JPS61155807U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案実施例の断面図、第２図は上記
実施例の接続状態を示す説明図、第３図は上記実
施例の接続部分の断面図。第４図は上記実施例の
研磨誤差を含む接続部分の断面図。第５図は従来
例構造の断面図。第６図は従来例構造の接続部分
の断面図。 １……フエルール、２……キヤピラリ、３……
光フアイバ、４……光フアイバの素線、５……光
フアイバの被覆、６……アダプタ、ｌ……キヤピ
ラリの端面がフエルールの端面より突出している
寸法、ｔ……素線端面の相互間隔。 FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the connection state of the above embodiment, and FIG. 3 is a sectional view of the connection portion of the above embodiment. FIG. 4 is a cross-sectional view of the connection portion including polishing errors in the above embodiment. FIG. 5 is a sectional view of a conventional structure. FIG. 6 is a sectional view of a connecting portion of a conventional structure. 1...Ferrule, 2...Capillary, 3...
Optical fiber, 4... Optical fiber strand, 5... Optical fiber coating, 6... Adapter, l... Dimension in which the end face of the capillary protrudes from the end face of the ferrule, t... Mutual spacing between the end faces of the strand .

Claims (1)

【実用新案登録請求の範囲】 (1) 端部の被覆が除去された光フアイバの素線
の部分を覆うキヤピラリと、 このキヤピラリおよび上記光フアイバの被覆部
分が内装される金属製円筒状のフエルールと を含み、上記キヤピラリの接続端が上記光フアイ
バの素線と面一になるように加工された接続具が
２個それぞれの接続端を対向されて配置され、 この２個の接続具は各光フアイバの素線が同一
光軸上に配列されるように上記２個のフエルール
に共通に取付けられる接続手段を備えた 光フアイバの接続構造において、 上記キヤピラリの接続端が上記フエルールの接
続端よりわずかに突出した構造を特徴とする光フ
アイバの接続構造。 (2) キヤピラリがガラス材で構成された実用新
案登録請求の範囲第(1)項に記載の光フアイバの
接続構造。 (3) ガラス材は耐熱結晶化ガラスである実用新
案登録請求の範囲第(2)項に記載の光フアイバの
接続構造。 (4) キヤピラリの接続端がフエルールの接続端
より、５０μｍないし２mm突出した実用新案登録
請求の範囲第(1)項に記載の光フアイバの接続構
造。 (5) ２個のフエルールに共通に取付けられる接
続手段は、フエルールを内挿する一つの金属円筒
である実用新案登録請求の範囲第(1)項に記載の
光フアイバの接続構造。[Claims for Utility Model Registration] (1) A capillary that covers the strand of the optical fiber from which the end coating has been removed, and a metal cylindrical ferrule in which the capillary and the coated portion of the optical fiber are housed. and two connecting fittings processed so that the connecting ends of the capillary are flush with the strands of the optical fiber are disposed with their respective connecting ends facing each other, and these two connecting fittings are each In an optical fiber connection structure, the connection end of the capillary is closer to the connection end of the ferrule than the connection end of the ferrule. Optical fiber connection structure featuring a slightly protruding structure. (2) The optical fiber connection structure according to claim (1) of the utility model registration, in which the capillary is made of a glass material. (3) The optical fiber connection structure according to claim (2) of the utility model registration, wherein the glass material is heat-resistant crystallized glass. (4) The optical fiber connection structure according to claim (1), in which the connection end of the capillary protrudes 50 μm to 2 mm from the connection end of the ferrule. (5) The optical fiber connection structure according to claim (1), wherein the connection means commonly attached to the two ferrules is a single metal cylinder into which the ferrules are inserted.