发明授权
- 专利标题： Optical fiber drawing furnace with a zig zag heating element
- 专利标题（中）： 光纤拉丝炉采用锯齿形加热元件
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申请号： US08674865申请日： 1996-07-03
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公开(公告)号： US06546760B1公开(公告)日： 2003-04-15
- 发明人: Ichiro Tsuchiya , Kohei Kobayashi , Hiroaki Ohta , Kazuya Kuwahara , Katsuyuki Tsuneishi , Hideo Miyaki , Yasuo Matsuda
- 申请人： Ichiro Tsuchiya , Kohei Kobayashi , Hiroaki Ohta , Kazuya Kuwahara , Katsuyuki Tsuneishi , Hideo Miyaki , Yasuo Matsuda
- 优先权： JP7-169930 19950705; JP8-015280 19960131
- 主分类号： C03B37029
- IPC分类号： C03B37029
摘要：
There is provided an optical fiber drawing furnace capable of drawing an optical fiber having small non circularity, which drawing furnace includes a muffle tube, in which an optical fiber preform is supplied, a heater surrounding the muffle tube, a plurality of electrode connecting portion extending from the heater, a plurality of electrodes connected to electrode connecting portions, and in conjunction therewith to an electric power source, and unifying means for unifying the temperature distribution along the circumferential direction.
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