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JP2004029365A - Optical transmission component and method of manufacturing the same - Google Patents

Optical transmission component and method of manufacturing the same Download PDF

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Publication number
JP2004029365A
JP2004029365A JP2002185429A JP2002185429A JP2004029365A JP 2004029365 A JP2004029365 A JP 2004029365A JP 2002185429 A JP2002185429 A JP 2002185429A JP 2002185429 A JP2002185429 A JP 2002185429A JP 2004029365 A JP2004029365 A JP 2004029365A
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JP
Japan
Prior art keywords
optical transmission
transmission component
shape
protection
clad
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
Application number
JP2002185429A
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Japanese (ja)
Inventor
Toshihiro Kanematsu
金松 俊宏
Hidenobu Kishi
岸 秀信
Daisei Minegishi
峰岸 大生
Shinya Senoo
妹尾 晋哉
Shinji Tezuka
手塚 伸治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2002185429A priority Critical patent/JP2004029365A/en
Publication of JP2004029365A publication Critical patent/JP2004029365A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical transmission component in which the shape of the component which transmits light is easily deformed in accordance with the configuration of optical transmission, and further the shape is preserved in assembly, and also to provide a method of manufacturing the component. <P>SOLUTION: The optical transmission component is composed by including a plurality of light guide parts composed of a core part and a clad part, and a protecting part arranged between the light guide parts. The optical transmission component further has both functions of free deformation of the optical transmission component and preservation of the form. The shape of the optical transmission component is freely deformed at a prescribed temperature or above. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は光伝送部品及びその製造方法に関し、詳細には光を伝送するためのプラスチック光導波路及び導光路を含む光伝送部品とその製造方法に関する。
【0002】
【従来の技術】
従来の光導波路は光を伝送するためにコアとクラッドからなる光ファイバが主である。用途や使い勝手の良さからシート状の複数の光ファイバから構成されているものが出てきている。また、その材料はガラスとプラスチックに2分されるが、ファイバ間の接続の容易性からプラスチック性のPOF(プラスチックオプチカルファイバ)が実用され始めている。従来のPOFの製造は光ファイバを一本ずつ束ねていたが、生産性が悪く、最近は金型にて直接ファイバシートを形成する方法(特開平10−50968号公報)やフィルム状のプラスチックシートにエンボス法にてファイバシートを形成する方法(特開平10−54918号公報)が発案されている。
【0003】
また、ファイバ同士を容易に接続するためにその端部をテーパ状に広げた形状(特許第3,158,105号明細書)や光導波路縮小小型イメージセンサにおいて画像を縮小するためにテーパ状にしたもの(特開平10−50968号公報)が発案されている。その他、テーパ状への加工方法として、コア材のブロックにレーザにてテーパ状の穴を空けその部分にクラッド材を充填し製造する方法(特開平8−179131号公報)や、束ねたファイバを加熱振動することでテーパ状に加工する方法(特開昭64−11922号公報)がある。
【0004】
更に、光伝送部品(導波路)の用途としては多数ある。例えば、コンピュータ等で電子回路が集積されているボード間、ボード内、チップ間の光インタコネクションなど、いわゆる電気配線に変わって光配線を用いて大容量の情報伝達を行うものである。
【0005】
その中の一例として、LD(レーザダイオード)(またはPD(フォトダイオード))の従来の光伝送装置の構成を図6に示す。コア74及びクラッド75を含んで構成されている通常の光伝送部品76における長手方向の形状は直線的である。そこで、基板71の高さを調整することでLD72の発光部73(またはPDの受光部)と光伝送部品76の位置合わせを行っている。詳細には、図6の(a)において、基板71の所定の位置に光伝送部品76の導波路77の高さに一致するように孔78を設け、当該孔78にLD72を設置して位置合わせを行っている。または、図6の(b)に示すように、反射型の光伝送部品76であれば反射面79を介した入射光と導波路77とが一致するように基板71に設けた孔78に光伝送部品76を設置して位置合わせを行っている。このように、光伝送部品76が直線的であるため、各部品配置の自由度が狭まり、基板71に孔78を設けるために基板71を削る工程が付加されてしまっている。
【0006】
このように、光伝送構成、例えばボード内の電子回路等の配置に合わせて簡易に調整でき、その形状が維持できる構造の光伝送部品であれば、光伝送構成の設計自由度や部品組み立て速度が高くなり、非常に性能の高い光を使った機器が提供できることがわかってきた。
【0007】
【発明が解決しようとする課題】
しかしながら、従来によれば、自由に導光部の形状を変えられない。
本発明はこの問題点を解決するためのものであり、光を伝達する部品形状が光伝送構成に合わせて簡易に変形することができ、しかも組み立て時においてその形状を維持できる光伝送部品とその製造方法を提供することを目的とする。
【0008】
【課題を解決するための手段】
前記問題点を解決するために、コア部とクラッド部からなる複数本の導光部と、該導光部間に配置した保護部とを含んで構成されている、本発明の光伝送部品は形状の自在な変形と形状維持の両方の機能を有することに特徴がある。よって、光伝送構成の設計自由度が高く、部品組み立て速度が速い光伝送部品を提供することができる。
【0009】
また、光伝送部品の形状が所定の温度以上にて自由に変形することにより、光伝送構成の設計自由度が高い光伝送部品を提供できる。
【0010】
更に、別の発明としての光伝達部品の製造方法によれば、保護部の底部を形成する第1の保護部形成工程と、クラッド部の底部を形成する第1のクラッド部形成工程と、コア部を形成するコア部形成工程と、コア部の全周にクラッド部を形成する第2のクラッド部形成工程と、導光部の全周に保護部を形成する第2の保護部形成工程とを有する。よって、光を伝達する部品形状が光伝送構成に合わせて簡易に変形することができ、しかも組み立て時においてその形状を維持できる光伝送部品を製造できる。
【0011】
また、第2のクラッド部形成工程では、未硬化の紫外線硬化樹脂材料をコア部の表面に塗布し、コア部の端部から紫外線を照射し、コア部の表面から所定の厚さに紫外線硬化樹脂材料を硬化させた後、未硬化の紫外線硬化樹脂材料を除去することで第2のクラッド部を形成することが好ましい。
【0012】
更に、第2の保護部形成工程後、保護部を所定の温度にて軟化させ、光伝送部品を任意の形状に変形させ、形状を維持したまま冷却固化する工程を行うことにより、組み立て時においてその形状を維持できる光伝送部品を製造できる。
【0013】
また、コア部とクラッド部からなる複数本の導光部と、該導光部間に配置した保護部とを含んで構成され、該保護部は軟化温度が導光部より低い材料からなる光伝送部品であって、該保護部を所定の温度にて軟化させ、光伝送部品を任意の形状に変形させ、形状を維持したまま冷却固化する。よって、光伝送構成の設計自由度が高く、部品組み立て速度が速い光伝送部品を製造できる。
【0014】
【発明の実施の形態】
本発明の光伝送部品は形状の自在な変形と形状維持の両方の機能を有する。
【0015】
【実施例】
図1は本発明の一実施例に係る光伝送部品の構成を示す図である。同図の(a)は斜視図、同図の(b)は同図の(a)のA−A’線断面図である。同図に示すように、本実施例の光伝送部品10は、コア11とクラッド12からなる複数本の導光部と、該導光部間に配置した保護部13とを含んで構成されている。また、この保護部13には、軟化温度が導光部材より低い材料を使用している。このような構成を有する本実施例の光伝送部品によれば、保護部13の軟化温度以上まで温度を上げることで、使用状況に応じた形状へ自在に変形が可能である。なお、保護部13の部材として金属も考えられるが、折り曲げたりすると、導光部を破損する可能性がある。また、スプリングバックにて狙いの形状加工が難しい。変形時、保護部13は軟化状態にあるため、導光部に大きな負荷がかかり難く、導光部の破損を低減することができる。また、本実施例の光伝送部品の形状変形方法としては、後述するが光伝送部品10を加熱加圧できる形状変形装置にて変形させることができる。
【0016】
次に、本実施例の光伝送部品の形状変形装置について説明する。図2は光伝送部品の形状変形装置の構成を示す断面図である。同図に示す形状変形装置は、複数の加熱加圧金型21〜26を含んで構成されている。各加熱加圧金型21〜26は図示していない加熱手段で加熱され、更に外部からの圧力により加圧可能となっている。
【0017】
このような構成を有する形状変形装置を用いて本実施例の光伝送部品を所望の形状に変形させる動作について説明すると、先ず、図2の(a)に示すように、形状変形装置内に光伝送部品10をセットする。そして、光伝送部品10を保護部の軟化温度以上まで加熱する。その後、加熱加圧金型22、加熱加圧金型23,25の順番で矢印方向に光伝送部品10を加圧させて図2の(b)に示すように光伝送部品10を変形させる。この状態を維持したままで、保護部の軟化温度以下まで冷却する。硬化させた後金型から取り出す。図3の(a)に示す変形前の光伝送部品10を、図3の(b)のように多段形状に変形させたり、または図3の(c)のように導光部の間隔を狭めたりする変形が可能となる。
【0018】
次に、本実施例の光伝送部品を光伝送構成の光学系素子に取り付ける様子について説明する。図4は本実施例の光伝送部品をLDに取り付ける様子を示す図である。同図に示すように、基板71やLD72の発光部73の配置に合わせて光伝送部品10の形状を変形させているため、基板71やLD72等の部品を追加加工することなく簡易に取り付けることができる。また、部品仕様、例えばLD発光部間隔の変更にも追従できる。その他、剛性がないフィルムシートの導波路が一般的であるが、光伝送部品は保護部にて剛性があるため、簡単に位置決めができる。
【0019】
次に、本実施例の光伝送部品の製造方法について説明する。図5は本実施例の光伝送部品の製造工程を示す図である。同図において、先ず、本実施例の光伝送部品の製造工程は、▲1▼保護部底部を形成する第1の保護部形成工程、▲2▼クラッド底部を形成する第1のクラッド部形成工程、▲3▼コア部形成工程、▲4▼コア部全周にクラッド部を形成する第2のクラッド部形成工程、▲5▼導光部全周に保護部を形成する第2の保護部形成工程、そして▲6▼製造された光伝送部品を装置から剥離する工程とを含んでいる。このような▲1▼〜▲6▼の工程で光伝送部品を製造する。ここでの保護部材料は例えばABS樹脂などの熱可塑性樹脂(熱変形温度77℃)、コア材料は例えばアクリル樹脂(PMMA)などの熱可塑性樹脂(熱変形温度95℃)、クラッド材料はコア材料より屈折率が高いUV(紫外線)硬化樹脂である。図5において、転写台51はリング状になっており、駆動機52と連動する機構となっている。転写台51の上に各工程での形状を形成する装置が設置されている。駆動機52は各工程に合わせた位置及びタイミングで回転、停止する。各材料を順次積層する工程において、その位置精度を高めるために、転写台51から離さず全工程を行う装置構成とした。以下に各工程での装置構成とその動作を示す。
【0020】
▲1▼保護部底部を形成する第1の保護部形成工程は、保護部底部形状の保護部材転写マスク53と高さを調整するドクターブレード54と保護材を塗布する保護材塗布機55とを有している。そして、溶融した保護部材を保護材塗布機55にて保護部材転写マスク53内側に塗布する。ドクターブレード54が保護部材転写マスク53上を移動することで、保護部材転写マスク53内側に保護部材を均等に充填させると共に、余分の保護部材を掻き出しながら高さ調整を行い、保護部底部形状を形成する。溶融した保護部材が冷却固化した時点で保護部材転写マスク53を剥がし次工程へ移動させる。
【0021】
▲2▼クラッド底部を形成する第1のクラッド部形成工程は、未硬化のUV(紫外線)硬化樹脂を塗布するクラッド材塗布機(図示せず)と透明な材料からなるクラッド形状のクラッド材転写型56とUV硬化樹脂を硬化させるUV(紫外線)照射装置57とドクターブレード58とを有している。そして、クラッド材塗布機からクラッド材(未硬化のUV硬化樹脂)をクラッド材転写型56に塗布する。ドクターブレード58がクラッド材転写型56上を移動することで、クラッド材転写型56内にクラッド材を均等に充填させると共に、余分のクラッド材を掻き出しながら高さ調整を行い、クラッド部形状を形成する。クラッド材転写型56を反転させ、保護部形状に位置合わせしながら乗せる。UV照射装置57にてクラッド材を硬化させた時点でクラッド材転写型56を離隔し次工程へ移動させる。
【0022】
▲3▼コア部形成工程は、溶融したコア材を塗布するコア材塗布機(図示せず)とコア形状を転写するコア材転写型59と高さ調整用のドクターブレード60とを有している。そして、コア材塗布機からコア材(溶融した熱可塑性樹脂)を軟化温度以上に加熱したコア材転写型59に塗布する。ドクターブレード60がコア材転写型59上を移動することで、コア材転写型59内にコア材を均等に充填させると共に、余分のコア材を掻き出しながら高さ調整を行い、コア部形状を形成する。コア材転写型59を反転させ、クラッド部形状に位置合わせしながら乗せる。コア材転写型59をコア材の軟化温度以下まで冷却固化させた時点でコア材転写型59を離隔し次工程へ移動させる。
【0023】
▲4▼コア部全周にクラッド部を形成する第2のクラッド部形成工程は、クラッド形状のクラッド材転写マスク61と高さを調整するドクターブレード(図示せず)とクラッドを塗布するクラッド材塗布機62とUV照射装置63と除去機64を有している。そして、クラッド塗布機62からクラッド材(未硬化のUV硬化樹脂)をクラッド材転写マスク61内側に塗布する。クラッド材転写マスク61をはずし、UV照射装置63を導光部の入出射面に設置し、UV照射する。クラッド部表面から漏れたUV光がコア材を照射し、硬化する。未硬化樹脂を除去機64で除去する(例:液体による洗浄)。
【0024】
▲5▼導光部全周に保護部を形成する第2の保護部形成工程は、保護部形状の保護部材転写マスク65と高さを調整するドクターブレード66と保護材を塗布する保護材塗布機67とを有している。そして、溶融した保護部材を保護材塗布機67にて保護部材転写マスク65内側に塗布する。ドクターブレード66が保護部材転写マスク65上を移動することで、保護部材転写マスク65内側に保護部材を均等に充填させると共に、余分の保護部材を掻き出しながら高さ調整を行い、保護部形状を形成する。溶融した保護部材が冷却固化した時点で保護部材転写マスク65を剥がし次工程へ移動させる。
【0025】
▲6▼製造された光伝送部品を装置から剥離する剥離工程は、上記▲1▼〜▲5▼の工程で形成された光伝送部品を転写台51から剥離治具68にて剥がし取る。
【0026】
なお、本発明は上記実施例に限定されるものではなく、特許請求の範囲内の記載であれば多種の変形や置換可能であることは言うまでもない。
【0027】
【発明の効果】
以上説明したように、コア部とクラッド部からなる複数本の導光部と、該導光部間に配置した保護部とを含んで構成されている、本発明の光伝送部品は形状の自在な変形と形状維持の両方の機能を有することに特徴がある。よって、光伝送構成の設計自由度が高く、部品組み立て速度が速い光伝送部品を提供することができる。
【0028】
また、光伝送部品の形状が所定の温度以上にて自由に変形することにより、光伝送構成の設計自由度が高い光伝送部品を提供できる。
【0029】
更に、別の発明としての光伝達部品の製造方法によれば、保護部の底部を形成する第1の保護部形成工程と、クラッド部の底部を形成する第1のクラッド部形成工程と、コア部を形成するコア部形成工程と、コア部の全周にクラッド部を形成する第2のクラッド部形成工程と、導光部の全周に保護部を形成する第2の保護部形成工程とを有する。よって、光を伝達する部品形状が光伝送構成に合わせて簡易に変形することができ、しかも組み立て時においてその形状を維持できる光伝送部品を製造できる。
【0030】
また、第2のクラッド部形成工程では、未硬化の紫外線硬化樹脂材料をコア部の表面に塗布し、コア部の端部から紫外線を照射し、コア部の表面から所定の厚さに紫外線硬化樹脂材料を硬化させた後、未硬化の紫外線硬化樹脂材料を除去することで第2のクラッド部を形成することが好ましい。
【0031】
更に、第2の保護部形成工程後、保護部を所定の温度にて軟化させ、光伝送部品を任意の形状に変形させ、形状を維持したまま冷却固化する工程を行うことにより、組み立て時においてその形状を維持できる光伝送部品を製造できる。
【0032】
また、コア部とクラッド部からなる複数本の導光部と、該導光部間に配置した保護部とを含んで構成され、該保護部は軟化温度が導光部より低い材料からなる光伝送部品であって、該保護部を所定の温度にて軟化させ、光伝送部品を任意の形状に変形させ、形状を維持したまま冷却固化する。よって、光伝送構成の設計自由度が高く、部品組み立て速度が速い光伝送部品を製造できる。
【図面の簡単な説明】
【図1】本発明の一実施例に係る光伝送部品の構成を示す図である。
【図2】光伝送部品の形状変形装置の構成を示す断面図である。
【図3】光伝送部品の変形前と変形後を示す斜視図である。
【図4】本実施例の光伝送部品をLDに取り付ける様子を示す図である。
【図5】本実施例の光伝送部品の製造工程を示す図である。
【図6】従来の光伝送装置の構成を示す断面図である。
【符号の説明】
10;光伝送部品、11;コア、12;クラッド、13;保護部、
21〜26;加熱加圧金型。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an optical transmission component and a method of manufacturing the same, and more particularly, to an optical transmission component including a plastic optical waveguide and a light guide for transmitting light, and a method of manufacturing the same.
[0002]
[Prior art]
Conventional optical waveguides are mainly optical fibers comprising a core and a clad for transmitting light. Some of the optical fibers are made up of a plurality of sheet-shaped optical fibers due to their use and ease of use. Further, the material is divided into glass and plastic, and plastic POF (plastic optical fiber) has begun to be put into practical use because of the ease of connection between fibers. In conventional POF production, optical fibers are bundled one by one. However, productivity is poor. Recently, a method of directly forming a fiber sheet with a mold (Japanese Patent Laid-Open No. 10-50968) or a film-like plastic sheet has been proposed. A method of forming a fiber sheet by an embossing method (Japanese Patent Laid-Open No. 10-54918) has been proposed.
[0003]
Further, the ends of the fibers are tapered in order to easily connect the fibers to each other (Patent No. 3,158,105). (Japanese Patent Application Laid-Open No. 10-50968) has been proposed. In addition, as a method of processing into a tapered shape, a method of making a tapered hole in a block of a core material with a laser and filling the portion with a clad material (Japanese Patent Application Laid-Open No. 8-179131), or a method of forming a bundle of fibers. There is a method of processing into a taper shape by heating and vibrating (Japanese Patent Application Laid-Open No. 64-11922).
[0004]
Furthermore, there are many uses for optical transmission components (waveguides). For example, optical transmission is performed using optical wiring instead of so-called electric wiring, such as optical interconnection between boards on which electronic circuits are integrated in a computer or the like, between boards, or between chips.
[0005]
FIG. 6 shows the configuration of a conventional optical transmission device such as an LD (laser diode) (or PD (photodiode)). The longitudinal shape of a normal optical transmission component 76 including the core 74 and the clad 75 is linear. Therefore, by adjusting the height of the substrate 71, the light emitting unit 73 of the LD 72 (or the light receiving unit of the PD) and the optical transmission component 76 are aligned. In detail, in FIG. 6A, a hole 78 is provided at a predetermined position of the substrate 71 so as to match the height of the waveguide 77 of the optical transmission component 76, and the LD 72 is installed in the hole 78 and the position is determined. We are adjusting. Alternatively, as shown in FIG. 6B, in the case of a reflection-type optical transmission component 76, light enters a hole 78 provided in the substrate 71 so that the incident light passing through the reflection surface 79 and the waveguide 77 coincide with each other. The transmission component 76 is installed for positioning. As described above, since the optical transmission component 76 is linear, the degree of freedom in arranging the components is narrowed, and a process of cutting the substrate 71 to provide the hole 78 in the substrate 71 is added.
[0006]
As described above, if the optical transmission component has a structure that can be easily adjusted according to the optical transmission configuration, for example, the arrangement of electronic circuits and the like in the board and can maintain the shape, the degree of freedom in designing the optical transmission configuration and the component assembling speed can be improved. It has become clear that equipment using extremely high performance light can be provided.
[0007]
[Problems to be solved by the invention]
However, according to the related art, the shape of the light guide cannot be freely changed.
The present invention has been made to solve this problem, and an optical transmission component that can easily deform the shape of a component that transmits light in accordance with an optical transmission configuration, and that can maintain that shape during assembly, and the like. It is intended to provide a manufacturing method.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the optical transmission component of the present invention is configured to include a plurality of light guide portions including a core portion and a clad portion, and a protection portion disposed between the light guide portions. It is characterized by having both functions of freely changing the shape and maintaining the shape. Therefore, it is possible to provide an optical transmission component having a high degree of freedom in designing the optical transmission configuration and a high component assembling speed.
[0009]
In addition, since the shape of the optical transmission component is freely deformed at a predetermined temperature or higher, it is possible to provide an optical transmission component having a high degree of freedom in designing an optical transmission configuration.
[0010]
Further, according to another aspect of the present invention, there is provided a light transmitting component manufacturing method, wherein a first protective portion forming step of forming a bottom portion of the protective portion, a first cladding portion forming step of forming a bottom portion of the cladding portion, Forming a core portion, forming a clad portion all around the core portion, forming a clad portion around the core portion, forming a protection portion all around the light guide portion, forming a second protection portion. Having. Accordingly, it is possible to manufacture an optical transmission component that can easily deform the shape of the component that transmits light according to the optical transmission configuration and that can maintain the shape during assembly.
[0011]
In the second clad portion forming step, an uncured ultraviolet-curable resin material is applied to the surface of the core portion, and ultraviolet rays are irradiated from the end of the core portion, and ultraviolet-cured to a predetermined thickness from the surface of the core portion. After the resin material is cured, it is preferable to form the second clad by removing the uncured ultraviolet curable resin material.
[0012]
Further, after the second protection portion forming step, the protection portion is softened at a predetermined temperature, the optical transmission component is deformed into an arbitrary shape, and a process of cooling and solidifying the shape while maintaining the shape is performed. An optical transmission component that can maintain its shape can be manufactured.
[0013]
In addition, the light guide section includes a plurality of light guide sections including a core section and a clad section, and a protection section disposed between the light guide sections, and the protection section includes light having a softening temperature lower than that of the light guide section. The protection part is softened at a predetermined temperature, the optical transmission part is deformed into an arbitrary shape, and is cooled and solidified while maintaining the shape. Therefore, an optical transmission component having a high degree of freedom in designing the optical transmission configuration and having a high component assembling speed can be manufactured.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
The optical transmission component of the present invention has both functions of freely changing the shape and maintaining the shape.
[0015]
【Example】
FIG. 1 is a diagram showing a configuration of an optical transmission component according to one embodiment of the present invention. FIG. 3A is a perspective view, and FIG. 3B is a cross-sectional view taken along line AA ′ of FIG. As shown in FIG. 1, the optical transmission component 10 according to the present embodiment includes a plurality of light guides including a core 11 and a clad 12, and a protection unit 13 disposed between the light guides. I have. In addition, a material whose softening temperature is lower than that of the light guide member is used for the protection portion 13. According to the optical transmission component of the present embodiment having such a configuration, the temperature can be raised to a temperature equal to or higher than the softening temperature of the protection unit 13 so that the optical transmission component can be freely deformed into a shape according to a use condition. In addition, although metal is also conceivable as a member of the protection unit 13, if bent, the light guide unit may be damaged. Also, it is difficult to form the target shape by springback. At the time of deformation, since the protection portion 13 is in a softened state, a large load is hardly applied to the light guide portion, and damage to the light guide portion can be reduced. Further, as a method of deforming the shape of the optical transmission component according to the present embodiment, the optical transmission component 10 can be deformed by a shape deformation device capable of heating and pressing, as described later.
[0016]
Next, an apparatus for deforming the shape of an optical transmission component according to the present embodiment will be described. FIG. 2 is a sectional view showing the configuration of the optical transmission component shape deforming device. The shape deforming device shown in FIG. 1 includes a plurality of heating and pressing dies 21 to 26. Each of the heating / pressing dies 21 to 26 is heated by a heating means (not shown), and can be further pressurized by an external pressure.
[0017]
An operation of deforming the optical transmission component of the present embodiment into a desired shape using the shape deforming device having such a configuration will be described. First, as shown in FIG. The transmission component 10 is set. Then, the optical transmission component 10 is heated to a temperature equal to or higher than the softening temperature of the protection unit. Thereafter, the optical transmission component 10 is pressurized in the direction of the arrow in the order of the heating and pressing mold 22 and the heating and pressing molds 23 and 25 to deform the optical transmission component 10 as shown in FIG. While maintaining this state, the protective part is cooled to a temperature lower than the softening temperature. After curing, remove it from the mold. The optical transmission component 10 before deformation shown in FIG. 3A is deformed into a multi-stage shape as shown in FIG. 3B, or the distance between the light guide parts is reduced as shown in FIG. Or a deformation that can be performed.
[0018]
Next, the manner in which the optical transmission component of this embodiment is attached to an optical element having an optical transmission configuration will be described. FIG. 4 is a diagram illustrating a state in which the optical transmission component of the present embodiment is attached to an LD. As shown in the figure, since the shape of the optical transmission component 10 is deformed according to the arrangement of the light emitting portion 73 of the substrate 71 and the LD 72, the components such as the substrate 71 and the LD 72 can be easily attached without additional processing. Can be. Further, it is possible to follow a change in component specifications, for example, a change in the interval between the LD light emitting units. In addition, a waveguide of a film sheet having no rigidity is generally used. However, since the optical transmission component has rigidity at the protective portion, it can be easily positioned.
[0019]
Next, a method for manufacturing the optical transmission component of the present embodiment will be described. FIG. 5 is a diagram illustrating a manufacturing process of the optical transmission component of the present embodiment. In the figure, first, the manufacturing process of the optical transmission component of the present embodiment includes: (1) a first protection portion forming step of forming a protection portion bottom portion, and (2) a first cladding portion forming step of forming a cladding bottom portion. (3) Core part forming step, (4) Second clad part forming step of forming a clad part all around the core part, (5) Second protective part formation forming a protective part all around the light guide part. And (6) separating the manufactured optical transmission component from the device. An optical transmission component is manufactured in the steps (1) to (6). The protective part material here is, for example, a thermoplastic resin such as ABS resin (thermal deformation temperature 77 ° C.), the core material is a thermoplastic resin such as acrylic resin (PMMA) (thermal deformation temperature 95 ° C.), and the clad material is the core material. It is a UV (ultraviolet) curable resin having a higher refractive index. In FIG. 5, the transfer table 51 has a ring shape, and has a mechanism that works in conjunction with a driving device 52. An apparatus for forming a shape in each process is installed on the transfer table 51. The driving device 52 rotates and stops at a position and timing according to each process. In order to improve the positional accuracy in the step of sequentially laminating each material, the apparatus is configured to perform all the steps without separating from the transfer table 51. The apparatus configuration and operation in each step will be described below.
[0020]
{Circle around (1)} The first protective part forming step of forming the protective part bottom includes a protective member transfer mask 53 having a protective part bottom shape, a doctor blade 54 for adjusting the height, and a protective material coating machine 55 for applying the protective material. Have. Then, the molten protective member is applied to the inside of the protective member transfer mask 53 by the protective material coating machine 55. By moving the doctor blade 54 on the protection member transfer mask 53, the inside of the protection member transfer mask 53 is evenly filled with the protection member, and the height is adjusted while scraping out the excess protection member, thereby reducing the shape of the bottom of the protection part. Form. When the molten protective member is cooled and solidified, the protective member transfer mask 53 is peeled off and moved to the next step.
[0021]
{Circle around (2)} The first clad portion forming step of forming the clad bottom portion includes a clad material coating machine (not shown) for applying an uncured UV (ultraviolet) curable resin and a clad material transfer of a clad shape made of a transparent material. It has a mold 56, a UV (ultraviolet) irradiation device 57 for curing the UV curable resin, and a doctor blade 58. Then, a clad material (uncured UV curable resin) is applied to the clad material transfer mold 56 from a clad material application machine. The doctor blade 58 moves on the clad material transfer mold 56, thereby uniformly filling the clad material transfer mold 56 with the clad material, and adjusting the height while scraping out excess clad material to form a clad part shape. I do. The clad material transfer mold 56 is turned over, and is placed while being aligned with the shape of the protection portion. When the clad material is cured by the UV irradiation device 57, the clad material transfer mold 56 is separated and moved to the next step.
[0022]
(3) The core portion forming step includes a core material application machine (not shown) for applying the molten core material, a core material transfer die 59 for transferring the core shape, and a doctor blade 60 for height adjustment. I have. Then, the core material (melted thermoplastic resin) is applied to the core material transfer mold 59 heated to a softening temperature or higher from the core material applicator. The doctor blade 60 moves on the core material transfer die 59, so that the core material is evenly filled in the core material transfer die 59, and the height is adjusted while scraping out excess core material to form the core portion shape. I do. The core material transfer mold 59 is turned over and placed on the clad portion while being positioned. When the core material transfer mold 59 is cooled and solidified to a temperature lower than the softening temperature of the core material, the core material transfer mold 59 is separated and moved to the next step.
[0023]
{Circle around (4)} The second clad portion forming step of forming the clad portion around the entire core portion includes a clad material transfer mask 61 having a clad shape, a doctor blade (not shown) for adjusting the height, and a clad material for coating the clad. It has a coating machine 62, a UV irradiation device 63, and a removal machine 64. Then, a clad material (uncured UV curable resin) is applied from the clad coating machine 62 to the inside of the clad material transfer mask 61. The cladding material transfer mask 61 is removed, and a UV irradiation device 63 is installed on the input / output surface of the light guide section, and UV irradiation is performed. The UV light leaking from the cladding surface irradiates the core material and cures. The uncured resin is removed by the remover 64 (eg, washing with a liquid).
[0024]
{Circle around (5)} The second protection section forming step of forming the protection section all around the light guide section includes a protection member transfer mask 65 having a protection section shape, a doctor blade 66 for adjusting the height, and a protection material coating for applying a protection material. Machine 67. Then, the molten protective member is applied to the inside of the protective member transfer mask 65 by the protective material coating machine 67. When the doctor blade 66 moves on the protection member transfer mask 65, the protection member is evenly filled inside the protection member transfer mask 65, and the height is adjusted while scraping out the excess protection member to form the protection part shape. I do. When the molten protective member is cooled and solidified, the protective member transfer mask 65 is peeled off and moved to the next step.
[0025]
(6) In the peeling step of peeling the manufactured optical transmission component from the apparatus, the optical transmission component formed in the above steps (1) to (5) is peeled off from the transfer table 51 by the peeling jig 68.
[0026]
It should be noted that the present invention is not limited to the above embodiment, and it goes without saying that various modifications and substitutions can be made within the scope of the claims.
[0027]
【The invention's effect】
As described above, the optical transmission component of the present invention, which includes a plurality of light guide portions including a core portion and a clad portion, and a protection portion disposed between the light guide portions, has an arbitrary shape. It is characterized by having both functions of proper deformation and shape maintenance. Therefore, it is possible to provide an optical transmission component having a high degree of freedom in designing the optical transmission configuration and a high component assembling speed.
[0028]
Further, since the shape of the optical transmission component is freely deformed at a predetermined temperature or higher, it is possible to provide an optical transmission component having a high degree of freedom in designing the optical transmission configuration.
[0029]
Further, according to a method of manufacturing a light transmitting component as another invention, a first protection section forming step of forming a bottom section of the protection section, a first cladding section forming step of forming a bottom section of the cladding section, Forming a core portion, forming a clad portion all around the core portion, forming a clad portion around the core portion, forming a protection portion all around the light guide portion, forming a second protection portion. Having. Therefore, it is possible to manufacture an optical transmission component that can easily deform the shape of the component that transmits light according to the optical transmission configuration and that can maintain the shape during assembly.
[0030]
In the second clad part forming step, an uncured ultraviolet curable resin material is applied to the surface of the core part, and ultraviolet rays are irradiated from the end of the core part, and the ultraviolet curable resin is cured to a predetermined thickness from the surface of the core part. After the resin material is cured, it is preferable to form the second clad by removing the uncured ultraviolet curable resin material.
[0031]
Furthermore, after the second protection portion forming step, the protection portion is softened at a predetermined temperature, the optical transmission component is deformed into an arbitrary shape, and a process of cooling and solidifying while maintaining the shape is performed, thereby assembling during assembly. An optical transmission component that can maintain its shape can be manufactured.
[0032]
In addition, the light guide section includes a plurality of light guide sections including a core section and a clad section, and a protection section disposed between the light guide sections, and the protection section is formed of a material having a softening temperature lower than that of the light guide section. The protection part is softened at a predetermined temperature, the optical transmission part is deformed into an arbitrary shape, and is cooled and solidified while maintaining the shape. Therefore, an optical transmission component having a high degree of freedom in designing the optical transmission configuration and having a high component assembling speed can be manufactured.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of an optical transmission component according to one embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating a configuration of an apparatus for deforming the shape of an optical transmission component.
FIG. 3 is a perspective view showing an optical transmission component before and after deformation.
FIG. 4 is a diagram illustrating a state in which the optical transmission component of the present embodiment is attached to an LD.
FIG. 5 is a diagram illustrating a manufacturing process of the optical transmission component of the present embodiment.
FIG. 6 is a cross-sectional view illustrating a configuration of a conventional optical transmission device.
[Explanation of symbols]
10; optical transmission component; 11; core; 12; clad; 13;
21 to 26;

Claims (6)

コア部とクラッド部からなる複数本の導光部と、該導光部間に配置した保護部とを含んで構成されている光伝送部品において、
光伝送部品の形状の自在な変形と形状維持の両方の機能を有することを特徴とする光伝送部品。
In a light transmission component configured to include a plurality of light guides including a core and a clad, and a protection unit disposed between the light guides,
An optical transmission component having both functions of freely changing the shape of the optical transmission component and maintaining the shape.
前記光伝送部品の形状が所定の温度以上にて自由に変形する請求項1記載の光伝送部品。2. The optical transmission component according to claim 1, wherein the shape of the optical transmission component is freely deformed at a predetermined temperature or higher. コア部とクラッド部からなる複数本の導光部と、該導光部間に配置した保護部とを含んで構成されている光伝達部品の製造方法において、
前記保護部の底部を形成する第1の保護部形成工程と、前記クラッド部の底部を形成する第1のクラッド部形成工程と、前記コア部を形成するコア部形成工程と、前記コア部の全周に前記クラッド部を形成する第2のクラッド部形成工程と、前記導光部の全周に前記保護部を形成する第2の保護部形成工程とを有することを特徴とする光伝送部品の製造方法。
In a method for manufacturing a light transmission component configured to include a plurality of light guide portions including a core portion and a clad portion, and a protection portion disposed between the light guide portions,
A first protection part forming step of forming a bottom part of the protection part, a first cladding part forming step of forming a bottom part of the cladding part, a core part forming step of forming the core part, An optical transmission component, comprising: a second cladding portion forming step of forming the cladding portion all around; and a second protection portion forming step of forming the protection portion all around the light guide portion. Manufacturing method.
前記第2のクラッド部形成工程では、未硬化の紫外線硬化樹脂材料を前記コア部の表面に塗布し、前記コア部の端部から紫外線を照射し、前記コア部の表面から所定の厚さに紫外線硬化樹脂材料を硬化させた後、未硬化の紫外線硬化樹脂材料を除去することで第2のクラッド部を形成する請求項3記載の光伝送部品の製造方法。In the second clad portion forming step, an uncured ultraviolet curable resin material is applied to the surface of the core portion, and ultraviolet light is irradiated from an end of the core portion to a predetermined thickness from the surface of the core portion. The method for manufacturing an optical transmission component according to claim 3, wherein the second clad portion is formed by removing the uncured ultraviolet curable resin material after curing the ultraviolet curable resin material. 前記第2の保護部形成工程後、前記保護部を所定の温度にて軟化させ、光伝送部品を任意の形状に変形させ、形状を維持したまま冷却固化する工程を行う請求項3記載の光伝送部品の製造方法。4. The light according to claim 3, wherein after the second protection portion forming step, a step of softening the protection portion at a predetermined temperature, deforming the optical transmission component into an arbitrary shape, and cooling and solidifying while maintaining the shape is performed. Manufacturing method of transmission parts. コア部とクラッド部からなる複数本の導光部と、該導光部間に配置した保護部とを含んで構成され、該保護部は軟化温度が導光部より低い材料からなる光伝送部品であって、該保護部を所定の温度にて軟化させ、光伝送部品を任意の形状に変形させ、形状を維持したまま冷却固化することを特徴とする光伝送部品の製造方法。An optical transmission component comprising a plurality of light guides including a core portion and a clad portion, and a protection portion disposed between the light guide portions, wherein the protection portion is made of a material whose softening temperature is lower than that of the light guide portion. A method for manufacturing an optical transmission component, comprising softening the protective portion at a predetermined temperature, deforming the optical transmission component into an arbitrary shape, and cooling and solidifying the optical transmission component while maintaining the shape.
JP2002185429A 2002-06-26 2002-06-26 Optical transmission component and method of manufacturing the same Pending JP2004029365A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009086335A (en) * 2007-09-28 2009-04-23 Sumitomo Osaka Cement Co Ltd Optical device
JP2012198488A (en) * 2011-03-10 2012-10-18 Sumitomo Bakelite Co Ltd Optical waveguide and electronic apparatus
US8617335B2 (en) 2005-09-09 2013-12-31 Ricoh Company, Ltd. Miniature cell array structure and manufacturing method of miniaturized composite component using such a miniature cell array structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8617335B2 (en) 2005-09-09 2013-12-31 Ricoh Company, Ltd. Miniature cell array structure and manufacturing method of miniaturized composite component using such a miniature cell array structure
JP2009086335A (en) * 2007-09-28 2009-04-23 Sumitomo Osaka Cement Co Ltd Optical device
JP2012198488A (en) * 2011-03-10 2012-10-18 Sumitomo Bakelite Co Ltd Optical waveguide and electronic apparatus

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