JPH01138520A - Optical fiber - Google Patents
Optical fiberInfo
- Publication number
- JPH01138520A JPH01138520A JP62298509A JP29850987A JPH01138520A JP H01138520 A JPH01138520 A JP H01138520A JP 62298509 A JP62298509 A JP 62298509A JP 29850987 A JP29850987 A JP 29850987A JP H01138520 A JPH01138520 A JP H01138520A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- identification marks
- optical fibers
- covering layer
- fluorescent material
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 40
- 239000011247 coating layer Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000003365 glass fiber Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 abstract description 4
- 239000004925 Acrylic resin Substances 0.000 abstract description 3
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 abstract description 3
- 229920002050 silicone resin Polymers 0.000 abstract description 3
- 238000005253 cladding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- -1 alkaline earth metal sulfides Chemical class 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000007644 letterpress printing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- INXLGDBFWGBBOC-UHFFFAOYSA-N platinum(2+);dicyanide Chemical compound [Pt+2].N#[C-].N#[C-] INXLGDBFWGBBOC-UHFFFAOYSA-N 0.000 description 1
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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4482—Code or colour marking
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、複数本の光ファイバ素線を被覆層によって一
体化した光ファイバ心線に関するもので、例えばテープ
状光ファイバ心線に使用される。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical fiber coated wire in which a plurality of optical fiber strands are integrated with a coating layer, and is used, for example, in a tape-shaped coated optical fiber. Ru.
光ファイバ心線は複数本の光ファイバ素線を束ね、これ
をウレタンアクリレート系樹脂などからなる被覆層で一
体化することにより形成される。The optical fiber core wire is formed by bundling a plurality of optical fiber strands and integrating them with a coating layer made of urethane acrylate resin or the like.
ここで、光ファイバ素線はコアおよびクラッドからなる
ガラスファイバをシリコーン樹脂などのコーティング層
で保護して形成される。そして、複数本の光ファイバ素
線からなる光ファイバ心線は、更に複数本が束ねられて
光ファイバケーブルとして用いられる。Here, the optical fiber wire is formed by protecting a glass fiber consisting of a core and a cladding with a coating layer such as silicone resin. Then, a plurality of coated optical fibers made up of a plurality of optical fiber strands are further bundled and used as an optical fiber cable.
このような光ファイバケーブルを公衆電話回線などに用
いるときには、例えばこれを地中に敷設し、中継点など
ではメイン（幹線）のケーブルとサブ（支線あるいは端
末）のケーブルを接続することが必要になる。この接続
作業にあたっては、光ファイバケーブルを複数本の光フ
ァイバ心線に分岐し、これを対応する光ファイバ心線と
突き合わせ、ガラスファイバ同士を接続することが必要
になる。そこで、複数本の光ファイバ心線を識別するた
めに、光ファイバ心線の被覆層に識別マークを付するこ
とか行なわれている。When using such optical fiber cables for public telephone lines, for example, it is necessary to lay them underground and connect the main (trunk) cable and sub (branch or terminal) cables at relay points. Become. In this connection work, it is necessary to branch the optical fiber cable into a plurality of optical fiber core wires, match these with corresponding optical fiber core wires, and connect the glass fibers to each other. Therefore, in order to identify a plurality of coated optical fibers, identification marks are attached to the coating layer of the coated optical fibers.
しかしながら、このような接続作業は通常はマンホール
内で行なわれ、また作業の時間帯も夜間であることが多
いため、識別マークを作業員が認識することは容易でな
かった。However, since such connection work is usually performed inside a manhole and the work is often done at night, it is difficult for workers to recognize the identification marks.
そこで本発明は、光ファイバ心線の識別を容易に行なう
ことのできる光ファイバ心線を提供することを目的とす
る。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a coated optical fiber that can be easily identified.
本発明に係る光ファイバ心線は、被覆層の表面に螢光性
材料からなる識別マークが付されていることを特徴とす
る。The optical fiber core wire according to the present invention is characterized in that an identification mark made of a fluorescent material is attached to the surface of the coating layer.
本発明の構成によれば、識別マークは暗い状態でも螢光
によって明るく見えることになる。According to the configuration of the present invention, the identification mark can be seen brightly even in a dark state due to the fluorescent light.
以下、添付図面により実施例の光ファイバ心線を説明す
る。Hereinafter, optical fiber cores according to embodiments will be explained with reference to the accompanying drawings.
第１図は実施例の斜視図である。図示の通り、コアとク
ラッドからなるガラスファイバ１は例えばシリコーン樹
脂からなるコーティング層２によって保護されている。FIG. 1 is a perspective view of the embodiment. As shown in the figure, a glass fiber 1 consisting of a core and a cladding is protected by a coating layer 2 made of silicone resin, for example.
このようにして構成される４本の光ファイバ素線はウレ
タンアクリレート系樹脂などからなる被覆層３により一
体化され、１本のテープ状光ファイバ心線となっている
。そして被覆層３の表面には螢光材料からなる識別マー
ク４として、ｒＢ−２Ｊの文字が付されている。The four optical fiber strands constructed in this manner are integrated by a coating layer 3 made of urethane acrylate resin or the like to form one tape-shaped optical fiber core. The letters rB-2J are attached to the surface of the coating layer 3 as an identification mark 4 made of a fluorescent material.
ここで、螢光材料としてはシアン化白金、アルカリ土金
属の硫化物など、各種のものを用いることができる。ま
た、付着方法としては、凸版による印刷やインクジェッ
トによる印刷など、種々の態様がある。Here, various fluorescent materials such as platinum cyanide and alkaline earth metal sulfides can be used as the fluorescent material. Furthermore, there are various methods of attachment, such as letterpress printing and inkjet printing.
次に、上記実施例の作用を説明する。Next, the operation of the above embodiment will be explained.
いは、Ａ−Ｃのグループにおいて各１０本の光ファイバ
心線を有するメインの光ファイバケーブルを、各１０本
づつの光ファイバ心線を有するＡ。Or, in groups A to C, the main optical fiber cables each have 10 optical fibers, and the main optical fiber cables in groups A to C each have 10 optical fibers.
Ｂ、Ｃの３つの光ファイバケーブルに接続するものとす
る。このときには、メインの光ファイバケーフルの各光
ファイバ心線にｒＡ−ＯＪ〜ｒＡ−９」、ｒＢ−ＯＪ〜
ｒＢ−９Ｊ、ｒＣ−ＯＪ〜ｒＣ−９Ｊの識別マークをグ
ループごとに螢光材料で付しておく。一方、サブの光フ
ァイバケーブルの各光ファイバ心線については、Ａのも
のはｒＡ−ＯＪ〜ｒＡ−９Ｊ 、ＢのものはｒＢ −Ｏ
Ｊ〜「Ｂ−９」、ＣのものはｒＣ−ＯＪ〜ｒＣ−９Ｊを
付する。Assume that it is connected to three optical fiber cables B and C. At this time, rA-OJ~rA-9'', rB-OJ~
Identification marks for rB-9J, rC-OJ to rC-9J are attached to each group using fluorescent material. On the other hand, regarding each optical fiber core of the sub-optical fiber cable, A is rA-OJ to rA-9J, B is rB-O
J to "B-9", those of C are given rC-OJ to rC-9J.
このようにすれば、各光ファイバ心線の識別マークｒＡ
−ＯＪ〜ｒＣ−９Ｊ 、は暗いマンホールの中などでも
作業者により容易に認識することができる。従って、接
続に誤りを生じることが少なくなり、作業能率が向上す
る。In this way, the identification mark rA of each optical fiber
-OJ~rC-9J can be easily recognized by an operator even in a dark manhole. Therefore, connection errors are less likely to occur, and work efficiency is improved.
本発明の光ファイバ心線については、種々の変形が可能
である。例えば、識別マークは実施例のものの他、色別
けしたり、バーコードとしたりすることもできる。また
、光ファイバ心線はテープ状のものに限られず、円柱形
のものなど各種の変形が可能である。Various modifications can be made to the optical fiber of the present invention. For example, in addition to the identification marks in the embodiment, the identification marks may be different colors or may be barcodes. Further, the optical fiber core is not limited to a tape-like shape, and various modifications such as a cylindrical shape are possible.
以上、詳細に説明した通り本発明によれば、識別マーク
は暗い状態でも螢光によって明るく見えることになるの
で、光ファイバ心線の識別を容易に行なうことができる
。As described above in detail, according to the present invention, the identification mark can be seen brightly due to the fluorescence even in a dark condition, so that the optical fiber core can be easily identified.
第１図は本発明の一実施例に係る光ファイバ心線の斜視
図である。
１・・・ガラスファイバ、２・・・コーティング層、３
・・・被覆層、４・・・識別マーク。
特許出願人 住友電気工業株式会社FIG. 1 is a perspective view of a coated optical fiber according to an embodiment of the present invention. 1...Glass fiber, 2...Coating layer, 3
...Covering layer, 4...Identification mark. Patent applicant: Sumitomo Electric Industries, Ltd.
Claims (1)
ファイバ心線において、 前記被覆層の表面には螢光性材料による識別マークが付
されていることを特徴とする光ファイバ心線。[Claims] A cored optical fiber in which a plurality of optical fiber strands are integrated by a coating layer, characterized in that an identification mark made of a fluorescent material is attached to the surface of the coating layer. Optical fiber core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62298509A JPH01138520A (en) | 1987-11-26 | 1987-11-26 | Optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62298509A JPH01138520A (en) | 1987-11-26 | 1987-11-26 | Optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01138520A true JPH01138520A (en) | 1989-05-31 |
Family
ID=17860636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62298509A Pending JPH01138520A (en) | 1987-11-26 | 1987-11-26 | Optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01138520A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591618A2 (en) * | 1992-08-31 | 1994-04-13 | KABEL RHEYDT Aktiengesellschaft | Fiber optic cable |
| EP0975180A1 (en) * | 1998-07-24 | 2000-01-26 | Nippon Telegraph and Telephone Corporation | Optical fiber distribution module, optical fiber cord and fiber distribution system |
| US7292757B2 (en) | 2001-01-08 | 2007-11-06 | Draka Comteq B.V. | Apparatus and method for on-line binder laylength measurement and adjustment |
| CN112680019A (en) * | 2019-10-17 | 2021-04-20 | 上海飞凯光电材料股份有限公司 | Fluorescence identification colored optical fiber and preparation method thereof |
| AT525543A4 (en) * | 2022-05-16 | 2023-05-15 | Medek & Schoerner Gmbh | Fiber optic ribbon and method of making same |
-
1987
- 1987-11-26 JP JP62298509A patent/JPH01138520A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591618A2 (en) * | 1992-08-31 | 1994-04-13 | KABEL RHEYDT Aktiengesellschaft | Fiber optic cable |
| EP0591618A3 (en) * | 1992-08-31 | 1996-03-20 | Rheydt Kabelwerk Ag | Fiber optic cable |
| EP0975180A1 (en) * | 1998-07-24 | 2000-01-26 | Nippon Telegraph and Telephone Corporation | Optical fiber distribution module, optical fiber cord and fiber distribution system |
| US6256443B1 (en) | 1998-07-24 | 2001-07-03 | Nippon Telegraph And Telephone Corporation | Optical fiber distribution module for holding an optical fiber cord and fiber distribution system using optical fiber cords |
| KR100377823B1 (en) * | 1998-07-24 | 2003-03-26 | 니폰덴신뎅와 가부시키가이샤 | Board and system for distributing optical fibers |
| EP1691226A2 (en) * | 1998-07-24 | 2006-08-16 | Nippon Telegraph and Telephone Corporation | Optical fiber cord and set-type optical fiber cords |
| EP1691226A3 (en) * | 1998-07-24 | 2006-08-30 | Nippon Telegraph and Telephone Corporation | Optical fiber cable with identifying marks and colors |
| CN100339733C (en) * | 1998-07-24 | 2007-09-26 | 日本电信电话株式会社 | Optical fiber wiring system |
| US7292757B2 (en) | 2001-01-08 | 2007-11-06 | Draka Comteq B.V. | Apparatus and method for on-line binder laylength measurement and adjustment |
| CN112680019A (en) * | 2019-10-17 | 2021-04-20 | 上海飞凯光电材料股份有限公司 | Fluorescence identification colored optical fiber and preparation method thereof |
| AT525543A4 (en) * | 2022-05-16 | 2023-05-15 | Medek & Schoerner Gmbh | Fiber optic ribbon and method of making same |
| AT525543B1 (en) * | 2022-05-16 | 2023-05-15 | Medek & Schoerner Gmbh | Fiber optic ribbon and method of making same |
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