JPS60263907A - Manufacture of image fiber base material - Google Patents

Manufacture of image fiber base material

Info

Publication number
JPS60263907A
JPS60263907A JP59119742A JP11974284A JPS60263907A JP S60263907 A JPS60263907 A JP S60263907A JP 59119742 A JP59119742 A JP 59119742A JP 11974284 A JP11974284 A JP 11974284A JP S60263907 A JPS60263907 A JP S60263907A
Authority
JP
Japan
Prior art keywords
optical fiber
bundle
image
fiber
fiber bundle
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
Application number
JP59119742A
Other languages
Japanese (ja)
Inventor
Keiji Osaka
啓司 大阪
Yoshiki Chigusa
佳樹 千種
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP59119742A priority Critical patent/JPS60263907A/en
Publication of JPS60263907A publication Critical patent/JPS60263907A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/012Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • C03B37/01214Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of multifibres, fibre bundles other than multiple core preforms
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00Fibre product details, e.g. structure, shape
    • C03B2203/40Multifibres or fibre bundles, e.g. for making image fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To manufacture the image fiber base material without disordering the array of optical fiber element wires by inserting an optical fiber bundle of numbers of parallel optical fiber element wires into a jacket pipe installed almost in parallel by using a piston type inserting jig. CONSTITUTION:The optical fiber bundle 1 formed by arraying numbers of optical fiber element wires regularly in parallel is inserted into the jacket pipe 2 installed horizontally or with its entrance a little bit lower from the entrance gently without scuffing element wires; and the discoid pressure plate 5a of the piston type inserting jig 5 is applied to the rear end of the optical fiber bundle 1 and the press-in rod 5b is pushed up to a specific position in the jacket pipe 2, thereby inserting the bundle. A circular thin fin 6 is provided to the periphery of the discoid pressure plate 5a and a cut 7 is formed at about four positions of the periphery of the fin 6, so flowing-out passages for air, etc., confined in the jacket tube are secured during the insertion and the bundle is inserted into the jacket pipe 2 while the previously arrayed state is maintained.

Description

【発明の詳細な説明】 く技術分野ン 本発明はマルチ法によってイメージファイバを製造する
に際し、多数本の光ファイバ素線を予め規則的に平行に
整列させた元ファイバ束をに係る。
DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an original fiber bundle in which a large number of optical fiber strands are regularly arranged in parallel in advance when manufacturing an image fiber by a multi-method.

〈従来技術〉 イメージファイバは1画像伝送手段どして特に観察者が
@接接近できない狭隘な箇所を観察したり、あるいは1
Il11度や放射能で危険な箇所を観測した9するのに
極めて適しており、近年。
<Prior art> Image fibers are used as an image transmission means for observing narrow areas where the observer cannot get close to
In recent years, it has been extremely suitable for observing dangerous areas with Il11 degrees and radioactivity.

その利用分野が急速に増大しつつある。このイメージフ
ァイバは極めて微細な径のコア拳りラッド型元ファイバ
素線を束ねた元ファイバ束からなシ、単位断面積中に占
められる画素線数の本数が多いほど解像力が向上する特
性を具えている。従ってイメージファイバの画素線の径
は小さい程好ましく、シかも隙間なく稠密にかつ平行に
配列されていなければならない。従来このようなイメー
ジファイバの製造方法の一つとして第1図に示すような
マルチ法が知られている。マルチ法は第1図の断面図に
示すように。
The fields of its use are rapidly increasing. This image fiber is made from an original fiber bundle made by bundling core-fisted rad-type original fibers with extremely fine diameters, and has the characteristic that the resolution improves as the number of pixel lines occupied in a unit cross-sectional area increases. It is growing. Therefore, the smaller the diameter of the pixel lines of the image fiber, the better, and the lines must be arranged densely and in parallel without any gaps. Conventionally, a multi-method as shown in FIG. 1 has been known as one of the methods for manufacturing such an image fiber. The multi-method is shown in the cross-sectional view in Figure 1.

まず、径の大きな元ファイバ素線の多数本例えば数千な
いし数万本を密に平行に束ねた元ファイバ束1をジャケ
ット管2内に挿入しイメージファイバ母材ヲ作り、イメ
ージファイバ母材の周囲を環状加熱炉3によって軟化温
度以上に加熱しながら前記元ファイバ束1をジャケット
管と共に引き伸ばして、所定の径(断面積)のイ、メー
シファイバ4に仕上けられる。このような製造原理から
判るように、マルチ法によって製造されるイメージファ
イバにおける画素線の配列状態は、加熱伸延前のイメー
ジファイバ母材での元ファイバ緊線の配列状態によって
決足されてしまう。そこで1例えば画像歪特性の優れた
イ・メージファイバを得るためには、第2図に示すよう
に、ジャケット管2内に元ファイバ束lを挿入した時点
で光フアイバ素線1aが整然と配列していなければなら
ない。ところがこれら元ファイバ素線1aは電気絶縁体
で帯電し易く静電気力が働いて整列しない。
First, an image fiber base material is created by inserting a raw fiber bundle 1, which is a large number of raw fibers with a large diameter, for example several thousand to tens of thousands of fibers, tightly bundled in parallel into a jacket tube 2. The original fiber bundle 1 is stretched together with the jacket tube while the surrounding area is heated to a temperature higher than the softening temperature by the annular heating furnace 3, and a masi fiber 4 having a predetermined diameter (cross-sectional area) is finished. As can be seen from this manufacturing principle, the arrangement of pixel lines in the image fiber manufactured by the multi-method is determined by the arrangement of the original fiber strands in the image fiber base material before heating and drawing. For example, in order to obtain an image fiber with excellent image distortion characteristics, it is necessary to arrange the optical fibers 1a in an orderly manner when the original fiber bundle l is inserted into the jacket tube 2, as shown in FIG. must be maintained. However, these original fiber strands 1a are electrically insulating and easily charged, and are not aligned due to electrostatic force.

そこで、光フアイバ緊線1aを水、アルコール等の低粘
度の液体中で束ね、超音波を作用させて整列させ、その
ままの状態を保ってテープ等で仮りにまいて、ジャケッ
ト管2内に挿入し。
Therefore, the optical fiber strings 1a are bundled in a low-viscosity liquid such as water or alcohol, aligned using ultrasonic waves, kept in that state, temporarily wrapped with tape, etc., and inserted into the jacket tube 2. death.

乾燥させた後に加熱炉3で加熱線引することが行なわれ
ていた。しかし1元ファイバ束lがジャケント管2に挿
入される前まで元ファイバ素線の配列状態が良好である
のに挿入するに際して、光ファイバ束1の外周の光フア
イバ素線1aの配列が乱れるという問題があっfc、。
After drying, heating wire drawing was performed in a heating furnace 3. However, although the alignment of the original fibers is good before the single fiber bundle 1 is inserted into the Jaquent tube 2, the arrangement of the optical fibers 1a on the outer periphery of the optical fiber bundle 1 becomes disordered when it is inserted. There is a problem fc.

これは融溶一体化されてできたイメージファイバで画素
の飛び、ずれという不良画像の原因となった。
This caused defective images due to pixel skipping and misalignment in the image fiber that was made by melting and integrating.

この原因は光フアイバ緊線laとジャケット管2内面の
間に摩擦力が働くことにある。このため1元ファイバ束
1の内部と外周部とは第3図(a)に示すように、異っ
た速度でジャヶッB7内に落下する。従って、途中で止
った元ファイバ素i1aをあとから棒でつついて1本1
本押し込凍ねばならないというような不具合なことが起
る。このような場合、在住にして第3図(b)に示すよ
うに、ジャケット管2との境界面近くで元ファイバJC
,%11aの配列が大きく乱れることが起る。
The reason for this is that frictional force acts between the optical fiber strain la and the inner surface of the jacket tube 2. Therefore, the inside and the outer peripheral part of the single fiber bundle 1 fall into the jack B7 at different speeds, as shown in FIG. 3(a). Therefore, by poking the original fiber elements i1a that stopped on the way with a stick, one by one.
Problems such as having to freeze the book may occur. In such a case, as shown in FIG. 3(b), the original fiber JC should be
, %11a may be greatly disturbed.

また5片端を閉じたジャケントガラス管2を用いた場合
1元ファイバ束とジャケットガラス管との間のクリアラ
ンスが小きいとジャケット管内に閉じ込められた空気の
逃げ場がなくなり。
Furthermore, when using the Jackent glass tube 2 with one end closed, if the clearance between the single fiber bundle and the jacket glass tube is small, there will be no place for the air trapped in the jacket tube to escape.

光ファイバ来がジャケット管内に落ち込まないことが起
る。
It may happen that the optical fiber does not fall into the jacket tube.

逆にクリアランスが大きすぎると、光フアイバ束外周部
での配列の乱れが、特に乾燥後の工程において配列乱れ
が生じやすい欠点があった。
On the other hand, if the clearance is too large, there is a drawback that the arrangement of the optical fiber bundle tends to be disturbed at the outer peripheral part, particularly in the process after drying.

〈発明の目的〉 本発明はこのような従来技術の欠点に鑑みてなされたも
ので、予め規則的に平行に整列させた光ファイバ束を1
光フアイバ緊線の配列を乱すことなくジャケント管内に
挿入するイメージファイバ母材の製造方法を提供するこ
とを目的とする。
<Object of the Invention> The present invention has been made in view of the drawbacks of the prior art.
It is an object of the present invention to provide a method for manufacturing an image fiber preform that can be inserted into a Jakent tube without disturbing the arrangement of optical fiber strands.

く問題点解決の具体的手段〉 かがる目的を鉾成した本発明によるイメージファイバ母
材の製造方法の購或は、光フアイバ素線を多数本平行に
束ねた元ファイバ束を、はぼ水平に設置したジャケット
詔内に、ピストン状挿入治具を甲いて、挿入することを
特徴とするものである。
Concrete means for solving the problem〉 Purchase the method for manufacturing an image fiber preform according to the present invention, which accomplishes the purpose of crimping, or This method is characterized by inserting a piston-shaped insertion jig into a horizontally installed jacket sleeve.

〈実施例〉 本発明によるイメージファイバ母材の製造方法の一実施
例を図面を参照しながら駅、明する。
<Example> An example of the method for manufacturing an image fiber preform according to the present invention will be explained with reference to the drawings.

第4図(a)は本発明によるイメージファイバ母材の製
造方法を説明する。ジャケント管へ光ファイバ束を挿入
する状態を説明する装置の断面図である。第4図(a>
において、1は元ファイバ束、laは光フアイバ素線、
2は両端開放あるいは片端封止のガラスのジャケント管
、5はピスト/状挿入治具、5aは円板状押し板、5b
は押し込み棒、6は薄肉円形状ひれである。本発明によ
れば、ジャケット管2は水平もしくは入口が若干低目に
設置され、予め規則正しく平行に、多数本例えば数万本
の元ファイバ素線1aを整列させ光ファイバ束Iを杉成
し、光ファイバ束lを素線がばらけないように、ジャケ
ット管の入口から静かに挿入し、ジャケット管内では所
定の位置−まで光ファイバ束■の後端にピストン状挿入
治具5の円板状押し板5a’<押し当て、押し込み棒5
bを齢かに押して挿入するものである。ピストン状挿入
治具5の円板状押し5aの端面は、ジャケット管2に光
ファイバ束1を均一に押し込む目的であるため、ジャケ
ット管2の管軸に直角であってかつ平坦である。
FIG. 4(a) illustrates a method for manufacturing an image fiber preform according to the present invention. FIG. 2 is a cross-sectional view of the apparatus for explaining a state in which an optical fiber bundle is inserted into a Jakent tube. Figure 4 (a>
, 1 is the original fiber bundle, la is the optical fiber bare wire,
2 is a glass jacket tube with both ends open or one end sealed, 5 is a piston/shaped insertion jig, 5a is a disc-shaped push plate, 5b
is a push rod, and 6 is a thin circular fin. According to the present invention, the jacket tube 2 is installed horizontally or with the entrance slightly low, and a large number, for example, tens of thousands of original fiber strands 1a are arranged in advance regularly and parallel to form an optical fiber bundle I. Insert the optical fiber bundle l gently from the entrance of the jacket tube so that the wires do not come apart, and insert the disc-shaped piston-shaped insertion jig 5 at the rear end of the optical fiber bundle II until it reaches a predetermined position in the jacket tube. Push plate 5a'<Press, push rod 5
It is inserted by pushing b into the middle. The end face of the disc-shaped pusher 5a of the piston-shaped insertion jig 5 is flat and perpendicular to the tube axis of the jacket tube 2 because the purpose is to uniformly push the optical fiber bundle 1 into the jacket tube 2.

また円板状押し阪5aの外径はジャケット管に内接して
嵌合する外径である必要がある。しかし1通常ジャケッ
ト管2の内径はロット単位で±0.51El□程度のば
らつきがらり且つ1本の管でも長手方向に0.11B程
度のはらつきがあるため。
Further, the outer diameter of the disc-shaped pusher 5a needs to be such that it fits inwardly into the jacket pipe. However, the inner diameter of the jacket tube 2 usually varies by about ±0.51 El□ from lot to lot, and even a single tube has a variation of about 0.11 B in the longitudinal direction.

円形状押し板5aの外径が固足されていると。The outer diameter of the circular push plate 5a is fixed.

ジャケット管毎あるいは挿入位置の変化によって嵌合の
状態が異ることになる。このため、多棟類の外径をもつ
ピストン状挿入治具5を用意する必要が起るが、これで
は不経済となる。本発明では第4図(a) 、 (b)
 、 (C)に示される如く、ビストノ状挿入治具5の
円板状押し板5aの周辺に薄肉の円形状ひれ6が設けて
あシ、これが押しφ引きの動作に応じて柔軟に撓んで、
ジャケット管のほらつきに対応している。第4図(b)
はビストノ状挿入治具5の外観図、第4図(e)は第4
図(b)に示すビストノ状挿入治具の円板状押し板5a
の端面を示す側面図である。第4図(b)。
The state of fitting will differ depending on the jacket tube or depending on the insertion position. For this reason, it is necessary to prepare a piston-shaped insertion jig 5 having a multi-shaped outer diameter, but this becomes uneconomical. In the present invention, FIGS. 4(a) and (b)
As shown in (C), a thin circular fin 6 is provided around the disc-shaped pushing plate 5a of the biston-like insertion jig 5, and this flexibly bends in response to the pushing and pulling movements. ,
It copes with the looseness of the jacket tube. Figure 4(b)
4(e) is an external view of the biston-shaped insertion jig 5, and FIG.
Disk-shaped push plate 5a of the biston-shaped insertion jig shown in Figure (b)
It is a side view which shows the end surface of. Figure 4(b).

(c)に示す如く1円形状押し板5aの周辺には円形状
ひれ6が設けてあり1円形状ひれ6の周辺には4箇所桿
度切り込み7が設けておる、切り込み7は9片端刺止の
ジャケット管2に元ファイバ束lをビストノ状挿入治具
5で押し込んだ場合、ジャケント宮内に制し込められた
気体や液°本の眞出路盆権保するためと、一旦押し込め
られたピスト/状」細大冶具を引き抜くときの空気の流
入略を確保するために設けられたものである。もちろん
第4図(d)のように、微aIな気孔8を設けて流出路
とすることも可能である。尚。
As shown in (c), a circular fin 6 is provided around the circular push plate 5a, and four rod-degree incisions 7 are provided around the circular fin 6. When the original fiber bundle l is pushed into the stopper jacket pipe 2 using the piston-like insertion jig 5, the purpose is to protect the outlet of the gas and liquid contained in the jacket tube 2, and to protect the piston once pushed in. / shaped This is provided to ensure that air flows in when pulling out the narrow large jig. Of course, as shown in FIG. 4(d), it is also possible to provide minute aI pores 8 to serve as outflow channels. still.

ピストン状挿入治具5をジャケット管2に挿入し、7’
eファイバ束1を所望の位置まで押し込む場合、ジャケ
ット管2の入口部全水平より看千下は気味にし゛C,ビ
ストノ状神入治具5の支持枠5bを回しながら一様に元
ファイバ束1を静かに押し込むことによって光ノア1バ
素fJ l aはばらけず整列された状態で押し込むこ
とができる。かくして第5図(a)あるいは第5図(b
)に示すようなイメージファイバ母材を形成することが
できる。
Insert the piston-shaped insertion jig 5 into the jacket tube 2, and
When pushing the fiber bundle 1 to the desired position, look slightly downward from the entire inlet of the jacket tube 2 horizontally. By gently pushing in the optical Noah 1 bar elements fJ 1 a , it is possible to push them in in an aligned state without disintegrating them. Thus, FIG. 5(a) or FIG. 5(b)
) can form an image fiber preform as shown in FIG.

次に本発明によるイメージファイバ母材の製造方法の具
体的数値例について胱ゆ」′−!1″る。
Next, we will discuss a specific numerical example of the method for manufacturing an image fiber base material according to the present invention. 1"

外径250μ〃1.長さ250課の九ファイバ素線の多
数本を束ねて元ファイバ束を作り、これを内径40u、
厚さ1.5sa、長さ400r17Zのほぼ水平に設け
られたジャケン1−管に第4図(a)に示す如く、ピス
トン状挿入治具で押し込み、イメージファイバ母材を形
成した。次いて第1図に示すような加熱炉でイメージフ
ァイバR1材を加熱溶融・紡糸し、外径2.□sm、長
さl ]、 Omのイメージファイバ?得た。かくして
慴、られたイメージファイバの伝送画像には画素の乱れ
がなく、良好な伝送特性を得た。
Outer diameter 250μ〃1. A large number of 9-fiber wires each having a length of 250 sections are bundled together to form an original fiber bundle, and this is made into a fiber bundle with an inner diameter of 40u.
As shown in FIG. 4(a), the image fiber was inserted into a Jaken 1-tube having a thickness of 1.5 sa and a length of 400 mm and 17 mm, which was installed approximately horizontally, using a piston-shaped insertion jig to form an image fiber base material. Next, the image fiber R1 material is heated and melted and spun in a heating furnace as shown in FIG. □sm, length l ], Om image fiber? Obtained. In this way, the image transmitted through the image fiber had no pixel disturbance, and good transmission characteristics were obtained.

〈発明の効果〉 従来、予め規則的に平行に振列させた元ファイバ素線の
束を、緊線の配列を乱すことなく。
<Effects of the Invention> Conventionally, a bundle of original fiber strands that have been regularly arranged in parallel in advance can be made without disturbing the arrangement of the strands.

ジャケント管の中へ挿入することは困難な作業であった
が1本発明によるイメージファイバ母材の製造方法によ
れは、ジャケント管をを1ぽ水平に設置し、ビストノ状
挿入治具を甲いて1元ファイバ束の光フアイバ緊線の配
列を乱すことなく、予め整列された状態を保って、゛ジ
ャケット管内に挿入することができ、かくして得られた
イメージファイバ母材を加熱炉によって溶融紡糸して得
られたイメージファイバは画素の欠落や乱れがなく優れ
た画像伝送特性を示した。
Inserting the image fiber into the Jaquent tube was a difficult task, but according to the method of manufacturing the image fiber base material according to the present invention, the Jaquent tube was installed horizontally, and a biston-shaped insertion jig was used. The optical fibers of the single fiber bundle can be inserted into the jacket tube while maintaining their pre-aligned state without disturbing the arrangement, and the image fiber preform thus obtained is melt-spun in a heating furnace. The image fiber obtained by this method showed excellent image transmission characteristics without missing or distorted pixels.

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

第1図はマルチ法によるイメージファイバ製造方法を示
す装置の断面図、第2図はイメージファイバ母材の切開
図、第3図(a) 、 (b)は従来のイメージファイ
バ母材の製造方法における欠点を説明する図、餓4図(
a)に本発明によるイメージファイバfd材の製造方法
を示す装置の断面V。 紀4図(b)はピストン状和1大治其の外観図、第4図
(C)はビストノ状挿入治具の円形押し仮の1ljj面
図、第4図(d)は気孔を設けたビストノ状挿入治具の
断面図である。第5図(a) 、 (b)は本発明によ
って得られたイメージファイバ母材の断面図である。 図面中。 ■は九ファイバ束。 1afd光フアイバ素腺。 2はジャケット管。 3は加熱炉。 4はイメージファイバ。 5はピスト/状押入治具。 5aは円形押し扱。 5bは押込み棒。 6は円形状ひれ。 7は切り込み。 8は気孔である。 特許庁1願人 住友市、気工業株式会社 代理人 弁理士 元 石 士 部(他1名) 第1図 第2図 第4図 第5図 (oJ (bJ
Figure 1 is a cross-sectional view of an apparatus showing a method for manufacturing image fibers using the multi-method, Figure 2 is a cutaway view of an image fiber base material, and Figures 3 (a) and (b) are conventional methods for manufacturing image fiber base materials. A diagram explaining the shortcomings of
a) Cross section V of the apparatus showing the method for manufacturing the image fiber FD material according to the present invention. Fig. 4 (b) is an external view of the piston-shaped Wa 1 Daiji, Fig. 4 (C) is a 1ljj side view of the circular press of the biston-shaped insertion jig, and Fig. 4 (d) is the piston-shaped insertion jig. FIG. 3 is a cross-sectional view of the shaped insertion jig. FIGS. 5(a) and 5(b) are cross-sectional views of the image fiber preform obtained by the present invention. In the drawing. ■ is a nine-fiber bundle. 1afd optical fiber gland. 2 is a jacket tube. 3 is a heating furnace. 4 is an image fiber. 5 is a piston/pushing jig. 5a is treated as a circular push. 5b is a push rod. 6 is a circular fin. 7 is notch. 8 is a pore. Patent Office 1 Applicant Sumitomo City, Ki Kogyo Co., Ltd. Representative Patent Attorney Former Ishibe Shibu (and 1 other person) Figure 1 Figure 2 Figure 4 Figure 5 (oJ (bJ)

Claims (1)

【特許請求の範囲】[Claims] 元ファイバ素線を多数本平行に束ねた元ファイバ束を、
はぼ水平に設置したジャケン)W内に、ビス、ト/状挿
入治具を用いて、挿入することを特徴とするイメージフ
ァイバ母材の製造方法。
The original fiber bundle, which is made by bundling many original fiber strands in parallel, is
A method for producing an image fiber base material, which comprises inserting the image fiber into a horizontally installed jacket (W) using a screw, screw, or other-shaped insertion jig.
JP59119742A 1984-06-13 1984-06-13 Manufacture of image fiber base material Pending JPS60263907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59119742A JPS60263907A (en) 1984-06-13 1984-06-13 Manufacture of image fiber base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59119742A JPS60263907A (en) 1984-06-13 1984-06-13 Manufacture of image fiber base material

Publications (1)

Publication Number Publication Date
JPS60263907A true JPS60263907A (en) 1985-12-27

Family

ID=14769007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59119742A Pending JPS60263907A (en) 1984-06-13 1984-06-13 Manufacture of image fiber base material

Country Status (1)

Country Link
JP (1) JPS60263907A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182230A (en) * 1987-01-20 1988-07-27 Mitsubishi Cable Ind Ltd Production of image guide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182230A (en) * 1987-01-20 1988-07-27 Mitsubishi Cable Ind Ltd Production of image guide

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