发明名称 |
Optical fiber preform manufacturing method for shrinkage and closing of deposited tube |
摘要 |
An optical fiber preform manufacturing method whereby a clad layer and core layer are deposited on the inner surface of a preform tube for forming a deposited tube. One end of the deposited tube is shrunk and closed. The deposited tube which has a closed end is arranged extending vertically through a circular heater. A heat is applied to the deposited tube at a temperature lower than the softening point of a deposited tube, exhausting contaminants existing in the interior of the deposited tube while moving the circular heater. The heating temperature of the circular heater is then set to a temperature not lower than the softening point of the deposited tube-to shrink and close the deposited tube.
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申请公布号 |
US6840063(B2) |
申请公布日期 |
2005.01.11 |
申请号 |
US20020059342 |
申请日期 |
2002.01.31 |
申请人 |
SAMSUNG ELECTRONCIS CO., LTD |
发明人 |
OH SUNG-KOOG;SEO MAN-SEOK;YANG JIN-SEONG;DO MUN-HYUN |
分类号 |
C03B37/027;C03B37/012;C03B37/018;G02B6/00;(IPC1-7):C03B37/018 |
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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