发明名称 |
Werkwijze voor het vervaardigen van een massieve voorvorm. |
摘要 |
The present invention relates to a method of manufacturing a solid preform by moving a heat source parallel to the longitudinal axis of a substrate tube, whose inner surface is coated with one or more doped or undoped glass layers, so as to collapse the substrate tube into the solid preform in a number of passes, with an etchant being supplied to the interior of the substrate tube after a number of passes of the heat source. |
申请公布号 |
NL1020781(C2) |
申请公布日期 |
2003.12.09 |
申请号 |
NL20021020781 |
申请日期 |
2002.06.06 |
申请人 |
DRAKA FIBRE TECHNOLOGY B.V. |
发明人 |
MARTINUS JOHANNES MARINUS JOZEPH SWARTS;DENNIS ROBERT SIMONS |
分类号 |
C03B8/04;C03B37/018;(IPC1-7):C03B37/018 |
主分类号 |
C03B8/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|