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    Method and apparatus for forming soot for the manufacture of glass
    86.
    发明授权
    Method and apparatus for forming soot for the manufacture of glass 失效
    用于形成用于制造玻璃的烟灰的方法和装置

    公开(公告)号：US06672106B1

    公开(公告)日：2004-01-06

    申请号：US09762307

    申请日：2001-01-31

    Applicant: Daniel W. Hawtof ,  John Stone, III

    Inventor： Daniel W. Hawtof ,  John Stone, III

    IPC: C03B2000

    CPC classification number: C03B19/1423 ,  C03B37/0142 ,  C03B2201/06 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2207/06 ,  C03B2207/08 ,  C03B2207/12 ,  C03B2207/14 ,  C03B2207/20 ,  C03B2207/22 ,  C03B2207/32 ,  C03B2207/34 ,  C03B2207/42 ,  C03B2207/46 ,  C03B2207/80 ,  C03B2207/81 ,  Y02P40/57

    Abstract: The present invention is directed to a method and apparatus for forming soot used in making glass, and in particular, optical waveguides. A liquid precursor (66) is first fed into orifice (52) of a liquid orifice insert (48) within an injector (44) positioned within an atomizing burner assembly, and is thereafter discharged from the injector into a pressurization chamber (56). An atomization gas (70) is also fed into the pressurization chamber (56) to mix with the liquid precursor liquid stream (68) which breaks into droplets (76). The liquid precursor and atomization gas arm forced under pressure out of an atomization orifice (32) on the face of the burner (30) assembly. Flame gas (74), reaction gas (84) and shield gas (82) are ejected from burner orifices (40, 38, 36 and 34) to produce the flame. The atomized liquid precursor thus discharged is fed into the flame (72) produced at the face of the burner assembly where the atomized liquid precursor reacts with the flame to form soot (78) on a rotating mandrel (80).

    Abstract translation: 本发明涉及一种用于形成用于制造玻璃，特别是光波导的烟灰的方法和装置。 液体前体（66）首先被供给到位于雾化燃烧器组件内的喷射器（44）内的液体孔口插入件（48）的孔口（52）中，然后从喷射器排出到加压室（56）中。 雾化气体（70）也被供给到加压室（56）中以与液体前体液体流（68）混合，该液体流体液流（68）分解成液滴（76）。 液体前体和雾化气体臂在压力下被迫从燃烧器（30）组件的表面上的雾化孔（32）流出。 火焰气体（74），反应气体（84）和保护气体（82）从燃烧器孔（40,38,36和34）喷出以产生火焰。 这样排出的雾化的液体前体被送入在燃烧器组件的表面产生的火焰（72）中，其中雾化的液体前体与火焰反应，以在旋转的心轴（80）上形成烟灰（78）。

    Ultralow-loss silica glass and optical fibers using the same
    90.
    发明授权
    Ultralow-loss silica glass and optical fibers using the same 有权
    超低损耗石英玻璃和使用其的光纤

    公开(公告)号：US06153546A

    公开(公告)日：2000-11-28

    申请号：US229582

    申请日：1999-01-13

    Applicant: Kazuya Saitoh ,  Akira Ikushima

    Inventor： Kazuya Saitoh ,  Akira Ikushima

    IPC: C03C3/06 ,  C03C13/04

    CPC classification number: C03C13/046 ,  C03B37/014 ,  C03C3/06 ,  G02B6/02 ,  C03B2201/07 ,  C03B2201/30 ,  C03B2201/50 ,  C03B2201/54 ,  C03C2201/40 ,  C03C2201/50 ,  C03C2201/54

    Abstract: This ultralow-loss glass is characterized in that high purity silica glass contains 1 to 500 wt.ppm of at least one network modifying oxide. It is assumed that the network modifying oxide appropriately loosens the tetrahedral network structure of silica and hence Rayleigh scattering is decreased. Examples of the network modifying oxide include Na.sub.2 O, K.sub.2 O, Li.sub.2 O, MgO, CaO, and PbO. Since Rayleigh scattering losses are minimal in comparison with those of high purity silica glass, this impurity-added silica glass is excellent as a base material of a glass fiber for a long-distance transmission.

    Abstract translation: 这种超低损耗玻璃的特征在于，高纯度二氧化硅玻璃含有1至500重量ppm的至少一种网络改性氧化物。 假设网络修饰氧化物适当地松散二氧化硅的四面体网络结构，因此瑞利散射降低。 网络改性氧化物的实例包括Na 2 O，K 2 O，Li 2 O，MgO，CaO和PbO。 由于与高纯度二氧化硅玻璃相比，瑞利散射损失最小，所以这种添加了杂质的石英玻璃作为用于长距离传输的玻璃纤维的基材是优异的。

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