发明名称 |
VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN EINER VORFORM FÜR OPTISCHE FASERN |
摘要 |
<p>A method of manufacturing a preform, the method comprising rotating a primary preform about an axis X, establishing relative displacement in translation between the preform and a plasma torch, and introducing a glass powder into the plasma flame, the glass powder being accelerated prior to penetrating into the plasma flame by an accelerator gas introduced into the flow of glass powder, said process being performed in an enclosure and said introduction being performed into an atmosphere at a regulated pressure lower than the pressure outside the enclosure. Apparatus for manufacturing the preform comprises an enclosure connected to a unit for regulating the pressure inside the enclosure.</p> |
申请公布号 |
AT255541(T) |
申请公布日期 |
2003.12.15 |
申请号 |
AT20010401943T |
申请日期 |
2001.07.19 |
申请人 |
ALCATEL |
发明人 |
LAVANANT, GERARD;GOUEZ, BENOIT;PETITFRERE, EMMANUEL |
分类号 |
C03B37/012;(IPC1-7):C03B37/012 |
主分类号 |
C03B37/012 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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