JP3375489B2 - Discrimination of strands of optical fiber ribbon - Google Patents
Discrimination of strands of optical fiber ribbonInfo
- Publication number
- JP3375489B2 JP3375489B2 JP17682896A JP17682896A JP3375489B2 JP 3375489 B2 JP3375489 B2 JP 3375489B2 JP 17682896 A JP17682896 A JP 17682896A JP 17682896 A JP17682896 A JP 17682896A JP 3375489 B2 JP3375489 B2 JP 3375489B2
- Authority
- JP
- Japan
- Prior art keywords
- tape core
- strand
- light
- optical fiber
- wire
- 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.)
- Expired - Fee Related
Links
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、光ファイバケー
ブル等に収容されている光ファイバテープ心線（以下、
テープ心線と略記する。）の光ファイバ素線（以下、素
線と略記することがある。）を識別する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an optical fiber tape core wire (hereinafter,
Abbreviated as a tape core. ) Of the optical fiber (hereinafter, may be abbreviated as an element).
【０００２】[0002]
【従来の技術】一般に、光ファイバ裸線、光ファイバ素
線などの光ファイバに曲率半径の小さい曲げを与えた状
態で光を導波すると、その導波光が曲げ部分から周方向
外方に向けて放射され、光が漏洩する現象が知られてい
る。そして、この漏洩現象を利用して、多数本の光ファ
イバから目的とする光ファイバを識別する方法が開発さ
れている。2. Description of the Related Art Generally, when light is guided in a state in which an optical fiber such as an optical fiber bare wire or an optical fiber element wire is bent with a small radius of curvature, the guided light is directed outward from the bent portion in the circumferential direction. It is known that light is radiated and leaks light. Then, by utilizing this leakage phenomenon, a method for identifying a target optical fiber from a large number of optical fibers has been developed.
【０００３】また、テープ心線にあっても、同様に曲げ
を与えてそこから漏洩する光を受光することによってそ
の素線を識別することが可能である。この場合には、漏
洩光受光部に素線の太さに対応する微細な窓を設けた可
動窓機構を付設し、この可動窓を微かづつ移動させて漏
洩光を受光することが必要となる。このため、この方式
のテープ心線の素線識別では、漏洩光受光部の機構が精
密でかつ複雑となり、装置費用が嵩む不都合がある。Further, even in the case of the tape core wire, it is possible to identify the element wire by similarly bending and receiving the light leaking therefrom. In this case, it is necessary to attach a movable window mechanism having a fine window corresponding to the thickness of the strand to the leaked light receiving portion, and move the movable window minutely to receive the leaked light. . Therefore, in the strand identification of the tape core wire of this system, the mechanism of the leak light receiving portion becomes precise and complicated, and there is a disadvantage that the apparatus cost increases.
【０００４】一方、テープ心線では、その一方の側端に
位置する素線に識別用の着色を施してトレーサ素線と
し、このトレーサ素線を１番とし、これから順に２番、
３番……として識別を行う方法が採用されている。この
方式では、識別用着色の色調を変えることで、テープ心
線そのものの識別も可能となる。しかし、この識別方式
では、テープ心線が複数枚接続された接続テープ心線の
場合、その接続作業の際にテープ心線の裏表を間違えて
接続すると、素線の正確な識別は不可能となる。また、
識別点においてテープ心線の接続に誤接続があったか否
かの判断ができない不都合もある。On the other hand, in the case of the tape core wire, a wire located at one side end thereof is colored for identification to form a tracer wire, and this tracer wire is designated as No. 1 and then No. 2,
The method of identifying as No. 3 ... is adopted. In this method, the tape core itself can be identified by changing the color tone of the identification coloring. However, according to this identification method, in the case of a connecting tape core wire in which a plurality of tape core wires are connected, if the front and back of the tape core wires are mistakenly connected during the connecting work, it is impossible to accurately identify the wires. Become. Also,
There is also an inconvenience that it is not possible to judge whether or not there is an erroneous connection of the tape core wires at the identification point.
【０００５】[0005]
【発明が解決しようとする課題】よって、本発明におけ
る課題は、１個所以上の接続箇所を有する接続テープ心
線の素線識別が簡単に行え、接続テープ心線に誤接続が
あっても正確に素線識別が可能であり、かつ誤接続の有
無も判別することができるようにすることである。SUMMARY OF THE INVENTION Therefore, the object of the present invention is to easily identify the strands of a connecting tape core wire having one or more connecting points, and to accurately measure the connecting tape core wire even if there is an erroneous connection. In addition, it is possible to discriminate the strands and to determine whether or not there is an erroneous connection.
【０００６】[0006]
【課題を解決するための手段】かかる課題は、接続テー
プ心線の入射点において、その幅方向の中心線に対して
対称位置にある一対の素線のいずれか一方のみに識別用
の光を入射し、入射点よりも少なくとも１以上の接続箇
所を経た識別点において接続テープ心線に曲げを与え、
この識別点における接続テープ心線の前記一方の素線を
遮蔽し、他方の素線を遮蔽しない状態で接続テープ心線
全体からの漏洩光を受光してその強度を測定し、つい
で、識別点における接続テープ心線の前記一方の素線を
遮蔽せず、他方の素線を遮蔽した状態で接続テープ心線
全体からの漏洩光を受光してその強度を測定し、これら
の強度の差から識別用の光が導波されている素線を識別
することにより解決できる。SUMMARY OF THE INVENTION The problem is that, at the incident point of the connecting tape core wire, only one of a pair of strands symmetrically positioned with respect to the center line in the width direction is provided with identification light. Bending the connecting tape core wire at the identification point which is incident and has passed at least one or more connecting points from the incident point,
The connecting tape core wire in a state where the one strand of the connecting tape core wire at this identification point is shielded and the other strand is not shielded
The leaked light from the whole is received and the intensity is measured, and then the connecting tape core wire is shielded at the identification point while the other one of the connecting tape core wires is not shielded.
This can be solved by receiving leaked light from the whole , measuring the intensity thereof, and identifying the strand through which the identifying light is guided from the difference in these intensities.
【０００７】[0007]
【発明の実施の態様】以下、図面を参照して本発明の具
体例を詳しく説明する。図１は、本発明の請求項２に記
載の発明の一例を模式的に示すもので図中符号１は第１
のテープ心線を、２は第２のテープ心線を示す。これら
のテープ心線１、２は８本の光ファイバ素線からなる８
心のもので、これらは接続箇所３において一括融着接続
されて接続テープ心線４となっている。ここでの接続は
誤りなく正しく接続されているものとする。この接続テ
ープ心線４の一方の側端に位置する素線は、着色されて
トレーサ素線となっており、この素線を第１の素線５と
し、他方の側端に位置する素線を第２の素線６とする。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, specific examples of the present invention will be described in detail with reference to the drawings. FIG. 1 schematically shows an example of the invention described in claim 2 of the present invention, in which reference numeral 1 denotes the first.
, And 2 indicates a second tape core wire. These tape core wires 1 and 2 are composed of 8 optical fiber wires 8
These are cores, and these are collectively fusion-bonded at the connection points 3 to form the connection tape core wires 4. It is assumed that the connection here is correct and correct. The elemental wire located at one side end of the connecting tape core wire 4 is colored and becomes a tracer elemental wire. Is the second wire 6.
【０００８】また、第１のテープ心線１の開放端を識別
用の光を入射する入射点Ａとし、第２のテープ心線２の
途中の任意の位置を識別点Ｂとする。そして、識別点Ｂ
においては、曲げ付与治具７により第２のテープ心線２
に曲げが付与されるとともに曲げ付与治具７に対向する
位置に図示しない受光部が設けられ、この曲げ部分から
漏洩する光が受光されるようになっている。この受光部
は第２のテープ心線２の全幅からの漏洩光を受光するも
のである。Further, the open end of the first tape core wire 1 is defined as an incident point A where the identification light is incident, and an arbitrary position in the middle of the second tape core wire 2 is defined as an identification point B. And the identification point B
In the second tape core 2 by the bending imparting jig 7.
A light receiving portion (not shown) is provided at a position facing the bending applying jig 7 and facing the bending applying jig 7 so that light leaking from this bending portion is received. The light receiving portion receives leaked light from the entire width of the second tape core wire 2.
【０００９】まず、接続テープ心線４の入射点Ａから、
トレーサ素線である第１の素線５に識別用の光を入射す
る。接続箇所３を介した識別点Ｂにおいては、遮光シー
ト８を第２のテープ心線２のトレーサ素線である第１の
素線５が遮蔽され、第２の素線６が遮蔽されない状態と
なるように第２のテープ心線２上に覆う。上記遮光シー
ト８としては、金属箔、黒色紙、黒色プラスチックシー
トなどが用いられ、第１のテープ心線２の曲がり部分を
十分に覆う長さと、第１のテープ心線２の全幅の半幅程
度の幅を有する可撓性を有するものが用いられ、この例
では、長さ６００ｍｍ、幅１ｍｍ、厚み０．１ｍｍ程度
のアルミニウム箔が用いられている。このような遮光シ
ート８が第１の素線５を覆い、第２の素線６を覆わない
状態を状態Ｉと言う。この状態Ｉにおいて、第２のテー
プ心線２の識別点Ｂの曲がり部分から漏洩する光を受光
部で受光し、その受光強度Ｐ1 を測定する。First, from the incident point A of the connecting tape core wire 4,
Light for identification is incident on the first strand 5 which is a tracer strand. At the identification point B via the connection point 3, the light shielding sheet 8 is in a state in which the first strand 5 which is the tracer strand of the second tape core wire 2 is shielded and the second strand 6 is not shielded. So as to cover the second tape core wire 2. As the light shielding sheet 8, a metal foil, a black paper, a black plastic sheet, or the like is used, and the length that sufficiently covers the bent portion of the first tape core wire 2 and the half width of the entire width of the first tape core wire 2 are used. An aluminum foil having a length of 600 mm, a width of 1 mm and a thickness of about 0.1 mm is used in this example. A state in which the light shielding sheet 8 covers the first strand 5 and does not cover the second strand 6 is referred to as a state I. In this state I, the light leaking from the bent portion of the identification point B of the second tape core wire 2 is received by the light receiving section, and the received light intensity P 1 is measured.
【００１０】次いで、遮光シート８の位置を移動し、図
１中破線で示した位置とし、トレーサ素線である第１の
素線５が遮蔽されず、第２の素線が遮蔽された状態ＩＩ
とし、この状態ＩＩで第２のテープ心線２からの漏洩光
を受光部で受光し、その受光強度Ｐ2 を測定する。Next, the position of the light shielding sheet 8 is moved to the position shown by the broken line in FIG. 1, and the first strand 5 which is the tracer strand is not shielded and the second strand is shielded. II
In this state II, the leak light from the second tape core wire 2 is received by the light receiving section, and the received light intensity P 2 is measured.
【００１１】つぎに、受光強度Ｐ1 とＰ2 とを比較す
る。識別点Ｂにおいて、第１の素線５に識別用の光が導
波されているので、状態Ｉでの受光強度Ｐ1 は小さくな
り、状態ＩＩでの受光強度Ｐ2 は大きくなるはずであ
る。したがって、受光強度Ｐ1 とＰ2 とを比較し、Ｐ2
がＰ1 よりも十分大きい場合には、入射点Ａで第１の素
線５に入射された識別用の光は識別点Ｂにおいても第１
の素線５にまちがいなく導波されていることが確認で
き、これによって第１の素線５が識別される。Next, the received light intensities P 1 and P 2 will be compared. At the discrimination point B, since the discrimination light is guided to the first strand 5, the received light intensity P 1 in the state I should be small and the received light intensity P 2 in the state II should be large. . Therefore, the received light intensities P 1 and P 2 are compared and P 2
Is sufficiently larger than P 1, the identification light incident on the first strand 5 at the incident point A has the first light at the identification point B as well.
It can be confirmed that the wire 5 is correctly guided, so that the first wire 5 is identified.
【００１２】以上のようにして、識別点Ｂにおいて第２
のテープ心線２の第１の素線５が識別できれば、第２の
テープ心線２の他の素線もトレーサ素線である第１の素
線５から何番目に位置するかによって順次識別すること
ができる。As described above, at the identification point B, the second
If it is possible to identify the first strand 5 of the tape core wire 2, the other strands of the second tape core wire 2 are sequentially identified by the position of the first strand 5 which is the tracer strand. can do.
【００１３】図２は、上述の例において接続箇所３で一
方のテープ心線が裏返しに誤接続され、第１のテープ心
線１のトレーサ素線である第１の素線５に第２のテープ
心線２の第２の素線６が接続された場合を示す。しか
し、実使用に際しては、この誤接続が予め判明していな
い限り、識別点Ｂではかかる誤接続は知るよしもなく、
第２のテープ心線２のトレーサ素線である第１の素線５
は第１のテープ心線１のトレーサ素線である第１の素線
５に接続されていると判断されることになる。FIG. 2 shows that, in the above-mentioned example, one of the tape core wires is mistakenly connected upside down at the connection point 3, and the first wire 5 which is the tracer wire of the first tape core 1 is connected to the second wire 5. The case where the second strand 6 of the tape core wire 2 is connected is shown. However, in actual use, unless the erroneous connection is known in advance, it is not necessary to know the erroneous connection at the identification point B.
First strand 5 which is a tracer strand of the second tape core wire 2
Is determined to be connected to the first strand 5 which is the tracer strand of the first tape core wire 1.
【００１４】この状態において、入射点Ａから第１のテ
ープ心線１のトレーサ素線である第１の素線５に識別用
の光を入射し、識別点Ｂで、第２のテープ心線２のトレ
ーサ素線である第１の素線５を遮蔽し、第２の素線６を
遮蔽しない状態Ｉとして、漏洩光の受光強度Ｐ1 を測定
する。ついで、遮光シート８を移動し、第１の素線５を
遮蔽せず、第２の素線６を遮蔽する状態ＩＩとして受光
強度Ｐ2 を測定する。この例では、上述のように第２の
テープ心線２の第２の素線６に識別用の光が導波されて
いるので、受光強度Ｐ1 は大きくなり、受光強度Ｐ2 は
小さくなる。In this state, identification light is incident on the first strand 5 which is the tracer strand of the first tape core 1 from the incident point A, and at the discrimination point B, the second tape core. The received light intensity P 1 of the leaked light is measured in a state I in which the first strand 5 which is the second tracer strand is shielded and the second strand 6 is not shielded. Next, the light-shielding sheet 8 is moved, and the received light intensity P 2 is measured as a state II in which the first strand 5 is not shielded and the second strand 6 is shielded. In this example, since the identification light is guided to the second element wire 6 of the second tape core wire 2 as described above, the received light intensity P 1 is increased and the received light intensity P 2 is decreased. .
【００１５】これから逆に、状態Ｉでの受光強度Ｐ1 が
状態ＩＩでの受光強度Ｐ2 よりも十分大きい場合には、
識別用の光は、第２のテープ心線２のトレーサ素線であ
る第１の素線５ではなく、第２の素線６に導波されてい
ることが判明し、これより識別点Ｂにおいて接続箇所３
での誤接続を知ることができる。On the contrary, when the received light intensity P 1 in the state I is sufficiently larger than the received light intensity P 2 in the state II,
It was found that the light for identification is guided to the second strand 6 instead of the first strand 5 which is the tracer strand of the second tape core wire 2. At connection point 3
You can know the wrong connection in.
【００１６】このように、本発明の方法によれば、接続
テープ心線４に誤接続が２回以上あった場合でも個々の
テープ心線のトレーサ素線に頼ることなく識別点Ｂで識
別用の光が導波されている素線が判別できる。このた
め、入射点Ａにおいてトレーサ素線である第１の素線５
に識別用の光を入射していれば、いかなる識別点におい
てもその光が導波されている素線が入射点Ａでのトレー
サ素線である第１の素線５に接続されていることが判別
される。As described above, according to the method of the present invention, even if the connection tape core wire 4 is erroneously connected twice or more, the identification point B is used for identification without depending on the tracer wires of the individual tape core wires. It is possible to discriminate the element wire through which the light is guided. Therefore, at the incident point A, the first strand 5 which is the tracer strand
If the identification light is incident on the wire, the wire through which the light is guided at any identification point is connected to the first wire 5 which is the tracer wire at the incident point A. Is determined.
【００１７】また、この例では、入射点Ａで識別用の光
を入射する素線は、第１の素線５に限られず、第２の素
線６であってもよく、この場合には受光強度の関係が逆
になる。また、請求項１記載の発明のように、テープ心
線の両側端にある一対の素線を識別に使用するものに限
られず、例えば５心のテープ心線では第２番目と第４番
目の素線を使用し、４心のテープ心線では第２番目と第
３番目の素線を使用するなど、テープ心線の幅方向の中
心線に対して対称位置にある一対の素線を用いることが
でき、同様の識別が可能となる。Further, in this example, the strand of light on which the identification light is incident at the incident point A is not limited to the first strand 5, but may be the second strand 6, and in this case. The relationship of received light intensity is reversed. Further, the invention is not limited to the one in which a pair of strands at both ends of the tape core wire are used for identification as in the invention described in claim 1, and for example, in the case of a five-core tape core wire, the second core wire and the fourth core wire are used. Use a pair of strands at symmetrical positions with respect to the center line in the width direction of the tape core, such as using the strands and using the second and third strands of the 4-core tape core. The same identification is possible.
【００１８】以下、具体例を示す。
（実施例）８心の光ファイバテープ心線を２枚用意し、
これらを故意に裏表を逆にして一括融着接続して誤接続
の接続テープ心線とした。第１のテープ心線のトレーサ
素線（第１の素線）に識別用の光を入射するようにし
た。識別点において、第２のテープ心線のトレーサ素線
（第１の素線）側からテープ心線の幅の１／２までを長
さ６０ｍｍにわたり、厚さ１００μｍのアルミニウム箔
で覆い、状態Ｉとして漏洩光の受光強度Ｐ1 を測定し
た。A specific example will be shown below. (Example) Prepare two pieces of 8-fiber optical fiber ribbons,
These were intentionally turned upside down and collectively fused and spliced to form a spliced connection tape core wire. Light for identification was made to enter the tracer element wire (first element wire) of the first tape core wire. At the identification point, from the tracer element wire (first element wire) side of the second tape core wire to half the width of the tape core wire covering a length of 60 mm with an aluminum foil having a thickness of 100 μm, the state I As a result, the received light intensity P 1 of the leaked light was measured.
【００１９】ついで、アルミニウム箔を移動し、第２の
テープ心線のトレーサ素線（第１の素線）の反対側の側
端の素線（第２の素線）側からテープ心線の幅の１／２
までを覆って、状態ＩＩとして、漏洩光の受光強度Ｐ2
を測定した。受光強度Ｐ1 とＰ2 との差（Ｐ1 −Ｐ2 ）
は１５．３ｄＢであった。この結果、第１のテープ心線
のトレーサ素線（第１の素線）に接続されている第２の
テープ心線の素線は、トレーサ素線（第１の素線）では
なく、反対側の第２の素線であることが判明し、誤接続
が明らかとなった。第２のテープ心線の他の素線につい
ても、その配列から何番の素線であるかが識別できた。Next, the aluminum foil is moved, and the tape core wire is moved from the strand (second strand) side opposite to the tracer strand (first strand) of the second tape strand. 1/2 the width
And the received light intensity P 2 of the leaked light in the state II.
Was measured. Difference between received light intensity P 1 and P 2 (P 1 -P 2 )
Was 15.3 dB. As a result, the wire of the second tape core wire connected to the tracer wire of the first tape core wire (first wire) is not the tracer wire (first wire) but the opposite wire. It was found to be the second wire on the side, and erroneous connection was revealed. Regarding the other strands of the second tape core, it was possible to identify the number of the strand from the arrangement.
【００２０】[0020]
【発明の効果】以上説明したように、本発明の識別方法
によれば、以下のような効果を得ることができる。
複数のテープ心線を接続した接続テープ心線の素線
識別をトレーサ素線に頼ることなく正確に行うことがで
きる。
このため接続テープ心線に誤接続があっても正しい
素線識別が可能であり、しかも識別点において誤接続の
有無を知ることができる。
精密、複雑な測定装置が不要であり、識別作業のコ
ストを低減できる。
テープ心線の端末に多いコネクターを取り付ける
際、その取り付け以前に正確な素線番号を知ることがで
きるので、コネクターの取付けのやり直しを行うことが
なくなり、作業性が向上する。As described above, according to the identification method of the present invention, the following effects can be obtained. It is possible to accurately identify the strands of a connecting tape core wire in which a plurality of tape core wires are connected without relying on the tracer wires. Therefore, even if there is an erroneous connection in the connecting tape core wire, it is possible to correctly identify the strands, and it is possible to know the presence or absence of the erroneous connection at the identification point. No precise and complicated measuring device is required, and the cost of identification work can be reduced. When many connectors are attached to the ends of the tape core wire, it is possible to know the exact wire number before the attachment, so that it is not necessary to re-attach the connector and the workability is improved.
【図１】 本発明の識別方法の一例を示す概略構成図で
ある。FIG. 1 is a schematic configuration diagram showing an example of an identification method of the present invention.
【図２】 本発明の識別方法の他の例を示す概略構成図
である。FIG. 2 is a schematic configuration diagram showing another example of the identification method of the present invention.
１ 第１のテープ心線 ２ 第２のテープ心線 ３ 接続箇所 ４ 接続テープ心線 ５ 第１の素線（トレーサ素線） ６ 第２の素線 ８ 遮光シート 1 First tape core 2 second tape core 3 connection points 4 connection tape core wire 5 First strand (tracer strand) 6 Second strand 8 Light-shielding sheet
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平８−62478（ＪＰ，Ａ) 特開 平７−65636（ＪＰ，Ａ) 特開 平４−355336（ＪＰ，Ａ) 特開 平２−7004（ＪＰ，Ａ) 特開 昭62−156603（ＪＰ，Ａ) 実開 昭63−78904（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01M 11/00 - 11/02 G02B 6/00 G02B 6/28 G06B 6/44 311 H04B 10/08 H04B 17/00 - 17/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-8-62478 (JP, A) JP-A-7-65636 (JP, A) JP-A-4-355336 (JP, A) JP-A-2- 7004 (JP, A) JP 62-156603 (JP, A) Actual development 63-78904 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) G01M 11/00-11 / 02 G02B 6/00 G02B 6/28 G06B 6/44 311 H04B 10/08 H04B 17/00-17/02
Claims (2)
接続テープ心線の素線を識別するに際して、前記光ファ
イバテープ心線の幅方向の中心軸に対して対称位置にあ
る一対の素線のいずれか一方のみに入射点から識別用の
光を入射し、 この入射点より少なくとも１以上の接続箇所を経た識別
点において接続テープ心線に曲げを与え、 この識別点における接続テープ心線の前記一方の素線を
遮蔽し、他方の素線を遮蔽しない状態で接続テープ心線
全体からの漏洩光を受光してその強度を測定し、 ついで、識別点における接続テープ心線の前記一方の素
線を遮蔽せず、他方の素線を遮蔽した状態で接続テープ
心線全体からの漏洩光を受光してその強度を測定し、 これらの強度の差から識別用の光が導波されている素線
を識別することを特徴とする光ファイバテープ心線の素
線識別法。1. A pair of elements located symmetrically with respect to a center axis in the width direction of the optical fiber ribbon when identifying the strands of the connecting tape ribbon connecting two or more optical fiber ribbons. The identification light is incident on only one of the lines from the incident point, the connecting tape core wire is bent at the identification point that passes through at least one connection point from the incident point, and the connecting tape core wire at this identification point is given. Of the connecting tape in a state in which the one strand of the
The leaked light from the whole is received and its intensity is measured.Then, one of the connecting tape core wires at the identification point is not shielded, and the other is shielded from the entire connecting tape core wire. A method for identifying a strand of an optical fiber ribbon, which comprises detecting the light leaked from the optical fiber, measuring the intensity of the leaked light, and identifying the strand through which the identifying light is guided based on the difference in these intensities.
心線に対して対称位置にある一対の素線として、光ファ
イバテープ心線の両側端にある一対の素線を用いること
を特徴とする請求項１記載の光ファイバテープ心線の素
線識別法。2. A pair of strands at both ends of the optical fiber ribbon are used as the pair of strands located symmetrically with respect to the center line in the width direction of the optical fiber ribbon. The method for identifying strands of an optical fiber ribbon according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17682896A JP3375489B2 (en) | 1996-07-05 | 1996-07-05 | Discrimination of strands of optical fiber ribbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17682896A JP3375489B2 (en) | 1996-07-05 | 1996-07-05 | Discrimination of strands of optical fiber ribbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1019723A JPH1019723A (en) | 1998-01-23 |
| JP3375489B2 true JP3375489B2 (en) | 2003-02-10 |
Family
ID=16020558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17682896A Expired - Fee Related JP3375489B2 (en) | 1996-07-05 | 1996-07-05 | Discrimination of strands of optical fiber ribbon |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3375489B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4728132B2 (en) * | 2006-02-01 | 2011-07-20 | 日本電信電話株式会社 | Optical cord |
| JP5565998B2 (en) * | 2007-01-24 | 2014-08-06 | 株式会社日立メディコ | Optical fiber counting device |
| CN112904511B (en) * | 2021-02-18 | 2022-12-02 | 杭州富通通信技术股份有限公司 | Skeleton cable |
-
1996
- 1996-07-05 JP JP17682896A patent/JP3375489B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1019723A (en) | 1998-01-23 |
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