Plastic optical fiber preform and production method thererof
    1.
    发明申请
    Plastic optical fiber preform and production method thererof 审中-公开
    塑料光纤预制棒及其制作方法

    公开(公告)号:US20090098401A1

    公开(公告)日:2009-04-16

    申请号:US11919755

    申请日:2006-05-22

    IPC分类号: G02B6/028

    摘要: A cylindrical preform (11) is drawn in its longitudinal direction to be a plastic optical fiber (21) by a drawing process (27). The preform (11) is produced by polymerizing an inner clad material in a hollow portion of an outer clad pipe (23) to form an inner clad (15), and then polymerizing a core material in a hollow portion of the inner clad (15) to form a core (12). After the polymerization of the inner clad material, the outer clad pipe (23) is subject to a heating under reduced pressure (25) to reduce penetration of the inner clad material into the outer clad pipe (23), such that a concentration of the inner clad material and its polymer penetrated in said outer shell is no more than 1.6 wt. %. Accordingly, an unevenness viscosity of the melted preform (11) for the drawing is reduced and the obtained plastic optical fiber (21) has an uniform transmission property.

    摘要翻译: 圆柱形预制件(11)通过拉伸工艺(27)在其纵向上被拉伸成塑料光纤(21)。 预成型体(11)通过在外包层管(23)的中空部聚合内包层材料而形成内包层(15),然后在内包层(15)的中空部分中聚合芯材 )以形成芯(12)。 在内包层材料的聚合之后,外包层管(23)在减压(25)下进行加热,以减少内包层材料渗透到外包层管(23)中,从而使 渗透在所述外壳中的内包层材料及其聚合物不超过1.6重量%。 %。 因此,熔化的预成型体(11)的拉伸不均匀性降低,所得到的塑料光纤(21)具有均匀的透射性。

    PRODUCTION METHOD OF PREFORM OF PLASTIC OPTICAL MEMBER AND PLASTIC OPTICAL FIBER
    2.
    发明申请
    PRODUCTION METHOD OF PREFORM OF PLASTIC OPTICAL MEMBER AND PLASTIC OPTICAL FIBER 审中-公开
    塑料光学部件和塑料光纤的制造方法

    公开(公告)号:US20090238525A1

    公开(公告)日:2009-09-24

    申请号:US11910262

    申请日:2006-03-28

    IPC分类号: G02B6/032 C03B37/027

    摘要: Polymerizable composition, whose main component is MMA, is injected into a clad tube (12) of PVDF. Then the clad tube (12) is inserted into a polymerization reactor (33). Three heaters (35a to 35c) are arranged along the longitudinal direction of the polymerization reactor (33). The set temperature of the heater (35a) at the left is 56° C., that of the heater (35b) at the center is 58° C., and that of the heater (35c) at the right is 60° C. The polymerization reaction is performed with rotating drive rolls (34) at 500 rpm to 3000 rpm. As a result, an inner clad layer (40) with constant thickness, whose main component is PMMA, is formed. A core (41) is formed inside the inner clad layer (40) to obtain a preform (16). The preform (16) is drawn to be a POF (18) having a constant diameter.

    摘要翻译: 其主要成分为MMA的可聚合组合物注入到PVDF的复合管(12)中。 然后将复合管(12)插入聚合反应器(33)中。 三个加热器(35a〜35c)沿聚合反应器(33)的长度方向排列。 左侧的加热器(35a)的设定温度为56℃,中央的加热器(35b)的设定温度为58℃,右侧的加热器(35c)的设定温度为60℃。 聚合反应用旋转驱动辊(34)以500rpm至3000rpm进行。 结果,形成了其主要成分为PMMA的具有恒定厚度的内包层(40)。 在内包层(40)内部形成芯(41),以获得预制件(16)。 预成型件(16)被拉伸成具有恒定直径的POF(18)。