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    Fabrication of a lightguide preform by the outside vapor deposition process
    1.
    发明授权
    Fabrication of a lightguide preform by the outside vapor deposition process 失效
    通过外部气相沉积工艺制造光导预制件

    公开(公告)号：US4708726A

    公开(公告)日：1987-11-24

    申请号：US902126

    申请日：1986-09-02

    申请人： Thomas J. Miller ,  David A. Nicol

    发明人： Thomas J. Miller ,  David A. Nicol

    IPC分类号： C03B37/014 ,  C03B37/023

    CPC分类号： C03B37/01493 ,  C03B37/01446

    摘要： A lightguide preform is fabricated by depositing a thin carbon layer (40) on a cylindrical glass mandrel (30) and further depositing a plurality of glassy soot layers (32) thereover. The resulting composite structure is heated, in a furnace, at a low temperature to remove the carbon layer (40) and then heated at an elevated temperature to consolidate the glassy soot layers on the glass mandrel to form the lightguide preform.

    摘要翻译： 通过在圆柱形玻璃心轴（30）上沉积薄碳层（40）并进一步在其上沉积多个玻璃状烟灰层（32）来制造光导预制件。 将所得复合结构在炉中在低温下加热以除去碳层（40），然后在升高的温度下加热，以固化玻璃心轴上的玻璃状烟灰层以形成光导预制件。

    Method for consolidating doped glass using an encapsulating structure
    2.
    发明授权
    Method for consolidating doped glass using an encapsulating structure 失效
    使用封装结构固结掺杂玻璃的方法

    公开(公告)号：US5039325A

    公开(公告)日：1991-08-13

    申请号：US535611

    申请日：1990-06-11

    申请人： Thomas J. Miller ,  Douglas W. Monroe ,  David A. Nicol ,  David B. Steele

    发明人： Thomas J. Miller ,  Douglas W. Monroe ,  David A. Nicol ,  David B. Steele

    IPC分类号： C03B37/012 ,  C03B37/014 ,  C03C13/04

    CPC分类号： C03B37/0146 ,  C03B37/01211 ,  C03B37/01413 ,  C03B37/01446 ,  C03C13/045 ,  C03B2201/12 ,  C03B2203/22 ,  Y10S65/16

    摘要： A fluorine-doped silica soot cylinder (11) is consolidated by containing it within an encapsulation structure (29) within a furance (21). The atmosphere within the encapsulation structure is kept substantially stagnant during the consolidating, and the volume enclosed by the encapsulation structure (29) is only slightly greater than the volume of the soot cylinder (11). A gap (52) between the volume enclosed by the encapsulating structure and the furnace is kept small enough to impede gas flow to a sufficient extent that the atmosphere within the encapsulating structure (29) is substantially stagnant during consolidation. During consolidation, fluorine concentration within the encapsulation structure (29) is uniformly distributed within the soot cylinder (11).

    摘要翻译： 氟掺杂的二氧化硅烟灰缸（11）通过将其包含在保护件（21）内的封装结构（29）内而被固结。 密封结构内的气氛在固结过程中基本停滞，并且由封装结构（29）包围的体积仅略微大于烟炱缸（11）的体积。 由封装结构和炉之间包围的体积之间的间隙（52）保持足够小以阻止气体流动到足够的程度，使得封装结构（29）内的气氛在固结期间基本停滞。 在固结期间，封装结构（29）内的氟浓度均匀地分布在烟灰缸（11）内。

    Method for stretching a glass rod
    4.
    发明授权
    Method for stretching a glass rod 失效

    公开(公告)号：US4631079A

    公开(公告)日：1986-12-23

    申请号：US801431

    申请日：1985-11-25

    申请人： Harold R. Clark ,  David A. Nicol

    发明人： Harold R. Clark ,  David A. Nicol

    IPC分类号： C03B23/047 ,  C03B37/012 ,  C03B23/04

    CPC分类号： C03B37/0124 ,  C03B23/047

    摘要： Control over the diameter variations in a glass rod (10) during the stretching thereof is accomplished by cooling the rod after heating and initial neck down of a portion (22) thereof. After cooling, the rod (10) is reheated, at a lower temperature sufficient to reflow the glass in the necked-down portion (22) thereof, and is then stretched to the desired final diameter. Heating the rod (10) at a lower temperature during stretching increases the viscosity thereof which reduces its response to the stretching conditions, thereby affording better control over diameter fluctuations.

    Method for stretching a glass rod
    5.
    发明授权
    Method for stretching a glass rod 失效
    拉伸玻璃棒的方法

    公开(公告)号：US4578101A

    公开(公告)日：1986-03-25

    申请号：US654600

    申请日：1984-09-26

    申请人： Harold R. Clark ,  David A. Nicol

    发明人： Harold R. Clark ,  David A. Nicol

    IPC分类号： C03B23/047 ,  C03B37/012 ,  C03B23/04

    CPC分类号： C03B37/0124 ,  C03B23/047

    摘要： Control over the diameter variations in a glass rod (10) during the stretching thereof is accomplished by cooling the rod after heating and initial neck down of a portion (22) thereof. After cooling, the rod (10) is reheated, at a lower temperature sufficient to reflow the glass in the necked-down portion (22) thereof, and is then stretched to the desired final diameter. Heating the rod (10) at a lower temperature during stretching increases the viscosity thereof which reduces its response to the stretching conditions, thereby affording better control over diameter fluctuations.

    摘要翻译： 玻璃棒（10）在其拉伸过程中的直径变化的控制是通过在加热之后冷却杆并使其部分（22）的初始颈缩来实现的。 在冷却之后，将杆（10）在足以使其颈缩部分（22）中的玻璃回流的较低温度下再加热，然后将其拉伸至所需的最终直径。 在拉伸期间在较低温度下加热棒（10）增加其粘度，这​​降低了其对拉伸条件的响应，从而提供了对直径波动的更好控制。