发明名称 |
MANUFACTURE OF ROD IN TUBE OPTICAL FIBER |
摘要 |
A rod-in-tube method of manufacturing optical fibre where the rod and the tube are fed into the heating zone of a furnace at different rates, the rod feed rate being greater than the tube feed rate. The rod is mounted relative to the tube such as to permit self-centering of the rod in the tube when the tube collapses onto the rod in the heating zone. The drawn fibre may be monitored by means of an in-line fibre core to O/D monitor and feed-back employed to drive the tube and rod feed mechanisms accordingly thereby providing precise control of the core to O/D ratio of the fibre. Very long fibre lengths may be achieved by feeding the rod into the heating zone at a greater rate than a very large mass tube billet and consecutively feeding further rods into the tube billet as the preceding rod is used up. |
申请公布号 |
JPS60103046(A) |
申请公布日期 |
1985.06.07 |
申请号 |
JP19840217214 |
申请日期 |
1984.10.16 |
申请人 |
SUTANDAADO TEREFUONZU ANDO KEEBURUZU PLC |
发明人 |
ANDORIYUU PIITAA HARISON;MARUKORUMU DAMUKAN MATSUKEI |
分类号 |
G02B6/00;C03B37/012;C03B37/025;C03B37/027;C03C13/04 |
主分类号 |
G02B6/00 |
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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