatus that is capable of simplifying controls for light sources. A polygon mirror with four reflective surfaces deflects light beams emitted from first and second light sources. A housing in which the light sources and the polygon mirror are arranged is configured so that optical paths of the light beams toward the polygon mirror are parallel to a virtual plane containing a rotating axis of the polygon mirror, and so that the light beams are incident on adjoining reflective surfaces of the polygon mirror. First and second driver ICs drive the first and second light sources in one of operation modes. A control unit outputs the same operation mode signal to the first and second driver ICs at the same timing so that the first and second light sources operate in the same operation mode.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: January 19, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Satoru Takezawa
  • Patent number: 9033325
    Abstract: An optical fiber fusion splicer that heats and fusion-splices optical fibers to each other, the optical fiber fusion splicer includes: a coating clamp installation base; a coating clamp that is attached to the coating clamp installation base and has a coating clamp lid that is openable and closable; and a first power source for advancing the coating clamp installation base and opening the coating clamp lid. An operation of opening the coating clamp lid is performed using the first power source after the fusion splicing is completed.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 19, 2015
    Assignee: FUJIKURA LTD.
    Inventor: Yoshinori Iwashita
  • Patent number: 9031364
    Abstract: The present invention provides a fiber optic jack for routing optical signals. In another aspect, the present invention provides a fiber optic connector with accurate alignment that may be used with, among other things, the fiber optic jack.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 12, 2015
    Assignee: Winchester Electronics Corporation
    Inventor: Jerome C. Farnan
  • Publication number: 20150125114
    Abstract: A method including the steps of providing a light-diffusing optical fiber (12a) having a glass core (20), a cladding (40) surrounding the core (20), and a plurality of nano-sized structures in the form of voids (32) situated within said core (20) or at a core-cladding boundary; cleaving the light-diffusing fiber (12a), thereby forming a cleaved end face (66); and applying energy to one or more of 1) the cleaved end face (66) and 2) the light-diffusing fiber (12b) along a portion of the length thereof adjacent the cleaved end face (66), the amount of energy being sufficient to collapse and seal the voids (32) exposed at the cleaved end face (66), leaving a sealed cleaved end face (68). A lens may then be attached to the sealed cleaved end face (68), or the sealed cleaved end face (68) may be softened sufficiently to induce formation of a lensing surface such as a convex lensing surface (60) on the sealed end face (68).
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventor: Michael Lucien Genier
  • Publication number: 20150125115
    Abstract: A method including the steps of providing a light-diffusing optical fiber (12a) having a glass core (20), a cladding (40) surrounding the core (20), and a plurality of nano-sized structures in the form of voids (32) situated within said core (20) or at a core-cladding boundary; cleaving the light-diffusing fiber (12a), thereby forming a cleaved end face (66); and applying energy to one or more of 1) the cleaved end face (66) and 2) the light-diffusing fiber (12b) along a portion of the length thereof adjacent the cleaved end face (66), the amount of energy being sufficient to collapse and seal the voids (32) exposed at the cleaved end face (66), leaving a sealed cleaved end face (68). A lens may then be attached to the sealed cleaved end face (68), or the sealed cleaved end face (68) may be softened sufficiently to induce formation of a lensing surface such as a convex lensing surface (60) on the sealed end face (68).
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventor: Michael Lucien Genier
  • Publication number: 20150125113
    Abstract: A solar collector which concentrates sunlight by a matrix of solar luminescence concentrators that are made up of fiber optic material which collect and concentrate light assembly into fiber optic cables and which guide the light to a desired location where it can be used for lighting or photo voltaic conversion into electricity.
    Type: Application
    Filed: November 2, 2013
    Publication date: May 7, 2015
    Inventors: Jerome Schreiber, Abi Motamedi
  • Patent number: 8983257
    Abstract: An optical delivery apparatus is disclosed including: an optical fiber extending between a distal end having a distal end face and a proximal end having a proximal end face, an optical element positioned to receive the light emitted from the distal end face and direct the light to an illumination region; and a non-metallic housing containing the optical fiber and the optical element and maintaining the relative position of the optical fiber and the optical element.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: March 17, 2015
    Assignee: Nomir Medical Technologies, Inc.
    Inventors: Eric Bornstein, Edward Sinofsky
  • Publication number: 20150063752
    Abstract: In one embodiment, an optical subassembly includes a housing, a ball lens, a constraining insert, and a ball lens constraint. The housing includes a fiber receptacle formed in a first end of the housing and a second receptacle formed in a second end of the housing opposite the first end. The fiber receptacle and second receptacle define a cavity through the housing from the first end to the second end of the housing. The ball lens and the constraining insert are disposed within the cavity. The ball lens constraint is configured to cooperate with the constraining insert to constrain the ball lens in three dimensions within the cavity.
    Type: Application
    Filed: November 10, 2014
    Publication date: March 5, 2015
    Inventors: Stefan M. Pfnuer, Tat Ming Teo, Songyang Li
  • Publication number: 20150002839
    Abstract: An optical coupling lens includes a main portion and two reference portions. The main portion includes a first surface having at least one first converging lens formed thereon, a second surface having at least one second converging lenses formed thereon, and a reflecting surface. The second surface is substantially perpendicular to the first surface. An angle between the reflecting surface and the first surface is about 45 degrees. An optical axis of the first converging lens is substantially perpendicular to the first surface, and an optical axis of the second converging lens is substantially perpendicular to the second surface. Each reference portion includes a reference member. The reference member includes a reference point. A connecting line of the reference points of the reference portions is substantially parallel to the first surface and the second surface, and the connecting line is in a surface substantially coplanar with the reflecting surface.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 1, 2015
    Inventor: YI HUNG
  • Patent number: 8909018
    Abstract: A lens element includes a main body. The main body includes a number of first lens portions, a number of second lens portions corresponding to the first lens portions, and a deflecting portion upwardly protruding from a surface of the main body. The deflecting portion includes a deflecting surface positioned outside the main body. The deflecting surface deflects optical signals between the first lens portions and the second lens portions.
    Type: Grant
    Filed: April 21, 2013
    Date of Patent: December 9, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chang-Wei Kuo
  • Patent number: 8905648
    Abstract: The expanded beam, fiber optic connector includes an optical fiber, and a ferrule. The optical fiber includes a modified mode field diameter segment. The ferrule includes a recess. The optical fiber is retained by the ferrule. The modified mode field diameter segment is positioned in the recess of the ferrule.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 9, 2014
    Assignee: Cinch Connectivity Solutions, Inc.
    Inventor: Wade F. M. Zhang
  • Patent number: 8891919
    Abstract: An optical device includes first and second optical waveguides that each include a core and a cladding, and a connector that optically couples the first optical waveguide and the second optical waveguide with a lens interposed therebetween, wherein, in at least one of the first and the second optical waveguides, a difference in refractive index between the core and the cladding in a first direction differs from a difference in refractive index between the core and the cladding in a second direction that is different from the first direction, and wherein, in at least one of the first and the second optical waveguide, a first point of emergence of first rays that are output at angles in the first direction and a second point of emergence of second rays that are output at angles in the second direction are offset from each other along an optical axis.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: November 18, 2014
    Assignee: Fujitsu Limited
    Inventor: Takashi Shiraishi
  • Patent number: 8885992
    Abstract: At the time of assembly of an optical transmission/reception module, a test variable wavelength light source 22 for outputting a test light signal is connected to a connector 8 of an optical fiber 7, and a large-diameter PD 23 measures a transmission loss in a light wavelength band limiting filter 12 while a rotational position determining unit 24 rotates a fiber ferrule 5, so that the rotational position determining unit 24 determines the rotational position ?loss-min of the fiber ferrule 5 which minimizes the transmission loss in the light wavelength band limiting filter 12, and aligns the fiber ferrule 5 at the rotational position ?loss-min.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: November 11, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tamon Omura, Nobuo Ohata, Masatoshi Katayama
  • Patent number: 8861908
    Abstract: This document discusses, among other things, a connector for an optical imaging probe that includes one or more optical fibers communicating light along the catheter. The device may use multiple sections for simpler manufacturing and ease of assembly during a medical procedure. Light energy to and from a distal minimally-invasive portion of the probe is coupled by the connector to external diagnostic or analytical instrumentation through an external instrumentation lead. Certain examples provide a self-aligning two-section optical catheter with beveled ends, which is formed by separating an optical cable assembly. Techniques for improving light coupling include using a lens between instrumentation lead and probe portions. Techniques for improving the mechanical alignment of a multi-optical fiber catheter include using a stop or a guide.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: October 14, 2014
    Assignee: Vascular Imaging Corporation
    Inventors: Michael J. Eberle, Kenneth N. Bates, William W. Morey
  • Patent number: 8861907
    Abstract: In one embodiment, an apparatus may include an optical fiber that may have a surface non-normal to a longitudinal axis of a distal end portion of the optical fiber. The surface may define a portion of an interface configured to redirect electromagnetic radiation propagated from within the optical fiber and incident on the interface to a direction offset from the longitudinal axis. The apparatus may also include a doped silica cap that may be fused to the optical fiber such that the surface of the optical fiber may be disposed within a cavity defined by the doped silica cap.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: October 14, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Jeffrey W. Zerfas, Richard P. Tumminelli
  • Patent number: 8849076
    Abstract: An optical switch includes a microresonator comprising a plurality of silicon nanoparticles within a silicon-rich silicon oxide layer. The microresonator further includes an optical coupler optically coupled to the microresonator and configured to be optically coupled to a signal source. A method of optical switching includes providing an optical switch comprising an optical coupler and a microresonator having a plurality of nanoparticles and receiving an optical pulse by the optical switch, wherein at least a portion of the optical pulse is absorbed by the nanoparticles such that at least a portion of the microresonator undergoes an elevation of temperature and a corresponding refractive index change when the optical pulse has an optical power greater than a predetermined threshold level.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: September 30, 2014
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Michel J. F. Digonnet, Anuranjita Tewary, Mark Brongersma
  • Patent number: 8824841
    Abstract: An expanded beam optical insert is provided for use in optical data connectors, such as fiber optic connectors or the like. The expanded beam optical insert may be readily assembled, substantially without the use of costly fixturing tools or adhesives, while still allowing the precise positioning of alignment of optical lenses for placement of ferrule assemblies, optical stubs, and the like.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: September 2, 2014
    Inventor: David T. Mullen
  • Patent number: 8818149
    Abstract: Exemplary apparatus for obtaining information for a structure can be provided. For example, the exemplary apparatus can include at least one first optical fiber arrangement which is configured to transceive at least one first electro-magnetic radiation, and can include at least one fiber. The exemplary apparatus can also include at least one second focusing arrangement in optical communication with the optical fiber arrangement. The second arrangement can include a ball lens, and be configured to focus and provide there through the first electro-magnetic radiation to generate the focused electro-magnetic radiation. Further, the exemplary apparatus can include at least at least one dispersive third arrangement which can receive a particular radiation (e.g., the first electro-magnetic radiation(s) and/or the focused electro-magnetic radiation), and forward a dispersed radiation thereof to at least one section of the structure.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: August 26, 2014
    Assignee: The General Hospital Corporation
    Inventors: Milen Shishkov, Guillermo J. Tearney, Brett Eugene Bouma, Dvir Yelin, Nicusor Iftimia
  • Patent number: 8787714
    Abstract: Provided is a lens array that can reliably obtain monitor light and is easy to manufacture. In the provided lens array, light incident on a first lens surface (11) from light-emitting elements is split by a reflective/transmissive layer (17) between a first optical surface (14a) and a first prism surface (16a) and sent, respectively, towards a second lens surface (12) and a third lens surface (13). Monitor light included in the light sent towards the third lens surface (13) is sent by the third lens surface (13) towards a light-receiving element (8). The path of light incident on the first optical surface (14a) is collinear with the path of light outgoing from the second optical surface (14b).
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: July 22, 2014
    Assignee: Enplas Corporation
    Inventor: Shimpei Morioka
  • Patent number: 8768119
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 1, 2014
    Assignee: Kaiam Corp.
    Inventors: Bardia Pezeshki, John Heanue
  • Patent number: 8768120
    Abstract: An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 1, 2014
    Assignee: Kaiam Corp.
    Inventors: Bardia Pezeshki, John Heanue
  • Patent number: 8724943
    Abstract: An APC receptacle stub and an APC TOSA having the same are provided. The APC receptacle stub includes a first APC stub and a second APC stub. The first APC stub has an optical fiber inserted thereto and is provided with one end section polished in an APC shape. The second APC stub has an optical fiber inserted thereto and is provided with one end section polished in an APC shape and an opposite end section which is coupled to an opposite end section of the first APC stub through rotation adjustment in the same axial direction as an axial direction of the opposite end section of the first APC stub. The APC receptacle stub enables easy optical alignment and is applicable to a light source that is sensitive to reflection.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: May 13, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong-Hoon Lee, Seung-Hyun Cho, Jie-Hyun Lee, Sang-Soo Lee, Eun-Gu Lee, Han-Hyub Lee
  • Patent number: 8693825
    Abstract: A ferrule structure including a ferrule having an end face shape configured to incorporate at least a portion of a lens attached to an end of an optical fiber. The end face includes a cavity in which a circumference of the cavity is equal to or less than the outer diameter of the ferrule and larger than in inner diameter of an opening in the ferrule housing an optical fiber.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: April 8, 2014
    Assignee: AFL Telecommunications LLC
    Inventors: Chandraika (John) Sugrim, Daiichiro Tanaka, Lalitkumar Bansal, Ted Lichoulas, Lawrence Srutkowski
  • Patent number: 8687929
    Abstract: In order to facilitate positioning of a collimator lens and an optical fiber while preventing cost increase, provided is an optical collimator having a holder (11) which has a cylindrical shape and is made of metal; a collimator lens (12) which is housed in a housing part (11c) formed at an end of the holder (11); and an optical fiber (13) which is inserted via an insertion hole (11a) formed at an opposite end of the holder (11) and is fixed at a predetermined position. At least one of the collimator lens (12) and an end surface of the optical fiber (13) is made to abut to a recess (11e) formed in proximity of the housing part (11c) of the holder (11) thereby to perform positioning.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: April 1, 2014
    Assignee: Mitsubishi Pencil Company Limited
    Inventors: Naohiko Moriya, Yojiro Sano, Hitoshi Suzuki, Kiyoshi Iwamoto
  • Patent number: 8571364
    Abstract: In certain embodiments, a method includes forming a ferrule from a portion of a tube. The tube is cut to yield the ferrule and a short cannula. A multi-spot generator with a faceted optical element is added to the short cannula. An optical fiber is placed into the ferrule, and the ferrule and the short cannula are assembled. In certain embodiments, a system includes a long cannula, an optical fiber, and a multi-spot generator. The optical fiber can carry a laser beam to a distal end of the long cannula. The multi-spot generator is located at the distal end and comprises a faceted optical element and a ball lens. The faceted optical element can be formed directly onto or separately from the ball lens. The ball lens can be spherical or hemispherical.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: October 29, 2013
    Assignee: Alcon Research, Ltd.
    Inventors: Ronald T. Smith, Michael A. Zica
  • Patent number: 8565562
    Abstract: An optical lens of an optical connector includes alignment features for passive connection alignment. Fiber inserted into the lens is aligned with a fiber groove that restricts motion in at least one direction to align the fiber. The lens includes an alignment feature to passively align the lens with a mating alignment feature of a mating connector. The groove may, for example, be L-, V-, or U-shaped. The alignment feature can be a post with corresponding recess. Alignment can further be secured with a tab that constrains pivoting of the connectors when engaged.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: October 22, 2013
    Assignee: Intel Corporation
    Inventor: Jamyuen Ko
  • Publication number: 20130266262
    Abstract: An optical path-changing member comprises a member main body which is made of a transparent material and in which a reflection section optically connecting the optical fiber to the light input and output end is formed, wherein the reflection section is a first lens having a concave shape when viewed from an incident direction and making light incident on the inside of the member main body from one of the optical fiber and the light input and output end be internally reflected in the member main body and directed to the other of the optical fiber and the light input and output end, a second lens having a convex shape toward the optical component is formed in a light incidence and emission surface of the member main body, that faces the optical component.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 10, 2013
    Applicant: FUJIKURA LTD.
    Inventors: Akito NISHIMURA, Shota NUMATA
  • Patent number: 8554031
    Abstract: The present invention provides an optical microprobe device and method for focusing multimodal radiation with wavelength-scale spatial resolution and delivering the focused radiation to a specimen, including: a radiation source; and one or more of a plurality of optically transparent or semitransparent spheres and a plurality of optically transparent or semitransparent cylinders optically coupled to the radiation source; wherein the one or more of the plurality of optically transparent or semitransparent spheres and the plurality of optically transparent or semitransparent cylinders periodically focus radiation optically transmitted from the radiation source such that radiation ultimately transmitted to the specimen has predetermined characteristics. Preferably, the spheres or cylinders are assembled inside one of a hollow waveguide, a hollow-core photonic crystal fiber, a capillary tube, and integrated in a multimode fiber. Alternatively, the spheres or cylinders are assembled on a substrate.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: October 8, 2013
    Assignee: University of North Carolina at Charlotte
    Inventor: Vasily N. Astratov
  • Patent number: 8520990
    Abstract: The present invention provides improved collimating lens assemblies (32) which include: a singlemode fiber (38) terminating in a distal end; a step-index multimode fiber (44) having a proximal end abutting to the singlemode fiber distal end, and having a distal end; a graded-index multimode fiber (45) having a proximal end abutting the step-index multimode fiber distal end, and having a distal end; and a collimating lens (34) longitudinally spaced from the graded-index multimode fiber distal end by an intermediate air gap (43), and operatively arranged to collimate light rays emanating from the graded-index multimode fiber distal end. The improved collimating lens assembly is characterized by the fact that there is no epoxy, silicone gel or index-matching material between the graded-index multimode fiber distal end and the collimating lens.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: August 27, 2013
    Assignee: Moog Inc.
    Inventors: Norris E. Lewis, Martin J. Oosterhuis, K. Peter Lo
  • Patent number: 8509578
    Abstract: A method for carrying out electromagnetic cloaking using metamaterial devices requiring anisotropic dielectric permittivity and magnetic permeability may be emulated by specially designed tapered waveguides. This approach leads to low-loss, broadband performance in the visible frequency range, which is difficult to achieve by other means. We apply this technique to electromagnetic cloaking. A broadband, two-dimensional, electromagnetic cloaking is demonstrated in the visible frequency range on a scale ˜100 times the wavelength. Surprisingly, the classic geometry of Newton rings is suited for an experimental demonstration of this effect.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: August 13, 2013
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Igor I. Smolyaninov, Vera N. Smolyaninova, Alexander V. Kildishev, Vladimir M. Shalaev
  • Patent number: 8503840
    Abstract: Method and apparatus for forming an optical-fiber-array assembly, which include providing a plurality of optical fibers including a first optical fiber and a second optical fiber, providing a fiber-array plate that includes a first surface and a second surface, connecting the plurality of optical fibers to the first surface of the fiber-array plate, transmitting a plurality of optical signals through the optical fibers into the fiber-array plate at the first surface of the fiber-array plate, and emitting from the second surface of the fiber-array plate a composite output beam having light from the plurality of optical signals. Optionally, the first surface of the fiber-array plate includes indicia configured to assist in the alignment of the plurality of optical fibers on the first surface of the fiber-array plate. In some embodiments, the second surface of the fiber-array plate includes a plurality of beam-shaping optics configured to shape the composite output beam.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: August 6, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Yongdan Hu, Charles A. Lemaire
  • Publication number: 20130114927
    Abstract: In certain embodiments, a method includes forming a ferrule from a portion of a tube. The tube is cut to yield the ferrule and a short cannula. A multi-spot generator with a faceted optical element is added to the short cannula. An optical fiber is placed into the ferrule, and the ferrule and the short cannula are assembled. In certain embodiments, a system includes a long cannula, an optical fiber, and a multi-spot generator. The optical fiber can carry a laser beam to a distal end of the long cannula. The multi-spot generator is located at the distal end and comprises a faceted optical element and a ball lens. The faceted optical element can be formed directly onto or separately from the ball lens. The ball lens can be spherical or hemispherical.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 9, 2013
    Inventors: Ronald T. Smith, Michael A. Zica
  • Patent number: RE45512
    Abstract: Apparatus and method are provided for transmitting at least one electro-magnetic radiation is provided. In particular, at least one optical fiber having at least one end extending along a first axis may be provided. Further, a light transmissive optical arrangement may be provided in optical cooperation with the optical fiber. The optical arrangement may have a first surface having a portion that is perpendicular to a second axis, and a second surface which includes a curved portion. The first axis can be provided at a particular angle that is more than 0° and less than 90° with respect to the second axis.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: May 12, 2015
    Assignee: The General Hospital Corporation
    Inventors: Guillermo J. Tearney, Milen Shishkov, Brett E. Bouma