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6 条记录 (耗时 0.019 秒)

    Device for drawing down an optical fiber preform
    2.
    发明授权
    Device for drawing down an optical fiber preform 失效
    拉伸光纤预制件的装置

    公开(公告)号：US5931984A

    公开(公告)日：1999-08-03

    申请号：US843776

    申请日：1997-04-22

    申请人： Alain Drouart ,  Max Matau ,  Pascal Mazabraud

    发明人： Alain Drouart ,  Max Matau ,  Pascal Mazabraud

    IPC分类号： G02B6/00 ,  C03B37/027 ,  C03B37/029 ,  C03B3/00

    CPC分类号： C03B37/02736 ,  C03B37/029 ,  C03B2205/80

    摘要： A device for drawing down an optical fiber preform (2) connected at one end to a feed rod (3) having an equal or smaller diameter. A chamber (11) in which the preform is drawn has an upper part (11A) with an opening (12). The opening engages the preform to seal the chamber. An enclosure (5) has a seal (6) at its upper part (5A) for sealing around the feed rod. A lower part (5B) of the enclosure contacts the upper part of the chamber to seal the chamber while the feed rod is passing through the opening.

    摘要翻译： 一种用于将一端连接到具有相同或更小直径的进料杆（3）的光纤预制件（2）的装置。 其中预成型件被拉伸的室（11）具有带有开口（12）的上部（11A）。 开口接合预成型件以密封腔室。 外壳（5）在其上部（5A）处具有用于密封进料棒周围的密封件（6）。 外壳的下部（5B）接触腔室的上部，以在进给杆穿过开口时密封腔室。

    Method of detecting whether at least one die is centered about a thread held taught between two fixed points
    5.
    发明授权
    Method of detecting whether at least one die is centered about a thread held taught between two fixed points 失效
    检测至少一个管芯是否在两个固定点之间保持的螺纹中心的方法

    公开(公告)号：US5617210A

    公开(公告)日：1997-04-01

    申请号：US543108

    申请日：1995-10-13

    申请人： Philippe Darbon ,  Bernard Floch ,  Max Matau

    发明人： Philippe Darbon ,  Bernard Floch ,  Max Matau

    IPC分类号： G01B17/04 ,  G01B11/00

    CPC分类号： G01B17/04

    摘要： The present invention relates to a method of detecting whether at least one die is centered about a thread held taught between two fixed points separated by a distance L, wherein:the thread is excited into vibration;its frequency F of vibration is measured;the corresponding length 1 of vibrating chord between one of said fixed points referred to as a "reference" fixed point and another point referred to as a "contact" point is deduced therefrom; andlength l is compared with length L and with the length of the segment of thread between said reference fixed point and said die, so as to deduce therefrom:either that the thread is touching said die, if length l corresponds to the length of the segment, said contact point then being situated at said die;or else that the thread is not touching said die, if length l is equal to the length L between said two fixed points, in which case said die is properly centered, said contact point then coinciding with the other one of said fixed points.

    摘要翻译： 本发明涉及一种检测至少一个管芯是否在两个固定点之间保持的螺纹中心距离为L的方法，其中：将螺纹激发成振动; 测量振动频率F; 从其中推导出称为“参考”固定点的一个所述固定点之间的振动弦的对应长度+ E，uns 1 + EE，称为“接触”点的另一点。 和长度+ E，uns l + EE与长度L和所述参考固定点和所述模具之间的线段长度进行比较，从而推断：线程是否接触所述模具，如果长度+ E，uns l + EE对应于段的长度，所述接触点然后位于所述管芯处; 或者如果长度+ E，uns l + EE等于所述两个固定点之间的长度L，则线不接触所述模具，在这种情况下，所述模具适当地居中，所述接触点然后与另一个 的固定点。

    Method of coating an optical fiber
    6.
    发明授权
    Method of coating an optical fiber 失效
    涂布光纤的方法

    公开(公告)号：US6022585A

    公开(公告)日：2000-02-08

    申请号：US64609

    申请日：1998-04-23

    申请人： Jean-Fran.cedilla.ois Bourhis ,  Max Matau

    发明人： Jean-Fran.cedilla.ois Bourhis ,  Max Matau

    IPC分类号： G02B6/44 ,  B05C1/04 ,  B05D3/02 ,  B05D7/20 ,  C03C25/10 ,  C03C25/12 ,  B05D5/06

    CPC分类号： C03C25/106 ,  C03C25/12

    摘要： The invention relates to a method of coating an optical fiber, the method comprising the following steps: applying a polymerizable coating material to the surface of the optical fiber; and polymerizing said material to obtain a coating. In the method, the optical fiber prior to application of said material is raised to a value T determining the value T' of the temperature at which said material polymerizes.

    摘要翻译： 本发明涉及一种涂覆光纤的方法，该方法包括以下步骤：将可聚合涂层材料施加到光纤表面; 并聚合所述材料以获得涂层。 在该方法中，将施加所述材料之前的光纤升高到确定所述材料聚合的温度的值T'的值T.