公开(公告)号：US07234881B2

公开(公告)日：2007-06-26

申请号：US09962246

申请日：2001-09-26

申请人： Rei Koike ,  Kenji Io ,  Tatsuo Saito ,  Tomomi Moriya ,  Yukio Nomura ,  Yoshiji Sato ,  Katsuichi Omori ,  Yoshiharu Meguro ,  Kazumasa Oishi ,  Keiji Osaka

发明人： Rei Koike ,  Kenji Io ,  Tatsuo Saito ,  Tomomi Moriya ,  Yukio Nomura ,  Yoshiji Sato ,  Katsuichi Omori ,  Yoshiharu Meguro ,  Kazumasa Oishi ,  Keiji Osaka

IPC分类号： G02B6/255

CPC分类号： G02B6/2558 ,  B29C45/0053 ,  B29C45/14549 ,  B29C2035/0827 ,  B29C2045/0075 ,  B29C2045/14557 ,  B29C2045/2671 ,  B29L2011/0075

摘要： A molding die 1 is constituted by an upper die 1a and a lower die 1b which are made of a material transparent to an ultraviolet light, and has a cavity 3 constituted by grooves 2c, 2d, whereas a resin injection gate 4 and a resin exit gate 7 are provided so as to communicate with the cavity 3. A junction of an optical fiber 10 is inserted into the cavity 3. A UV-curable resin is injected into the cavity 3 surrounding an exposing portion of the glass optical fiber 11 from the resin injection gate 4 positioned at one of coating ends of the optical fiber 10, whereas a part thereof is discharged from the resin exit gate 7 positioned at the other coating end. The ultraviolet light is emitted through the lower die 1b so as to cure the resin, thereby forming a reinforcement resin coating. As a consequence, bubbles can be prevented from occurring due to the residual air within the reinforcement resin coating in the junction of the optical fiber 10.

摘要翻译： 成形模1由上模1a和下模1b构成，该上模1a和下模1b由对紫外线透明的材料制成，并且具有由槽2c，2d组成的空腔3，而树脂注入口4 并且设置有树脂出口7以与空腔3连通。 将光纤10的接合部插入空腔3内。 将UV固化树脂从位于光纤10的一个涂层端部的树脂注入口4注入到围绕玻璃光纤11的露出部的空腔3内，其一部分从树脂出口 7位于另一个涂层端。 紫外线通过下模1b发射，以使树脂固化，由此形成增强树脂涂层。 结果，可以防止由于光纤10的接合处的增强树脂涂层中的残留空气而发生气泡。