JPS61259207A - Optical conductor and its production and cylinder body used therfor - Google Patents
Optical conductor and its production and cylinder body used therforInfo
- Publication number
- JPS61259207A JPS61259207A JP60102389A JP10238985A JPS61259207A JP S61259207 A JPS61259207 A JP S61259207A JP 60102389 A JP60102389 A JP 60102389A JP 10238985 A JP10238985 A JP 10238985A JP S61259207 A JPS61259207 A JP S61259207A
- Authority
- JP
- Japan
- Prior art keywords
- optical fibers
- plastic optical
- optical fiber
- cylindrical body
- cylinder body
- 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
- 230000003287 optical effect Effects 0.000 title abstract description 5
- 238000004519 manufacturing process Methods 0.000 title description 7
- 239000004020 conductor Substances 0.000 title 1
- 239000013307 optical fiber Substances 0.000 abstract description 25
- 239000013308 plastic optical fiber Substances 0.000 abstract description 21
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000003780 insertion Methods 0.000 abstract description 7
- 230000037431 insertion Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000005498 polishing Methods 0.000 abstract description 2
- 239000011241 protective layer Substances 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Couplings Of Light Guides (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、各種センサー、ライトガイド等の光伝送路と
して用いるプラスチック系光ファイバー製の導光体、そ
の製造方法およびこれに用いる筒体に関するものである
。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a light guide made of plastic optical fiber used as an optical transmission path for various sensors, light guides, etc., a method for manufacturing the same, and a cylinder used therefor. It is.
（従来の技術）
プラスチック系光ファイバーは、その製造工程で延伸し
ているため、これを加熱すると直径方向に膨大化すると
いう特徴を有している。(Prior Art) Since plastic optical fibers are stretched during the manufacturing process, they have the characteristic of expanding in the diameter direction when heated.
このような特徴！利用し、プラスチック系光ファイバー
の端部に嵌合したフェルール等と称される筒体の固着を
行なうことは１％公昭５６−４７５２４号公報、特開５
７−１８１５１３号公報および特開昭５８−１８７９０
３号公報等が知られている。Such features! It is known in Japanese Publication No. 56-47524 and Japanese Unexamined Patent Publication No. 56-47524 that a cylindrical body called a ferrule or the like fitted to the end of a plastic optical fiber is fixed by using a plastic optical fiber.
Publication No. 7-181513 and JP-A-58-18790
Publication No. 3, etc. are known.
Ｃ発明が解決しようとする問題点〕
ところで上記公知の方法で複数本のプラスチック系光フ
ァイバー！筒体に嵌合、固着しようとする場合１個々の
光ファイバーが加熱されて膨大化するため、押圧力が加
わり、断面形状が六角形等の多角形状となってしまう６
しかしながら、プラスチック系光ファイバーの断面が上
記の如く多角形状となることは、光の伝送効率を悪くす
ることが知られており、また投光や受光に対する影響も
あり極力さけることが望ましい。Problems to be solved by invention C] By the way, multiple plastic optical fibers can be produced using the above-mentioned known method! When attempting to fit and secure the fiber into a cylinder 1. Each optical fiber heats up and becomes enlarged, so a pressing force is applied and the cross-sectional shape becomes a polygon such as a hexagon 6
However, it is known that the plastic optical fiber has a polygonal cross section as described above, which deteriorates the light transmission efficiency and also has an effect on light emission and light reception, so it is desirable to avoid this as much as possible.
本発明は、このような状況に鑑み、複数本のプラスチッ
ク系光ファイバーを筒体に嵌合した導光体でありながら
上記の如き“光の伝送効率を低下させない導光体とその
製造方法およびこれに用いる筒体を提供しようとするも
のである。In view of this situation, the present invention provides a light guide that does not reduce the light transmission efficiency even though it is a light guide in which a plurality of plastic optical fibers are fitted into a cylindrical body, a method for manufacturing the same, and a light guide that does not reduce the light transmission efficiency. The purpose is to provide a cylindrical body for use in
ｃ問題点を解決するための手段）
すなわち本発明は、上記の′目的全達成するためになさ
れたもので、その要旨とするところは。c) Means for Solving the Problems) That is, the present invention has been made to achieve all of the above objects, and its gist is as follows.
２本以上のプラスチック系光ファイバーの少なくとも一
端に筒体を嵌合してなる導光体であって１個々のプラス
チック系光ファイバーを嵌入させる区分は円筒を内包す
る筒体が用いられており、この区分は円筒に嵌合された
個々のプラスチック系光ファイバーが加熱によって膨大
化して固着されていることＹ’ＦｊＪ徴とする導光体を
第１の発明とし、使用するプラスチック系光ファイバー
の本数に応じて複数の区分は円筒が内包された筒体？用
意し、この筒体の各区分は円筒内にプラスチック系光フ
ァイバーを挿通して該筒体の有効面側に臨ませ、有効面
側から加熱してプラスチック系光ファイバーを直径方向
に膨大化させて固着することを特徴とする導光体の製造
方法を第２の発明とし、さらにプラスチック系光ファイ
バーを個々に嵌合しうる区分は円筒を複数個内包してい
ることを特徴とする導光体の製造に用いる筒体Ｖ第３の
発明とするところにある。It is a light guide formed by fitting a cylindrical body to at least one end of two or more plastic optical fibers, and the section into which one individual plastic optical fiber is fitted is a cylindrical body containing a cylinder, and this section The first invention is a light guide in which individual plastic optical fibers fitted into a cylinder are enlarged and fixed by heating, and a plurality of plastic optical fibers can be used depending on the number of plastic optical fibers used. Is the classification a cylindrical body with a cylinder inside? Each section of this cylindrical body has a plastic optical fiber inserted into the cylinder so as to face the effective surface side of the cylindrical body, and heated from the effective surface side to enlarge the plastic optical fiber in the diametrical direction and fix it. A second invention provides a method for manufacturing a light guide, characterized in that the sections into which plastic optical fibers can be fitted individually include a plurality of cylinders. The third aspect of the present invention is the cylindrical body V used for the invention.
以下１本発明の実施例の図面に従って説明する。An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の導光体を示しており１図中（１１が２
本構成のプラスチック系光ファイバーＣ以下、単に光フ
ァイバーということがある）。Figure 1 shows the light guide of the present invention, and in Figure 1 (11 is 2
The plastic optical fiber C of this configuration is sometimes simply referred to as an optical fiber).
（２）が筒体である。(2) is a cylinder.
このうちのプラスチック系光ファイバー（１）としては
、芯材がアクリル樹脂、鞘材が含フツソ樹脂からなるも
の、芯材がスチレン樹脂、鞘材がアクリル樹脂等からな
るものが用いられるが勿論これに限定されない。この光
ファイバー（１）は第２図に示すようにバルクファイバ
ーＣ１１）の外周にポリエチレン等の保護層（１２）が
形成されている。Among these, plastic optical fibers (1) include those whose core material is acrylic resin and whose sheath material is made of fluorine-containing resin, and those whose core material is styrene resin and sheath material is acrylic resin, etc. Not limited. As shown in FIG. 2, this optical fiber (1) has a protective layer (12) made of polyethylene or the like formed around the outer periphery of the bulk fiber C11).
また、筒体（２）は真ちゅう、ステンレス鋼等の金属な
らびにセラミックス製等のものが用いられる。図示した
例では外周にねじ（２５）が形成されているが、これに
限定されるものではなくその形状等も任゛意のものが用
いられる、この筒体（２１を第３図（Ａｌ−（Ｃ１に基
づいてさらに説明すると。Further, the cylindrical body (2) is made of metal such as brass or stainless steel, or ceramic. In the illustrated example, a screw (25) is formed on the outer periphery, but the shape is not limited to this and any shape can be used. (Further explanation based on C1.
■が有効面側で（２）が挿入側であり、（２１）が２つ
の近接して設けられた区分は円筒、 （２３）がこれと
連通ずるテーパ一孔、 （２２）が長円状の挿入孔であ
る。また（２４）は２つの区分は円筒Ｃ２１）を仕切る
仕切り壁、（２１Ａ）は区分は円筒（２１）の縁取りで
ある。この例では２つの区分は円筒（２１）が一体的に
形成されているが、別々の円筒が内包されていてもよい
。■ is the effective surface side, (2) is the insertion side, (21) is a cylinder with two adjacent sections, (23) is a tapered hole that communicates with this, and (22) is an oblong shape. This is the insertion hole. Further, (24) is a partition wall that partitions the cylinder C21) into two sections, and (21A) is the rim of the cylinder (21). In this example, the cylinders (21) are integrally formed in the two sections, but separate cylinders may be enclosed therein.
次に本発明の製造方法について説明すると。Next, the manufacturing method of the present invention will be explained.
まず上記の如き筒体（２）を用意し、同様に２本構成の
光ファイバー（１）！用意する。そして、この光ファイ
バー＋１１の筒体（２１に挿通する先端部の保Ｉｌ１層
Ｃｌ２）を除去し、筒体（２）の挿入側（２）から挿入
し、先端を有効面側囚に臨ませる。このとき筒体（２１
の挿入孔（２２）’に図示する如く長円状にしておくと
、２本の光ファイバー（１）ヲ安定よく挿入することが
でき、しかも筒体（２）の肉厚を増して強度！高めるこ
とができる。First, prepare the cylindrical body (2) as described above, and use the same two-piece optical fiber (1)! prepare. Then, the cylindrical body of the optical fiber +11 (the protective Il1 layer Cl2 at the tip inserted into 21) is removed, and the optical fiber +11 is inserted from the insertion side (2) of the cylindrical body (2) so that the tip faces the effective surface side. At this time, the cylinder (21
If the insertion hole (22)' is made into an oval shape as shown in the figure, the two optical fibers (1) can be inserted stably, and the thickness of the cylinder (2) is increased to increase its strength! can be increased.
このように光ファイバー（１）を筒体（２）に挿通した
ときは、必要に応じて挿通孔（２２）に接着剤を注入し
て固定するとよい。そしてこの状態で。When the optical fiber (1) is inserted into the cylindrical body (2) in this way, it may be fixed by injecting an adhesive into the insertion hole (22) if necessary. And in this state.
有効面側■より例えば火炎を短時間走行させる等の方法
で加熱し、光ファイバー（１）を直径方向に膨大化させ
て固Ｎを行なう、このとき光ファイバーの先端は、纂２
図の如く平滑な曲面（１３）となり、研摩の効果も同時
に発揮される。同図において曲面（１３）は若干突出し
ているが、目的によっては有効面側■より内側であって
もよい。The optical fiber (1) is heated by a method such as running a flame for a short time from the effective surface side (2) to expand the optical fiber (1) in the diametrical direction and harden the N. At this time, the tip of the optical fiber (1)
As shown in the figure, a smooth curved surface (13) is obtained, and the polishing effect is also exhibited at the same time. In the figure, the curved surface (13) protrudes slightly, but depending on the purpose, it may be located inside the effective surface (1).
以上のようにして得られた導光体は、２本の光ファイバ
ー（１）が１つの筒体（２）に近接して嵌合。In the light guide obtained as described above, two optical fibers (1) are closely fitted into one cylinder (2).
固定されて１つの筒体（２）ヲ有するものとなるが。It is fixed and has one cylindrical body (2).
光ファイバー（１）自体の真円性は何等損われないため
、光伝送性！低下させたり、投光、受光の効率に悪影響
を及ぼすことはない。なお図示の実施例においては、光
ファイバー（１１が２本の導光体および筒体（２）につ
いて説明しているが、これを３本以上のものにしても十
分適用できる。The circularity of the optical fiber (1) itself is not impaired in any way, so optical transmission is excellent! It does not reduce the light output or adversely affect the efficiency of light emission and light reception. In the illustrated embodiment, the light guide body and cylinder body (2) having two optical fibers (11) are described, but it is also possible to use three or more optical fibers.
（実施例） 第３図に示すものと同じ真ちゅう製の筒体を用意した。(Example) A brass cylinder similar to that shown in FIG. 3 was prepared.
このときの筒体の長さは１７■１区分は円筒の内径がＩ
ｍであった。そしてこの筒体に、２本のプラスチック系
光ファイバー「エスカ」 （三菱レイヨン社製 直径１
園）Ｚ第２図の要領で挿通し、先端！有効面側に臨ませ
。The length of the cylinder at this time is 17. The inner diameter of the cylinder for one division is I.
It was m. Then, in this cylinder, two plastic optical fibers "ESCA" (manufactured by Mitsubishi Rayon Co., Ltd., diameter 1
Z) Insert it as shown in Figure 2 and insert the tip! Face the effective side.
ハープ社製小型ガス発生器による火炎上（約６００℃と
なる位置）を約１秒量産行させて加熱処理した。The heat treatment was carried out by mass producing flames (at a position of about 600° C.) for about 1 second using a small gas generator manufactured by Harp.
得られた導光体は、は′ｉ第２図に示す通りももので、
先端の平滑面の光沢高は９７％もあり。The obtained light guide was as shown in Figure 2.
The gloss level of the smooth surface of the tip is as high as 97%.
しかも２本の光ファイバーは区分は円筒に規制されて実
質的に真円性を維持した良好なものであった。Furthermore, the two optical fibers were of good quality, with their sections being regulated into cylinders and substantially maintaining roundness.
Ｃ発明の効果）
本発明は以上詳述した如き構成からなるものであるから
、光フアイバー全体にわたって実質的に真円性を保持す
ることができ、この結果光伝送性を低下させることのな
い、しかも投光や受光の効率に影響を及ぼすことのない
優れた導光体が得られると共に、このよ５な導光体を能
率よく製造でき、さらにはこのような導光体に用いる浸
れた筒体を提供しうる利点がある。C) Effects of the invention) Since the present invention has the configuration as detailed above, it is possible to maintain substantially circularity throughout the optical fiber, and as a result, the optical fiber is not deteriorated in optical transmission performance. Moreover, it is possible to obtain an excellent light guide that does not affect the efficiency of light transmission or light reception, and it is possible to efficiently manufacture such five types of light guides. It has the advantage of providing the body.
第１図は本発明の一実施例の導光体を示す斜視図、第２
図はその要部の断面図、第３図（２）は本発明に使用す
る筒体の正面断面図、同図（ＢＪは左側面図、同図に）
は右側面図である。
（１）・・・プラスチック系光ファイバー（２）・・・
筒体
（２１）・・・区分は円筒
■・・・有効面側FIG. 1 is a perspective view showing a light guide according to an embodiment of the present invention, and FIG.
The figure is a cross-sectional view of the main part, and Figure 3 (2) is a front cross-sectional view of the cylinder used in the present invention.
is a right side view. (1)...Plastic optical fiber (2)...
Cylindrical body (21)...Classification is cylindrical■...Effective surface side
Claims (1)
も一端に筒体を嵌合してなる導光体であつて、個々のプ
ラスチック系光ファイバーを嵌入させる区分け円筒を内
包する筒体が用いられており、この区分け円筒に嵌合さ
れた個々のプラスチック系光ファイバーが加熱によつて
膨大化して固着されていることを特徴とする導光体。 ２、使用するプラスチック系光ファイバーの本数に応じ
て複数の区分け円筒が内包された筒体を用意し、この筒
体の各区分け円筒内にプラスチック系光ファイバーを挿
通して該筒体の有効面側に臨ませ、有効面側から加熱し
てプラスチック系光ファイバーを直径方向に膨大化させ
て固着することを特徴とする導光体の製造方法。 ３、プラスチック系光ファイバーを個々に嵌合しうる区
分け円筒を複数個内包していることを特徴とする導光体
の製造に用いる筒体。[Scope of Claims] A light guide formed by fitting a cylindrical body to at least one end of one or more plastic optical fibers, the cylindrical body containing a dividing cylinder into which each plastic optical fiber is fitted. 1. A light guide characterized in that individual plastic optical fibers fitted into the dividing cylinder are enlarged and fixed by heating. 2. Prepare a cylindrical body containing a plurality of dividing cylinders according to the number of plastic optical fibers to be used, and insert a plastic optical fiber into each dividing cylinder of this cylindrical body to the effective surface side of the cylindrical body. A method for manufacturing a light guide, which comprises heating the plastic optical fiber from the effective surface side to expand the plastic optical fiber in the diameter direction and fix it. 3. A cylinder used for manufacturing a light guide, characterized by containing a plurality of divided cylinders into which plastic optical fibers can be fitted individually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60102389A JPS61259207A (en) | 1985-05-14 | 1985-05-14 | Optical conductor and its production and cylinder body used therfor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60102389A JPS61259207A (en) | 1985-05-14 | 1985-05-14 | Optical conductor and its production and cylinder body used therfor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61259207A true JPS61259207A (en) | 1986-11-17 |
Family
ID=14326092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60102389A Pending JPS61259207A (en) | 1985-05-14 | 1985-05-14 | Optical conductor and its production and cylinder body used therfor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61259207A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6429807A (en) * | 1987-07-24 | 1989-01-31 | Furukawa Electric Co Ltd | Fusion connecting method for plastic clad optical fiber |
| JPH01205105A (en) * | 1988-02-10 | 1989-08-17 | Hokuyo Automatic Co | Detecting element structure for optical fiber |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722082A (en) * | 1980-07-11 | 1982-02-04 | Serabisu Sa | Printing controller for single type holding element of typewriter and similar device |
| JPS5735442A (en) * | 1980-08-12 | 1982-02-26 | Canon Inc | Signal transmission system |
| JPS57181513A (en) * | 1981-05-01 | 1982-11-09 | Mitsubishi Rayon Co Ltd | Photoconductor, production thereof and cylindrical body used for it |
| JPS58187903A (en) * | 1982-04-28 | 1983-11-02 | Mitsubishi Rayon Co Ltd | Manufacture of photoconductor |
| JPS5921531A (en) * | 1982-07-09 | 1984-02-03 | エムハ−ト・インダストリ−ズ・インコ−ポレ−テツド | Feeder mechanism for supplying seed of plastic substance |
| JPS59212811A (en) * | 1983-05-18 | 1984-12-01 | Sumitomo Electric Ind Ltd | Terminal fixing method of optical fiber |
-
1985
- 1985-05-14 JP JP60102389A patent/JPS61259207A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722082A (en) * | 1980-07-11 | 1982-02-04 | Serabisu Sa | Printing controller for single type holding element of typewriter and similar device |
| JPS5735442A (en) * | 1980-08-12 | 1982-02-26 | Canon Inc | Signal transmission system |
| JPS57181513A (en) * | 1981-05-01 | 1982-11-09 | Mitsubishi Rayon Co Ltd | Photoconductor, production thereof and cylindrical body used for it |
| JPS58187903A (en) * | 1982-04-28 | 1983-11-02 | Mitsubishi Rayon Co Ltd | Manufacture of photoconductor |
| JPS5921531A (en) * | 1982-07-09 | 1984-02-03 | エムハ−ト・インダストリ−ズ・インコ−ポレ−テツド | Feeder mechanism for supplying seed of plastic substance |
| JPS59212811A (en) * | 1983-05-18 | 1984-12-01 | Sumitomo Electric Ind Ltd | Terminal fixing method of optical fiber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6429807A (en) * | 1987-07-24 | 1989-01-31 | Furukawa Electric Co Ltd | Fusion connecting method for plastic clad optical fiber |
| JPH0576003B2 (en) * | 1987-07-24 | 1993-10-21 | Furukawa Electric Co Ltd | |
| JPH01205105A (en) * | 1988-02-10 | 1989-08-17 | Hokuyo Automatic Co | Detecting element structure for optical fiber |
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