公开(公告)号：US06533469B1

公开(公告)日：2003-03-18

申请号：US09637455

申请日：2000-08-11

申请人： Noboru Nakamura ,  Masayuki Yamahiro

发明人： Noboru Nakamura ,  Masayuki Yamahiro

IPC分类号： G02B636

CPC分类号： G02B6/3837 ,  G02B6/3821 ,  G02B6/3825 ,  G02B6/3833 ,  G02B6/3861 ,  G02B6/3865

摘要： The ferrule of the prior art requires an assembling process, high accuracy machining of the fitting portion, machining of the insert to achieve concentricity, machining of the cone and machining of the outer diameter with a high accuracy. This has been making a factor that increases the production cost of the ferrule which is required to have lower price. The present invention provides an ferrule comprising an insert of substantially cylindrical shape that has a fine hole for housing an optical fiber in the axial direction, and an ferrule body made of a resin for accepting the insert fitted therein, characterized in that: the ferrule body has a through hole made in the axial direction thereof, and the through hole communicates with the fine hole of the insert via a tapered hole, with concentricity between the fine hole of the insert and the periphery of the ferrule body being within 10 &mgr;m.

摘要翻译： 现有技术的套管需要组装过程，装配部分的高精度加工，插入件的加工以实现同心度，锥体的加工和高精度的外径加工。 这已经成为增加套件的生产成本的因素，这需要具有较低的价格。 本发明提供一种套筒，其包括具有用于沿轴向容纳光纤的细孔的大致圆筒形状的插入件，以及由用于接纳嵌入其中的插入件的树脂制成的套圈主体，其特征在于，所述套圈体 具有沿其轴向形成的通孔，并且通孔经由锥形孔与插入件的细孔连通，插入件的细孔与套圈本体的周边之间的同心度在10um以内。