发明名称 |
PRODUCTION DEVICE AND METHOD FOR OPTICAL FIBER |
摘要 |
<p>A drawing apparatus 1 comprises a drawing furnace 11, a heating furnace 21, and a resin curing section 31. An optical fiber 3 drawn upon heating in the drawing furnace 11 is sent to a heating furnace 21, where a predetermined part of the optical fiber 3 is annealed at a predetermined cooling rate. The temperature of a heater 22 of the heating furnace 21 at the furnace center is set to a temperature within the range from 1200 to 1600 DEG C. Thereafter, the optical fiber 3 is coated with a UV resin liquid 52 by a coating die 51, and the UV resin 52 is cured in the resin curing section 31, so as to yield a coated optical fiber 4. <IMAGE></p> |
申请公布号 |
EP1205449(B1) |
申请公布日期 |
2013.09.25 |
申请号 |
EP20000929884 |
申请日期 |
2000.05.26 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
NAGAYAMA, KATSUYA;SAITO, TATSUHIKO;OHGA, YUICHI;KUWAHARA, KAZUYA |
分类号 |
C03B37/027;C03B37/029 |
主分类号 |
C03B37/027 |
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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