发明名称 |
FERRULE HOLDING MEMBER FOR OPTICAL RECEPTACLE, METHOD OF MANUFACTURING THE FERRULE HOLDING MEMBER, AND OPTICAL RECEPTACLE USING THE FERRULE HOLDING MEMBER |
摘要 |
<p>[Object] To provide a ferrule holding member for an optical receptacle or the like which can be manufactured at low cost, which has a small insertion loss, which has a convex curved surface connected to an end face of the ferrule on a tip side formed easily to have appropriate shape and properties, and which has hardly reduced coupling efficiency. [Solving Means] A ferrule holding member 3 has a transparent body 5 attached to an inner hole of a sleeve 4, and the transparent body 5 has a primary end face 5a for bringing into contact with an end face 6a of a plug ferrule 6 at a halfway position in an axial direction of the sleeve 4. The primary end face 5a of the transparent body 5 has a convex curved surface obtained through heat treatment. The convex curved surface 5a is preferably an unpolished surface, and a region with a radius of 75 µm or more centered around a shaft axis Z of the sleeve 4 at the convex curved surface 5a has a convex spherical surface. Alternatively, the transparent body 5 is directly fixed to an inner surface of the sleeve 4 through heat treatment.</p> |
申请公布号 |
EP1767970(A1) |
申请公布日期 |
2007.03.28 |
申请号 |
EP20050757799 |
申请日期 |
2005.07.06 |
申请人 |
TOTO LTD.;NIPPON ELECTRIC GLASS CO., LTD. |
发明人 |
ISHIDA, CHISAMI;OKUMURA, HIROSHI;TAKEUCHI, HIROKAZU;WADA, MASANORI |
分类号 |
G02B6/38;G02B6/32;G02B6/42 |
主分类号 |
G02B6/38 |
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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