发明授权
- 专利标题: Apparatus for fabricating an optical fiber
- 专利标题(中): 光纤制造装置
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申请号: US12189440申请日: 2008-08-11
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公开(公告)号: US08322165B2公开(公告)日: 2012-12-04
- 发明人: Tetsuya Otosaka , Yoshiaki Shimizu
- 申请人: Tetsuya Otosaka , Yoshiaki Shimizu
- 申请人地址: JP Tokyo
- 专利权人: Shin-Etsu Chemical Co., Ltd.
- 当前专利权人: Shin-Etsu Chemical Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Westerman, Hattori, Daniels & Adrian, LLP
- 优先权: JP2007-210173 20070810
- 主分类号: C03B37/029
- IPC分类号: C03B37/029
摘要:
In an apparatus for fabricating an optical fiber, the apparatus includes a drawing furnace provided with an insertion opening for receiving an optical fiber perform, a feed mechanism configured to support one end of the optical fiber preform so as to feed into the drawing furnace, a first sealing unit configured to seal a clearance gap between the optical fiber preform and the insertion opening, and a second sealing unit configured to seal a gap between the optical fiber preform and the first sealing unit when a tapered portion formed at the one end side of the optical fiber preform passes through the insertion opening. As a result, the available entirety of the optical fiber preform can be changed to an optical fiber, so that the cost for fabricating the optical fiber can be significantly reduced.