JPH0875935A - Method for working end face of plastic optical fiber and device for working end face - Google Patents
Method for working end face of plastic optical fiber and device for working end faceInfo
- Publication number
- JPH0875935A JPH0875935A JP6213718A JP21371894A JPH0875935A JP H0875935 A JPH0875935 A JP H0875935A JP 6213718 A JP6213718 A JP 6213718A JP 21371894 A JP21371894 A JP 21371894A JP H0875935 A JPH0875935 A JP H0875935A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- plastic optical
- lens
- face
- forming die
- 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
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】プラスチック光ファイバ端面加工
法及び端面加工装置に関し、より詳細には、プラスチッ
ク光ファイバ端部の端面にレンズを形成する端面加工法
及び端面加工装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic optical fiber end surface processing method and an end surface processing apparatus, and more particularly to an end surface processing method and an end surface processing apparatus for forming a lens on the end surface of a plastic optical fiber end portion.
【０００２】[0002]
【従来の技術】プラスチック光ファイバ端部の端面にレ
ンズを形成する端面加工技術としては、従来、プラスチ
ック光ファイバ先端を火炎若しくはその他の高熱源に近
接させその先端を凸状にするものがある。例えば、プラ
スチック光ファイバを、端部の内側隅部に欠除部を形成
した筒体に挿通してプラスチック光ファイバ先端を加熱
して、プラスチック光ファイバ先端の外径を膨大化し、
その一部を欠除部に充填させ、その先端にレンズ状突起
部を形成する技術がある（特公昭６２−５７００１号公
報）。この様な技術により、簡易に、効率的にかつ低コ
ストでプラスチック光ファイバ端部の端面にレンズを形
成することができる。2. Description of the Related Art Conventionally, as an end face processing technique for forming a lens on the end face of a plastic optical fiber end, there is a technique in which the tip of the plastic optical fiber is brought close to a flame or other high heat source to make the tip convex. For example, a plastic optical fiber is inserted into a tubular body having a cutout formed in the inner corner of the end to heat the plastic optical fiber tip, and the outer diameter of the plastic optical fiber tip is enlarged,
There is a technique of filling a part of the recessed portion with a lens-like protrusion at its tip (Japanese Patent Publication No. 62-57001). With such a technique, it is possible to easily, efficiently and inexpensively form a lens on the end surface of the end portion of the plastic optical fiber.
【０００３】[0003]
【発明が解決しようとする課題】しかし、プラスチック
光ファイバ端部の端面にレンズを形成する従来の端面加
工技術では、プラスチック光ファイバの先端部を溶融化
させ、表面張力により凸部を形成し、加熱の度合が不均
一となるために、凸部の形成に再現性が無く、キズが付
いたり、汚れが付着するなどの不都合がある。However, in the conventional end face processing technique of forming a lens on the end face of the end of the plastic optical fiber, the front end of the plastic optical fiber is melted and the convex portion is formed by surface tension, Since the degree of heating is non-uniform, the formation of the convex portion is not reproducible, and there are disadvantages such as scratches and stains.
【０００４】この発明は、上述の背景に基づきなされた
ものであり、その目的とするところは、簡易に、効率的
にかつ低コストでプラスチック光ファイバ端部の端面に
レンズを形成することができ、再現性よく凸部を形成で
き、キズの発生、汚れの付着などが少ないプラスチック
光ファイバ端面加工法及び端面加工装置を提供すること
である。The present invention has been made based on the above-mentioned background, and an object of the present invention is to easily, efficiently and cost-effectively form a lens on the end face of a plastic optical fiber end portion. It is an object of the present invention to provide a plastic optical fiber end face processing method and end face processing apparatus capable of forming a convex portion with good reproducibility and having less scratches and adhesion of dirt.
【０００５】[0005]
【課題を解決するための手段】上記課題はこの発明によ
り解決される。すなわち、この発明によるプラスチック
光ファイバ端面加工法は、プラスチック光ファイバ端部
の端面にレンズを形成する方法であって、（ａ）所定長
の端部が露出したプラスチック光ファイバを準備する工
程、（ｂ）プラスチック光ファイバの該端部の先端に、
加熱されたレンズ形成用型を押し付けて該端部の一部若
しくは全体を軟化・溶融させて該端部の先端をレンズ形
状に形成する加熱工程、及び（ｃ）プラスチック光ファ
イバの該端部の先端にレンズ形成用型が押し付けられた
状態で、若しくは、プラスチック光ファイバの該端部か
らレンズ形成用型を引き離した後で、プラスチック光フ
ァイバの該端部を強制冷却する急冷却工程、を含むこと
を特徴とするものである。The above-mentioned problems can be solved by the present invention. That is, the plastic optical fiber end face processing method according to the present invention is a method of forming a lens on the end face of the plastic optical fiber end part, and (a) a step of preparing a plastic optical fiber having an end part of a predetermined length exposed ( b) At the end of the end of the plastic optical fiber,
A heating step of pressing a heated lens forming mold to soften / melt a part or the whole of the end portion to form the tip of the end portion into a lens shape; and (c) the end portion of the plastic optical fiber. A rapid cooling step of forcibly cooling the end of the plastic optical fiber after the lens forming mold is pressed against the tip or after the lens forming mold is separated from the end of the plastic optical fiber. It is characterized by that.
【０００６】また、この発明による端面加工装置は、プ
ラスチック光ファイバ端部の端面にレンズを形成する装
置であって、所定長の端部が露出したプラスチック光フ
ァイバを固定する固定具と、少なくとも、プラスチック
光ファイバ端部の先端に押し付けられたとき、加熱され
るレンズ形成用型と、レンズ形成用型と一体化され該型
と共に移動し、プラスチック光ファイバの該端部の先端
にレンズ形成用型が押し付けられた状態で、若しくは、
プラスチック光ファイバの該端部からレンズ形成用型を
引き離した後で、プラスチック光ファイバの該端部を強
制冷却する急冷却手段と、レンズ形成用型と急冷却手段
とを、相対的にプラスチック光ファイバ端部の先端に押
し付け、引き離す搬送手段と、からなることを特徴とす
るものである。The end surface processing apparatus according to the present invention is an apparatus for forming a lens on the end surface of the end portion of a plastic optical fiber, and a fixing tool for fixing the plastic optical fiber whose end portion has a predetermined length, and at least: A lens forming die that is heated when pressed against the end of the plastic optical fiber, and a lens forming die that is integrated with the lens forming die and moves together with the lens forming die, and the lens forming die is attached to the end of the plastic optical fiber end. In the pressed state, or
After the lens forming die is separated from the end portion of the plastic optical fiber, the rapid cooling means for forcibly cooling the end portion of the plastic optical fiber, and the lens forming die and the rapid cooling means are provided with a plastic light It is characterized in that it comprises a conveying means that presses against the tip of the fiber end and separates it.
【０００７】[0007]
【作用】上記構成を有するこの発明によるプラスチック
光ファイバ端面加工法及び端面加工装置は、以下のよう
に作用・動作する。まず、所定長の端部が露出したプラ
スチック光ファイバを準備し、この所定長の端部が露出
したプラスチック光ファイバを固定具で固定する。少な
くとも、プラスチック光ファイバ端部の先端に押し付け
られたとき加熱されるレンズ形成用型を、このプラスチ
ック光ファイバ端部の先端に、押し付けて、この端部の
一部若しくは全体を軟化・溶融させてこの端部の先端を
レンズ形状に形成する。The plastic optical fiber end face processing method and the end face processing apparatus according to the present invention having the above-described structure operate and operate as follows. First, a plastic optical fiber having an exposed end of a predetermined length is prepared, and the plastic optical fiber having an exposed end of the predetermined length is fixed with a fixture. At least, a lens forming die that is heated when pressed against the end of the plastic optical fiber end is pressed against the end of this plastic optical fiber end to soften or melt part or the whole of this end. The tip of this end is formed into a lens shape.
【０００８】プラスチック光ファイバの該端部の先端に
レンズ形成用型が押し付けられた状態で、若しくは、プ
ラスチック光ファイバの該端部からレンズ形成用型を引
き離した後で、プラスチック光ファイバの該端部を急冷
却手段で強制冷却する。この際、レンズ形成用型と急冷
却手段とは、搬送手段によって、相対的にプラスチック
光ファイバ端部の先端に押し付け、引き離される。急冷
却及び引き離し後に、端部端面にレンズが形成されたプ
ラスチック光ファイバを得る。The end of the plastic optical fiber is pressed while the lens forming die is pressed against the tip of the end of the plastic optical fiber or after the lens forming die is separated from the end of the plastic optical fiber. The part is forcibly cooled by the rapid cooling means. At this time, the lens forming die and the rapid cooling means are relatively pressed against the tip of the plastic optical fiber end portion by the conveying means and separated from each other. After rapid cooling and separation, a plastic optical fiber having a lens formed on the end face is obtained.
【０００９】[0009]
【実施例】この発明を以下の実施例により具体的に説明
する。本発明の一実施例を図面をもとに説明する。図１
は、本発明によるプラスチック光ファイバ端面加工方法
の一実施例の使用態様を示す概略断面図である。The present invention will be specifically described with reference to the following examples. An embodiment of the present invention will be described with reference to the drawings. FIG.
FIG. 3 is a schematic cross-sectional view showing a mode of use of an embodiment of the method for processing an end face of a plastic optical fiber according to the present invention.
【００１０】この発明によるプラスチック光ファイバ端
面加工法に使用する端面加工装置の一実施例では、端部
が露出したジャケット２付きプラスチック光ファイバ１
を固定する固定具（図示せず）と、少なくともプラスチ
ック光ファイバ１の先端に押し付けられたとき加熱され
るレンズ形成用型３と、レンズ形成用型３と一体化され
この型３と共に移動し、プラスチック光ファイバ１の先
端にレンズ形成用型３が押し付けられた状態でプラスチ
ック光ファイバ１の端部を強制冷却するバキュームの急
冷却手段４と、レンズ形成用型３と急冷却手段４とを相
対的にプラスチック光ファイバ１の先端に押し付け、引
き離す搬送手段（図示せず）とからなるプラスチック光
ファイバ端部にレンズ５を形成する装置である。In one embodiment of the end face processing apparatus used in the end face processing method for a plastic optical fiber according to the present invention, a plastic optical fiber 1 with a jacket 2 having an exposed end is provided.
A fixture (not shown) for fixing the lens forming mold, a lens forming mold 3 that is heated at least when pressed against the tip of the plastic optical fiber 1, and is integrated with the lens forming mold 3 and moves together with the mold 3. The vacuum rapid cooling means 4 for forcibly cooling the end of the plastic optical fiber 1 with the lens forming die 3 pressed against the tip of the plastic optical fiber 1, and the lens forming die 3 and the rapid cooling means 4 are opposed to each other. It is a device that forms a lens 5 at the end of the plastic optical fiber, which is composed of a transporting means (not shown) that is pressed against the tip of the plastic optical fiber 1 and pulled apart.
【００１１】この発明の実施例において、プラスチック
光ファイバ１を固定する固定具及び、レンズ形成用型３
と急冷却手段４とをク光ファイバ１の先端に押し付け、
引き離す搬送手段は、通常の種々の手段を用いることが
できる。In the embodiment of the present invention, a fixture for fixing the plastic optical fiber 1 and the lens forming mold 3 are provided.
And the rapid cooling means 4 are pressed against the tip of the optical fiber 1,
As the transporting means for separating, various ordinary means can be used.
【００１２】次いで、この実施例によるプラスチック光
ファイバ端面加工法に使用する端面加工装置の使用・動
作を説明する。まず、所定長の端部が露出したジャケッ
ト２付きプラスチック光ファイバ１（ＰＭＭＡ製）を準
備し、この所定長の端部が露出したプラスチック光ファ
イバを固定具で固定する（図１（ａ）参照）。次いで、
レンズ形成用型３と急冷却手段４とを、搬送手段によっ
て、プラスチック光ファイバ１の先端に押し付ける（図
１（ｂ）参照）。Next, the use and operation of the end face processing apparatus used for the end face processing method for plastic optical fibers according to this embodiment will be described. First, a plastic optical fiber 1 with a jacket 2 (PMMA) having an exposed end of a predetermined length is prepared, and the plastic optical fiber having an exposed end of the predetermined length is fixed with a fixture (see FIG. 1 (a)). ). Then
The lens forming mold 3 and the rapid cooling means 4 are pressed against the tip of the plastic optical fiber 1 by the conveying means (see FIG. 1B).
【００１３】プラスチック光ファイバ１の先端に押し付
けられたときレンズ形成用型３を加熱し、このプラスチ
ック光ファイバ１の先端に、押し付けて、この端部の一
部を軟化・溶融させてこの先端をレンズ形状に形成す
る。プラスチック光ファイバ１の先端にレンズ形成用型
３が押し付けられた状態でプラスチック光ファイバ１端
部をバキュームの急冷却手段４で強制冷却する（図１
（ｃ）参照）。次いで、レンズ形成用型３と急冷却手段
４とを、搬送手段によってプラスチック光ファイバ１の
先端から引き離す（図１（ｄ）参照）。急冷却及び引き
離し後に、端部端面にレンズ５が形成されたプラスチッ
ク光ファイバを得る。The lens forming mold 3 is heated when pressed against the end of the plastic optical fiber 1 and pressed against the end of the plastic optical fiber 1 to soften / melt a part of this end, and this end is fixed. It is formed into a lens shape. The end portion of the plastic optical fiber 1 is forcibly cooled by the rapid cooling means 4 of the vacuum while the lens forming die 3 is pressed against the tip of the plastic optical fiber 1 (FIG. 1).
(C)). Next, the lens forming mold 3 and the rapid cooling means 4 are separated from the tip of the plastic optical fiber 1 by the conveying means (see FIG. 1 (d)). After rapid cooling and separation, a plastic optical fiber having a lens 5 on the end face is obtained.
【００１４】この発明は上記実施例に限定されず種々の
変形例が可能である。例えば、実施例では、レンズ形成
用型が押し付けられた状態で急冷却されたが、引き離し
後に急冷却することもできる。更に、凸レンズ形状以外
に凹レンズ形状にも適宜変更することができる。The present invention is not limited to the above embodiment, and various modifications are possible. For example, in the embodiment, the lens forming mold is rapidly cooled while being pressed, but it may be rapidly cooled after being separated. Further, in addition to the convex lens shape, a concave lens shape can be appropriately changed.
【００１５】[0015]
【発明の効果】上記実施例から具体的に理解されるよう
に、この発明によるプラスチック光ファイバ端面加工法
及び端面加工装置により、簡易に、効率的にかつ低コス
トでプラスチック光ファイバ端部の端面にレンズを形成
することができ、再現性よく凸部を形成でき、キズの発
生、汚れの付着などが少ないという効果を奏する。As will be concretely understood from the above-mentioned embodiments, the end face of the end portion of the plastic optical fiber can be simply, efficiently and inexpensively manufactured by the end face processing method and the end face processing apparatus for the plastic optical fiber according to the present invention. It is possible to form a lens on the surface, a convex portion can be formed with good reproducibility, and there is an effect that there are few scratches and adhesion of dirt.
【図１】図１は、本発明によるプラスチック光ファイバ
端面加工方法の一実施例の使用態様を示す概略断面図で
ある。FIG. 1 is a schematic cross-sectional view showing a mode of use of an embodiment of a method for processing a plastic optical fiber end face according to the present invention.
１ 光ファイバ ２ ジャケット ３ レンズ形成用型 ４ 急冷却手段 ５ レンズ 1 optical fiber 2 jacket 3 lens forming mold 4 rapid cooling means 5 lens
Claims (2)
ンズを形成する方法であって、 （ａ）所定長の端部が露出したプラスチック光ファイバ
を準備する工程、 （ｂ）プラスチック光ファイバの該端部の先端に、加熱
されたレンズ形成用型を押し付けて該端部の一部若しく
は全体を軟化・溶融させて該端部の先端をレンズ形状に
形成する加熱工程、及び （ｃ）プラスチック光ファイバの該端部の先端にレンズ
形成用型が押し付けられた状態で、若しくは、プラスチ
ック光ファイバの該端部からレンズ形成用型を引き離し
た後で、プラスチック光ファイバの該端部を強制冷却す
る急冷却工程、を含むことを特徴とするプラスチック光
ファイバ端面加工法。1. A method for forming a lens on an end face of a plastic optical fiber end, which comprises: (a) preparing a plastic optical fiber having an exposed end having a predetermined length; and (b) the end of the plastic optical fiber. A heating step of pressing a heated lens-forming mold to the tip of the end portion to soften / melt a part or the whole of the end portion to form the tip end of the end portion into a lens shape; and (c) a plastic optical fiber. In a state where the lens forming die is pressed against the tip of the end of the plastic optical fiber, or after the lens forming die is separated from the end of the plastic optical fiber, the end of the plastic optical fiber is forcibly cooled. A method for processing an end face of a plastic optical fiber, which includes a cooling step.
ンズを形成する端面加工装置であって、 所定長の端部が露出したプラスチック光ファイバを固定
する固定具と、 少なくとも、プラスチック光ファイバ端部の先端に押し
付けられたとき、加熱されるレンズ形成用型と、 レンズ形成用型と一体化され該型と共に移動し、プラス
チック光ファイバの該端部の先端にレンズ形成用型が押
し付けられた状態で、若しくは、プラスチック光ファイ
バの該端部からレンズ形成用型を引き離した後で、プラ
スチック光ファイバの該端部を強制冷却する急冷却手段
と、 レンズ形成用型と急冷却手段とを、相対的にプラスチッ
ク光ファイバ端部の先端に押し付け、引き離す搬送手段
と、からなることを特徴とする端面加工装置。2. An end face processing device for forming a lens on an end face of a plastic optical fiber end part, comprising: a fixture for fixing a plastic optical fiber having an end part of a predetermined length exposed, and at least a plastic optical fiber end part. When the lens forming die is heated when pressed to the tip, and is moved together with the lens forming die that is integrated with the lens forming die, and the lens forming die is pressed to the tip of the end of the plastic optical fiber. Alternatively, a rapid cooling means for forcibly cooling the end portion of the plastic optical fiber after separating the lens forming die from the end portion of the plastic optical fiber, and a lens forming die and a rapid cooling means And an end surface processing apparatus, which comprises a conveying means that presses the end of the plastic optical fiber end and separates it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6213718A JPH0875935A (en) | 1994-09-07 | 1994-09-07 | Method for working end face of plastic optical fiber and device for working end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6213718A JPH0875935A (en) | 1994-09-07 | 1994-09-07 | Method for working end face of plastic optical fiber and device for working end face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0875935A true JPH0875935A (en) | 1996-03-22 |
Family
ID=16643851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6213718A Pending JPH0875935A (en) | 1994-09-07 | 1994-09-07 | Method for working end face of plastic optical fiber and device for working end face |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0875935A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858474A1 (en) * | 1998-12-17 | 2000-07-06 | Tyco Electronics Logistics Ag | Precision hot-molding of plastic optical fiber end faces for plug connectors, employs controlled laser- or hot air heating of fiber end, which is shaped by cold plunger mold with formed end face |
| JP2003107302A (en) * | 2001-09-28 | 2003-04-09 | Sony Corp | Optical transmitter/receiver |
| US6671432B2 (en) | 2000-04-05 | 2003-12-30 | Canon Kabushiki Kaisha | Plastic optical fiber with a lens portion, optical fiber connector, and connecting structures and methods between optical fibers and between optical fiber and light emitting/receiving device |
| US6826329B2 (en) | 2000-04-05 | 2004-11-30 | Canon Kabushiki Kaisha | Plastic optical fiber with a lens, light-emitting/receiving apparatus with the plastic optical fiber with a lens, and method of fabricating the plastic optical fiber with a lens |
| DE10033123B4 (en) * | 1999-07-08 | 2008-01-03 | Alps Electric Co., Ltd. | Die-casting mold useful in die-casting machine for casting metal cast parts, comprises contour part limiting cavity, where the contour part is fixable or fixed to contour part holder, which has reception area for receiving the contour part |
| US7590319B2 (en) | 2004-02-06 | 2009-09-15 | Fujifilm Corporation | Preform for plastic optical material, production method thereof, optical coupling method of plastic optical fiber and connector used for optical coupling |
| US8494337B2 (en) | 2005-02-28 | 2013-07-23 | Osram Opto Semiconductors Gmbh | Light guide |
-
1994
- 1994-09-07 JP JP6213718A patent/JPH0875935A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858474A1 (en) * | 1998-12-17 | 2000-07-06 | Tyco Electronics Logistics Ag | Precision hot-molding of plastic optical fiber end faces for plug connectors, employs controlled laser- or hot air heating of fiber end, which is shaped by cold plunger mold with formed end face |
| DE19858474B4 (en) * | 1998-12-17 | 2005-06-09 | Tyco Electronics Logistics Ag | Method for producing end faces on optical waveguides made of plastic optical fibers (POF) and apparatus for carrying out the method |
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| US7590319B2 (en) | 2004-02-06 | 2009-09-15 | Fujifilm Corporation | Preform for plastic optical material, production method thereof, optical coupling method of plastic optical fiber and connector used for optical coupling |
| US8494337B2 (en) | 2005-02-28 | 2013-07-23 | Osram Opto Semiconductors Gmbh | Light guide |
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