JPS6135530B2 - - Google Patents
Info
- Publication number
- JPS6135530B2 JPS6135530B2 JP8801781A JP8801781A JPS6135530B2 JP S6135530 B2 JPS6135530 B2 JP S6135530B2 JP 8801781 A JP8801781 A JP 8801781A JP 8801781 A JP8801781 A JP 8801781A JP S6135530 B2 JPS6135530 B2 JP S6135530B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- core
- master
- optical fiber
- pins
- 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.)
- Expired
Links
- 239000013307 optical fiber Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000005323 electroforming Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000000835 fiber Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010137 moulding (plastic) Methods 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3865—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using moulding techniques
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Description
【発明の詳細な説明】
本発明は複数の光フアイバを接続する複心光コ
ネクタにおける中子の中子型を製造する方法に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a core mold for a core in a multi-core optical connector for connecting a plurality of optical fibers.
複数の光フアイバを有する光フアイバケーブル
（若しくは光フアイバユニツト）同士をコネクタ
を使用して接続する場合の光フアイバ接続端の処
理方法として、従来、特開昭55−41485号公報に
開示されている光フアイバコネクタ端末の製作方
法がある。これは、第１図Ａ，Ｂに示すように、
枠体０１内に球体０２を密接させて配列し、球体
０２間にできる隙間に光フアイバ０３を挿入し、
この状態で枠体０１内に樹脂０４を流し込んで光
フアイバコネクタ端末を製作する方法である。し
かし、この方法では、光フアイバ０３の隙間への
挿入が技術的に難しく熟練を要し量産性に欠け、
また金型とヒータを要することから現場での作業
に不向きであり、更に樹脂の硬化時間が長いなど
の不具合がある。 Japanese Patent Laid-Open No. 55-41485 discloses a method for processing optical fiber connection ends when optical fiber cables (or optical fiber units) having a plurality of optical fibers are connected using connectors. There is a method for manufacturing an optical fiber connector terminal. As shown in Figure 1A and B, this means that
The spheres 02 are closely arranged in the frame 01, and the optical fiber 03 is inserted into the gap between the spheres 02.
In this state, the resin 04 is poured into the frame 01 to manufacture an optical fiber connector terminal. However, with this method, inserting the optical fiber 03 into the gap is technically difficult and requires skill, and it lacks mass productivity.
Furthermore, since it requires a mold and a heater, it is unsuitable for on-site work, and it also has disadvantages such as a long curing time for the resin.
一方、一対の光フアイバを接続する単心コネク
タとしては、第２図に示すように、光フアイバ０
３の素線の外径とほぼ同径の微***０５を偏心す
ることなく設けた中子０６の前記微***０５に光
フアイバ０３の素線を挿入し、これをスリーブ０
７内に挿入して光フアイバ０３同士を接続する方
法が知られている。この方法を複心光フアイバケ
ーブルの接続に利用することが考えられるが、複
数個の微***を精度良く配置した中子をプラスチ
ツク成形で製作することは、金型構造が極めて複
雑となることから困難とされている。 On the other hand, as a single-core connector for connecting a pair of optical fibers, as shown in Fig.
The strand of optical fiber 03 is inserted into the microhole 05 of the core 06, which has a microhole 05 with approximately the same diameter as the outer diameter of the strand of strand 3 without eccentricity, and is inserted into the sleeve 0.
A method is known in which the optical fibers 03 are connected to each other by inserting them into the optical fibers 7. It is conceivable that this method could be used to connect multi-core optical fiber cables, but manufacturing a core with multiple microholes placed precisely through plastic molding would require an extremely complicated mold structure. It is considered difficult.
本発明は上記現状に鑑みてなされたもので、複
心光フアイバの接続に用いるコネクタの中子を精
度良くしかも経済的に量産できる中子型の製造方
法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 current situation, and it is an object of the present invention to provide a method for manufacturing a core mold that can accurately and economically mass-produce the core of a connector used for connecting multi-core optical fibers.
上記目的を達成する本発明の要旨は、先端に微
〓〓〓〓
***を複数配列して穿設してある型体の前記微小
穴に光フアイバ素線とほぼ同径のピンを差し込
み、この状態でこの型体の表面に導電処理を施し
てマスタ型とし、このマスタ型の回りに電鋳によ
り金属層を形成し、この金属層をマスタ型から分
離して底面から前記ピンが突出する凹状の金型を
得る一方、光フアイバ心線とほぼ同径の棒材を前
記ピンと同じに配列して金型を形成し、この金型
と前記金型とを前記棒材の先端と前記ピンの先端
とが突き合わされるように組合わせて中子型とす
ることを特徴とする。 The gist of the present invention to achieve the above object is to
A pin with approximately the same diameter as the optical fiber wire is inserted into the microscopic hole of the mold body, which has a plurality of small holes arranged in a row, and in this state, conductive treatment is applied to the surface of this mold body to form a master mold. A metal layer is formed around the master mold by electroforming, and this metal layer is separated from the master mold to obtain a concave mold from which the pins protrude from the bottom. are arranged in the same manner as the pins to form a mold, and this mold and the mold are combined so that the tip of the bar and the tip of the pin are butted together to form a core mold. Features.
以下、本発明に係る中子型の製造方法を図面に
示す実施例に基づき詳細に説明する。 EMBODIMENT OF THE INVENTION Hereinafter, the manufacturing method of the core mold based on this invention is demonstrated in detail based on the Example shown in drawing.
第３図Ａ，Ｂには本発明の方法により得られる
中子型によつて製造される中子を示す。第３図Ａ
に示す中子１は、丸形の複心光フアイバケーブル
同士の接続に使用するもので、プラスチツク製の
本体２は円柱状をなし、その中心部及び同一円周
上に微***３及びそれにつながる挿入穴４が配列
穿孔されている。微***３は光フアイバの素線部
分を収める所であり、また挿入穴４は心線部分を
収める所である。第３図Ｂに示す中子５は、光フ
アイバを並列に並べてなるテープ状の光フアイバ
ケーブル同士の接続に使うもので、プラスチツク
製の本体６は偏平形状をなし、微***３及びそれ
につながる挿入穴４が並列に並べて配列穿孔して
ある。 FIGS. 3A and 3B show a core manufactured by a core mold obtained by the method of the present invention. Figure 3A
The core 1 shown in the figure is used to connect round multi-core optical fiber cables, and the plastic main body 2 has a cylindrical shape, and has a micro hole 3 in the center and on the same circumference and connected to it. Insertion holes 4 are arranged and bored. The microhole 3 is a place where a bare wire portion of the optical fiber is housed, and the insertion hole 4 is a place where a core wire portion is housed. The core 5 shown in FIG. 3B is used to connect tape-shaped optical fiber cables made by arranging optical fibers in parallel.The main body 6 made of plastic has a flat shape, and has a microhole 3 and an insertion hole connected to it. Holes 4 are arranged and bored in parallel.
第３図Ｂに示す中子５をプラスチツク成形する
ための中子型（成形金型）を本発明方法により製
造するには次のようにする。 A core mold (molding mold) for plastic molding the core 5 shown in FIG. 3B can be manufactured by the method of the present invention as follows.
先ず、第４図，に示す如く、一端の中央部
に光フアイバ素線と同一径の微***７を偏心する
ことなく設けた円柱体８の精度の揃つたものを複
数個（接続すべき光フアイバの数）用意し、これ
らの円柱体８を互いに密接させて筐体９内に保持
して樹脂（例えばエポキシ樹脂）１０を流し込
み、型体（円柱集合体）１１を形成する。 First, as shown in FIG. 4, a plurality of cylindrical bodies 8 of uniform precision each having a minute hole 7 of the same diameter as the optical fiber wire in the center of one end without eccentricity (the diameter of the cylindrical body 8 to be connected The cylindrical bodies 8 are held in a housing 9 in close contact with each other, and a resin (for example, epoxy resin) 10 is poured thereinto to form a mold body (cylindrical aggregate) 11.
次に、第４図に示す如く、型体１１の各微小
穴７に同径の鋼ピン１２を所定の深さに挿入し、
この状態で金属蒸着を行ない、型体１１の表面全
体に薄い導電層を形成し、これをマスタ型１１ａ
とする。 Next, as shown in FIG. 4, steel pins 12 of the same diameter are inserted into each microhole 7 of the mold body 11 to a predetermined depth.
In this state, metal vapor deposition is performed to form a thin conductive layer on the entire surface of the mold body 11, and this is applied to the master mold 11a.
shall be.
次に、第４図に示すように、マスタ型１１ａ
を電鋳浴（例えば、ニツケル電鋳浴）１３内に浸
漬して電鋳を行ない、マスタ型１１ａの回りに電
鋳層（金属層）１４を生成する。第４図中、１
５はニツケル棒、１６は電源である。 Next, as shown in FIG. 4, the master mold 11a
is immersed in an electroforming bath (for example, a nickel electroforming bath) 13 to perform electroforming, thereby producing an electroformed layer (metal layer) 14 around the master mold 11a. In Figure 4, 1
5 is a nickel rod, and 16 is a power source.
電鋳層１４が所定の厚さに成長したら電鋳を終
了する。この後、マスタ型１１ａから電鋳層１４
を抜き取る。前記ピン１２は電鋳層１４と一体と
なり、微***７から外れる。つまり、第４図に
示す如く、底面からピン１２が突出する凹状の金
型１４ａが得られるのである。この金型１４ａに
おけるピン１２の配列精度は型体１１における微
***７の配列精度と同等である。尚、必要に応
じ、金型１４ａの端面及び側面は切前加工され
る。 When the electroformed layer 14 grows to a predetermined thickness, electroforming is finished. After this, from the master mold 11a to the electroformed layer 14
pull out. The pin 12 is integrated with the electroformed layer 14 and removed from the microhole 7. In other words, as shown in FIG. 4, a concave mold 14a with pins 12 protruding from the bottom surface is obtained. The arrangement precision of the pins 12 in this mold 14a is equivalent to the arrangement precision of the minute holes 7 in the mold body 11. Note that, if necessary, the end face and side face of the mold 14a are cut.
一方、第５図に示すように、光フアイバ心線と
ほぼ同じ径の棒材１７を前記ピン１２と同数用意
し、これらを前記ピン１２と同じ配列で型部材に
植設することによりもう一方の金型１８が得られ
る。 On the other hand, as shown in FIG. 5, by preparing the same number of rods 17 having approximately the same diameter as the optical fiber core wire and implanting them in the mold member in the same arrangement as the pins 12, the other A mold 18 is obtained.
そして、この金型１８と前記金型１４ａとを前
記棒材１７の先端と前記ピン１２の先端とが突き
合わさるように組合わせて中子型（成形金型）１
９とするのである。 Then, this mold 18 and the mold 14a are combined so that the tip of the bar 17 and the tip of the pin 12 are butted together to form a core mold (molding mold).
It is set as 9.
この中子型１９内にプラスチツク成形を行なえ
ば、第３図Ｂに示すような中子５を高精度で製作
することができる。ピン１２の部分が微***３と
なり、棒材１７の部分が挿入穴となるのである。 By performing plastic molding within this core mold 19, a core 5 as shown in FIG. 3B can be manufactured with high precision. The pin 12 portion becomes the microhole 3, and the bar 17 portion becomes the insertion hole.
第６図，，には他の実施例を示す。これ
は、第３図Ａに示す中子１に相当する中子の製作
に使用する中子型を製造するもので、先ず第６図
に示すように、微***７を先端に有す円柱体８
を円筒状の筐体２０内に密接に配置し、筐体２０
内及び円柱体８間に樹脂１０を注入して型体２１
を形成する。尚、この場合側面の１個所若しくは
２個所の樹脂１０を除去して、回転止めとなるキ
ー溝２２を形成するとよい。 FIG. 6 shows another embodiment. This is to manufacture a core mold used for manufacturing a core corresponding to the core 1 shown in FIG. 3A. First, as shown in FIG. 8
are closely arranged in the cylindrical housing 20, and the housing 20
Resin 10 is injected inside and between the cylindrical bodies 8 to form a mold body 21.
form. In this case, it is preferable to remove the resin 10 from one or two places on the side surface to form a keyway 22 that serves as a rotation stopper.
次に、第６図に示す如く、型体２１の微***
７に同径の鋼ピン１２を所定の深さ挿入し、この
状態で導電処理を施し、型体２１の表面に薄い導
電層を形成してマスタ型２１ａとする。 Next, as shown in FIG. 6, a steel pin 12 of the same diameter is inserted into the microhole 7 of the mold body 21 to a predetermined depth, and conductive treatment is performed in this state to form a thin conductive layer on the surface of the mold body 21. A master mold 21a is formed.
この後、先に挙げた実施例と同様に、マスタ型
２１ａの回りに電鋳により金属層を形成し、この
金属層をマスタ型２１ａから分離して底面より前
記ピン１２が突出する金型を得る。この金型と組
合わせられるもう一方の金型は、光フアイバ心線
〓〓〓〓
とほぼ同径の棒材を型部材に前記ピン１２と同数
同様の配列で植設することにより得られる。 Thereafter, in the same way as in the previous embodiment, a metal layer is formed around the master mold 21a by electroforming, and this metal layer is separated from the master mold 21a to form a mold in which the pins 12 protrude from the bottom surface. obtain. The other mold that is combined with this mold is an optical fiber core wire.
This can be obtained by planting rods having approximately the same diameter in the mold member in the same number and arrangement as the pins 12.
第６図には、上記二つの金型よりなる中子型
より得られる中子１による接続構造を示す。中子
１はそのキー溝２２をスリーブ２３内のガイドピ
ン２４に沿わせてスリーブ２３内に挿入される。
図中、２５はスペーサである。 FIG. 6 shows a connection structure using a core 1 obtained from a core mold made of the two molds described above. The core 1 is inserted into the sleeve 23 with its keyway 22 aligned with the guide pin 24 inside the sleeve 23.
In the figure, 25 is a spacer.
尚、第３図Ａに示すような中子１の中子型用の
マスタ型は微***を持たない円柱体によつても形
成できる。これは、第７図に示すように、円柱体
２６を相互に密着させて配列したときにできる円
柱体２６間の略三角形状の隙間２７を利用したも
のであり、この隙間２７が光フアイバ素線とほぼ
同径の鋼ピン１２と精度良く嵌まり合うように円
柱体２６と形成するのである。つまり、ここで
は、略三角形状の隙間２７が微***となるのであ
る。また、マスタ型の他の作製法としては、第８
図に示されるような方法もある。これは、精度の
良い内径を有する金属製リング３０を用意し、こ
のリング３０内に、図示の如く、中心に微***７
を持つ複数の円柱体８を互いに密接させて圧入
し、すき間に接着剤１０を流し込み、この後、リ
ング３０の外周を中の円柱体８が偏心しないよう
に精度良く切削加工し、且つ軸合せ用の溝３１を
付けてマスタ型を形成するものである。 Incidentally, the master mold for the core mold of the core 1 as shown in FIG. 3A can also be formed by a cylindrical body having no microholes. As shown in FIG. 7, this utilizes the substantially triangular gaps 27 between the cylindrical bodies 26 that are created when the cylindrical bodies 26 are arranged in close contact with each other. The cylindrical body 26 is formed so as to fit accurately with the steel pin 12 having approximately the same diameter as the wire. In other words, here, the substantially triangular gap 27 becomes a microhole. In addition, as another method for manufacturing the master mold, the 8th
There is also a method as shown in the figure. This involves preparing a metal ring 30 with a highly accurate inner diameter, and inserting a minute hole 7 in the center of the ring 30 as shown in the figure.
A plurality of cylindrical bodies 8 with cylindrical bodies 8 are pressed into close contact with each other, adhesive 10 is poured into the gaps, and then the outer periphery of the ring 30 is cut with precision so that the cylindrical bodies 8 inside are not eccentric, and the axes are aligned. A master mold is formed by forming a groove 31 for use in the mold.
次に、実際の数値をあげて本発明に係る中子型
の製造方法を示すと共に、得られる中子型により
製造される中子型の性能を示す。 Next, the method for manufacturing the core mold according to the present invention will be described by giving actual numerical values, and the performance of the core mold manufactured by the obtained core mold will be shown.
外径1.5±0.001mm、微***の内径0.126±0.001
mm、偏心0.001mm以下の円柱体を６個相互に密接
して横一列に並べ、エポキシ樹脂を流し込んで、
第４図Ａ，Ｂに示すような型体（偏平円柱集
合体）を形成した。この後、６個の微***にそれ
ぞれ径0.125mmの鋼ピンを約1.2mm挿入し、この状
態で型体の全表面に金を700Å蒸着したマスタ型
とした。このマスタ型をニツケル電鋳浴内に20日
間浸漬して電流密度10mA/cm2、温度35゜に保
ち、厚さ約７mmまでニツケル層を形成した。この
後、マスタ型よりニツケル層を分離し、その周辺
部を整形加工して一方の成形金型を得た。一方、
先に実施例で説明したようにしてもう一方の金型
を作り、これを前記金型と組合わせ中子型とし
た。 Outer diameter 1.5±0.001mm, micro hole inner diameter 0.126±0.001
Six cylindrical bodies with an eccentricity of 0.001 mm or less are arranged in a horizontal row in close contact with each other, and epoxy resin is poured into them.
A mold body (oblate cylindrical aggregate) as shown in FIGS. 4A and 4B was formed. After this, a steel pin with a diameter of 0.125 mm was inserted approximately 1.2 mm into each of the six microholes, and in this state, a master mold was prepared in which 700 Å of gold was deposited on the entire surface of the mold. This master mold was immersed in a nickel electroforming bath for 20 days at a current density of 10 mA/cm 2 and a temperature of 35° to form a nickel layer to a thickness of about 7 mm. Thereafter, the nickel layer was separated from the master mold, and its peripheral portion was shaped to obtain one molding die. on the other hand,
Another mold was made as previously explained in the example, and this was combined with the mold to form a core mold.
この中子型を用いてABS樹脂の射出成形によ
り６心フアイバ用コネクタ中子を成形し、寸法測
定した結果、設定値に対して寸法誤差±0.002mm
以下と良好な結果が得られた。この中子の微***
（第３図Ｂにおける微***３に相当）に外径0.125
mm、コア径0.050mmのグレーデツド形石英フアイ
バの６心テープ状のもののフアイバ素線を挿入
し、エポキシ系接着剤で固定した後、端面を研磨
した一対の中子を、高精度に加工されたレセプタ
クルに挿入し多心コネクタを構成した。接続損失
を波長0.85μｍのLED（発光ダイオード）光源に
より測定した結果、平均0.7dBの値が得られた。
また光フアイバの挿入から中子端面の研磨までに
要した時間は約30分であつた。 Using this core mold, a 6-fiber connector core was molded by injection molding of ABS resin, and the dimensions were measured. As a result, the dimensional error was ±0.002 mm from the set value.
The following good results were obtained. The microhole in this core (corresponding to microhole 3 in Figure 3B) has an outer diameter of 0.125mm.
After inserting a six-core tape-shaped graded quartz fiber with a core diameter of 0.050 mm and fixing it with epoxy adhesive, a pair of cores with polished end faces were processed with high precision. A multi-core connector was constructed by inserting it into a receptacle. As a result of measuring the connection loss using an LED (light emitting diode) light source with a wavelength of 0.85 μm, an average value of 0.7 dB was obtained.
The time required from inserting the optical fiber to polishing the end face of the core was about 30 minutes.
以上説明したように、本発明による複心光コネ
クタの中子型の製造方法によれば、複数のフアイ
バが挿入される微***を持つ中子の成形金型（中
子型）が高精度に製作でき、それによつて精度が
良く低接続損失の複心光コネクタ中子をプラスチ
ツク成形により低価格で量産できる。また、同一
のマスタ型で複数回の電鋳を行なうことができる
ので、精度の揃つた金型を多数用意でき、成形品
の品質を一定に保つことができる。 As explained above, according to the method for manufacturing a core mold for a multi-fiber optical connector according to the present invention, a mold for forming a core (core mold) having micro holes into which a plurality of fibers are inserted can be manufactured with high precision. As a result, high-precision, low-connection-loss multi-core optical connector cores can be mass-produced at low cost by plastic molding. Further, since electroforming can be performed multiple times using the same master mold, a large number of molds with uniform precision can be prepared, and the quality of the molded product can be maintained constant.
第１図Ａ，Ｂは従来の複心光フアイバコネクタ
端末の製造方法を示す平面図及び側面図、第２図
は従来の単心コネクタの断面図、第３図Ａ，Ｂは
本発明に係る方法により得られる中子型により製
作される中子の一部を切欠いた斜視図、第４図
，，，，は本発明による中子型の製造
方法の一実施例の工程説明図、第５図は本発明の
方法により得られる中子型の断面図、第６図，
は他の実施例の工程の一部の説明図、第６図
は得られた中子型により製造された中子によるコ
ネクタ接続を示す横断面図、第７図Ａ，Ｂは更に
他の実施例の説明図、第８図はマスタ型の他の作
製法を示す説明図である。
図面中、１，５は中子、３は微***、４は挿入
穴、７は微***、８は円柱体、１０は樹脂、１１
は型体、１２は鋼ピン、１１ａはマスタ型、１４
は電鋳層、１４ａは金型、１７は棒材、１８は金
型、１９は中子型である。
〓〓〓〓
Figures 1A and B are plan and side views showing a conventional method for manufacturing a multi-fiber optical connector terminal, Figure 2 is a sectional view of a conventional single-fiber connector, and Figures 3A and B are according to the present invention. FIG. 4 is a partially cutaway perspective view of a core manufactured by the core mold obtained by the method, and FIG. The figure is a sectional view of a core mold obtained by the method of the present invention,
is an explanatory diagram of a part of the process of another embodiment, FIG. 6 is a cross-sectional view showing a connector connection using a core manufactured by the obtained core mold, and FIGS. 7A and B are still another embodiment. An explanatory diagram of an example, FIG. 8 is an explanatory diagram showing another method of manufacturing a master mold. In the drawing, 1 and 5 are cores, 3 is a microhole, 4 is an insertion hole, 7 is a microhole, 8 is a cylinder, 10 is resin, 11
is a mold body, 12 is a steel pin, 11a is a master mold, 14
14a is an electroformed layer, 14a is a mold, 17 is a bar, 18 is a mold, and 19 is a core mold. 〓〓〓〓
Claims (1)
体の前記微***に光フアイバ素線とほぼ同径のピ
ンを差し込み、この状態でこの型体の表面に導電
処理を施してマスタ型とし、このマスタ型の回り
に電鋳により金属層を形成し、この金属層をマス
タ型から分離して底面から前記ピンが突出する凹
状の金型を得る一方、光フアイバ心線とほぼ同径
の棒材を前記ピンと同じに配列して金型を形成
し、この金型と前記金型とを前記棒材の先端と前
記ピンの先端とが突き合わさるように組合わせて
中子型とすることを特徴とする複心光コネクタの
中子型の製造方法。1 Insert a pin with approximately the same diameter as the optical fiber wire into the microholes of a mold with a plurality of microholes arranged at its tip, and in this state conductive treatment is applied to the surface of the mold to create a master. A metal layer is formed around this master mold by electroforming, and this metal layer is separated from the master mold to obtain a concave mold with the pins protruding from the bottom. A mold is formed by arranging rods having the same diameter as the pins, and this mold and the mold are combined so that the tips of the rods and the pins butt against each other to form a core mold. A method for manufacturing a core mold for a multi-core optical connector, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8801781A JPS57204015A (en) | 1981-06-10 | 1981-06-10 | Manufacture of core mold of multicore optical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8801781A JPS57204015A (en) | 1981-06-10 | 1981-06-10 | Manufacture of core mold of multicore optical connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57204015A JPS57204015A (en) | 1982-12-14 |
| JPS6135530B2 true JPS6135530B2 (en) | 1986-08-13 |
Family
ID=13931063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8801781A Granted JPS57204015A (en) | 1981-06-10 | 1981-06-10 | Manufacture of core mold of multicore optical connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57204015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02110929U (en) * | 1989-09-30 | 1990-09-05 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61500002U (en) * | 1983-10-27 | 1986-02-06 | ||
| JPS6310111A (en) * | 1986-07-01 | 1988-01-16 | Seiko Giken:Kk | Adhesive agent heater for optical connector |
| JPS6333105U (en) * | 1987-08-05 | 1988-03-03 | ||
| WO2000031574A1 (en) * | 1998-11-26 | 2000-06-02 | Nippon Ferrule Co., Ltd. | Optical fiber connector and ferrule used for it and production method for ferrule |
-
1981
- 1981-06-10 JP JP8801781A patent/JPS57204015A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02110929U (en) * | 1989-09-30 | 1990-09-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57204015A (en) | 1982-12-14 |
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