JP2006292924A - Optical adaptor - Google Patents

Optical adaptor Download PDF

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Publication number
JP2006292924A
JP2006292924A JP2005111981A JP2005111981A JP2006292924A JP 2006292924 A JP2006292924 A JP 2006292924A JP 2005111981 A JP2005111981 A JP 2005111981A JP 2005111981 A JP2005111981 A JP 2005111981A JP 2006292924 A JP2006292924 A JP 2006292924A
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optical
receptacle
axis
optical waveguide
adapter
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Hironori Hayata
Kazunori Numata
Tomoaki Ohira
Hiroaki Yamamoto
智亮 大平
浩明 山本
博則 早田
和憲 沼田
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Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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Abstract

PROBLEM TO BE SOLVED: To move two optical connectors in arbitrary angles over a hemisphere without damaging end faces of optical waveguide portions of the both connectors.
SOLUTION: The adaptor comprises: a first receptacle where a first optical connector is inserted; a second receptacle where a second optical connector is inserted; a turning section 1 comprising a movable body placed between the first receptacle and the second receptacle and enabling the first receptacle and the movable body to rotate around an axis A within a ±90° angle range from each other; and a turning section 2 in which the optical axis of a second optical waveguide part and the optical axis of a third optical waveguide part are on the same axis (axis B) and the second optical waveguide part can rotate 360° around the axis B with respect to the third optical waveguide part, wherein the turning section 2 has a mechanism to separate the second optical waveguide part from the third optical waveguide part only upon rotating.
COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、2つの光コネクタを接続する光アダプタに関するものであり、特に、光コネクタ同士の互いになす角度を半球上の任意の角度にして接続する光アダプタに関するものである。 The present invention relates to an optical adapter for connecting two optical connectors, in particular, an angle to each other between the optical connector to an optical adapter to connect to an arbitrary angle on the hemisphere.

従来の光アダプタとしては、2つの光コネクタを対向して接続し、接続角が180°で固定される構成が一般的であった。 Conventional optical adapter to connect to face the two optical connectors, configuration connection angle is fixed at 180 ° were common.

ところが、従来の構成では、その接続角が180°で固定されてしまうため、例えば装置内の側壁に取り付けられた光アダプタに光コネクタを挿入すると、光コネクタは側壁に垂直にはり出してしまうため、装着内の部品配置が制約されるという課題を有していた。 However, in the conventional configuration, when the connection angle for thereby being fixed in 180 °, inserting the optical connector to an optical adapter which is attached to the side wall, for example in the apparatus, because the optical connectors become out beam perpendicular to the side walls , there is a problem that component arrangement in the mounting is limited. この課題に対し、光コネクタから先にある光ファイバを曲げて使用することが考えられる。 For this problem, it is conceivable to use bending an optical fiber from the optical connector to the first.

しかし、光ファイバは石英の母材から作られており、極端に曲げると光伝送損失が増加し、さらには鋭角に曲げると折れてしまうという危険性がある。 However, the optical fiber is made from a base material of quartz, extremely bend the light transmission loss increases, further there is a risk that would break the bend at an acute angle. このことは、装置内外の配線において装置のスペースファクタを著しく低下させる原因となる。 This becomes a cause of significantly reduces the space factor of the apparatus in the wiring of the device and out. 従来の光コネクタは、光ファイバの引き出し部が急な角度で曲がらないように、光ファイバを保護する円錐形状の保護チューブなどを設けていた。 Conventional optical connector, as the lead-out portion of the optical fiber is not bent at a sharp angle, has been provided a protective tube of conical shape for protecting the optical fiber.

上記課題に対し、特許文献1に開示の光アダプタでは、一対の光ファイバが構成する光路上に反射鏡を設け、一対の光ファイバの接続角度に応じて、一対の光ファイバの光軸が反射面内で一致するように反射鏡の角度が変化するように構成されている。 To above problems, the disclosed optical adapter in Patent Document 1, a reflecting mirror provided on an optical path constituting a pair of optical fibers, according to the connection angle of the pair of optical fibers, the optical axes of the pair of optical fibers reflection angle of the reflection mirror is configured so as to change to match in the plane. 上記構成により、光ファイバの接続損失を損なうことなく、一対の光ファイバの接続角度が設定自在となる。 With the above structure, without compromising the connection loss of the optical fiber, the connection angle of the pair of optical fibers is freely set.
特開平7−294766号公報(第1−4頁、図1) JP-7-294766 discloses (1-4 pages, Fig. 1)

しかしながら、前記従来の構成では、光信号を、自由空間、反射鏡により光路を形成しているため、作製時の光軸調整が困難となる。 However, in the conventional configuration, an optical signal, free space, because it forms an optical path by the reflecting mirror, it is difficult to optical axis adjustment at manufacturing. また、遊星歯車を用いているので、回転時に発生するバックラッシュによる光軸ズレが発生し、接続損失が大きくなる可能性があるという課題を有していた。 Further, since a planetary gear, the optical axis deviation is generated by backlash which occurs during rotation, the connection loss has been a problem that there can be large.

本発明は、前記従来の課題を解決するもので、光コネクタと光コネクタとを、光軸調整を必要とせずに、互いになす角度を半球上の任意の角度に接続することを可能とした光アダプタを提供することを目的とする。 The present invention is intended to solve the conventional problems, the light of the optical connector and an optical connector, without requiring optical axis adjustment, and the angle formed with each other make it possible to connect to any angle on the hemisphere an object of the present invention is to provide an adapter.

前記従来の課題を解決するために、本発明の光アダプタは、2つの光コネクタを接続する光アダプタであって、第1の光コネクタを挿入する第1のレセプタクルと、第2の光コネクタを挿入する第2のレセプタクルと、第1のレセプタクルと第2のレセプタクルとの間に設けられた可動体から少なくとも構成され、第1のレセプタクルの一方の端部と可動体の一方の端部が軸Aで互いに結合され、第1のレセプタクルと前記可動体は軸Aを中心にして互いに±90度以内の範囲で回転可能であり(回動部1)、第1のレセプタクルの一方の端部に設けられた第1の光導波部と前記可動体のもう一方の端部に設けられた第2の光導波部は互いに光配線で接続され、第2の光導波部と第2のレセプタクルに挿入される第3の光導波部が接続され、 In order to solve the above conventional problems, the optical adapter of the present invention is an optical adapter for connecting two optical connectors, a first receptacle for inserting the first optical connector, a second optical connector a second receptacle to be inserted, at least composed of a movable member provided between the first receptacle and the second receptacle, one end of the first one end of the receptacle and the movable body is axial are coupled together with a, the movable member and the first receptacle about an axis a rotatable within a range of ± 90 degrees from each other (rotation section 1), the one end portion of the first receptacle the second optical waveguide portion provided at the other end of the first optical waveguide portion and the movable element provided is connected by an optical wired together, inserted into the second optical waveguide portion and the second receptacle third optical waveguide portion connected to be, 2の光導波部の光軸と第3の光導波部の光軸は同一軸上(軸B)にあり、第3の光導波部に対し第2の光導波部は軸Bを中心として360度回転可能とし(回動部2)、回転させる場合にのみ第2の光導波部を第3の光導波部から分離する機構を前記回動部2に備え、一対の光ファイバの接続角度調整を行う。 2 of the optical axis of the optical waveguide is the optical axis of the third optical waveguide located on the same axis (the axis B), 360 second optical waveguide portion relative to the third optical waveguide section around the axis B degree rotatable and to (rotating portion 2), a mechanism for separating the second optical waveguide only when rotating from the third optical waveguide to the rotating unit 2, the connection angle adjustment of the pair of optical fibers I do.

本構成によって、2つの光コネクタを、半球上の任意の角度に動かすことができる。 This structure, two optical connectors can be moved to any angle on the hemisphere.

また、光配線がガラス材料によるシングルモード光ファイバを用いる構成では、シングルモード光ファイバが幹線系からアクセス系まで広く利用され、価格も安く簡単に入手することが可能であるため、低コストかつ容易に光アダプタを作成することが可能となる。 Further, a configuration in which optical wiring is used a single-mode optical fiber by the glass material, single mode optical fibers are widely used from the mains system to access system, because price is cheap can be easily obtained, inexpensive and easily it is possible to create a light adapter to.

また、シングルモード光ファイバを利用した際の光アダプタの大きさをシングルモード光ファイバの曲げ半径が最小曲げ半径以上になるように構成することによって、シングルモード光ファイバ内で生じる損失を最小にすることが可能となる。 Also, by configuring so that the size of the optical adapter when using a single-mode optical fiber bend radius of the single-mode optical fiber becomes less than the minimum bend radius, to minimize the loss occurring in the single-mode optical fiber it becomes possible.

また、光配線にプラスチック材料によるプラスチック光ファイバを利用する構成では、プラスチック光ファイバを利用した機器内光配線や伝送に利用することが可能となる。 Further, in a configuration utilizing a plastic optical fiber according to the plastic material in the optical wiring, it is possible to use the available the optical wiring and transmission equipment plastic optical fiber.

また、プラスチック光ファイバを利用した際の光アダプタの大きさをプラスチック光ファイバの曲げ半径が最小曲げ半径以上になるように構成することによって、プラスチック光ファイバ内で生じる損失を最小にすることが可能となる。 Further, by configuring the size of the optical adapter when using the plastic optical fiber as the bending radius of the plastic optical fiber is equal to or greater than the minimum bend radius, it can minimize the loss produced in the plastic optical fiber to become.

また、光導波部が光素子に備えられた光導波路を用いることによって、光素子からの出力光を任意の角度に取り出す事や、光素子への入力光を任意の角度から入力することが可能となる。 Further, by using the optical waveguide light waveguide unit is provided in the optical device, to take out the output light from the optical element to an arbitrary angle and, can be input to the input light to the optical element from any angle to become.

本発明の光アダプタによれば、2つの光コネクタを、半球上の任意の角度に動かすことができ、かつ、回動部2では、第2のレセプタクルに対し可動体を回転させる際に、両者の光導波部の端面を傷めることを防ぐことができる。 According to the optical adapter of the present invention, two optical connectors, can be moved to any angle on the hemisphere, and the rotating unit 2, when rotating the movable member relative to the second receptacle, both it is possible to prevent the damage to the end face of the optical waveguide.

以下本発明の実施の形態について、図面を参照しながら説明する。 The following embodiments of the present invention will be described with reference to the drawings.

(実施の形態1) (Embodiment 1)
図1は、本発明の実施の形態1における光アダプタの外観図である。 Figure 1 is an external view of an optical adapter in the first embodiment of the present invention.

図1において、光アダプタ1は、レセプタクル2と、回動部3と、可動体4と、回動部5と、レセプタクル6から構成される。 1, the optical adapter 1 includes a receptacle 2, the rotating unit 3, the movable body 4, a rotating unit 5, and a receptacle 6. 光コネクタ7は、光コネクタ8に対して、回動部3の回動機構により図示矢印AおよびBの方向に±90°以内の範囲で回転する。 The optical connector 7, to the optical connector 8, to rotate within a range of ± 90 ° in the direction of arrow A and B by the rotation mechanism of the rotation unit 3. さらに、光コネクタ7は、光コネクタ8に対して、回動部5の回動機構により、光コネクタ8の光軸(図示鎖線CD)を中心に、前記光軸の廻りを図示矢印EおよびFの方向に360°以内の範囲で回転する。 Further, the optical connector 7, to the optical connector 8, by the rotation mechanism of the rotation unit 5, the central optical axis of the optical connector 8 (shown chain line CD), around the arrow E of the optical axis and F It rotates within a range of 360 ° in the direction of. 従って、光コネクタ7は、光コネクタ8に対して、半球上の任意の角度に動かすことができる。 Accordingly, the optical connector 7, to the optical connector 8 can be moved to any angle on the hemisphere.

図2は図1の光アダプタ1の断面図である。 Figure 2 is a sectional view of the optical adapter 1 of Figure 1.

図2において、光アダプタ1は、光配線101と、光導波部102および103と、接続部201と、割りスリーブ202と、レセプタクルボディ203と、可動体4と、回動部ボディ501と、接続部601と、割りスリーブ602で構成される。 2, the optical adapter 1, the optical wiring 101, an optical waveguide portion 102 and 103, a connection portion 201, the split sleeve 202, the receptacle body 203, a movable body 4, a rotating unit body 501, connected and parts 601, and a split sleeve 602. 光配線101の両端は、光導波部102と光導波部103の各々の中心に保持されており、光導波部102と光導波部702を、光導波部103と光導波部802を、それぞれ突き合わせることで、挿入される光コネクタ7と光コネクタ8の間の光路を形成している。 Both ends of the optical wiring 101 is held in the center of each of the light waveguide unit 102 and the light waveguide unit 103, a light waveguide unit 102 and the optical waveguide portion 702, the light waveguide unit 103 and the optical waveguide portion 802, abutting respectively in Rukoto forms an optical path between the optical connector 7 and the optical connector 8 to be inserted.

図3は図1の回動部3の説明図である。 Figure 3 is an explanatory view of the rotation unit 3 of Figure 1.

図3において、回動部3は、レセプタクルボディ203と、可動体4と、結合軸301から構成されている。 3, the rotation unit 3 includes a receptacle body 203, a movable body 4, and a coupling shaft 301. レセプタクルボディ203は、結合軸301の中心(図示軸GH)の廻りを、図示矢印AおよびB方向に、光配線101を極端に曲げることなく可動体4に対して±90°となるように回動する。 The receptacle body 203, around the center of the coupling shaft 301 (shown axis GH), the arrow A and B directions, times so that the ± 90 ° with respect to the movable member 4 without bending the optical wiring 101 extremely to do.

図4、図5は図1の回動部5の回動機構の説明図である。 4, FIG. 5 is an explanatory view of a rotating mechanism of the rotating unit 5 FIG.

図4において、回動部5は、可動体4と、回動部ボディ501と、保持部502および504と、押圧バネ503および505と、接続部601から構成されている。 4, the rotating unit 5, the movable body 4, a rotating unit body 501, a holding portion 502 and 504, a pressing spring 503 and 505, and a connecting portion 601. 可動体4は回動部ボディ501に嵌合されている。 Movable body 4 is fitted to the rotating portion body 501. 光導波部103と光導波部802が突き合わされた状態において、保持部502および504により可動体4を挟み、光導波部103と光導波部802が突き合わされた状態を保持する。 In a state where the optical waveguide 103 and the optical waveguide portion 802 is butted, sandwiching the movable member 4 by the holding portion 502 and 504, to hold the state where the optical waveguide 103 and the optical waveguide portion 802 is butted. 一方、可動体4を回動させるに当たり、可動体4を図示矢印Iの方向へ動かすことで、突起部402が保持体303を押し込む。 On the other hand, the movable member 4 Upon rotating, by moving the movable member 4 in the direction of arrow I, the protrusion 402 pushes the holder 303. その際、押圧バネ303が縮み、可動体4は図5の状態となるまで引き出すことが可能となる。 At that time, shrinkage pressure spring 303, the movable body 4 is made possible to draw up the state of FIG. 図5の状態において、可動体4は、光導波部802の中心に配置された光配線801の光軸(図示軸CD)の廻りを、図示矢印EおよびFの方向へ360°以内の範囲で回転させることが可能となる。 In the state of FIG. 5, the movable member 4, the optical axis of the optical wiring 801 disposed in the center of the optical waveguide portion 802 around the (not-axis CD), within a range of 360 ° in the direction of arrow E and F it is possible to rotate. この構成によれば、光配線101が捻れることなく、かつ光配線101と光配線801との接触面で光配線の先端を傷めることなく可動体4を360°回転させることが可能となる。 According to this arrangement, without optical wiring 101 is twisted, and the movable member 4 without damaging the front end of the optical wiring at the contact surface between the optical wiring 101 and the optical wiring 801 makes it possible to rotate 360 ​​°.

かかる構成によれば回動部3を±90°、回動部5を360°回動可能な構成とすることにより、光フコネクタ8に対して光コネクタ7を半球上の任意の角度に、動かすことが可能となる。 ± 90 ° to the rotation unit 3 According to such a configuration, by the rotating portion 5 and 360 ° rotatable configuration, the optical connector 7 to any angle on the hemisphere to light Fukonekuta 8 moves it becomes possible. また、回動部5では、回動時に突き合わせた光導波部同士を離すため、光配線の先端を傷めることなく、回動が可能となる。 Further, the rotating unit 5, to separate the optical waveguide portions which butt during rotation, without damaging the leading end of the optical wiring, it is possible to rotate. 従って、各部品の光軸合わせ等の調整を必要としない容易な作製プロセスで、光信号の損失なく伝送可能な光アダプタを実現できる。 Accordingly, an easy manufacturing process that does not require adjustment of the optical axis alignment of each component can be achieved without loss transmittable optical adapter of the optical signal.

なお、本実施の形態において、光配線101としては、ガラス材料によるシングルモード光ファイバ、またはプラスチック材料によるプラスチックファイバとしても良い。 In this embodiment, as an optical wiring 101 may be a plastic fiber single-mode optical fiber by the glass material or by a plastic material. また、光コネクタ7および光コネクタ8は光素子に備えられた光導波路としても良い。 Further, the optical connector 7 and the optical connectors 8 may be an optical waveguide provided in the optical device.

また、本実施の形態において、光コネクタ8として、光アダプタ1を設け、互いを光配線101と、光導波部102および103と同等の機能をもつ光配線および光導波部で接続することで、球状の任意の角度に動かすことが可能となる。 Further, in this embodiment, as the optical connector 8, the optical adapter 1 provided with the optical wiring 101 to each other, by connecting the optical wiring and the optical wave portion having the same function as the light waveguide unit 102 and 103, it is possible to move at any angle spherical.

なお、光アダプタの大きさは、光配線に利用する材料によって決定される。 The size of the optical adapter is determined by the material to be used for optical wiring. 例えば、最小曲げ半径が30mmのシングルモード光ファイバを利用した場合、光アダプタ内のシングルモード光ファイバの半径をこれ以上になるように光アダプタの設計を行う必要がある。 For example, if the minimum bend radius of using a single-mode optical fiber of 30 mm, it is necessary to perform a single-mode optical radius more to become like the optical adapter design of the fiber in the optical adapter. また、最小曲げ半径が15mmのプラスチック光ファイバを利用した場合、光アダプタ内のプラスチック光ファイバの半径をこれ以上になるように光アダプタの設計を行う必要がある。 Also, if the minimum bend radius of using plastic optical fiber of 15 mm, it is necessary to perform a radius more to become like the optical adapter design of the plastic optical fiber in the optical adapter.

本発明にかかる光アダプタは、1つのレセプタクルをもう一方のレセプタクルに対し±90°に回動可能な機構と、一方のレセプタクルに装着される光コネクタの光軸を中心として360°回転自在とする機構を有し、一対の光ファイバの接続角度調整を行える光アダプタ等として有用である。 Optical adapter according to the present invention and one receptacle pivotable ± 90 ° relative to the other receptacle mechanisms, a 360 ° rotatable around the optical axis of the optical connector is attached to one of the receptacle a mechanism, it is useful as an optical adapter or the like that allows the connection angle adjustment of the pair of optical fibers.

本発明の実施の形態1における光アダプタの外観図 External view of the optical adapter in the first embodiment of the present invention 図1の光アダプタの断面図 Sectional view of the optical adapter of FIG. 1 図1の光アダプタにおける回動部3の説明図 Illustration of the rotation unit 3 in the optical adapter of FIG. 1 図1の光アダプタにおける回動部5の回動機構の説明図(固定時) Illustration of the rotation mechanism of the rotation unit 5 in the optical adapter of FIG. 1 (at the time fixed) 図1の光アダプタにおける回動部5の回動機構の説明図(回動時) Illustration of the rotation mechanism of the rotation unit 5 in the optical adapter of FIG. 1 (during rotation)

符号の説明 DESCRIPTION OF SYMBOLS

1 光アダプタ 2 レセプタクル 3 回導部 4 可動部 5 回動部 6 レセプタクル 7 光コネクタ 8 光コネクタ 101,801 光配線 102,103,802 光導波部 201 接続部 202,602 割りスリーブ 203 レセプタクルボディ 301 結合軸 402 突起部 501 回動部ボディ 502,504 保持部 503,505 押圧バネ 601 接続部 1 optical adapter 2 receptacle 3 Kaishirube unit 4 movable portion 5 rotating portion 6 receptacle 7 optical connector 8 optical connector 101,801 optical wiring 102,103,802 light waveguide unit 201 connecting portions 202, 602 split sleeve 203 receptacle body 301 coupled shaft 402 protrusion 501 rotating unit body 502 holding portions 503 and 505 presses the spring 601 connecting portion

Claims (6)

  1. 2つの光コネクタを接続する光アダプタであって、 An optical adapter for connecting two optical connectors,
    第1の光コネクタを挿入する第1のレセプタクルと、 A first receptacle for inserting the first optical connector,
    第2の光コネクタを挿入する第2のレセプタクルと、 A second receptacle for inserting the second optical connector,
    前記第1のレセプタクルと前記第2のレセプタクルとの間に設けられた可動体から少なくとも構成され、前記第1のレセプタクルの一方の端部と前記可動体の一方の端部が1つの軸(軸A)で互いに結合され、 The first is at least composed of a movable member provided between the receptacle and the second receptacle, the first one end is one axis at one end and the movable body of the receptacle (the axis are coupled together in A),
    前記第1のレセプタクルと前記可動体は前記軸Aを中心にして互いに±90度以内の範囲で回転可能とする回動部1と、 The movable body and the first receptacle and the rotating part 1, rotatable within a range of ± 90 degrees from each other around the said axis A,
    前記第1のレセプタクルの一方の端部に設けられた第1の光導波部と前記可動体のもう一方の端部に設けられた第2の光導波部は互いに光配線で接続され、 It said second optical waveguide portion provided at the other end of the first optical waveguide portion and the movable body provided in one end portion of the first receptacle is connected by an optical wired together,
    前記第2の光導波部と前記第2のレセプタクルに挿入される第3の光導波部が接続され、 Third optical waveguide portion inserted into the second receptacle and said second optical waveguide are connected,
    前記第2の光導波部の光軸と前記第3の光導波部の光軸は同一軸上(軸B)にあり、前記第3の光導波部に対し前記第2の光導波部は前記軸Bを中心として360度回転可能とする回動部2とを備え、 The optical axis of the second said optical axis of the optical waveguide portion of the third optical waveguide is located on the same axis (the axis B), the third of the second optical waveguide portion with respect to the optical waveguide portion is the and a rotating unit 2 to be rotated 360 degrees about the axis B,
    回転させる場合にのみ前記第2の光導波部を前記第3の光導波部から分離する機構を前記回動部2に備えることを特徴とする光アダプタ。 Optical adapter, characterized in that it only comprises a mechanism for separating the second optical waveguide portion from said third optical waveguide to the rotating unit 2 in the case of rotating.
  2. 前記光配線が、ガラス材料によるシングルモード光ファイバであることを特徴とする、請求項1に記載の光アダプタ。 The optical wiring is characterized in that it is a single-mode optical fiber by the glass material, optical adapter according to claim 1.
  3. 前記光アダプタの大きさは、前記光配線に用いられる前記シングルモード光ファイバの曲げ半径が最小曲げ半径以上になることを特徴とする請求項2記載の光アダプタ。 The size of the light adapter, optical adapter according to claim 2, wherein the bend radius of the single-mode optical fiber used in the optical wiring is equal to or greater than the minimum bend radius.
  4. 前記光配線が、プラスチック材料によるプラスチック光ファイバであることを特徴とする、請求項1に記載の光アダプタ。 The optical wiring is characterized in that it is a plastic optical fiber according to the plastic material, the light adapter according to claim 1.
  5. 前記光アダプタの大きさは、前記光配線に用いられる前記プラスチック光ファイバの曲げ半径が最小曲げ半径以上になることを特徴とする請求項4記載の光アダプタ。 The size of the light adapter, optical adapter according to claim 4, wherein the bend radius of the plastic optical fiber used in the optical wiring is equal to or greater than the minimum bend radius.
  6. 前記第3の光導波部が、光素子に備えられた光導波路であることを特徴とする、請求項1記載の光アダプタ。 It said third optical waveguide section, characterized in that an optical waveguide provided in the optical device, according to claim 1 optical adapter according.
JP2005111981A 2005-04-08 2005-04-08 Optical adaptor Pending JP2006292924A (en)

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