JPS6283328A - Production of optical fiber bundle - Google Patents
Production of optical fiber bundleInfo
- Publication number
- JPS6283328A JPS6283328A JP60220564A JP22056485A JPS6283328A JP S6283328 A JPS6283328 A JP S6283328A JP 60220564 A JP60220564 A JP 60220564A JP 22056485 A JP22056485 A JP 22056485A JP S6283328 A JPS6283328 A JP S6283328A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber bundle
- light
- plastics
- flexible
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000004033 plastic Substances 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 230000009975 flexible effect Effects 0.000 claims abstract description 15
- 230000001678 irradiating effect Effects 0.000 claims abstract 2
- 230000006378 damage Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 4
- 238000000016 photochemical curing Methods 0.000 description 4
- ILBBNQMSDGAAPF-UHFFFAOYSA-N 1-(6-hydroxy-6-methylcyclohexa-2,4-dien-1-yl)propan-1-one Chemical compound CCC(=O)C1C=CC=CC1(C)O ILBBNQMSDGAAPF-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- 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、可撓性を有する光学繊維束の製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a flexible optical fiber bundle.
現在、イメージガイド、ライトガイドなどに使用される
光学繊維束には、端部に固定部を形成する他、中間部に
可撓部を形成したものが用いられる。そして、可撓部に
て屈曲性能を生み出している。Currently, optical fiber bundles used for image guides, light guides, and the like have fixed portions formed at the ends and flexible portions formed in the middle portion. The flexible portion provides bending performance.
ところで、こうした可撓性を有する光学繊維束本体は、
たとえば外周に可溶ガラスを被覆した３重光学ｉｌｌを
多数本、束ねて溶着し、これを加熱して延伸し、得られ
る硬い光学繊維束の端部を被覆し、その後、全体を酸に
接触させて光学ｔＩ維の中間部分から可溶ガラスを溶出
することにより製作される。これは−例であるが、こう
した光学繊維束には、端部の固定部と中間部の可撓部と
の境界部に曲げ応力が集中するといった問題をもち、光
学［１１に発生しやすい欠点がある。By the way, the optical fiber bundle main body having such flexibility is
For example, a large number of triple optical illuminations coated with fusible glass on the outer periphery are bundled and welded, heated and stretched, the ends of the resulting hard optical fiber bundle are coated, and then the whole is exposed to acid. It is manufactured by eluating soluble glass from the middle part of the optical tI fiber. This is just an example, but such optical fiber bundles have the problem that bending stress is concentrated at the boundary between the fixed part at the end and the flexible part at the middle, a drawback that tends to occur in optical fiber bundles. There is.
そこで、こうした欠点に対し、境界部に光硬化性のプラ
スチックを充填し、この光硬化性のプラスチックに向は
光源から紫外線を照射して、プラスチックを光硬化させ
て補強するようにした技術が提案されている（特開昭５
９−１８１３０５号公報、特開昭１２１４０２号公報）
。To address these drawbacks, a technology has been proposed in which the boundary area is filled with photocurable plastic, and the photocurable plastic is irradiated with ultraviolet light from a light source to photocure and strengthen the plastic. (Unexamined Japanese Patent Publication No. 5
9-181305, Japanese Patent Application Laid-Open No. 121402)
.
Ｃ発明が解決しようとする問題点〕
先行技術は、いずれも光源を境界部の近く（特開昭５９
−１８１３０５号公報では側部材、特開昭１２１４０２
号公報では固定部側）に設置して紫外光を直接、プラス
チックに照射して、これにてプラスチックを光硬化して
いるが、こうした照射では光源の熱がそのまま光学繊維
に入射してしまう問題がある。このため、光学繊維では
熱により膨張してクラックが発生したり、プラスチック
が熱で収縮を起こして中間部の光学繊維を破壊したり、
さらには光学繊維が黄変してしまう欠点がある。しかも
、大きな領域に紫外光が照射されるために、境界部から
離れた部位のプラスチックまでも光硬化してしまい、硬
質長さが不用意に長くなってしまう欠点もある。[Problems to be solved by the invention C] All of the prior art techniques place the light source near the boundary (Unexamined Japanese Patent Publication No. 59/1989).
- In Publication No. 181305, side member, JP-A-121402
In the publication, the plastic is directly irradiated with ultraviolet light (on the fixed part side) to photocure the plastic, but this type of irradiation has the problem that the heat from the light source directly enters the optical fiber. There is. For this reason, optical fibers may expand due to heat and cracks may occur, or plastic may shrink due to heat and break the optical fiber in the middle.
Furthermore, there is a drawback that the optical fiber becomes yellowed. Furthermore, since a large area is irradiated with ultraviolet light, even the plastic in areas far away from the boundaries is photocured, resulting in a disadvantage that the hard length becomes unnecessarily long.
この発明は、このような問題点に着目してなされたもの
で、光源の熱による支障を解消することを目的とする。The present invention was made in view of these problems, and aims to solve the problem caused by the heat of the light source.
この光学ｍ雑束の製造方法では、境界部に充填した光硬
化性のプラスチック７へ光硬化させるための光を導光部
材６を通して照射する。In this method of manufacturing an optical miscellaneous bundle, light for photocuring the photocurable plastic 7 filled in the boundary portion is irradiated through the light guide member 6.
〔作用〕
光源５を光学繊維束本体１から遠くに離れて置き、これ
から導光部材６を通じ、光硬化性のプラスチック７へ導
かれるれる光で、固定部３の端面側のみのプラスチック
７を光硬化させる。[Operation] The light source 5 is placed far away from the optical fiber bundle main body 1, and the light guided from there to the photocuring plastic 7 through the light guide member 6 illuminates the plastic 7 only on the end face side of the fixing part 3. Let it harden.
以下、この発明方法を第１図に示す第１の実施例にもと
づき説明する。まず、主要部の構成について説明すれば
、１は光学ｍ維束本体、２はその光学繊維束本体１の中
間部に形成された可撓部、３は光学繊維束本体１の端部
に形成された固定部である。可撓部２．固定部３は、た
とえば可溶ガラスを外周に３重光学１［４を多数本束ね
て溶着し、その後、中間部の可溶ガラスを除去するとい
った先に述べたＲ溶出方法によって成形されている。つ
まり、固定部３は可溶ガラスで構成される。The method of this invention will be explained below based on a first embodiment shown in FIG. First, to explain the configuration of the main parts, 1 is the optical fiber bundle body, 2 is the flexible part formed in the middle part of the optical fiber bundle body 1, and 3 is the flexible part formed at the end of the optical fiber bundle body 1. This is the fixed part. Flexible part 2. The fixed part 3 is formed by the above-mentioned R elution method, for example, by bundling and welding a large number of triple optics 1[4 around the outer periphery of fusible glass, and then removing the fusible glass in the middle part. . In other words, the fixing part 3 is made of fusible glass.
また、５は紫外光を発するＵ■クランプどの光源、６は
光学Ｉ１１！（導光部材）である。そして、光源５は光
学！ＩＨ束本体１から離れた地点に配されていて、この
光［５の集光部に光学繊維６の一端面が臨んでいる。Also, 5 is a U■ clamp that emits ultraviolet light, which light source is it, and 6 is an optical I11! (light guiding member). And light source 5 is optical! It is arranged at a point away from the IH bundle main body 1, and one end surface of the optical fiber 6 faces the condensing part of this light [5].
つぎに、この発明方法の要部となる、固定部２と可撓部
３との境界部を補強する方法ついて説明する。すなわち
、まず光学ａ！維束本体１を一方の固定部３を下に向は
上下の方向に沿って配置する。Next, a method for reinforcing the boundary between the fixed part 2 and the flexible part 3, which is the main part of the method of this invention, will be explained. In other words, first, optical a! The fiber bundle main body 1 is arranged with one fixing part 3 facing downward and along the vertical direction.
その後、固定部３と可撓部２との境界部に光硬化型の接
着剤（光硬化性のプラスチック）７を注入する。こうし
た固定部３を下にしての注入により、毛細管現象による
可撓管部２側の流出を防ぎつつ、接着剤７が充填される
。こののち、光源５を作動させて、光学繊維６の他端面
を固定部３近くの接着剤７に対向させれば、光源５自身
の熱を光学繊維４・・・に加えずして、光硬化に必要な
光が接着剤７へ照射されることになる。Thereafter, a photocurable adhesive (photocurable plastic) 7 is injected into the boundary between the fixed part 3 and the flexible part 2. By injecting with the fixing part 3 facing down, the adhesive 7 is filled while preventing outflow from the flexible tube part 2 side due to capillarity. After that, if the light source 5 is activated and the other end surface of the optical fiber 6 is opposed to the adhesive 7 near the fixing part 3, the light source 5 can emit light without applying its own heat to the optical fiber 4. The adhesive 7 is irradiated with light necessary for curing.
かくして、光源５の熱によるクラックの発生６同光学繊
維４・・・の破壊、さらには光学ｔＨｆ４・・・の黄変
を防止することができる。しかも、光学！！１ｉＩｌｔ
６の採用で光硬化に必要な光を固体部３近くへ導くこと
ができるから、固定部３の端面のみ光硬化させることが
でき、硬質長を規制することができもので、これは固定
部３の下端面から接着剤７に向け、光学ｍ維６を使い光
硬化に必要な光を照射するようにしたものである。In this way, generation of cracks due to the heat of the light source 5, destruction of the optical fibers 4, and furthermore yellowing of the optical fibers 4 can be prevented. Moreover, it is optical! ! 1iIlt
6 allows the light necessary for photocuring to be guided close to the solid part 3, so only the end face of the fixed part 3 can be photocured, and the hard length can be regulated. The optical fiber 6 is used to irradiate the adhesive 7 with light necessary for photocuring from the lower end surface of the adhesive 7.
なお、光の照射方向は先の横、下方向に限らず、斜め方
向でもよい。Note that the direction of light irradiation is not limited to the horizontal or downward direction, but may be an oblique direction.
以上説明したようにこの発明によれば、熱によるクラッ
クの発生、光学繊維の破壊、光学繊維の黄変を防止する
ことができる。しかも、固定部の端面のみ光硬化させる
ことができ、硬質長を規制することができ、光源の熱に
よる支障を解消することができる。As explained above, according to the present invention, it is possible to prevent the occurrence of cracks, destruction of optical fibers, and yellowing of optical fibers due to heat. Furthermore, only the end face of the fixing part can be photocured, the hardening length can be regulated, and problems caused by the heat of the light source can be eliminated.
第１図はこの発明の第１の実施例の方法を説明するため
の要部を示す断面図、第２図はこの発明の第２の実施例
の要部を示す断面図である。
１・・・光学ｉｆ束本体、２・・・可撓部、３・・・固
定部、５・・・光源、６・・・光学繊維（導光部材）。FIG. 1 is a sectional view showing the main parts of the method according to the first embodiment of the invention, and FIG. 2 is a sectional view showing the main parts of the second embodiment of the invention. DESCRIPTION OF SYMBOLS 1... Optical IF bundle main body, 2... Flexible part, 3... Fixed part, 5... Light source, 6... Optical fiber (light guide member).
Claims (1)
体の前記固定部と前記中間部との境界部に光硬化性のプ
ラスチックを充填し、この光硬化性のプラスチックへ光
硬化させるための光を導光部材を通して照射することを
特徴とする光学繊維束の製造方法。The boundary between the fixed part and the intermediate part of an optical fiber bundle main body having a fixed part at the end and a flexible part in the middle is filled with photocurable plastic, and the photocurable plastic is photocured. 1. A method for producing an optical fiber bundle, which comprises irradiating light through a light guiding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60220564A JPS6283328A (en) | 1985-10-03 | 1985-10-03 | Production of optical fiber bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60220564A JPS6283328A (en) | 1985-10-03 | 1985-10-03 | Production of optical fiber bundle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6283328A true JPS6283328A (en) | 1987-04-16 |
| JPH0341414B2 JPH0341414B2 (en) | 1991-06-24 |
Family
ID=16752965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60220564A Granted JPS6283328A (en) | 1985-10-03 | 1985-10-03 | Production of optical fiber bundle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6283328A (en) |
-
1985
- 1985-10-03 JP JP60220564A patent/JPS6283328A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0341414B2 (en) | 1991-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |