JPH0364704A - Manufacturing method of plastic optical transmission body - Google Patents
Manufacturing method of plastic optical transmission bodyInfo
- Publication number
- JPH0364704A JPH0364704A JP1200379A JP20037989A JPH0364704A JP H0364704 A JPH0364704 A JP H0364704A JP 1200379 A JP1200379 A JP 1200379A JP 20037989 A JP20037989 A JP 20037989A JP H0364704 A JPH0364704 A JP H0364704A
- Authority
- JP
- Japan
- Prior art keywords
- monomer
- polymer
- refractive index
- molded body
- optical transmission
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000003287 optical effect Effects 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000004033 plastic Substances 0.000 title claims description 6
- 229920003023 plastic Polymers 0.000 title claims description 6
- 239000000178 monomer Substances 0.000 claims abstract description 36
- 229920000642 polymer Polymers 0.000 claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract description 2
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 5
- 239000004926 polymethyl methacrylate Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920006037 cross link polymer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- RSVZYSKAPMBSMY-UHFFFAOYSA-N 2,2,3,3-tetrafluoropropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)F RSVZYSKAPMBSMY-UHFFFAOYSA-N 0.000 description 1
- YSYRISKCBOPJRG-UHFFFAOYSA-N 4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole Chemical compound FC1=C(F)OC(C(F)(F)F)(C(F)(F)F)O1 YSYRISKCBOPJRG-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003869 coulometry Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 perfluoroalkyl methacrylate Chemical compound 0.000 description 1
- 239000013308 plastic optical fiber Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920013730 reactive polymer Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920006249 styrenic copolymer Polymers 0.000 description 1
Landscapes
- 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、光集束性レンズ、光集束性ファイバー等に利
用できる、線状体又は棒状体の中心から外周に向かって
連続的な屈折率分布を有するプラスチック光伝送体の製
造方法に関するものである。Detailed Description of the Invention [Industrial Field of Application] The present invention provides a continuous refractive index from the center to the outer periphery of a linear body or rod-shaped body, which can be used for light-focusing lenses, light-focusing fibers, etc. The present invention relates to a method of manufacturing a plastic light transmission body having a distribution.
［従来の技術］
線状体又は棒状体の中心から外周に向かってている。し
かしながら、ガラス製の屈折率分布型光伝送体は、生産
性が低く、高価なものとなり、かつ屈曲性にも乏しいと
いう問題点を有している。[Prior Art] It is directed from the center of a linear body or rod-shaped body to the outer periphery. However, the gradient index optical transmission body made of glass has problems in that it has low productivity, is expensive, and has poor flexibility.
このようなガラス製の屈折率分布型光伝送体に対し、プ
ラスチック製の屈折率分布型光伝送体を製造する方法が
い（つか提案されており、例えば、次の如きものである
。（１）イオン架橋重合体よりなる合成樹脂棒の中心軸
よりその表面に向かって金属イオンを連続的に濃度変化
をもたせるようにする方法が特公昭４７−２６９１３号
公報に、（２）屈折率の異なる２種板、ｈの透明な重合
体の混合物より製造された合成樹脂棒を特定の溶剤で処
理し、前記合成樹脂棒の構成成分の少なくとも１つを部
分的に溶解除去することによって製造する方法が特公昭
４７−２８０５９号公報に、（３）２種の屈折率の異な
るモノマーであり重合速度の異なるものを混合し重合速
度をコントロールして表面から内部にわたり連続的に屈
折率分布ができるようにしたものが特公昭５４−３０３
０１号公報に、（４）架橋重合体棒状物の表面より屈折
率の低いモノマーをその中心に向かって拡散させて、表
面より内部にわたり、このモノマーの含有率が連続的に
変化するように配置して屈折率分布をもたせたのちに重
合して屈折率分布をもたせたものが特公昭５２−５８５
７号公報、特公昭５６−３７５２１号公報に、および（
５）反応性を有する重合体成形物の表面より、該重合体
よりも低い屈折率を有する低分子化合物を拡散、反応さ
せて、表面より内部にわたり連続的に屈折率分布をもた
せるようにしたものが特公昭５７−２９６８２号公報に
示されている。In contrast to such a glass-made refractive index distribution type optical transmission body, there is a method of manufacturing a plastic refractive index distribution type optical transmission body (some proposals have been made, for example, the following method. (1) Japanese Patent Publication No. 47-26913 describes a method of continuously changing the concentration of metal ions from the central axis toward the surface of a synthetic resin rod made of an ionically crosslinked polymer. A method of producing a synthetic resin rod made from a mixture of transparent polymers of the seed plate h with a specific solvent to partially dissolve and remove at least one of the constituent components of the synthetic resin rod. According to Japanese Patent Publication No. 47-28059, (3) two types of monomers with different refractive indexes and different polymerization rates are mixed to control the polymerization rate to create a continuous refractive index distribution from the surface to the inside. The one that did this was the special public service in 1974-303.
No. 01, (4) A monomer having a lower refractive index than the surface of the crosslinked polymer rod is diffused toward the center, and the content of this monomer is arranged so as to vary continuously from the surface to the inside. The product obtained by polymerizing and giving a refractive index distribution was published in Japanese Patent Publication No. 52-585.
7, Japanese Patent Publication No. 56-37521, and (
5) A low-molecular compound having a refractive index lower than that of the polymer is diffused and reacted with the surface of a reactive polymer molded product to provide a continuous refractive index distribution from the surface to the inside. is shown in Japanese Patent Publication No. 57-29682.
［発明が解決しようとする諜Ｂ］
これら従来法の共通した問題点としては、線することや
得られる屈折率分布型光伝送体の長さが限定されるなど
から、生産工程は断続的であり、換言すればバッチ式生
産方法であり、生産性が極めて悪いのと同時にバッチご
との製造条件の選定が極めて難しかったり、得られるレ
ンズ長を一定のものとすることが難しく、再現性が得ら
れない等、工業化技術としては、それぞれ問題点を有す
る製造方法である。[Intelligence B that the invention seeks to solve] Common problems with these conventional methods include the production process being intermittent, such as the formation of lines and the limited length of the resulting gradient index optical transmitter. In other words, it is a batch production method, which has extremely poor productivity, and at the same time it is extremely difficult to select manufacturing conditions for each batch, and it is difficult to maintain a constant lens length, making it difficult to achieve reproducibility. Each of these manufacturing methods has its own problems as an industrial technology, such as not being able to be used.
［課題を解決するための手段］
本発明は、上記従来技術が抱えていた断続的な生産工程
による不合理性を解決し、ガラスあるいはプラスチック
光ファイバーと同様な連続的な生産を可能とするもので
ある。[Means for Solving the Problems] The present invention solves the irrationality caused by the intermittent production process of the above-mentioned conventional technology, and enables continuous production similar to glass or plastic optical fibers. be.
すなわち本発明の要旨とするところは、屈折率ｎ、なる
重合体（Ａ）の糸状物の上から重合体（Ａ）よりも低い
屈折率ｎ２の重合体を与える単量体（Ｂ）を含んだ単量
体と重合体（Ｃ）とを主体とする重合性組成物をコーテ
ィングした後に単量体ＣＢ）を重合体（Ａ）の成形物中
に拡散させることによって、糸状の中心部から外周部へ
単量体（Ｂ）の連続的な濃度分布を与えた後、あるいは
与えながら、未重合の単量体を重合することを特徴とす
る中心から外周に向かって連続的な屈折率分布を有する
プラスチック光伝送体の製造方法にある。That is, the gist of the present invention is to include a monomer (B) that provides a polymer having a refractive index n2 lower than that of the polymer (A) from above the filamentous material of the polymer (A) having a refractive index n. By coating a polymerizable composition mainly consisting of a monomer and a polymer (C) and then diffusing the monomer CB) into the molded product of the polymer (A), the fibers are coated from the center to the outer periphery. A continuous refractive index distribution from the center to the outer periphery is produced by polymerizing unpolymerized monomers after or while providing a continuous concentration distribution of the monomer (B) to the part. A method of manufacturing a plastic optical transmission body comprising:
本発明の製造方法の１例を示すと第１図のようになる。An example of the manufacturing method of the present invention is shown in FIG. 1.
屈折率ｎ、なる重合体（Ａ）をノズル（１）より糸状に
賦形する。その後、この糸状物を単量体（Ｂ）と重合体
（Ｃ）とを主体とする重合性組成物の入ったコーティン
グポット（２）中を通過させコーティングした後に単量
体（Ｂ）の重合体（Ａ）の糸状成形物中への拡散部（３
）を通して単量体（Ｃ）を重合体（Ａ）の糸条成形物中
に拡散させて単量体（Ｂ）の連続的な分布を付けたのち
に、ついで活性光線照射部〈８）に導き、未重合単量体
を重合固化させて、ニップローラー（１０）をへて巻取
りドラム（１１）に巻取り、目的の屈折率分布型光伝送
体（１２）を連続的に得る。このとき、拡散部（３）の
温度コントロールを容易にすることや活性光線による重
合を容易にする目的で、ガス導入孔（９）より窒素、ア
ルゴンガス等の気体を導入することが望ましい。A polymer (A) having a refractive index of n is shaped into a thread form through a nozzle (1). Thereafter, this filamentous material is passed through a coating pot (2) containing a polymerizable composition mainly composed of monomer (B) and polymer (C), and then coated with a polymerizable composition containing monomer (B). Diffusion part (3) of the coalescence (A) into the thread-like molded product
) to provide a continuous distribution of monomer (B) by diffusing the monomer (C) into the yarn molded product of polymer (A), and then to the actinic ray irradiation part <8). The unpolymerized monomers are polymerized and solidified, passed through a nip roller (10), and wound onto a winding drum (11) to continuously obtain the desired refractive index distribution type optical transmission body (12). At this time, it is desirable to introduce a gas such as nitrogen or argon gas through the gas introduction hole (9) in order to facilitate temperature control of the diffusion section (3) and to facilitate polymerization by actinic rays.
本発明を実施するに際して用いる比較的高い屈折率ｎ、
を有する重合体としてはポリメチルメタクリレート（ｎ
ｌ＝１．４９）、ポリスチレン（ｎ１＝１．５８）、ス
チレン系コポリマー（ｎ１＝１．５０〜１．５８Ｌポリ
−４−メチルペンテン１ （ｎ＋−１，４６） 、ポリ
カーボネート（ｎ、＝１．５０〜１．５７ ） 、ポリ
クロロスチレン（ｎ１＝１．６１）などを挙げることが
でき、低い屈折率ｎ２の重合体を形威しうる単量体（Ｂ
）としてはパーフルオロアルキルメタクリレート（ｎ
ｔ ＝ １ 、３７〜１．４０ ） 、α−フルオロア
クリレ−） （ｎ−＝１．３７〜１．４２ ） 、パー
フルオロ−２，２−ジメチル−１，３−ジオキゾールな
どを挙げることができ、単量体（Ｂ）は単独で使用する
こともできるが、２種以上の単量体（Ｂ）の混合物或い
は他の単量体、例えばヌククリ１ノート、アクリレ・−
１・、スチレンなどを併用してもよい。′また、単量体
（Ｂ）と併用する重合体（Ｃ）と１〜ては単量体（Ａ）
と同一のものや単量体（Ｂ）を主とするものの重合体な
どを用いることができる。単量体（Ｂ）と重合体（Ｃ）
とを主体とする重合性組成物を゛コーティング材として
いるため、綿状重合体（Ａ）の外表面に所定厚に均一な
コ・−ティング層を形成することができ、均一性に優れ
た屈折率分布型プラスチック光伝送体とすることができ
る。A relatively high refractive index n used in carrying out the present invention,
Polymethyl methacrylate (n
l=1.49), polystyrene (n1=1.58), styrenic copolymer (n1=1.50-1.58L poly-4-methylpentene 1 (n+-1,46), polycarbonate (n,=1 Monomers (B
) as perfluoroalkyl methacrylate (n
t = 1, 37-1.40), α-fluoroacryle-) (n- = 1.37-1.42), perfluoro-2,2-dimethyl-1,3-dioxole, etc. Monomer (B) can be used alone, but it can also be used as a mixture of two or more monomers (B) or with other monomers, such as Nukukuri 1 Note, Acrylic.
1., styrene, etc. may be used in combination. 'Also, the polymer (C) used in combination with the monomer (B) and the monomer (A)
It is possible to use the same material or a polymer mainly composed of monomer (B). Monomer (B) and polymer (C)
Since the coating material is a polymerizable composition mainly composed of It can be a gradient index plastic optical transmission body.
以下実施例により本発明を更に詳細に説明する。The present invention will be explained in more detail with reference to Examples below.
［実施例］
実施例１
ポリメチルメタクリ＋７− １−（三菱レイヨン社製ア
クリレートシＨ）を第１図に示す装置に供給し２３０°
Ｃに加熱したノズル（１）より押しだして直径５００−
の糸状物とし、その後２，２，３．３テトラフルオロプ
ロピルメタクリレート５５ｆｆｉＪＪ部、メチルメタク
リレ−１・２５重量部、ポリメチルメタクリレート２０
重量部、ｌ−ヒドロキシシクロへキシルフＪ、ニルケト
ン１重泪部とからなる重合性組成物の人ったコーティン
グボッ１−（２）を通過させて膜厚２００１！ｍの厚さ
に：コーティングした後、７０°ｃ １２）Ｎｚガスが
５ｐ、／ｍｉｎで流れている拡散部（３）に導き単量体
を糸条物中に拡散させ３分後に２０賀のケえカルランプ
８本で紫Ａ線を３分間照射して光重合して直径９００１
ｓ＆の屈折率分布型光伝送体をフイた。[Example] Example 1 Polymethyl methacrylate +7-1- (Acrylate ShiH manufactured by Mitsubishi Rayon Co., Ltd.) was supplied to the apparatus shown in Fig. 1 and heated at 230°.
Push it out from the nozzle (1) heated to C and have a diameter of 500-
After that, 55ffiJJ parts of 2,2,3.3 tetrafluoropropyl methacrylate, 1.25 parts by weight of methyl methacrylate, and 20 parts by weight of polymethyl methacrylate were added.
A polymerizable composition consisting of 1 part by weight, 1 part by weight of l-hydroxycyclohexylph J, and 1 part by weight of nylketone was passed through a coating box 1-(2) with a film thickness of 2001. 12) After coating, the monomer is introduced into the diffusion section (3) where Nz gas is flowing at 5p/min, and the monomer is diffused into the yarn material. Irradiated with violet A rays for 3 minutes using 8 Keikal lamps and photopolymerized, resulting in a diameter of 9001 mm.
We used S&'s refractive index gradient optical transmission body.
この光伝送体の屈折率分布をインターフアコ干渉顕微鏡
で測定したところ、中心屈折率が１、４８５、外周部の
屈折率が１．４５２であり、中心から外周部Ｇこかけて
連続的Ｇこ変化していた。When the refractive index distribution of this optical transmission body was measured using an interfaco interference microscope, the center refractive index was 1,485, and the refractive index at the outer periphery was 1.452. It was changing.
また、この光伝送体を３．５ ｍｐａの長さにその両端
を研磨し画像を観察したところ、倒立実像が観察された
。Further, when both ends of this optical transmission body were polished to a length of 3.5 MPa and an image was observed, an inverted real image was observed.
また、この画像は歪みの少ないものであった。Moreover, this image had little distortion.
実施例２
メチルメタクリレート９８重量部、メチルアクリレート
２重量部、ｔｅｒｔ、−ブチルメルカプタン、ジーｔ、
ｅｒｔ−ブチルパーオキサイド０．００１７部からなる
単量体混合物を空気にの接触を絶った状態で調合し、熱
交換機で３０゛Ｃに調温した後１５１、 ／ｂｒで連続
的に反応槽に供給した。反応槽内には窒素を封太し、内
圧を８ ｋｇ／Ｃ４ゲージ圧とし重合温度は１５０°Ｃ
に調節した。約７．８時間後、供給速彦を２５４２／ｈ
ｒとし、連続定常運転に移行した。撹ばん回転数９０ｒ
ｐｍとし充分な混合を行わせ、平均滞在時間を４６７時
間とした。ベント押出機の温度はベント・部２５０°Ｃ
１押出部２３０°Ｃ、ダイス２２５ ’Ｃとし、ベント
部真空度ば９＋ｎｖａＨｇとした。３．２帥直経の円型
のノズルから押しだし直径６００７ｆｆｉのストランド
ファイバーを得た。このストランドフ・アイバーを２．
２．３．３゜＋Ｌ ４ｔ ５゜５−オクタフルオロペン
チルメタクリレ−ト２０電量部、２，２．３．３−テＩ
・ラフルオリプロビルメタクリ１６ノ・−１３０重量部
、メチルメタクリレ−１・３１重量部、ポリメチルメタ
クリレート１９重量部、１−ヒドロキシシクロへキシル
フェニルケトン１重量部からなる重合性組成物の入った
コーティングボットを通過さ・ぜ１７５μの厚さにコー
ティングした後に７０″ＣのＮ、ガスが５１ ／ｓｉｎ
で浦れている拡散部（３）に導き、３分後に２０匈のケ
ミカルランプ８本で紫外線を３分間照射して光重合して
直径９５０−の屈折率分布型光伝送体を得た。Example 2 98 parts by weight of methyl methacrylate, 2 parts by weight of methyl acrylate, tert, -butyl mercaptan, t,
A monomer mixture consisting of 0.0017 parts of ert-butyl peroxide was prepared without contact with air, and after the temperature was adjusted to 30°C using a heat exchanger, it was continuously transferred to a reaction tank at 151°C/br. supplied. The reaction tank was filled with nitrogen, the internal pressure was 8 kg/C4 gauge pressure, and the polymerization temperature was 150°C.
It was adjusted to After about 7.8 hours, the supply speed was 2542/h.
r, and transitioned to continuous steady operation. Stirring rotation speed 90r
pm and sufficient mixing was performed, and the average residence time was 467 hours. The temperature of the vent extruder is 250°C in the vent part.
1 The extrusion part was set at 230°C, the die was set at 225'C, and the vent part vacuum was set at 9+nvaHg. 3. A strand fiber with a diameter of 6007ffi was obtained by extruding it from a 2-way circular nozzle. 2. This Strandoff Eyever.
2.3.3゜+L 4t 5゜5-octafluoropentyl methacrylate 20 coulometric parts, 2,2.3.3-teI
Contains a polymerizable composition consisting of 16-130 parts by weight of lafluoriprovir methacrylate, 1-31 parts by weight of methyl methacrylate, 19 parts by weight of polymethyl methacrylate, and 1 part by weight of 1-hydroxycyclohexylphenyl ketone. After coating to a thickness of 175μ, the gas was passed through a coating bot at 70″C and the gas was heated at 51/sin.
After 3 minutes, it was irradiated with ultraviolet rays for 3 minutes using eight 20-liter chemical lamps for photopolymerization to obtain a gradient index optical transmission body with a diameter of 950 mm.
この光伝送体の屈折率分布をインターフアコ干渉顕微鏡
で測定したところ、中心屈折率が１、４８４、外周部の
屈折率が１．４５０であり、中心から外周部にかけて連
続的６．＝変化していた。When the refractive index distribution of this optical transmission body was measured using an interfaco interference microscope, the center refractive index was 1.484, the outer peripheral refractive index was 1.450, and it was continuous from the center to the outer peripheral. = It was changing.
また、この光伝送体を３．７ ｗａの長さにその両端を
研磨し画像を観察しまたところ、倒立実像が観察された
。Further, when both ends of this optical transmission body were polished to a length of 3.7 wa and an image was observed, an inverted real image was observed.
また、この画像は歪みの少ないものであった。Moreover, this image had little distortion.
実施例３
実施例２と同様の操作をして直径６２０ ｔｓのス［・
ランドファイバーを得たいこのストランドファイバーを
２．２．３．３．４．４．５．５ −オクタフルオロペ
ンチルメタクリレ／−）３０重量部、２．２．３．３−
テトラフルオロプロピルメタクリＩ／−１３Ｏ重量部、
メチルメタクリレート２２重量部、ポリメチルメタクリ
レート１８重量部、ｌ−ヒドロキシシクロへキシルフェ
ニルケトンｉ ｉｉｔ部からなる重合性組成物の入った
コーティングポットを通過させ２００４の厚さにコーテ
ィングした後に７０″ＣのＮｔガスが５１ ／ｎ＋ｉｎ
で流れている保温基（７）に導き、３分後に２０−のケ
ミカル５フ１８本で紫外線を３分間照射して光重合して
直径１．０ ｍの屈折率分布型光伝送体を得た。Example 3 A diameter of 620 ts was obtained by performing the same operation as in Example 2.
2.2.3.3.4.4.5.5 -octafluoropentylmethacryle/-) 30 parts by weight of this strand fiber, 2.2.3.3-
Tetrafluoropropyl methacrylic I/-13O parts by weight,
It was passed through a coating pot containing a polymerizable composition consisting of 22 parts by weight of methyl methacrylate, 18 parts by weight of polymethyl methacrylate, and 1 part of l-hydroxycyclohexylphenyl ketone, coated to a thickness of 2004, and then heated at 70"C. Nt gas is 51 /n+in
After 3 minutes, it was irradiated with ultraviolet rays for 3 minutes using 5 strands of 20-chemicals to photopolymerize it to obtain a refractive index distribution type optical transmission body with a diameter of 1.0 m. Ta.
この光伝送体の屈折率分布をインターフアコ干渉顕微鏡
で測定したところ、中心屈折率が１．４８９、外周部の
屈折率が１．４４３であり、中心から外周部にかけて連
続的に変化していた。When the refractive index distribution of this optical transmission body was measured using an interfaco interference microscope, the refractive index at the center was 1.489 and the refractive index at the outer periphery was 1.443, which changed continuously from the center to the outer periphery. .
また、この光伝送体を３．８ ｔｔｍの長さにその両端
を研磨し画像を観察したところ、倒立実像が観察された
。Further, when both ends of this optical transmission body were polished to a length of 3.8 ttm and an image was observed, an inverted real image was observed.
また、この像は歪みの少ないものであった。Moreover, this image had little distortion.
［発明の効果］
本発明の製造方法により、従来技術が抱えていた断続的
な生産工程による不合理性を解決し、連続的に光伝送体
の生産が可能となった。[Effects of the Invention] The manufacturing method of the present invention solves the irrationality caused by the intermittent production process of the prior art, and makes it possible to continuously produce optical transmission bodies.
Claims (1)
物の上から重合体（Ａ）よりも低い屈折率ｎ＿２の重合
体を与える単量体（Ｂ）を含んだ単量体と重合体（Ｃ）
とを主体とする重合性組成物をコーティングした後に単
量体（Ｂ）を重合体（Ａ）の糸条物中に拡散させること
によって、糸状物の中心部から外周部へ単量体（Ｂ）の
連続的な濃度分布を与えた後、あるいは与えながら、未
重合の単量体を重合することを特徴とする中心から外周
に向かって連続的な屈折率分布を有するプラスチック光
伝送体の製造方法。A monomer containing a monomer (B) that forms a polymer (A) with a refractive index n_1 into a filament and gives a polymer with a refractive index n_2 lower than that of the polymer (A) from the top of the filament. and polymer (C)
By coating a polymerizable composition mainly composed of and then diffusing the monomer (B) into the filament of the polymer (A), the monomer (B) is distributed from the center of the filament to the outer periphery. ) Production of a plastic optical transmission body having a continuous refractive index distribution from the center to the outer periphery, characterized by polymerizing unpolymerized monomers after or while giving a continuous concentration distribution of Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200379A JPH0364704A (en) | 1989-08-03 | 1989-08-03 | Manufacturing method of plastic optical transmission body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200379A JPH0364704A (en) | 1989-08-03 | 1989-08-03 | Manufacturing method of plastic optical transmission body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0364704A true JPH0364704A (en) | 1991-03-20 |
Family
ID=16423341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1200379A Pending JPH0364704A (en) | 1989-08-03 | 1989-08-03 | Manufacturing method of plastic optical transmission body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0364704A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994004949A1 (en) * | 1992-08-17 | 1994-03-03 | Yasuhiro Koike | Method of manufacturing plastic light transmitters |
| WO2005103774A1 (en) * | 2004-04-22 | 2005-11-03 | Lite-On Japan Ltd. | Production method for graded index type optical transmission element |
-
1989
- 1989-08-03 JP JP1200379A patent/JPH0364704A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994004949A1 (en) * | 1992-08-17 | 1994-03-03 | Yasuhiro Koike | Method of manufacturing plastic light transmitters |
| US5593621A (en) * | 1992-08-17 | 1997-01-14 | Koike; Yasuhiro | Method of manufacturing plastic optical transmission medium |
| WO2005103774A1 (en) * | 2004-04-22 | 2005-11-03 | Lite-On Japan Ltd. | Production method for graded index type optical transmission element |
| JPWO2005103774A1 (en) * | 2004-04-22 | 2008-03-13 | 日本ライトン株式会社 | Manufacturing method of graded index type optical transmission body |
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