发明名称 |
Crucible for the production of single-material light-guiding fibers |
摘要 |
A method for the production of single-material light-guiding fibers which have a core supported in a glass sheath in a cantilever manner by glass webs characterized by providing a crucible having an exit nozzle with an opening having a configuration of the cross section of the light-guiding fiber with a core portion connected by web portions to a surrounding annular portion, providing molten material of the light-guiding fiber in the crucible, drawing the molten material from the crucible through the exit nozzle to form a continuous integral workpiece having a core portion supported in a glass sheath in a cantilever manner by integral glass webs and continuously drawing the integral workpiece into the single-material light-guiding fiber. The crucible is formed by a pair of hollow bodies supported in an outer cylindrical member in a cantilever manner so that the cylindrical member and the pair of hollow bodies form the exit nozzle with the desired configuration.
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申请公布号 |
US4131447(A) |
申请公布日期 |
1978.12.26 |
申请号 |
US19770761267 |
申请日期 |
1977.01.21 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
AULICH, HUBERT;GRABMAIER, JOSEF |
分类号 |
C03B37/023;(IPC1-7):C03B5/26;C03B37/00 |
主分类号 |
C03B37/023 |
代理机构 |
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代理人 |
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