JPH0353206A - Optical connector terminal structure - Google Patents
Optical connector terminal structureInfo
- Publication number
- JPH0353206A JPH0353206A JP18729089A JP18729089A JPH0353206A JP H0353206 A JPH0353206 A JP H0353206A JP 18729089 A JP18729089 A JP 18729089A JP 18729089 A JP18729089 A JP 18729089A JP H0353206 A JPH0353206 A JP H0353206A
- Authority
- JP
- Japan
- Prior art keywords
- light
- hole
- optical connector
- light beam
- adhesive
- 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 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- 239000013307 optical fiber Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 abstract description 19
- 239000011347 resin Substances 0.000 abstract description 19
- 230000001678 irradiating effect Effects 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 229920006332 epoxy adhesive Polymers 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は光ファイバ相互を接続する光コネクタに係わり
、特に光硬化性樹脂を用いて光ファイバを固定する光コ
ネクタ端末構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical connector for interconnecting optical fibers, and more particularly to an optical connector terminal structure for fixing optical fibers using a photocurable resin.
従来この種の光コネクタ端末構造は、第２図に示すよう
に、光ファイバ１の外径よりわずかに径の大きな穴２ａ
を有する透光性部材２と、この透光性部材２を保持する
管状の外周部材３とからなり、この透光性部材２はエポ
キシ系接着剤４を用いて外周部材３に固定されていた。Conventionally, this type of optical connector terminal structure has a hole 2a whose diameter is slightly larger than the outer diameter of the optical fiber 1, as shown in FIG.
The light-transmitting member 2 is composed of a light-transmitting member 2 with .
また、光ファイバ１は光硬化性樹脂５が塗布された後、
透光性部材２の穴２ａに挿入され、光コネククの端末前
端部６から光を照射することにより、端末に接着固定さ
れるようになっている。Moreover, after the optical fiber 1 is coated with the photocurable resin 5,
It is inserted into the hole 2a of the translucent member 2, and is adhesively fixed to the terminal by irradiating light from the terminal front end 6 of the optical connector.
ところで、エボキシ系接着剤４の屈折率は、透光性部材
２より高く、かつ光硬化性樹脂５の硬化波長の領域の光
を吸収し易いものであった。このため、光コネクタの端
末前端部６より光を照射した場合、第２図に示すように
、入射光のうち、入射角の比較的大きな光７は、透光性
部材２からエポキシ系接着剤４に漏れ出てしまい、この
エボキシ系接着剤４により吸収される。したがって、入
射光のうち、直接光硬化性樹脂５の部分に達する光はわ
ずかとなり、深部の光硬化性樹脂５が有効に硬化できな
いという欠点があった。このため、強力な光源が必要と
なり、かつ硬化時間も長くなってしまい、使用できる光
硬化性樹脂５も非常に硬化性のよいものに限定されてし
まうという問題があった。Incidentally, the refractive index of the epoxy adhesive 4 was higher than that of the light-transmitting member 2, and it easily absorbed light in the region of the curing wavelength of the photocurable resin 5. Therefore, when light is irradiated from the terminal front end 6 of the optical connector, as shown in FIG. 4 and is absorbed by this epoxy adhesive 4. Therefore, only a small amount of the incident light directly reaches the photocurable resin 5, and there is a drawback that the photocurable resin 5 in the deep part cannot be effectively cured. Therefore, a strong light source is required, and the curing time becomes long, and the photocurable resin 5 that can be used is limited to those having very good curing properties.
本発明は上述した問題に鑑みてなされたもので、光硬化
性樹脂に到達する入射光の割合を増加させるようにした
光コネクタ端末構造を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an optical connector terminal structure that increases the proportion of incident light that reaches the photocurable resin.
上述した目的を達或するために本発明は、光ファイバ外
径よりわずかに径の大きな穴を有する透光性部材と、こ
の透光性部材の外周に同軸上に端部をそろえて固定され
た外周部材とからなる光コネクタ端末構造において、透
光性部材と外周部材を、光を乱反射する接着剤により固
定した構或としたものである。In order to achieve the above-mentioned object, the present invention includes a light-transmitting member having a hole with a diameter slightly larger than the outer diameter of an optical fiber, and a light-transmitting member fixed to the outer periphery of the light-transmitting member with the ends coaxially aligned. In this optical connector terminal structure, the light-transmitting member and the outer peripheral member are fixed with an adhesive that diffusely reflects light.
このように本発明にあっては、透光性部材と外周部材を
光を乱反射する接着剤を用いて固定することにより、端
末前端部より入射された光のうち、エポキシ系接着剤に
漏れ、吸収されていた光を乱反射させることで、光硬化
性樹脂の部分に到達する光の割合を増加させることが可
能となる。また、乱反射により、光硬化性樹脂の領域全
体に均一に入射光を照射することもできる。In this way, in the present invention, by fixing the translucent member and the peripheral member using an adhesive that diffusely reflects light, it is possible to prevent light incident from the front end of the terminal from leaking into the epoxy adhesive. By diffusing the absorbed light, it is possible to increase the proportion of light that reaches the photocurable resin portion. Furthermore, the diffused reflection makes it possible to uniformly irradiate the entire area of the photocurable resin with the incident light.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明に係わる光コネクタ端末構造の一実施例
を示す縦断面図である。透光性部材ＩＯは管状部材によ
り作製されていると共に、穴１０ａの内径寸法は光ファ
イバ１１の外径寸法よりわずかに大きく形威されている
。なお、透光性部材ｌＯの右端側はその肉厚が次第に細
くなっており、穴１０ａはいわゆるラッパ状に開口した
構造となっている。また、透光性部材１０の外周には外
周部材ｌ２が配設されており、この外周部材１２は透光
性部材１０と同軸上に端部をそろえて、光を乱反射する
接着剤１３により固定されている。FIG. 1 is a longitudinal sectional view showing an embodiment of an optical connector terminal structure according to the present invention. The transparent member IO is made of a tubular member, and the inner diameter of the hole 10a is slightly larger than the outer diameter of the optical fiber 11. In addition, the thickness of the right end side of the light-transmitting member 1O becomes gradually thinner, and the hole 10a has a so-called trumpet-shaped opening structure. Further, an outer circumferential member l2 is disposed around the outer circumference of the translucent member 10, and the outer circumferential member 12 is fixed with an adhesive 13 that diffusely reflects light, with its ends aligned coaxially with the translucent member 10. has been done.
光ファイバ１１は、透光性部材１０の穴１０ａ内に挿入
され、この光ファイバ１１と穴１０ａとの間には、光硬
化性樹脂１４が充填されている。The optical fiber 11 is inserted into the hole 10a of the transparent member 10, and a photocurable resin 14 is filled between the optical fiber 11 and the hole 10a.
以上のような構或において、光コネクタの端末前端部ｌ
５より照射された光１６は，、光−を乱反射する接着剤
１３により乱反射され、光硬化性樹脂１４にあたり、こ
の光硬化性樹脂ｌ４を硬化させる。In the above structure, the terminal front end l of the optical connector
The light 16 irradiated from 5 is diffusely reflected by the adhesive 13 which diffusely reflects the light, hits the photocurable resin 14, and hardens the photocurable resin 14.
なお、光硬化性樹脂１４は、波長３６５μｍあたりの紫
外線にて硬化するものが一般的である。Note that the photocurable resin 14 is generally cured by ultraviolet light having a wavelength of about 365 μm.
波長３６５μｍあたりの紫外線の反射率の良好な材料と
しては、アルミニウム、銀等がある。また、光を乱反射
する接着剤１３としては、これらの微細粉末を、従来の
光学的に透明な接着剤に添加することにより得られる。Examples of materials that have good reflectivity for ultraviolet rays around a wavelength of 365 μm include aluminum, silver, and the like. Further, the adhesive 13 that diffusely reflects light can be obtained by adding these fine powders to a conventional optically transparent adhesive.
以上説明したように、本発明に係わる光コネクタ端末構
造によれば、透光性部材と外周部材を、光を乱反射する
接着剤を用いて固定するように構成したことにより、端
末前端部より入射された光のうち、従来エポキシ系接着
剤に漏れ、吸収されていた光を乱反射させることで、光
硬化性樹脂の部分に到達する光の割合を増加させること
ができるという効果を有する。また、乱反射により、光
硬化性樹脂の領域全体に均一に光が照射できるという効
果も有する。これらの効果により光源を従来と同様のも
のを使用した場合には、硬化時間の短縮が可能となると
共に、硬化時間を同一とした場合、従来より小型で安価
な光源の使用が可能となる。As explained above, according to the optical connector terminal structure according to the present invention, since the light-transmitting member and the peripheral member are fixed using an adhesive that diffusely reflects light, light enters from the front end of the terminal. By diffusely reflecting the light that would conventionally leak and be absorbed by the epoxy adhesive, it is possible to increase the proportion of light that reaches the photocurable resin. Furthermore, the diffused reflection also has the effect that the entire area of the photocurable resin can be uniformly irradiated with light. These effects make it possible to shorten the curing time when a light source similar to the conventional one is used, and when the curing time is kept the same, it becomes possible to use a light source that is smaller and cheaper than the conventional one.
第１図は本発明に係わる光コネクタ端末構造のー実施例
を示す縦断面図、第２図は従来の光コネクタ端末構造の
縦断面図である。
１０・・・・・・透光性部材、１０ａ・・・・・・穴、
１ｌ・・・・・・光ファイバ、１２・・・・・・外周部
材、ｌ３・・・・・・光を乱反射する接着剤、ｌ４・・
・・・・光硬化性樹脂。FIG. 1 is a longitudinal sectional view showing an embodiment of an optical connector terminal structure according to the present invention, and FIG. 2 is a longitudinal sectional view of a conventional optical connector terminal structure. 10... Translucent member, 10a... Hole,
1l...Optical fiber, 12...Outer peripheral member, l3...Adhesive that diffusely reflects light, l4...
...Photocurable resin.
Claims (1)
性部材と、この透光性部材の外周に同軸上に端部をそろ
えて固定された外周部材とからなる光コネクタ端末構造
において、前記透光性部材と外周部材を、光を乱反射す
る接着剤により固定したことを特徴とする光コネクタ端
末構造。In an optical connector terminal structure comprising a transparent member having a hole with a diameter slightly larger than the outer diameter of the optical fiber, and an outer peripheral member fixed to the outer periphery of the transparent member with coaxially aligned ends, An optical connector terminal structure characterized in that a translucent member and a peripheral member are fixed with an adhesive that diffusely reflects light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18729089A JPH0353206A (en) | 1989-07-21 | 1989-07-21 | Optical connector terminal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18729089A JPH0353206A (en) | 1989-07-21 | 1989-07-21 | Optical connector terminal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0353206A true JPH0353206A (en) | 1991-03-07 |
Family
ID=16203412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18729089A Pending JPH0353206A (en) | 1989-07-21 | 1989-07-21 | Optical connector terminal structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0353206A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645938U (en) * | 1992-11-30 | 1994-06-24 | 株式会社椿本チエイン | Bar code carrier destination instruction system |
| CN103869417A (en) * | 2014-02-28 | 2014-06-18 | 北京航天时代光电科技有限公司 | High-reliability single mode fiber reflector and preparing method thereof |
-
1989
- 1989-07-21 JP JP18729089A patent/JPH0353206A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0645938U (en) * | 1992-11-30 | 1994-06-24 | 株式会社椿本チエイン | Bar code carrier destination instruction system |
| CN103869417A (en) * | 2014-02-28 | 2014-06-18 | 北京航天时代光电科技有限公司 | High-reliability single mode fiber reflector and preparing method thereof |
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