Apparatus and method for processing a glass tube and glass tube obtained
    2.
    发明公开
    Apparatus and method for processing a glass tube and glass tube obtained 有权
    Vorrichtung und Verfahren zur Behandlung eines Glasrohres und das erhaltene Glasrohr

    公开(公告)号:EP1533283A3

    公开(公告)日:2006-04-26

    申请号:EP04027678.4

    申请日:2004-11-22

    IPC分类号: C03B37/018 C03B23/043

    摘要: In a glass processing method and apparatus according to the invention, in the case of performing chemical vapor deposition or diameter shrinkage of a substrate glass tube (G) by relatively moving a heating furnace (20) comprising a heating element (21) for annularly enclosing the circumference of the substrate glass tube in a longitudinal direction of the substrate glass tube (G) with respect to the substrate glass tube (G) in which an outer diameter is 30 mm or more and a wall thickness is 3 mm or more and is less than 15 mm and an ovality of the outer diameter is 1.0 % or less using a glass processing apparatus (1), a temperature of at least one of the heating element (21) and the substrate glass tube (G) is measured and the amount of heat generation of the heating element (21) is adjusted based on the measured temperature.
    The glass tube, processed by the method, of reduced ovality is also claimed.

    摘要翻译: 在根据本发明的玻璃加工方法和装置中,在通过相对移动包括用于环形封闭的加热元件(21)的加热炉(20)进行基板玻璃管(G)的化学气相沉积或直径收缩的情况下, 相对于外径为30mm以上且壁厚为3mm以上的基板玻璃管(G),基板玻璃管(G)的长度方向的基板玻璃管的周长为3mm以上 使用玻璃处理装置(1),小于15mm,外径的椭圆度为1.0%以下,测定加热元件(21)和基板玻璃管(G)中的至少一个的温度, 基于测量的温度来调节加热元件(21)的发热量。 还声称通过该方法处理的玻璃管具有减小的椭圆度。

    Apparatus and method for processing a glass tube and glass tube obtained
    4.
    发明公开
    Apparatus and method for processing a glass tube and glass tube obtained 有权
    Vorrichtung und Verfahren zur Behandlung eines Glasrohres

    公开(公告)号:EP1533283A2

    公开(公告)日:2005-05-25

    申请号:EP04027678.4

    申请日:2004-11-22

    IPC分类号: C03B37/018 C03B23/043

    摘要: In a glass processing method according to the invention, in the case of performing chemical vapor deposition or diameter shrinkage of a substrate glass tube G by relatively moving a heating furnace 20 comprising a heating element 21 for annularly enclosing the circumference of the substrate glass tube in a longitudinal directionof the substrate glass tube G with respect to the substrate glass tube G in which an outer diameter is 30 mm or more and a wall thickness is 3 mm or more and is less than 15 mm and an ovality of the outer diameter is 1.0 % or less using a glass processing apparatus 1, a temperature of at least one of the heating element 21 and the substrate glass tube G is measured and the amount of heat generation of the heating element 21 is adjusted based on the measured temperature.

    摘要翻译: 在根据本发明的玻璃加工方法和装置中,在通过相对移动包括用于环形封闭的加热元件(21)的加热炉(20)进行基板玻璃管(G)的化学气相沉积或直径收缩的情况下, 相对于外径为30mm以上且壁厚为3mm以上的基板玻璃管(G),基板玻璃管(G)的长度方向的基板玻璃管的周长为3mm以上 使用玻璃处理装置(1),小于15mm,外径的椭圆度为1.0%以下,测定加热元件(21)和基板玻璃管(G)中的至少一个的温度, 基于测量的温度来调节加热元件(21)的发热量。 还声称通过该方法处理的玻璃管具有减小的椭圆度。

    Optical fiber and method of manufacturing the same
    5.
    发明公开
    Optical fiber and method of manufacturing the same 失效
    光纤和它们的制备方法

    公开(公告)号:EP0729919A2

    公开(公告)日:1996-09-04

    申请号:EP96103134.1

    申请日:1996-03-01

    IPC分类号: C03B37/027 C03B37/03 G02B6/10

    摘要: An optical fiber is rolled by a swing motion of a swing guide roller (220) in order to impart a predetermined twist to it effectively, and its polarization dispersion is suppressed equivalently as in a perfectly circular concentric optical fiber. A method of manufacturing such an optical fiber is also provided. As a swing guide roller (220) swings, the optical fiber is rolled on its roller surface, so that a clockwise twist and a counterclockwise twist are imparted to the optical fiber alternately. At this time, the optical fiber is fitted in a V-shaped narrow groove formed at the central portion of the roller surface of a next-stage first stationary guide roller (231) provided just beside the swing guide roller (220). Rolling of the optical fiber on the roller surface of the first stationary guide roller (231) is suppressed, thereby helping smooth rolling of the optical fiber on the roller surface of the swing guide roller (220). As a result, a twist can be imparted to the optical fiber highly efficiently in accordance with the swing speed of the swing guide roller (220).