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    • 1. 发明授权
    • Methods of adjusting the configuration of optical substrates
    • 调整光学基板结构的方法
    • US4875916A
    • 1989-10-24
    • US247984
    • 1988-09-22
    • Gary L. BaltzerBrian LynchWilliam D. O'Brien, Jr.
    • Gary L. BaltzerBrian LynchWilliam D. O'Brien, Jr.
    • C03B23/055C03B37/012
    • C03B37/01225C03B23/055Y02P40/57
    • In order to provide a substrate such as an optical preform rod (24) which suitable for insertion into a tube and which has a transverse cross section that is substantially circular and disposed concentrically about a longitudinal axis of the substrate substantially along its entire length, a force-applying means such as a graphite roller (52) is adapted to be moved incrementally toward an axis of rotation (35) about which the preform rod is turned rotatably. Movement is discontinued when there is an indication that the force-applying means has been in continuous engagement with the preform rod for at least a predetermined portion of the periphery of the rod. In a preferred embodiment, the engagement of the force-applying means and the preform rod is discontinued after a predetermined time whereafter the force-applying means again is moved toward the axis of rotation. Cycles of engagement and disengagement are continued as relative motion is caused between the force-applying means and the preform rod in a direction along the axis of rotation.
    • 为了提供一种诸如光学预成型棒(24)的基底,其适于插入管中,并且具有基本上圆形并且基本上沿着其整个长度围绕基底的纵向轴线同心地布置的横截面, 诸如石墨辊(52)的施力装置适于逐渐地朝向旋转轴线(35)移动,预成型杆可围绕该旋转轴转动。 当指示力施加装置已经与杆的至少预定部分的预成型棒连续接合时,停止运动。 在一个优选实施例中,施力装置和预制棒之间的接合在预定时间之后停止,之后施力装置再次朝向旋转轴线移动。 在施力装置和预制棒之间沿沿着旋转轴线的方向产生相对运动,因此继续进行接合和脱离的循环。
    • 3. 发明授权
    • Apparatus for adjusting the configuration of optical substrates
    • 用于调整光学基板的构造的装置
    • US5030266A
    • 1991-07-09
    • US409551
    • 1989-09-19
    • Gary L. BaltzerBrian LynchWilliam D. O'Brien, Jr.
    • Gary L. BaltzerBrian LynchWilliam D. O'Brien, Jr.
    • C03B23/055C03B37/012
    • C03B23/055C03B37/01225Y02P40/57
    • In order to provide a substrate such as an optical preform rod (24) which is suitable for insertion into a tube and which has a transverse cross section that is substantially circular and disposed concentrically about a longitudinal axis of the substrate substantially along its entire length, a force-applying member such as a graphite roller (52) is moved incrementally toward an axis of rotation (35) about which the preform rod is turned rotatably. Movement is discontinued when there is an indication that the force-applying member has been in continuous engagement with the preform rod for at least a predetermined portion of the periphery of the rod. In a preferred embodiment, the engagement of the force-applying member and the preform rod is discontinued after a predetermined time whereafter the force-applying member again is moved toward the axis of rotation. Cycles of engagement and disengagement are continued as relative motion is caused between the force-applying member and the preform rod in a direction along the axis of rotation.
    • 为了提供一种诸如光学预成型棒(24)的基底,其适于插入管中,并且具有基本上圆形并且基本上沿着其整个长度围绕基底的纵向轴线同心地布置的横截面, 诸如石墨辊(52)的施力部件朝向旋转轴线35逐渐移动,预定棒可绕其转动旋转。 当存在施力部件已经与杆的周边的至少预定部分已经与预成型棒连续接合的指示时,停止运动。 在优选实施例中,在预定时间之后,力施加构件和预制棒的接合停止,然后施力构件再次朝向旋转轴线移动。 在沿着旋转轴线的方向上在力施加构件和预成型杆之间产生相对运动的情况下,继续进行接合和脱离的循环。
    • 4. 发明授权
    • Methods of and apparatus for at least partially closing an end portion
of an optical preform tube
    • 用于至少部分地封闭光学预制管的端部的方法和装置
    • US4601740A
    • 1986-07-22
    • US682975
    • 1984-12-18
    • Brian LynchWilliam D. O'Brien, Jr.
    • Brian LynchWilliam D. O'Brien, Jr.
    • C03B23/055C03B37/018C03B37/025
    • C03B23/055C03B37/01869
    • A preform from which lightguide fiber is drawn is made by depositing optically suitable layers of doped silicon dioxide on an inner wall of a rotating glass tube (31) which is exposed to a moving zone of heat (56) which is provided by a torch assembly (50) during a deposition mode and during a collapse mode. After the deposition mode and generally prior to the collapse mode, one end portion of the tube is at least partially closed in order to allow pressurizing of the tube during collapse. This is accomplished with a pivotally mounted tool (70) which straddles the torch assembly to cause an internally water cooled contact device (92) to be disposed within the confines of the torch. Further, the contact device is configured to provide a curved lead-in from the tube to the at least partially closed portion. The use of separate apparatus for initially closing the tube provides control of the sealed-off portion and prevents an irregular cross-section from being propagated along the length of the tube.
    • 通过在旋转的玻璃管(31)的内壁上沉积光学上适当的掺杂二氧化硅层来制造光导纤维,预制件暴露于由火炬组件(56)提供的移动热区(56) (50)在沉积模式期间和在崩溃模式期间。 在沉积模式之后并且通常在塌缩模式之前,管的一个端部至少部分封闭,以便在塌缩期间使管加压。 这是通过一个枢转安装的工具(70)实现的,该工具跨越炬组件以使内部水冷的接触装置(92)设置在炬的范围内。 此外,接触装置构造成提供从管到弯曲的引入到至少部分闭合的部分。 使用分离的设备来初始关闭管子提供对密封部分的控制,并且防止不规则的横截面沿管的长度传播。