JPH04187537A - Method for preparing image fiber - Google Patents
Method for preparing image fiberInfo
- Publication number
- JPH04187537A JPH04187537A JP2314339A JP31433990A JPH04187537A JP H04187537 A JPH04187537 A JP H04187537A JP 2314339 A JP2314339 A JP 2314339A JP 31433990 A JP31433990 A JP 31433990A JP H04187537 A JPH04187537 A JP H04187537A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- image fiber
- rod
- glass
- glass rod
- 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
- 239000000835 fiber Substances 0.000 title claims description 24
- 238000000034 method Methods 0.000 title claims description 16
- 239000011521 glass Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 20
- 238000005253 cladding Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture 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
- C03B37/01214—Manufacture 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/40—Multifibres 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
Description
【発明の詳細な説明】
（産業上の利用分野〕
この発明は、画素の配列が正確になされたイメージファ
イバを簡単に製造でき、また多心化の容易な方法を提供
する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides an easy method for manufacturing an image fiber in which pixels are accurately arranged and for increasing the number of fibers.
〔従来の技ｆ４ｉ及び発明が解決しようとする課題〕一
般的なイメージファイバの製造方法は、予め多数のイメ
ージファイバ用素線を用意し、これら素線をガラス管内
に詰込んで母材とし、この母材を一端から溶融線引きす
る方法である。[Prior art f4i and problems to be solved by the invention] A general method for manufacturing an image fiber is to prepare a large number of image fiber strands in advance, pack these strands into a glass tube as a base material, This method involves melting and wire-drawing this base material from one end.
この方法では、丸いガラス管の中に多数の丸い素線を詰
込んでいるため溶融一体化する時に最密六方構造をとる
ことは不可能であり、時として異形に変形するというこ
とがあった。In this method, it is impossible to obtain a close-packed hexagonal structure when melting and integrating a large number of round strands into a round glass tube, and the wires sometimes deform into irregular shapes. .
このため、線引き時の泡の発生原因をなしたり画素の配
列の乱れから品質の低下を招くということがあった。This has caused bubbles to be generated during line drawing, and the quality has deteriorated due to disordered pixel arrangement.
また、この方法では１０万画素程度の少ない画素数であ
れば、さほど問題にならないが、１００万画素程度の多
心化を図ろうとするには不適であった。Further, this method does not pose much of a problem if the number of pixels is as small as about 100,000 pixels, but it is not suitable for attempting to increase the number of pixels to about 1 million pixels.
その理由は、製造技術上の関係からガラス管の外径は大
きくても６０ｍｍ＜らいであり、画素数を増やすには詰
込む素線の外径を小さくしなければならない。しかし、
素線の外径が小さいと取扱いが難しくなり、詰込む際に
折れたり、ねじれたりするなど問題が生じてしまう。The reason for this is that, due to manufacturing technology, the outer diameter of the glass tube is at most 60 mm or less, and in order to increase the number of pixels, the outer diameter of the wires to be packed must be reduced. but,
If the outside diameter of the strands is small, handling becomes difficult, and problems such as bending or twisting occur when stuffing.
この発明は、以上の観点から泡の発生や画素の配列の乱
れがなく、かつ多心化の可能なイメージファイバの製造
方法を従供しようとするもので、その特徴とする第１の
請求項の発明は、クラッドとなる円柱状ガラスロッドに
軸方向に所定間隔をおいて多数の孔を形成し、この孔内
にコア部分を含むガラスロッドを挿入して母材となし、
この母材を一端から溶融線引きすることにある。また、
その第２の請求項の発明は、請求項１記載のイメージフ
ァイバを所定長さに切断して多数のイメージファイバ用
素線とし、これら素線をガラス管内に詰込んで母材とな
し、この母材を一端から溶融線引きすることにある。In view of the above, the present invention aims to provide a method for manufacturing an image fiber that does not generate bubbles or disturb the pixel arrangement and can be multi-fibered. In the invention, a large number of holes are formed at predetermined intervals in the axial direction in a cylindrical glass rod serving as a cladding, and a glass rod including a core portion is inserted into the holes to serve as a base material.
The purpose is to melt and wire-draw this base material from one end. Also,
The invention of the second claim is such that the image fiber according to claim 1 is cut into a predetermined length to obtain a large number of image fiber strands, and these strands are stuffed into a glass tube as a base material. The process involves melting and drawing the base material from one end.
なお、ここでコア部分を含むガラスロッドとはコアとな
る部分のみからなるロット′だけでなく、コアとなる部
分の周りにクランドの一部が形成されたロッドをさして
いる。Note that the glass rod including a core portion herein refers not only to a lot consisting only of the core portion, but also to a rod in which a part of the crund is formed around the core portion.
クラ・７ドとなる丸いロッドの軸方向に沿って配列よく
形成した丸い孔内にコアとなる部分を含むガラスロッド
を収容して母材とするので、その溶融一体化時に泡が発
生せず、また予めコア間は所定の間隔であるので画素と
しての間隔は一定となる。また、こうして得られたもの
を素線として多数集めてガラス管内に入れ、これを母材
とするので多くの画素数のものとなる。Since the glass rod containing the core part is housed in the round holes that are well arranged along the axial direction of the round rod that becomes the Clad 7 and used as the base material, no bubbles are generated when the glass rod is melted and integrated. Also, since the cores are spaced at a predetermined distance in advance, the space between the pixels is constant. In addition, since a large number of wires obtained in this way are collected and put into a glass tube, and this is used as a base material, a large number of pixels can be obtained.
第１ａｘｃ図は、この発明方法の−°例を示したもので
ある。第１ａ図において、１はクラッドとなる例えばＦ
ドープＳｉＯ□ガラスロッドで、超音波加工により等間
隔に多数の孔２があけられている。第１ｂ図において、
３はコアとなるＧｅドープ５ｉｎ２ガラスロツドで、そ
の径は上記孔２に嵌挿されるサイズとされている。そし
た、これらコア用ガラスロッド３をクラッドとなる口・
ノド１の孔２内にそれぞれ嵌挿させて母材４とし、第１
Ｃ図に示すように加熱炉５を構成するカーボン製の円筒
状マンフルチューブ６内に導き、カーボンヒータ７を用
いて溶融線引きしてイメージファイバ８とする。FIG. 1axc shows a −° example of the method of the invention. In FIG. 1a, 1 is the cladding, e.g.
It is a doped SiO□ glass rod, and a large number of holes 2 are made at equal intervals by ultrasonic processing. In Figure 1b,
Reference numeral 3 denotes a Ge-doped 5in2 glass rod serving as a core, and its diameter is set to a size that allows it to be inserted into the hole 2. Then, these glass rods 3 for the core are connected to the mouth and the cladding.
They are inserted into the holes 2 of the throat 1 to form the base material 4, and the first
As shown in Fig. C, the fiber is guided into a cylindrical manful tube 6 made of carbon that constitutes a heating furnace 5, and is melted and drawn using a carbon heater 7 to form an image fiber 8.
第２図は、この発明方法による多心化の例で、１０はガ
ラス管、１２はこのガラス管１０内に詰込まれたイメー
ジファイバ用素線で、上記第１ａ〜Ｃ図に示す方法によ
り得られた、多数のコアを有するイメージファイバを所
定長さに切断したものである。この母材を常法により一
端から溶融線引きすると多心のイメージファイバが得ら
れる。FIG. 2 shows an example of multi-core fiber formation by the method of the present invention, where 10 is a glass tube, 12 is an image fiber strand packed in this glass tube 10, and the method shown in FIGS. 1a to 1C above is used. The obtained image fiber having a large number of cores is cut into a predetermined length. A multi-core image fiber is obtained by melt-drawing this base material from one end using a conventional method.
（具体例１）
クランドとなる円柱状ガラスロッドとして直径６０Ｉｌ
ｌＩｌｌ、長さ２００＋ｎ＋＋＋、屈折率が１．４４８
のＦドープ石英ガラスを用いた。これはＶＡＤ法で作製
されたＳｉｎ、ガラス微粒子を５ｉＦａの雰囲気で透明
ガラス化したものである。(Specific example 1) A cylindrical glass rod serving as a clamp has a diameter of 60Il.
lIll, length 200+n+++, refractive index 1.448
F-doped quartz glass was used. This is made by converting Sin and glass fine particles produced by the VAD method into transparent glass in an atmosphere of 5iFa.
このガラスロッドに直径２．１＋ｎｍの孔を超音波孔あ
け法により５００か所配列よくあけた。In this glass rod, 500 holes with a diameter of 2.1+ nm were drilled in a well-arrayed manner using an ultrasonic drilling method.
この孔の中に直径が２゜０ＬｌｌＩ１１、屈折率が１
、５０２のコアとなるＧｅドープ石英ガラスロッドを詰
込んだ。こうして得られた母材を１９００℃の加熱炉内
に入れて一端から溶融線引きして外径１２５ 頗
、画素間隔が約５霞のイメージファイバとした。Inside this hole, the diameter is 2°0LllI11 and the refractive index is 1.
, 502 was packed with a Ge-doped quartz glass rod. The base material thus obtained was placed in a heating furnace at 1900° C. and melted and drawn from one end to form an image fiber having an outer diameter of 125 mm and a pixel interval of about 5 haze.
このイメージファイバは、泡もなく配列乱れもない最密
六方構造のものであった。This image fiber had a close-packed hexagonal structure with no bubbles and no disordered arrangement.
（具体例２）
クラッドとなる円柱状のＦビー１石英ガラスロッドを用
意した。このロッドは外径５０ｍｍ、長さ３００ｍｍ、
屈折率が１．４４８である。このロッドに外径５Ｉの孔
を１０か所等間隔になるようにあけた。そして、この孔
内に外径４．９ｍｍのコアとなるＧｅドープＳｉｎ□ガ
ラスロッドを挿入した。(Specific Example 2) A cylindrical F-Bee 1 quartz glass rod serving as a cladding was prepared. This rod has an outer diameter of 50mm, a length of 300mm,
The refractive index is 1.448. Ten holes with an outer diameter of 5I were drilled in this rod at equal intervals. Then, a Ge-doped Sin□ glass rod having an outer diameter of 4.9 mm and serving as a core was inserted into this hole.
このロッドはＶＡＤ法によって作製された屈折率が１．
５０２のものである。This rod was manufactured by VAD method and has a refractive index of 1.
502.
こうして得られた母材を一端から溶融線引きして外径１
６２ｎの１０個の画素を有する素線とした。この素線を
３００ｍｍの長さに切断して】Ｏ万本集め、これを外径
６０ｍｍ、内径５４’ｍｍの石英ガラ□ス管内に詰込ん
だ。この母材を一端から溶融線引きして外径２．２１の
１００万画素からなる多心のイメージファイバを得た。The base material thus obtained was melt-drawn from one end to have an outer diameter of 1
The wire had 10 pixels of 62n. This wire was cut into lengths of 300 mm, collected, and packed into a quartz glass tube with an outer diameter of 60 mm and an inner diameter of 54' mm. This base material was melt-drawn from one end to obtain a multi-core image fiber having an outer diameter of 2.21 and consisting of 1 million pixels.
［発明の効果］
クラッドとなるロッドに所定間隔ごとに多数の孔をあけ
、この孔内にコアとなる部分を含むロッドを挿入して母
材とし、この母材を一端から溶融線引きしてファイバ化
する方法であるので、コアロッドとクラッドロッド間の
間隙が小さく泡の発生を抑制できる。また、コア間隔は
一定であり配列の乱れがない。[Effect of the invention] A large number of holes are drilled at predetermined intervals in a rod that will become a cladding, a rod containing a core portion is inserted into the holes to form a base material, and this base material is melted and drawn from one end to form a fiber. Since this is a method in which the gap between the core rod and the cladding rod is small, the generation of bubbles can be suppressed. Furthermore, the core spacing is constant and there is no disorder in the arrangement.
さらに、上記多数のコアを有する母材をガラス管内ムこ
多数詰込み、これを母材とし、この母材を一端から溶融
線引きしてファイバ化することにより多心化が可能であ
る。Furthermore, multi-core fibers can be obtained by filling a glass tube with a preform having a large number of cores, using this as a preform, and melting and drawing the preform from one end to form a fiber.
第１ａ〜Ｃ図は、この発明の一実施例を示す説明図、第
２図は、この発明の他の例を示す説明ばである。
１：クラッドとなるガラスロッド、２：孔、３：コアと
なるガラスロッド、４：母材。
第１ｃ図
ヱ1a to 1C are explanatory views showing one embodiment of the present invention, and FIG. 2 is an explanatory view showing another example of the present invention. 1: Glass rod serving as cladding, 2: Hole, 3: Glass rod serving as core, 4: Base material. Figure 1c
Claims (1)
定間隔をおいて多数の孔を形成し、この孔内にコア部分
を含むガラスロッドを挿入して母材となし、この母材を
一端から溶融線引きすることを特徴とするイメージファ
イバの製造方法。 ２、請求項１記載のイメージファイバを所定長さに切断
して多数のイメージファイバ用素線とし、これら素線を
ガラス管内に詰込んで母材となし、この母材を一端から
溶融線引きすることを特徴とするイメージファイバの製
造方法。[Claims] 1. A large number of holes are formed at predetermined intervals in the axial direction in a cylindrical glass rod that serves as the cladding, and the glass rod containing the core portion is inserted into the holes to serve as the base material. , a method for manufacturing an image fiber, characterized in that this base material is melt-drawn from one end. 2. Cutting the image fiber according to claim 1 into a predetermined length to obtain a large number of image fiber strands, packing these strands into a glass tube to form a base material, and melting and drawing this base material from one end. A method for manufacturing an image fiber, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2314339A JPH04187537A (en) | 1990-11-21 | 1990-11-21 | Method for preparing image fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2314339A JPH04187537A (en) | 1990-11-21 | 1990-11-21 | Method for preparing image fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04187537A true JPH04187537A (en) | 1992-07-06 |
Family
ID=18052140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2314339A Pending JPH04187537A (en) | 1990-11-21 | 1990-11-21 | Method for preparing image fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04187537A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050051118A (en) * | 2003-11-27 | 2005-06-01 | 삼성전자주식회사 | Plastic fiber, preform of plastic fiber and method for fabricating thereof |
| WO2005076047A1 (en) * | 2004-02-06 | 2005-08-18 | Matthew Henderson | Optical product with integral terminal part |
-
1990
- 1990-11-21 JP JP2314339A patent/JPH04187537A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050051118A (en) * | 2003-11-27 | 2005-06-01 | 삼성전자주식회사 | Plastic fiber, preform of plastic fiber and method for fabricating thereof |
| WO2005076047A1 (en) * | 2004-02-06 | 2005-08-18 | Matthew Henderson | Optical product with integral terminal part |
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