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    SYNTHETIC SILICA GLASS MOLDED BODY, METHOD OF MOLDING THE SAME, AND METHOD OF INSPECTING SYNTHETIC SILICA GLASS MOLDED BODY
    121.
    发明申请
    SYNTHETIC SILICA GLASS MOLDED BODY, METHOD OF MOLDING THE SAME, AND METHOD OF INSPECTING SYNTHETIC SILICA GLASS MOLDED BODY 审中-公开
    合成二氧化硅玻璃成型体，其成型方法和检查合成二氧化硅玻璃模体

    公开(公告)号：US20110130265A1

    公开(公告)日：2011-06-02

    申请号：US11885510

    申请日：2006-02-08

    Applicant: Masafumi Mizuguchi ,  Tetsuya Abe

    Inventor： Masafumi Mizuguchi ,  Tetsuya Abe

    IPC: C03C3/04 ,  C03B11/12 ,  G01J1/58

    CPC classification number: G01N21/64 ,  C03B11/08 ,  C03B23/0013 ,  C03B40/02 ,  C03B2201/03 ,  C03C3/06 ,  C03C23/0075 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2203/52 ,  G01N21/6402 ,  Y02P40/57

    Abstract: A method of molding a synthetic silica glass molded body by accommodating a synthetic silica glass block in a mold provided with a pressing portion, and by pressing the block while heating, the method comprising: a step of washing the synthetic silica glass block so that a concentration of copper which is present on the surface of the synthetic silica glass block is 2 ng/cm2 or less, and so that a concentration of aluminium thereon is 10 ng/cm2 or less, before accommodating the synthetic silica glass block in the mold; a step of heating high purity carbon powders in which a content of copper is 40 wt.ppb or less and a content of aluminium is 100 wt.ppb or less at a temperature condition of 1200° C. to 1900° C.; a step of heating the mold at a temperature condition of 1700° C. to 1900° C.; a step of applying the high purity carbon powders after the heating step on the inner surface of the mold after the heating step, before accommodating the synthetic silica glass block in the mold; and a step of molding the synthetic silica glass block in a predetermined form by pressing the block by means of the pressing portion while heating so as to the temperature of the block can be within a hold temperature range of 1500° C. to 1700° C., after accommodating the washed synthetic silica glass block in the mold.

    Abstract translation: 一种通过将合成石英玻璃块容纳在具有按压部分的模具中并通过在加热时加压块来成型合成石英玻璃成型体的方法，所述方法包括：洗涤合成石英玻璃块，使得 存在于合成石英玻璃块的表面上的铜的浓度在将合成石英玻璃块容纳在模具中之前为2ng / cm 2以下，使其上的铝浓度为10ng / cm 2以下。 在1200℃至1900℃的温度条件下，加热铜含量为40重量ppm以下，铝含量为100重量ppm以下的高纯度碳粉末的工序。 在1700℃至1900℃的温度条件下加热模具的步骤。 在将合成石英玻璃块容纳在模具中之后，在加热步骤之后将高纯度碳粉末加热到模具的内表面之后的步骤; 以及通过在加热的同时通过按压部分压块而使预定形式的合成石英玻璃块成型的步骤，使得块的温度可以在1500℃至1700℃的保持温度范围内 在将洗涤的合成石英玻璃块容纳在模具中之后。

    HIGH PURITY FUSED SILICA WITH LOW ABSOLUTE REFRACTIVE INDEX
    122.
    发明申请
    HIGH PURITY FUSED SILICA WITH LOW ABSOLUTE REFRACTIVE INDEX 有权
    具有低绝对折射率的高纯度二氧化硅

    公开(公告)号：US20100162759A1

    公开(公告)日：2010-07-01

    申请号：US12644563

    申请日：2009-12-22

    Applicant: Carlos Duran ,  Richard Michael Fiacco ,  Kenneth Edward Hrdina ,  Daniel Raymond Sempolinski

    Inventor： Carlos Duran ,  Richard Michael Fiacco ,  Kenneth Edward Hrdina ,  Daniel Raymond Sempolinski

    IPC: C03B27/012 ,  C03C3/04

    CPC classification number: C03B25/02 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03C3/06 ,  C03C2201/22 ,  C03C2201/23

    Abstract: A fused silica glass article having a low absolute refractive index and low concentrations of hydroxyl groups, halogens, and metal having a low absolute refractive index. The glass article contains less than about 10 ppm protium-containing and deuterium-containing hydroxyl groups by weight and less than about 20 ppm halogens by weight. The silica glass article also has an absolute refractive index (ARI) less than or equal to 1.560820. In one embodiment, the ARI of the fused silica article is achieved by lowering the fictive temperature of the fused silica. A method of lowering the fictive temperature is also described.

    Abstract translation: 具有低绝对折射率和低浓度羟基，卤素和具有低绝对折射率的金属的熔融石英玻璃制品。 玻璃制品含有重量少于约10ppm含氘羟基和重量小于约20ppm的卤素。 石英玻璃制品的绝对折射率（ARI）也小于或等于1.560820。 在一个实施方案中，熔融二氧化硅制品的ARI通过降低熔融二氧化硅的假想温度来实现。 还描述了降低虚构温度的方法。

    Process For the Production of Monoliths by Means of the Invert Sol-Gel Process
    126.
    发明申请
    Process For the Production of Monoliths by Means of the Invert Sol-Gel Process 审中-公开
    通过反相溶胶 - 凝胶法生产整体的方法

    公开(公告)号：US20080223078A1

    公开(公告)日：2008-09-18

    申请号：US11885746

    申请日：2006-02-14

    Applicant: Giulio Boara ,  Fulvio Costa ,  Andreas Ruckemann

    Inventor： Giulio Boara ,  Fulvio Costa ,  Andreas Ruckemann

    IPC: C03B19/12

    CPC classification number: C03B19/12 ,  B01J13/0091 ,  C03B2201/03 ,  C03C1/006 ,  C03C2203/20 ,  C03C2203/26 ,  C03C2203/30 ,  C03C2203/34

    Abstract: Process for the production of monoliths of glass by means of the sol-gel process, comprising the following steps: a) dispersion in water of an oxide prepared by the pyrogenic route, b) hydrolysis of an alkoxide in aqueous solution to form a hydrolysate, c) mixing of the hydrolysate of the alkoxide with the oxide prepared by the pyrogenic route to form a colloidal sol, d) optional removal of coarse contents from the colloidal sol, e) gelling of the colloidal sol in a mould, f) replacement of the water contained in the resulting aerogel by an organic solvent, g) drying of the aerogel, h) heat treatment of the dried aerogel.

    Abstract translation: 通过溶胶 - 凝胶法生产玻璃整体的方法，包括以下步骤：a）通过热解法制备的氧化物在水中的分散，b）在水溶液中水解醇盐以形成水解产物， c）将醇盐的水解产物与通过热解原料制备的氧化物混合以形成胶态溶胶，d）任选地从胶体溶胶中除去粗含量，e）胶体溶胶在模具中胶凝，f） 通过有机溶剂包含在所得气凝胶中的水，g）干燥气凝胶，h）干燥气凝胶的热处理。

    Optical fiber manufacturing method and optical fiber
    129.
    发明授权
    Optical fiber manufacturing method and optical fiber 失效
    光纤制造方法和光纤

    公开(公告)号：US07010203B2

    公开(公告)日：2006-03-07

    申请号：US10479852

    申请日：2003-04-03

    Applicant: Tomoyuki Yokokawa ,  Eiji Yanada ,  Masaaki Hirano

    Inventor： Tomoyuki Yokokawa ,  Eiji Yanada ,  Masaaki Hirano

    IPC: G02B6/02 ,  G02B6/22

    CPC classification number: G02B6/03694 ,  C03B37/01211 ,  C03B37/01892 ,  C03B2201/03 ,  C03B2201/07 ,  C03B2203/22 ,  C03B2203/36 ,  G02B6/02261 ,  G02B6/02271 ,  G02B6/0228 ,  G02B6/03644 ,  G02B6/03666

    Abstract: An object of the present invention is to provide an optical fiber manufacturing method and an optical fiber in which an increase in the transmission loss is suppressed by preventing hydroxyl group from entering near the core portion.This invention provides a method for manufacturing an optical fiber 10 including forming a glass pipe 16 by applying a ring portion 15 on the inner face of a starting pipe 14 as a starting material, inserting a glass rod 13 that becomes a central core portion 11 and a depressed portion 12 into the inside of the glass pipe 16, integrating the glass pipe 16 and the glass rod 13 by collapse to form a glass body 17, forming a preform 10a by providing a jacket portion 18 outside the glass body 17, and drawing the preform 10a, wherein the thickness of the starting pipe 14 is set in a range from 4 mm to 8 mm.

    Abstract translation: 本发明的目的是提供一种光纤制造方法和光纤，其中通过防止羟基进入芯部附近而抑制传输损耗的增加。 本发明提供了一种制造光纤10的方法，该光纤10包括通过在作为起始材料的起始管14的内表面上施加环形部分15，插入成为中心芯部11的玻璃棒13和 在玻璃管16的内部设有凹部12，将玻璃管16和玻璃棒13倒塌形成玻璃体17，通过在玻璃体17的外侧设置护套部18而形成预制件10a; 拉制预制件10a，其中起始管14的厚度设定在4mm至8mm的范围内。

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