Fiber optic cable with non-corrugated armor shielding
    1.
    发明授权
    Fiber optic cable with non-corrugated armor shielding 失效
    光纤电缆带无波纹铠装屏蔽

    公开(公告)号:US06665478B1

    公开(公告)日:2003-12-16

    申请号:US09689886

    申请日:2000-10-13

    申请人: Steven X. Shen

    发明人: Steven X. Shen

    IPC分类号: G02B644

    CPC分类号: G02B6/4433

    摘要: A fiber optic cable is fabricated with a non-corrugated armor tube which reduces the amount of material needed for the armoring while maintaining adequate cable flexibility. The outer diameter (OD) of the armor tube has a relationship with the thickness (t) of an outer jacket and intervening layers disposed about the tube such that 2t≦OD≦10t. If the tube is formed from a metal tape, sufficiently flexibility is provided as long as the outer diameter is less than 10t. The tube and outer jacket are loosely adhered to maintain flexibility, and the bending strain is maintained at less than 87.5% of the maximum bending strain for the cable.

    摘要翻译: 光纤电缆采用无波纹铠装管制造,可减少铠装所需材料的数量,同时保持足够的电缆灵活性。 铠装管的外径(OD)与外护套的厚度(t)和设置在管周围的中间层具有关系,使得2t <= OD <= 10t。 如果管由金属带形成,则只要外径小于10t,就提供足够的柔性。 管和外护套松散地粘附以保持柔性,并且弯曲应变保持在电缆的最大弯曲应变的小于87.5%。

    Coating applicator for producing optical fiber ribbon with improved geometry
    2.
    发明授权
    Coating applicator for producing optical fiber ribbon with improved geometry 失效
    用于生产具有改进的几何形状的光纤带的涂布器

    公开(公告)号:US06355102B2

    公开(公告)日:2002-03-12

    申请号:US09114836

    申请日:1998-07-14

    IPC分类号: B65C1102

    CPC分类号: G02B6/448 C03C25/18

    摘要: A coating applicator for continuously applying matrix material to a plurality of optical fibers arranged in a ribbon configuration is described. The coating applicator has a first contacting means for contacting the plurality of optical fibers on a first side of the plurality of optical fibers and for contacting a first end fiber of the plurality of optical fibers. The coating applicator also has a second contacting means for contacting the plurality of optical fibers on a second side of the plurality of optical fibers and for contacting a second end fiber of the plurality of optical fibers. The second contacting means is located downstream of the first contacting means, and is located relative to the first contacting means so that the optical fibers are forced to contact the first and second contacting means as described above.

    摘要翻译: 描述了一种用于将矩阵材料连续地施加到以带状配置布置的多个光纤的涂布器。 涂布器具有第一接触装置,用于在多个光纤的第一侧上接触多个光纤,并且用于接触多根光纤的第一端纤维。 涂布施加器还具有第二接触装置,用于在多个光纤的第二侧上接触多个光纤并且用于接触多个光纤的第二端部光纤。 第二接触装置位于第一接触装置的下游,并且相对于第一接触装置定位,使得如上所述迫使光纤与第一和第二接触装置接触。

    Method of making an optical fiber ribbon with improved planarity and an
optical fiber ribbon with improved planarity
    3.
    发明授权
    Method of making an optical fiber ribbon with improved planarity and an optical fiber ribbon with improved planarity 失效
    制造具有改善的平面度的光纤带的方法和具有改善的平面性的光纤带

    公开(公告)号:US5995693A

    公开(公告)日:1999-11-30

    申请号:US109529

    申请日:1998-07-02

    IPC分类号: G02B6/44

    CPC分类号: G02B6/448

    摘要: A method of making an optical fiber ribbon with improved planarity and an optical fiber ribbon having improved planarity are described. The method includes the steps of providing a plurality of optical fibers and arranging the plurality of optical fibers to form a planar optical fiber arrangement. The planar optical fiber arrangement defines a first common tangent plane and a second common tangent plane. Matrix material is applied to the planar optical fiber arrangement to form a first uncured layer of matrix material such that the first layer does not extend beyond the first or the second common tangent plane by more than twenty micrometers. The first uncured layer of matrix material is then cured to achieve a degree of cure between 70% and 95% to provide a cured first layer of matrix material on the planar arrangement. Next, matrix material is applied over the first cured layer to form a second uncured layer of matrix material. Finally, the second uncured layer is cured until a degree of cure in the second layer is at least 85% to form an optical fiber ribbon with improved planarity. The optical fiber ribbon of the present invention can be made according to the method described.

    摘要翻译: 描述了制造具有改善的平面性的光纤带的方法和具有改进的平面性的光纤带。 该方法包括提供多根光纤并布置多根光纤以形成平面光纤布置的步骤。 平面光纤布置限定第一公共切线平面和第二公共切线平面。 矩阵材料被施加到平面光纤布置以形成基体材料的第一未固化层,使得第一层不延伸超过第二或第二公共切线平面超过20微米。 然后将第一未固化的基体材料层固化以获得70%至95%之间的固化程度,以在平面布置上提供固化的第一基质材料层。 接下来,将基质材料施加在第一固化层上以形成基体材料的第二未固化层。 最后,第二未固化层固化直到第二层中的固化程度至少为85%,以形成具有改善的平面度的光纤带。 本发明的光纤带可以根据所述的方法制造。

    Optical drop cable for aerial installation
    4.
    发明授权
    Optical drop cable for aerial installation 有权
    光缆用于空中安装

    公开(公告)号:US06493491B1

    公开(公告)日:2002-12-10

    申请号:US09671747

    申请日:2000-09-28

    IPC分类号: G02B644

    CPC分类号: G02B6/4433 G02B6/4422

    摘要: An aerial drop cable comprises a jacket surrounding a cavity containing a least one loosely housed optical fiber and a pair of reinforcing members composed of a plurality of high modulus fibers such as polybenzoxazole (PBO) fibers. The cross-sectional area of the reinforcing members is larger than the cross-sectional area of the cavity so that the optical fiber disposed in the cavity is protected from lateral compressive forces. By utilizing reinforcing members which are composed of PBO fibers, the diameter of the reinforcing members is reduced as compared with conventional reinforcing members composed of aramid, metal or glass thereby providing a substantial reduction in the amount of jacketing material and the weight of the cable. Further, the bending strain of the cable utilizing PBO reinforcing members is substantially reduced for an equivalent bending radius as compared with cables utilizing conventional reinforcing members due to the smaller diameter of the reinforcing members. Therefore, the bending radius of the cable is reduced providing greater flexibility for routing the cable.

    摘要翻译: 航空电缆包括围绕包含至少一个松散容纳的光纤的腔的护套和由多个高模量纤维如聚苯并恶唑(PBO)纤维构成的一对加强构件。 加强构件的横截面面积大于空腔的横截面积,使得设置在空腔中的光纤被保护免受横向压缩力的影响。 通过使用由PBO纤维构成的加强构件,与由芳族聚酰胺,金属或玻璃构成的常规加强构件相比,加强构件的直径减小,从而大大减少了护套材料的数量和电缆的重量。 此外,由于加强构件的较小直径,与利用常规加强构件的电缆相比,利用PBO加强构件的电缆的弯曲应变基本上减小了等同的弯曲半径。 因此,电缆的弯曲半径减小,为电缆布线提供了更大的灵活性。