JPS59160111A - Optical connector - Google Patents
Optical connectorInfo
- Publication number
- JPS59160111A JPS59160111A JP3293383A JP3293383A JPS59160111A JP S59160111 A JPS59160111 A JP S59160111A JP 3293383 A JP3293383 A JP 3293383A JP 3293383 A JP3293383 A JP 3293383A JP S59160111 A JPS59160111 A JP S59160111A
- Authority
- JP
- Japan
- Prior art keywords
- ferrule
- elastic
- adapter
- optical connector
- optical element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
Abstract
Description
【発明の詳細な説明】
（、） 発明の技術分野
本発明は光通信装置等で用いる発光素子あるいは受光素
子と光ファイバとを光学的に結合するだめの光コネクタ
に関するものである。TECHNICAL FIELD OF THE INVENTION The present invention relates to an optical connector for optically coupling an optical fiber to a light emitting element or a light receiving element used in an optical communication device or the like.
（ｂ） 技術の背景
発光素子あるいは受光素子等の元素子と光ファイバとを
光学的に結合するための光コネクタは、光素子を収容し
たアダプタと、光フアイバ端部に設けた差込みフェルー
ルからなるプラグにより構成される。このような光コネ
クタは、結合の操作性が良好であることが要求され、ま
た組立製造作業が容易であることが望ましい。(b) Background of the technology An optical connector for optically coupling an element such as a light-emitting element or a light-receiving element with an optical fiber consists of an adapter that accommodates an optical element and an insertion ferrule provided at the end of the optical fiber. Consists of a plug. Such optical connectors are required to have good coupling operability, and are desirably easy to assemble and manufacture.
（Ｃ）従来技術と問題点
従来の光コネクタのアダプタとプラグとの結合は、プラ
グの差込みフェルールをアダプタに挿入後プラグ側に設
けたカップリングナツトをアタ゛ブタに螺合させること
により相互に固定するネノ式結合、あるいはプラグを挿
入後回転させてロックするＢＮＣ結合等により行なわれ
ていた。しかしながら、このよう々結合方式は操作性が
悪く、′−１だ構造が複雑となり組立製造作業が面倒に
なるものであった。(C) Conventional technology and problems The adapter and plug of a conventional optical connector are connected to each other by inserting the plug ferrule into the adapter and then screwing the coupling nut provided on the plug side into the adapter. This was done using the Neno type connection or the BNC connection in which the plug was inserted and then rotated to lock. However, such a coupling method has poor operability, and the structure becomes complicated, making assembly and manufacturing work troublesome.
（ｄ） 発明の目的
本発明は上記従来技術の欠点に鑑みなされたものであっ
て、簡単な構造で組立作業を容易にし、結合の操作性を
良好にした光コネクタの提供を目的とする。(d) Object of the Invention The present invention was made in view of the above-mentioned drawbacks of the prior art, and it is an object of the present invention to provide an optical connector that has a simple structure, facilitates assembly work, and improves the operability of connection.
（ｅ） 発明の構成
この目的を達成するため、本発明では光素子を収容した
アダフ０夕と、光フアイバ端部に設けた差込みフェルー
ルからなるプラグにより構成した光コネクタにおいて、
上記差込みフェルール上に拡大部を設け、上記アダプタ
に該拡大部が当接するストン・平部を設けるとともに該
拡大部を外側周囲より弾発的に固定保持するための弾性
片を備えている。(e) Structure of the Invention In order to achieve this object, the present invention provides an optical connector constituted by an adapter accommodating an optical element and a plug consisting of an insertion ferrule provided at the end of an optical fiber.
An enlarged part is provided on the insertion ferrule, and the adapter is provided with a flat part on which the enlarged part abuts, and is also provided with an elastic piece for resiliently fixing and holding the enlarged part from the outer periphery.
（ｆ） 発明の実施例
第１図は本発明に係る光コネクタの斜視図、第２図はそ
の結合状態の断面図である。光素子７を収容したアダプ
タ２に光ファイバ４の端部に設けたプラグ１が装着され
る。プラグ１の先端には光ファイバ４の芯線１８（第２
図）を内部に保持した差込みフェルール５が備わる。差
込みフェルール５上には拡大部１９が形成される。アダ
プタ２は、差込みフェルール５が挿入される円筒スリー
ブ２４を有し、この円筒スリーブ２４の先翅は差込みフ
ェルール５の拡大部１９が当接するストン・モ２６とな
る。この円筒スリーブ２４の長さ、即ちストン・９２６
の位置は、差込みフェルール５の先端と光素子７の端面
間距離が最適の結合効率となるように予め設定しておく
。円筒スリーブ２４の外周には複数１固の弾性片６が備
わる。この弾性片６はその先端部内面に差込みフェルー
ル５の拡大部１９を保持するだめの突起２３を有する。(f) Embodiment of the Invention FIG. 1 is a perspective view of an optical connector according to the present invention, and FIG. 2 is a sectional view of the optical connector in a coupled state. A plug 1 provided at the end of an optical fiber 4 is attached to an adapter 2 that accommodates an optical element 7. At the tip of the plug 1 is a core wire 18 (second
A plug-in ferrule 5 is provided, which holds the ferrule (Fig.) inside. An enlarged portion 19 is formed on the insertion ferrule 5. The adapter 2 has a cylindrical sleeve 24 into which the insertion ferrule 5 is inserted, and the tip of this cylindrical sleeve 24 becomes a strut 26 against which the enlarged portion 19 of the insertion ferrule 5 comes into contact. The length of this cylindrical sleeve 24 is 926 mm.
The position of is set in advance so that the distance between the tip of the insertion ferrule 5 and the end face of the optical element 7 provides optimum coupling efficiency. A plurality of elastic pieces 6 are provided on the outer periphery of the cylindrical sleeve 24 . The elastic piece 6 has a protrusion 23 on the inner surface of its tip portion for inserting and holding the enlarged portion 19 of the ferrule 5.
差込みフェルール５の挿入動作に伴い、この弾性片６は
押開かれ拡大部１９がストッパ２６に当接すると突起２
３を介してその弾性力により拡大部１９を固定保持する
。With the insertion operation of the insertion ferrule 5, this elastic piece 6 is pushed open, and when the enlarged part 19 comes into contact with the stopper 26, the protrusion 2
3, the enlarged portion 19 is fixedly held by its elastic force.
光素子７を収容するアダシタ本体３の内面には光素子７
を弾発的に保持するための弾性リブ１０（第３図）が備
わる。この弾性リブ１０は本体３、弾性片６および円筒
スリーブ２４等とともにプラスチックモールドにより一
体成形される。光素子７は本体３の後面より内部に差込
むことにより弾性リブ１０の弾性力により本体３内に固
定保持される。光素子７の端子９は本体３の床に・設け
た溝８内に挿入される。The optical element 7 is located on the inner surface of the adapter main body 3 that accommodates the optical element 7.
It is provided with elastic ribs 10 (Fig. 3) for elastically holding it. The elastic rib 10 is integrally formed with the main body 3, elastic piece 6, cylindrical sleeve 24, etc. by plastic molding. By inserting the optical element 7 into the interior of the main body 3 from the rear surface, the optical element 7 is fixedly held within the main body 3 by the elastic force of the elastic ribs 10. The terminals 9 of the optical element 7 are inserted into grooves 8 provided in the floor of the main body 3.
光素子７を弾性的に保持する手段として、第４図に示す
ように、本体３自体にスリット１１を設けてもよい。光
素子７の装着状態の水平断面図を第５図に示す。光素子
７のフランジ部】５が本体３の円形押え部１４により弾
発的に固定される。As a means for elastically holding the optical element 7, a slit 11 may be provided in the main body 3 itself, as shown in FIG. A horizontal cross-sectional view of the optical element 7 in a mounted state is shown in FIG. The flange portion 5 of the optical element 7 is elastically fixed by a circular holding portion 14 of the main body 3.
本体３はカバー１３で覆ってもよい。】２は端子貫通孔
である。The main body 3 may be covered with a cover 13. ] 2 is a terminal through hole.
光素子７を固定するさらに別の手段を第６図に示す。光
素子７を本体３内に挿入後挿入部周囲の突片２５を加熱
して内側（矢印方向）に屈曲させて光素子７のフランツ
部１５をかしめ固定する。Yet another means for fixing the optical element 7 is shown in FIG. After the optical element 7 is inserted into the main body 3, the protrusion 25 around the insertion part is heated and bent inward (in the direction of the arrow), and the flannel part 15 of the optical element 7 is caulked and fixed.
プラグ１をアダプタ２に挿入していない状態ではファイ
バ端面を保護するために第７図に示すように差込みフェ
ルール５上にキャンプ１６を装着する。このキャップ１
６の構造はアダプタ２の本体３に設けた弾性片６および
円筒スリーブ２４とほぼ同様であり、第８図に示すよう
に、走込みフェルール５が挿入される中空円ｉＲｊスリ
ーブ２１およびその周囲の弾性片１７により構成される
。弾性片１７０元端には突起２０が形成され円筒スリー
ブ２１の先端に当接した差込みフェル−ル５の拡大部１
９を弾発的に固定保持する。When the plug 1 is not inserted into the adapter 2, a camp 16 is mounted on the insertion ferrule 5 as shown in FIG. 7 to protect the fiber end face. This cap 1
The structure of 6 is almost the same as that of the elastic piece 6 and the cylindrical sleeve 24 provided on the main body 3 of the adapter 2, and as shown in FIG. It is composed of an elastic piece 17. A protrusion 20 is formed at the base end of the elastic piece 170, and the enlarged portion 1 of the insertion ferrule 5 contacts the tip of the cylindrical sleeve 21.
9 is elastically fixed and held.
（ｇ） 発明の効果
本発明に係る光コネクタはゾラスチ、クモールドにより
形成することができ、ネジ等の結合機構を設けることな
くゾラスチ、りの弾性によりスナップ式にアダプタとプ
ラグあるいはキャップとプラグとを結合することができ
操作性が良好となるＯまた、アダプタおよびキー？ツブ
の円筒スリーブ（２４，２１）の先端がプラグ拡大部の
ストン・ぐとなり光フアイバ先端面の位置決めが容易に
確実に行なわれる。またアダプタ内に収容される光素子
を弾性的に固定保持できるため元素子の挿入動作のみで
アダプタと光素子の組立て作業が冗成し作業性が向上す
る。(g) Effects of the Invention The optical connector according to the present invention can be formed by using Zorasti or Kumold, and the adapter and the plug or the cap and the plug can be connected in a snap manner by the elasticity of the Zorasti without providing a coupling mechanism such as a screw. Can also be combined with an adapter and key for better operability? The tips of the cylindrical sleeves (24, 21) of the tabs are in contact with the enlarged portion of the plug, so that the tip surface of the optical fiber can be easily and reliably positioned. Further, since the optical element housed in the adapter can be elastically fixed and held, the assembly work of the adapter and the optical element is redundant by only the operation of inserting the element, thereby improving work efficiency.
第１図は本発明に係る光コネクタの斜視図、第２図は第
１図の光コネクタの結合時の断面図、第３図は第１図の
光コネクタの光素子装着前の■方向矢視図、第４図は本
発明に係るアダプタの別の例の斜視図、第５図は第４図
のアダプタの水平断面図、第６図は光素子固定方法の別
の例を示す説明図、第７図はプラグ保護用キャップの斜
視図、第８図は第７図のキャップ装着時の断面図である
。
１・・・プラグ、２・・・アダプタ、３ ・本体、４・
・・光ファイバ、５・・差込みフェルール、６・・・弾
性片、７・・・光素子、１０・・・弾性リブ、１９・・
・拡大部、２４・・・円筒スリーブ、２６・・・ストッ
ｉ９゜特許出願人
富士通株式会社
特許出願代理人
弁理士 青 木 朗
弁理士 西 舘 和 之
弁理士 内 １）幸 男FIG. 1 is a perspective view of the optical connector according to the present invention, FIG. 2 is a sectional view of the optical connector in FIG. 1 when coupled, and FIG. 3 is the optical connector in FIG. 4 is a perspective view of another example of the adapter according to the present invention, FIG. 5 is a horizontal sectional view of the adapter of FIG. 4, and FIG. 6 is an explanatory diagram showing another example of the optical element fixing method. , FIG. 7 is a perspective view of the plug protection cap, and FIG. 8 is a sectional view when the cap shown in FIG. 7 is attached. 1...Plug, 2...Adapter, 3・Main body, 4・
...Optical fiber, 5. Insertion ferrule, 6. Elastic piece, 7. Optical element, 10. Elastic rib, 19..
・Enlarged part, 24...Cylindrical sleeve, 26...Stock i9゜Patent applicant Fujitsu Limited Patent application agent Akira Aoki Patent attorney Kazuyuki Nishidate Patent attorney 1) Yukio
Claims (1)
けた差込みフェルールからなるプラグにより構成した光
コネクタにおいて、上記差込みフェルール上に拡大部を
設け、上記アダプタに該拡大部が当接するスト、・ぐ部
を設けるとともに該拡大部を外側周囲よ９弾発的に固定
保持するための弾性片を備えたことを特徴とする光コネ
クタ。 ２、特許請求の範囲第１項記載の光コネクタにおいて、
上記アダプタが光素子を弾発的に固定保」芋して収容す
るだめの弾性部材を具備したことを特徴とする光コネク
タ。[Claims] 1. In an optical connector constituted by an adapter that accommodates an optical element and a plug consisting of an insertion ferrule provided at the end of an optical fiber, an enlarged portion is provided on the insertion ferrule, and the enlarged portion is provided on the adapter. What is claimed is: 1. An optical connector characterized in that the optical connector is provided with an elastic piece for elastically fixing and holding the enlarged portion from the outer periphery. 2. In the optical connector according to claim 1,
An optical connector characterized in that the adapter comprises an elastic member for elastically fixing and holding the optical element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3293383A JPS59160111A (en) | 1983-03-02 | 1983-03-02 | Optical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3293383A JPS59160111A (en) | 1983-03-02 | 1983-03-02 | Optical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59160111A true JPS59160111A (en) | 1984-09-10 |
Family
ID=12372725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3293383A Pending JPS59160111A (en) | 1983-03-02 | 1983-03-02 | Optical connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59160111A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6279406A (en) * | 1985-07-22 | 1987-04-11 | ラデイアル アンデユストリ− | Optical fiber connecting coupler for connecting optical fiber with optoelectronic unit or two optical fibers and utilizing method thereof |
| JPS62151508U (en) * | 1986-03-18 | 1987-09-25 | ||
| JPS63278006A (en) * | 1987-05-11 | 1988-11-15 | Hitachi Ltd | Laser diode coupling device and its production |
| EP0414272A2 (en) * | 1989-08-25 | 1991-02-27 | Canon Kabushiki Kaisha | Optical apparatus having a mount |
-
1983
- 1983-03-02 JP JP3293383A patent/JPS59160111A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6279406A (en) * | 1985-07-22 | 1987-04-11 | ラデイアル アンデユストリ− | Optical fiber connecting coupler for connecting optical fiber with optoelectronic unit or two optical fibers and utilizing method thereof |
| JPS62151508U (en) * | 1986-03-18 | 1987-09-25 | ||
| JPS63278006A (en) * | 1987-05-11 | 1988-11-15 | Hitachi Ltd | Laser diode coupling device and its production |
| EP0414272A2 (en) * | 1989-08-25 | 1991-02-27 | Canon Kabushiki Kaisha | Optical apparatus having a mount |
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