Class / Patent application number | Description | Number of patent applications / Date published |
264100290 | Extruding (i.e., die) | 12 |
20080277810 | Method and Apparatus for Manufacturing Plastic Optical Fiber - A preform ( | 11-13-2008 |
20090102077 | Method for Manufacturing Light Guide - A method for manufacturing a light guide includes providing a roll unit, enclosing a metallic film around the roll unit wherein the metallic film has a plurality of micro-protrusions, driving a light guide film to pass through the roll unit to form a plurality micro-indentations on the light guide film, and cutting the light guide film to have a determined size to form a light guide. Thus, the light guide is made by hot rolling so that the light guide is made easily and quickly. In addition, only the surface of the light guide film is heated and softened so that after the light guide film is hot rolled by the roll unit, the light guide film is cooled and solidified quickly to prevent the light guide film from being deformed due to an excessive heat. | 04-23-2009 |
20090261488 | MANUFACTURING METHOD OF OPTICAL WAVEGUIDE MODULE - A manufacturing method of an optical waveguide module which is capable of forming a light reflecting portion with stabilized accuracy and which is good in production efficiency. The manufacturing method of an optical waveguide module in which an optical element is mounted on the back side of end portions of an optical waveguide is provided. For the production of the above-mentioned optical waveguide, end portions of an over cladding layer | 10-22-2009 |
20100109174 | Method for drop cable having an oval cavity - A method of forming a low-cost drop cable ( | 05-06-2010 |
20100148384 | FABRICATION OF OPTICALLY SMOOTH LIGHT GUIDE - Embodiments related to the fabrication of a light guide are provided. One disclosed embodiment comprises extruding a thermoplastic polymer through a die to form an extrusion, machining the extrusion to one or more fixed dimensions, and maintaining a face of the extrusion in contact with a heated mold surface to soften or melt the face of the extrusion while applying pressure to the extrusion. | 06-17-2010 |
20100276822 | RARE EARTH-DOPED CORE OPTICAL FIBER AND MANUFACTURING METHOD THEREOF - A rare earth-doped core optical fiber of the present invention includes a core comprising a silica glass containing at least aluminum and ytterbium, and a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, wherein the core has an aluminum concentration of 2% by mass or more, and ytterbium is doped into the core at such a concentration that the absorption band which appears around a wavelength of 976 nm in the absorption band by ytterbium contained in the core shows a peak absorption coefficient of 800 dB/m or less. | 11-04-2010 |
20100301504 | METHOD OF MAKING LIGHT-GUIDING MODULE - A method of making a light-guiding module includes the steps of applying a layer of light guide material containing methyl methacrylate oligomers on a reflector, and polymerizing the methyl methacrylate oligomers of the light guide material at a temperature ranging from 60 to 65° C. for 2.5 to 3 hours to form a light guide plate containing polymethylmethacrylate and integrally combining the reflector. Since there is no any gap between the light guide plate and the reflector, the light-guiding module reduces light loss, and improves the luminous efficiency of the backlight unit in which the light-guiding module is used. | 12-02-2010 |
20110024927 | COMPOSITE WAVEGUIDE - A composite waveguide includes a central core configured to transmit a plurality of modes and at least one side core helically wound about the central core and configured to be selectively coupled to at least a portion of the plurality of modes in the central core. | 02-03-2011 |
20110233798 | Fabrication of Optically Smooth Light Guide - Embodiments related to the fabrication of a light guide are provided. One disclosed embodiment comprises extruding a thermoplastic polymer through a die to form an extrusion, machining the extrusion to one or more fixed dimensions, and maintaining a face of the extrusion in contact with a heated mold surface to soften or melt the face of the extrusion while applying pressure to the extrusion. | 09-29-2011 |
20150021799 | METHOD OF MANUFACTURING A FIBER OPTIC DROP CABLE - A method of manufacturing a fiber optic cable includes manufacturing a subunit and manufacturing an outer portion. Manufacturing the subunit includes extruding a subunit jacket over a first reinforcement material constraining an optical fiber. Manufacturing the outer portion of the fiber optic cable includes extruding an outer jacket over a second reinforcement material between the outer jacket and the subunit jacket. Hoop stress is applied to the second reinforcement material by the outer jacket, which constrains the second reinforcement material such that it is positioned and oriented to provide anti-buckling support to the fiber optic cable and mitigate effects on the optical fiber of jacket shrinkage due to low temperatures. | 01-22-2015 |
20160025947 | METHOD FOR HIGH SPEED STRANDING OF ARAMID YARNS - A method for stranding aramid yarn around an endless core includes a stranding step that involves a stranding apparatus having at least one yarn bobbin. The bobbin revolves around its own axis and the bobbin revolves around the core, wherein the yarn unwinds from the bobbin and winds around the core. The yarn is a continuous aramid yarn provided with 0.05 to 0.95 wt %, based on the weight of the aramid, of a finish including an organophosphorus compound. The organophosphorus compound is a compound of the formula X1X2X3P═O. X1, X2, and X3 are independently selected from Y1-, Y1-O—, and M-O. Y1 is a branched or straight-chain C1-C20 alkyl, aryl or alkenyl. M is selected from Li, Na, K, or ammonium. At least one of X1, X2, or X3 is selected from Y1- or Y1-O—. | 01-28-2016 |
20160109677 | FIBER OPTIC CABLES WITH EXTRUDED ACCESS FEATURES AND METHODS OF MAKING FIBER OPTIC CABLES - Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket. | 04-21-2016 |