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    • 58. 发明授权
    • Optical cable for holding optical fiber ribbons having a plurality of one groove spacers
    • 用于保持具有多个一个间隔物的光纤带的光缆
    • US06768845B1
    • 2004-07-27
    • US09505989
    • 2000-02-17
    • Yoshiyuki SuetsuguHiroki IshikawaHideyuki Iwata
    • Yoshiyuki SuetsuguHiroki IshikawaHideyuki Iwata
    • G02B644
    • G02B6/4411G02B6/4408G02B6/4409
    • An optical cable has a plurality of one-groove spacers 3 which are twisted in one direction around a central member 1. Anti-tensile elements 2 are arranged in the central portion of the central member 1. Each one-groove spacer having a single groove which is linear lengthwise and substantially square in cross section and holding a stack of a plurality of optical fiber ribbons 4. The inner width and the height of the side walls of the groove of the one-groove spacer are set greater than the diagonal length of the stack. Therefore, the transmission loss becomes reducible because the contact portions of the optical fiber ribbons with respect to the side walls of the grooves vary in the longitudinal direction, thus preventing a specific number of optical fibers from being continuously subjected to edgewise pressure.
    • 光缆具有围绕中心构件1沿一个方向扭转的多个单槽间隔件3.抗拉元件2布置在中心构件1的中心部分中。每个单槽间隔件具有单个槽 其横截面是线性的并且基本上是正方形并且保持多个光纤带4的堆叠。单槽间隔件的凹槽的侧壁的内部宽度和高度被设定为大于对角线长度 堆栈。 因此,由于光纤带的相对于槽的侧壁的接触部分在纵向方向上变化,所以传输损耗变得可以减小,从而防止特定数量的光纤连续地受到沿边压力的影响。