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    Silica glass material
    183.
    发明专利
    Silica glass material 有权
    二氧化硅玻璃材料

    公开(公告)号：JP2008030988A

    公开(公告)日：2008-02-14

    申请号：JP2006205894

    申请日：2006-07-28

    Applicant: Institute Of National Colleges Of Technology Japan ,  Univ Of Fukui ,  国立大学法人福井大学 ,  独立行政法人国立高等専門学校機構

    Inventor： HORII NAOHIRO ,  KAMIIDE MITSURU ,  INOUE AKIHIRO ,  KUZUU SHIN

    IPC: C03C3/04 ,  C03B20/00 ,  C03C17/245 ,  H01J61/30 ,  H01J61/35

    CPC classification number: C03B19/1453 ,  C03B2201/08

    Abstract: PROBLEM TO BE SOLVED: To provide a silica glass material which is hardly devitrified even under such a condition that it is brought into direct contact with an active metal or its halide in a high temperature state; and to provide a discharge lamp which is hardly devitrified and has a prolonged service life.
    SOLUTION: The silica glass material is used in an application where the silica glass material is used while being brought into contact with an active metal or its halide. The silica glass material is characterized in that a halogen-containing silica glass layer, in which the content of metal impurities is ≤100 ppb and the halogen content is 100-5,000 ppm, is formed on the surface brought into contact with the active metal or its halide. A method for producing the same and a method for preventing devitrification are also provided. Further, the discharge lamp has a light-emitting tube in which the active metal or its halide is enclosed and is characterized in that the halogen-containing silica glass layer is formed on the inner surface of the light-emitting tube.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：即使在高温状态下与活性金属或其卤化物直接接触的条件下也难以脱玻璃的石英玻璃材料; 并且提供几乎不透光并且具有延长的使用寿命的放电灯。 解决方案：二氧化硅玻璃材料用于石英玻璃材料与活性金属或其卤化物接触的应用中。 二氧化硅玻璃材料的特征在于，在与活性金属接触的表面上形成含有金属杂质含量≤100ppb，卤素含量为100-5,000ppm的含卤素二氧化硅玻璃，或 其卤化物。 还提供了其制造方法和防止失透的方法。 此外，放电灯具有包围活性金属或其卤化物的发光管，其特征在于，在发光管的内表面上形成含卤素的石英玻璃层。 版权所有（C）2008，JPO＆INPIT

    Method for producing mulimode optical fiber and multimode optical fiber produced thereby
    184.
    发明专利
    Method for producing mulimode optical fiber and multimode optical fiber produced thereby 审中-公开
    生产多模光纤和多模光纤的生产方法

    公开(公告)号：JP2005089211A

    公开(公告)日：2005-04-07

    申请号：JP2003322369

    申请日：2003-09-16

    Applicant: Sumitomo Electric Ind Ltd ,  住友電気工業株式会社

    Inventor： SATO FUMIAKI ,  TERASAWA YOSHIAKI ,  OSADA HISAMICHI

    IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C3/06 ,  G02B6/02 ,  G02B6/16

    CPC classification number: C03B37/01413 ,  C03B2201/08 ,  C03B2203/26 ,  Y02P40/57

    Abstract: PROBLEM TO BE SOLVED: To provide a multimode optical fiber glass preform having excellent bending characteristics and transmission band characteristics by increasing the difference in refractive index at the interface between a core and a cladding. SOLUTION: In the production of a glass preform, the difference in refractive index at the interface i between a core and a cladding is increased because the addition of a refractive-index-lowering dopant to the cladding decreases the refractive index N 2 of the cladding to steepen the refractive index change in the radial direction of the cladding near the interface i. This improves the property of confining light within the core, and therefore a bending loss does not occur because higher modes do not propagate to the cladding even when the optical fiber is bent. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 解决的问题：通过增加芯和包层之间的界面处的折射率差，提供具有优异的弯曲特性和透射带特性的多模光纤玻璃预制件。 解决方案：在制造玻璃预制棒时，由于向折射率降低的掺杂剂添加到包层上，所以在芯和包层之间的界面i处的折射率差异增加，折射率N < SB> 2 ，以使接触界面i附近的包层的径向方向的折射率变化更大。 这提高了将光限制在芯内的性质，因此即使当光纤弯曲时，也不会发生弯曲损耗，因为更高的模式不传播到包层。 版权所有（C）2005，JPO＆NCIPI

    Rod lens and optical components using the same
    185.
    发明专利
    Rod lens and optical components using the same 审中-公开

    公开(公告)号：JP2004045829A

    公开(公告)日：2004-02-12

    申请号：JP2002204047

    申请日：2002-07-12

    Applicant: Fujikura Ltd ,  株式会社フジクラ

    Inventor： IKEDA MASAJI ,  HIMENO KUNIHARU ,  ODA KENJI ,  ASANO KENICHIRO ,  HOSOYA HIDEYUKI

    IPC: G02B3/00 ,  C03B8/04 ,  C03B20/00 ,  C03C3/06 ,  G02B1/00

    CPC classification number: C03B19/1415 ,  C03B2201/08 ,  C03B2201/28

    Abstract: PROBLEM TO BE SOLVED: To provide a rod lens and an optical component which have an α-power refractive index distribution with small fluctuations of the refractive index in a refractive index distribution, small loss, and superior light convergence characteristics.
    SOLUTION: This rod lens consists principally of quartz glass which contains one of fluorine and diboron trioxide and diphosphorus pentoxide, or contains diphosphorus pentoxide together with fluorine and diboron trioxide. The concentration of fluorine and diboron trioxide gradually increase radially outward from the center axis of the rod lens to give the α-power refractive index such that the refractive index distribution of the rod lens decreases radially outward from the center axis. The rod lens is obtained by making glass raw material gas flow in a quartz pipe while rotating the quartz pipe on its axis, producing glass by heating the raw material gas to deposit the glass on the inner wall of the quartz pipe, and then heating the quartz pipe in which glass particulates are deposited to make the pipe solid.
    COPYRIGHT: (C)2004,JPO

    Manufacture of preform for polarization-keeping optical fiber
    186.
    发明专利
    Manufacture of preform for polarization-keeping optical fiber 失效
    用于偏振保持光纤的预制件的制造

    公开(公告)号：JPS6136130A

    公开(公告)日：1986-02-20

    申请号：JP15971584

    申请日：1984-07-30

    Applicant: Nippon Telegr & Teleph Corp

    Inventor： SHIMIZU MAKOTO ,  HANAWA FUMIAKI ,  OMORI YASUJI

    IPC: C03B37/012 ,  C03B8/04 ,  C03B20/00 ,  C03B37/014 ,  G02B6/024 ,  G02B6/10

    CPC classification number: C03B37/01446 ,  C03B37/01433 ,  C03B2201/08 ,  C03B2201/20 ,  C03B2201/24 ,  C03B2201/30 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/30 ,  G02B6/105

    Abstract: PURPOSE:To obtain a preform for polarization-keeping optical fiber having low transmission loss caused by structural defects, by forming a specific distribution of the sintering degree to the clad part of a porous glass preform, adding a dopant to the preform, and heating and converting the preform to a transparent glass. CONSTITUTION:(i) A porous preform (the sign 1 is seed rod) composed of the core part 2 and the clad part 3 is oscillated vertically along the direction of the arrow without rotating, and heated with an oxy-hydrogen burner 6 parallel to the center xis of the preform to form a part 4 having increased sintering degree. (ii) The product is preliminarily sintered at about 700-1,400 deg.C, cooled to room temperature, immersed in a dopant solution to effect the diffusion of the dopant into the preform, and heated to convert the dopant to oxide. Since the distribution of the dopant is determined by the sintering degree distribution of the soot, a part 5 having high dopant concentration is formed. (iii) Finally, the treated preform is subjected to the calcination process to obtain a transparent glass.

    Abstract translation: 目的：为了获得由结构缺陷引起的具有低传输损耗的偏振保持光纤的预成型件，通过对多孔玻璃预制件的包层部分形成烧结度的特定分布，向预成型件添加掺杂剂， 将预成型件转换成透明玻璃。 构成：（i）由核心部分2和包层部分3组成的多孔预成型件（标志1是种子棒）沿着箭头方向垂直摆动而不旋转，并与氧氢燃烧器6平行地加热 预成型件的中心xis以形成具有增加的烧结度的部分4。 （ii）将产物在约700-1400℃预先烧结，冷却至室温，浸入掺杂剂溶液中以使掺杂剂扩散到预成型体中，并加热以将掺杂剂转化为氧化物。 由于掺杂剂的分布由烟灰的烧结度分布决定，所以形成了掺杂浓度高的部分5。 （iii）最后，将经处理的预制件进行煅烧处理，得到透明玻璃。

    Production of base material for optical fiber
    187.
    发明专利
    Production of base material for optical fiber 失效
    生产用于光纤的基材

    公开(公告)号：JPS6126532A

    公开(公告)日：1986-02-05

    申请号：JP14415884

    申请日：1984-07-13

    Applicant: Sumitomo Electric Ind Ltd

    Inventor： TAMAZUKA TOSHIO ,  YOKOTA HIROSHI ,  ISHIGURO YOICHI

    IPC: C03B37/018 ,  C03B8/04 ,  C03B37/014 ,  G02B6/00

    CPC classification number: C03B37/0142 ,  C03B2201/08 ,  C03B2207/06 ,  C03B2207/20 ,  C03B2207/30 ,  C03B2207/50 ,  Y02P40/57

    Abstract: PURPOSE:To adjust easily the bulk density and obtain the titled large-sized base material stably in high yield, by flowing an Si hydride as a glass raw material having a greater heat of reaction than the glass raw material to be flowed in the central burner into the second burner and thereafter from the center. CONSTITUTION:A gas, e.g. SiCl4, GeCl4, H2, O2 or Ar, is made to flow from a burner 11 forming the central part in producing a porous glass base material, and an Si hydride compound having a greater heat of reaction than SiCl4, e.g. SiHCl3, SiH2Cl2 or SiH4, H2, O2 or Ar, is made to flow from the second burner 12 and burned. the above-mentioned glass raw material is subjected to flame hydrolysis, and the formed granular glass is deposited on a rotating starting material and grown in the rotational direction to afford the titled porous base material.

    Abstract translation: 目的：为了容易地调节体积密度，以高产率稳定地获得标题大尺寸的基材，通过使作为玻璃原料的硅氢化物作为玻璃原料流动，该玻璃原料具有比在中央燃烧器中流动的玻璃原料更大的反应热 进入第二个燃烧器，然后从中心进入。 构成：气体，例如 使SiCl 4，GeCl 4，H 2，O 2或Ar从形成中心部分的燃烧器11流出，​​生成多孔玻璃基材，以及具有比SiCl4更大的反应热的Si氢化物化合物，例如SiCl 4。 SiHCl 3，SiH 2 Cl 2或SiH 4，H 2，O 2或Ar制成从第二燃烧器12流出并燃烧。 将上述玻璃原料进行火焰水解，将形成的粒状玻璃沉积在旋转原料上并沿旋转方向生长，得到标题的多孔基材。

    マルチコア光ファイバおよびその製造方法
    189.
    发明专利
    マルチコア光ファイバおよびその製造方法 审中-公开
    多芯光纤及其制造方法

    公开(公告)号：JP2017032972A

    公开(公告)日：2017-02-09

    申请号：JP2016078959

    申请日：2016-04-11

    Applicant: 株式会社フジクラ

    Inventor： 遠藤 豊 ,  鳥谷 智晶 ,  井添 克昭 ,  工藤 学 ,  下道 毅

    IPC: G02B6/036 ,  G02B6/06 ,  C03B37/012 ,  C03B37/028 ,  G02B6/02

    CPC classification number: C03B37/028 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/21 ,  G02B6/02 ,  G02B6/036 ,  G02B6/06

    Abstract: 【課題】可視光領域の画像観察に好適なマルチコア光ファイバおよびその製造方法を提供する。 【解決手段】コア1およびクラッド2の双方が、少なくともフッ素がドープされた石英ガラスからなり、石英の屈折率を基準としたコア1の比屈折率差が−0.30%〜−0.10%であり、クラッド2は、コア1の外周を囲む第1クラッド4と、第1クラッド4の外側に設けられた第2クラッド3を含み、第1クラッド4とコア1との比屈折率差が0.8%以上であり、第2クラッド3の屈折率は、第1クラッド4の屈折率より高く、コア1の屈折率より低い。 【選択図】図2

    Abstract translation: 为了提供一个合适的多芯光纤，并且在可见光区域中的图像的观察及其制造方法。 两个核心1和包层2是至少氟掺杂的石英玻璃，芯1之间，参照二氧化硅的折射率的相对折射率差为-0.30％ - 0.10％， 包层2，第一包层4，其围绕芯1，其中，所述第二包层3的第一包层4的外侧的外周，第一包层4和芯体1之间的相对折射率差为0.8％以上 和第二皮层3的折射率比所述第一包层的折射率高4比芯1的折射率低。 .The

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