JP2000221375A - Observation lens mechanism for optical fiber fusion splicing connection - Google Patents

Observation lens mechanism for optical fiber fusion splicing connection

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Publication number
JP2000221375A
JP2000221375A JP1925399A JP1925399A JP2000221375A JP 2000221375 A JP2000221375 A JP 2000221375A JP 1925399 A JP1925399 A JP 1925399A JP 1925399 A JP1925399 A JP 1925399A JP 2000221375 A JP2000221375 A JP 2000221375A
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lens
observation
optical fiber
fusion splicing
mechanism
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JP1925399A
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Japanese (ja)
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Kenji Takahashi
建次 高橋
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Fujikura Ltd
株式会社フジクラ
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Abstract

PROBLEM TO BE SOLVED: To obtain an observation lens mechanism which eliminates the need for focus adjustment in a fusion splicing connecting machine assembling process, produces no polishing waste, and can be assembled in a fusion splicing connecting machine with high precision. SOLUTION: The observation lens mechanism 10 has an opening part 19 for lens insertion in front of a lens barrel 11. A lens group 13, spacer rings 14, a protection glass 16, etc., are inserted into the lens barrel 11 from the front opening part 19 for lens insertion and a screwing member 15 for positioning is screwed in and fixed to a female screw part 11a formed at a front part on the lens barrel internal surface. A screwing member 15 for positioning which has proper thickness H is selected to obtain an observation lens mechanism which can actualize a highly precise focusing. The need for focus adjustment in the fusion splicing connecting machine assembling process is eliminated to reduce manpower. The front end surface of the lens barrel need not be polished and the problem of the production of waste is not generated. The opening part for lens insertion is situated on the front side of the lens barrel, then the assembly is easy.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】この発明は、光ファイバ融着接続の際の融着接続部の観察のために、観察対象物と撮像素子との間に配されて、前記撮像素子上に前記観察対象物の像を結ばせる光ファイバ融着接続用の観察レンズに関する。 BACKGROUND OF THE INVENTION The present invention, for observation of the fusion splicing portion when the optical fiber fusion splicing, disposed between the observed object and the imaging device, the observation on the image sensor regarding observation lens for the optical fiber fusion splicing to bear an image of the object.

【0002】 [0002]

【従来の技術】光ファイバ融着接続機で光ファイバどうしの融着接続を行う場合、対向する光ファイバの端面どうしを高精度に心合わせする必要があり、このため、光ファイバの融着接続部(接続しようとする端面どうしの対向部)を撮像素子で撮像し、画像処理をしてモニタ装置で観察することが行われている。 If BACKGROUND ART performs fusion splicing of each other optical fiber in the optical fiber fusion splicer, it is necessary to centering the end face each other of the opposing optical fibers with high precision, Thus, fusion splicing of optical fibers capturing section (the portion facing each other end face to be connected) by the image pickup device, observing the monitor device by image processing is performed. この融着接続部を観察するための観察レンズ機構として、従来より図2に示す観察レンズ機構20(これを従来例1とする)がある。 As the observation lens mechanism for observing the fusion splice, there is the observation lens mechanism shown than in FIG. 2 prior art 20 (referred to as conventional example 1). この観察レンズ機構20は、レンズ群23を収容した鏡筒21の基部に形成したねじ部が、光ファイバ融着接続機の機枠部25に回転のみ可能に取り付けられたピント調整用ナット24aに螺合して、光軸方向に位置調整可能(ピント調整可能)に取り付けられた構成である。 This observation lens mechanism 20, threaded portion formed in the base of the barrel 21 which accommodates the lens unit 23, the focus adjustment nut 24a mounted for only rotate the machine frame portion 25 of the optical fiber fusion splicer screwed in a mounted configuration to the optical axis direction position adjustable (focus adjustable). なお、24bは固定用ナットである。 It should be noted, 24b is a fixing nut.

【0003】ここで、上記観察レンズ機構20を用いた光ファイバ接続部の観察方法を簡単に説明する。 [0003] Here, brief description will be observed how the optical fiber connecting portion with the viewing lens mechanism 20. LED LED
(発光ダイオード)26からの照射光が光ファイバ28 (Light emitting diode) illumination light from 26 optical fiber 28
の融着接続部を照射し、その反射光が当該観察レンズ機構20を経由してCCD等の撮像素子27に届く。 The fusion splice is irradiated with, it reaches the image pickup device 27 such as a CCD the reflected light via the observation lens mechanism 20. その時、観察対象物である光ファイバ28の融着接続部に観察レンズ機構20の焦点が合わされており、その状況(映像)を撮像素子27からの電気信号として図示しないモニタ装置へ送り、作業者はモニタ装置の映像を見ながら、光ファイバの正しい突き合わせの調整を行う。 Then, the observation object focal point of the fusion spliced ​​portion to the observation lens mechanism 20 of the optical fiber 28 have been combined is, sent to a monitor device not shown the situation (video) as an electric signal from the imaging device 27, the operator while watching the image of the monitor device, make a correct butt adjustment of the optical fiber. 光ファイバ28と撮像素子27との間の距離L0は物像間距離と呼ばれ、機械によってある程度固定の距離である。 The distance L0 between the optical fiber 28 and the image pickup device 27 is called the object-image distance is a distance to some extent fixed by the machine. 一方、観察レンズ機構20の焦点位置は、鏡筒2 On the other hand, the focal position of the observation lens mechanism 20, the lens barrel 2
1、その内部のレンズ群23、隣接するレンズの間隔を定める間隔環29等の複数の部品の精度の積算により、 1, the interior of the lens group 23 that, by integration of a plurality of accuracy of parts such as spacer ring 29 defining a spacing between adjacent lenses,
大きくばらつく。 Large variations. このため、観察レンズ機構20の光ファイバ28または撮像素子27に対する位置を調整するピント調整機構が必要となり、このため、例えば前記のようなピント調整用ナット24aを設け、このピント調整ナット24aを回して、鏡筒21を前後動させて、当該観察レンズ機構20を、光ファイバ28の融着接続部に焦点がくる位置に調整する。 Therefore, focus adjustment mechanism for adjusting the position with respect to the optical fiber 28 or the imaging device 27 of the observation lens arrangement 20 is required, Thus, it provided the focus adjustment nut 24a, such as the, turning the focus adjusting nut 24a Te, the lens barrel 21 by moving back and forth, the observation lens mechanism 20 is adjusted to the fusion splice of the optical fiber 28 comes focal position.

【0004】図3に従来の他の観察レンズ機構30(これを従来例2とする)を示す。 [0004] shows another conventional viewing lens mechanism 3 30 (referred to as conventional example 2). この観察レンズ機構30 This observation lens arrangement 30
は、鏡筒31の後方側(撮像素子側)にレンズ挿入用開口部35を設け、この後方側のレンズ挿入用開口部35 Is the provided lens insertion opening 35 on the rear side (image sensor side) of the lens barrel 31, the lens insertion opening of the rear side 35
から、保護ガラス32、レンズ群33、間隔環34等を挿入し、鏡筒31の内面の後方側に形成しためねじ部3 From the protective glass 32, lens group 33, and insert the spacer ring 34 or the like, a female screw portion 3 formed on the rear side of the inner surface of the barrel 31
1aに図示略のねじ込み部材を螺合させ締め付けて、鏡筒31内の各部品を固定する構成である。 Tighten screwed a not shown threaded member 1a, a structure for fixing the components in the lens barrel 31. そして、光ファイバ融着接続機側に設けた基準面Sに鏡筒31の前端面を当てて、観察レンズ機構30の位置を固定する。 Then, by applying a front end surface of the lens barrel 31 to the reference plane S which is provided in the optical fiber fusion splicer side to fix the position of the observation lens arrangement 30. したがって、鏡筒30の前端部31bの突出長さが観察レンズ機構30のピント調整を決定する。 Therefore, the projecting length of the front end portion 31b of the lens barrel 30 determines the focusing of the observation lens arrangement 30.

【0005】この観察レンズ機構30を光ファイバ融着接続機に組付ける場合、当該観察レンズ機構30を組み立てた後、融着接続機に組付ける前に、当該観察レンズ機構30のピント特性を評価する。 [0005] When assembling this observation lens mechanism 30 to the optical fiber fusion splicer, after assembling the viewing lens mechanism 30, before assembling the fusion splicer, evaluate the focus characteristics of the observation lens arrangement 30 to. すなわち、当該観察レンズ機構30を光ファイバ28と撮像素子27との間の距離を一定(L0を一定)に保つピント評価用治具上に載置し、当該観察レンズ機構30をダイヤル操作で微動させながら、当該観察レンズ機構30が最も合焦点となる位置を前記ダイヤルの読みから検出し(これが観察レンズ機構30のピント特性を評価することになる)、 That is, placed in a constant on the focusing evaluation jig to keep (L0 constant) the distance between the viewing lens mechanism 30 optical fiber 28 and the image pickup device 27, fine movement of the viewing lens mechanism 30 in the dial operation while, (so that it evaluates the focus characteristics of the observation lens arrangement 30) detects a position of the observation lens arrangement 30 is the most focus from readings of the dial,
その読みにしたがって、鏡筒前端部31bの突出長さをいくらにするかを判断する。 In accordance with the reading, determines whether to much the protruding length of the barrel front end portion 31b. そして、当該観察レンズ機構30を一旦分解し、前記判断による鏡筒前端部31b Then, once decomposed the viewing lens mechanism 30, the barrel front end portion 31b by the determination
の突出長さとなるように鏡筒前端面31cを研磨した後、再組立てし、その後融着接続機の組立工程に投入する。 After polishing the barrel front end face 31c so that the projection length of, reassembled, and then put into the assembly process of the fusion splicer.

【0006】 [0006]

【発明が解決しようとする課題】上記従来例1の観察レンズ機構20は、ダブルナット(24a,24b)を用いてピント調整を行う構成であるから、その周辺部に大きなスペースが必要となる。 THE INVENTION Problems to be Solved The conventional example 1 of the observation lens mechanism 20, since it is configured to perform focus adjustment by using a double nut (24a, 24b), a large space in the periphery portion is required. また、この観察レンズ機構20を光ファイバ融着接続機に組付ける組立て工程では、融着接続機上において観察レンズ機構20の焦点位置を高精度で設定するための焦点調整に手間がかかるという問題がある。 Further, in the assembling step of assembling the observation lens mechanism 20 to the optical fiber fusion splicer, a problem that it takes time the focal position of the observation lens arrangement 20 on the fusion splicer to focus adjustment for setting accurately there is.

【0007】上記従来例2によれば、光ファイバ融着接続機への組付け時に焦点調整を行う必要はないので、融着接続機の組立て工程の省力化が図られ、また、占有スペースも少なくて済むという長所がある。 [0007] According to the conventional example 2, it is not necessary to perform focus adjustment during assembly of the optical fiber fusion splicer, labor saving assembly process of the fusion splicer is achieved, also the space occupied there is an advantage in that less need. しかしながら、上記のように鏡筒前端面31cを研磨しなければならないため、この研磨に手間がかかるという問題がある。 However, since it is necessary to polish the barrel front end face 31c as described above, there is a problem that time to the polishing consuming. また、研磨屑が発生するが、これがレンズのゴミとなって、観察レンズ機構30の性能を低下させるおそれがある。 Although the polishing debris generated, which becomes the waste of the lens, which may reduce the performance of the viewing lens mechanism 30. また、融着接続機の観察レンズ機構においては、鏡筒31の前方側(光ファイバ28側)にレンズ群が集中するケースが多いため、後方開口部35からの操作によって当該レンズ群等を組み立てることになって、 In the observation lens arrangement of fusion splicer, for cases where the lens group is concentrated on the front side (the optical fiber 28 side) of the lens barrel 31 is large, assemble the lens or the like by the operation of the rear opening 35 It supposed to be,
組立がしにくくなり、組立精度の低下を来すこともある。 Assembly is less likely to, sometimes causing a reduction in the assembly accuracy.

【0008】本発明は上記従来の欠点を解消するためになされたもので、融着接続機組立工程において焦点調整を行うことが不要であり、また、研磨屑が生じることもなく、かつ、簡単な構造でもって、高精度の光ファイバ融着接続機への組付けを行うことが可能な光ファイバ融着接続用の観察レンズ機構を提供することを目的とする。 [0008] The present invention has been made to solve the above conventional drawbacks, it is unnecessary to be performed focusing in fusion splicer assembly process, also without that the polishing debris generated, and simple with in a structure, and an object thereof is to provide a viewing lens mechanism for assembly capable optical fiber fusion splicing to perform a high-precision optical fiber fusion splicer.

【0009】 [0009]

【課題を解決するための手段】上記課題を解決する本発明は、光ファイバ融着接続の際の融着接続部の観察のために、観察対象物と撮像素子との間に配されて、前記撮像素子上に前記観察対象物の像を結ばせる光ファイバ融着接続用の観察レンズ機構であって、鏡筒の前方側にレンズ挿入用開口部を形成するとともに、この前方側のレンズ挿入用開口部から挿入したレンズ群を、鏡筒内面の前方部に形成しためねじ部に螺合する、所定厚みの位置決め用ねじ込み部材で締め付け固定したことを特徴とする。 A solution for the present invention to solve the above problems, for the observation of the fusion splicing portion when the optical fiber fusion splicing, disposed between the observed object and the imaging device, a viewing lens mechanism for an optical fiber fusion splicing to bear an image of the observation object on the imaging element, to form a lens insertion opening on the front side of the lens barrel, lens insertion of the front side the inserted lens from use opening, is screwed to the female screw portion formed in the front portion of the barrel inner surface, characterized by being clamped in the positioning threaded member having a predetermined thickness.

【0010】請求項2は、請求項1の観察レンズ機構における位置決め用ねじ込み部材として、標準厚みの位置決め用ねじ込み部材、および、それぞれ異なる厚みの複数の個別の位置決め用ねじ込み部材を備えたことを特徴とする請求項1記載の光ファイバ融着接続用の観察レンズ機構。 [0010] Claim 2 is characterized as the positioning threaded member in the observation lens arrangement according to claim 1, the positioning threaded member standard thickness, and in that it comprises a plurality of separate positioning threaded members having different thicknesses to claim 1, wherein the optical fiber observation lens mechanism for fusion splicing.

【0011】 [0011]

【発明の実施の形態】以下、本発明の実施の形態を図1 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, FIG. 1 the embodiment of the present invention
を参照して説明する。 With reference to the description. 図1は本発明の一実施形態の観察レンズ機構10を示すもので、図示の通り、融着接続機上の光ファイバ28と撮像素子27間の所定位置に組付けられる。 Figure 1 shows a viewing lens mechanism 10 of one embodiment of the present invention, as shown, is assembled to a predetermined position between the optical fiber 28 and the image pickup device 27 on the fusion splicer. この観察レンズ機構10は、図示のように、 This observation lens mechanism 10, as shown,
鏡筒11の前方側(観察対象物(光ファイバ28)側) Front side of the lens barrel 11 (observation object (optical fiber 28) side)
にレンズ挿入用開口部19を形成するとともに、その奥部に段差部19aを設けている。 To form a lens insertion opening 19 is provided with a stepped portion 19a at its inner part. そして、前記前方側のレンズ挿入用開口部19からレンズ群13をレンズ間隔を定める間隔環14とともに挿入し、次いで保護ガラス16を挿入するとともに、これら13、14、15を、 Then, the lens unit 13 from the lens insertion opening 19 of the front-side inserted with spacing ring 14 defining a lens interval, and then is inserted the protection glass 16, these 13, 14, 15,
鏡筒11内面の前方部に形成しためねじ部11aに螺合する所定厚み寸法Hの位置決め用ねじ込み部材15で締め付け固定した構成である。 A clamping with the structures in the positioning threaded member 15 having a predetermined thickness H to be screwed into a female screw portion 11a formed in the front portion of the barrel 11 interior surface. そして、前記位置決め用ねじ込み部材として、標準厚みの位置決め用ねじ込み部材、および、それぞれ異なる厚みの複数の個別の位置決め用ねじ込み部材を設けておく。 Then, as the positioning threaded member, the positioning threaded member standard thickness, and, preferably provided a plurality of individual positioning threaded members having different thicknesses.

【0012】次に、前記観察レンズ機構10の組立工程を説明する。 [0012] Next, the assembly process of the observation lens arrangement 10. 所定のレンズ群13、間隔環14を、鏡筒11の前方側のレンズ挿入用開口部19から挿入し、次いで、保護ガラス14を挿入する。 Predetermined lens group 13, the spacer ring 14, inserted from the lens insertion opening 19 of the front side of the lens barrel 11 and then inserts the protective glass 14. 次いで、基準厚みh Then, the standard thickness h
を持つ位置決め用ねじ込み部材15'を鏡筒11のめねじ部11aに螺合させ、締め付けて、これらの部品1 Are screwed positioning threaded member 15 'into the female screw portion 11a of the lens barrel 11 with and tightened, these parts 1
3、14、15を鏡筒11内に固定する。 3,14,15 fixed to the lens barrel 11. このように、 in this way,
観察レンズ機構10を一旦組立てる。 Assemble the observation lens mechanism 10 once.

【0013】次いで、前記の一旦組立てた観察レンズ機構10のピント特性を評価する。 [0013] Then, to evaluate the focus characteristics of the once assembled observation lens arrangement 10 of the. すなわち、前記観察レンズ機構10を、光ファイバ28と撮像素子27との間の距離を一定(L2を一定)に保つピント評価用治具上に載置し、当該観察レンズ機構10をダイヤル操作で微動させながら、当該観察レンズ機構10が最も合焦点となる位置を前記ダイヤルの読みから検出し(これが観察レンズ機構10のピントを評価することになる)、その読みにしたがって、例えば実施形態では保護ガラス16 In other words, the observation lens mechanism 10, placed on a focus evaluation jig to keep (constant L2) constant distance between the optical fiber 28 and the image pickup device 27, the observation lens mechanism 10 in the dial operation while the fine movement, (so that it evaluates the focus of the observation lens arrangement 10) detects the position of the observation lens arrangement 10 is the most focus from readings of the dial, in accordance with the read, protected by e.g. embodiment glass 16
の位置から融着接続機側の基準面Sまでの距離Hを決定する。 Determining the distance H from the position to the reference surface S of the fusion splicer side. そして、前記の基準厚みの位置決め用ねじ込み部材15'を取り外し、前記寸法Hの厚みを持つ位置決め用ねじ込み部材15と交換する。 Then, remove the positioning threaded member 15 'of the reference thickness is replaced with the positioning threaded member 15 having a thickness of the dimension H.

【0014】その後、前記観察レンズ機構10は融着接続機組立工程に投入されるが、この融着接続機組立工程では、観察レンズ機構10の鏡筒11に取り付けた位置決め用ねじ込み部材15の前端面を融着接続機側の基準面Sに当てるだけで、観察レンズ機構10はその焦点が精度よく融着接続部(光ファイバ28)に合った状態となる。 [0014] Then, the observation lens mechanism 10 but is placed in a fusion splicer assembly process, in this fusion splicer assembly process, the front end of the positioning threaded member 15 attached to the lens barrel 11 of the observation lens arrangement 10 just shed surface on the reference plane S of the fusion splicer side, viewing lens mechanism 10 is its focal point in a state that suits accurately fusion splice (optical fiber 28). このように、融着接続機組立工程での焦点調整は不要であり、融着接続機組立工程での作業は省力化される。 Thus, focusing on the fusion splicer assembly process is unnecessary, working in the fusion splicer assembly process is labor saving. また、鏡筒11の前端面の研磨は不要なので、研磨屑がレンズにゴミとなって付着して、性能が低下する問題は生じない。 Further, since unnecessary grinding of the front end surface of the lens barrel 11, the polishing debris adheres becomes garbage lens, there is no problem that performance is lowered. さらに、融着接続機の場合は、鏡筒11 Furthermore, in the case of fusion splicing machine, barrel 11
の前方側(光ファイバ28側)にレンズ群が集中するケースが多いのに対して、鏡筒11の前方側にレンズ挿入用開口部15があるので、組立がし易く、能率的であるとともに、組立精度の低下を来す恐れは少ない。 Whereas the front case lens group (optical fiber 28 side) are concentrated many of the, there is a lens insertion opening 15 on the front side of the lens barrel 11, easy to assembly, as well as a streamlined fear seldom cause a decrease in assembly accuracy.

【0015】なお、本発明におけるレンズ群や間隔環や保護ガラスの配列は、特に実施形態のものに限定されず、任意である。 [0015] The arrangement of the lens groups and a spacer ring and the protective glass of the present invention is not particularly limited to those embodiments, is optional. また、位置決め用ねじ込み部材の厚み寸法は、通常の場合、保護ガラス16の前面からの寸法として設定するが、鏡筒11内の各部品を締め付け固定できれば、必ずしもこれに限定されない。 Further, the thickness of the positioning threaded member, usually, but set as the dimension from the front of the protective glass 16, if fasten the components in the lens barrel 11 may not be limited thereto. さらに、観察レンズ機構10において、レンズ等の部品が鏡筒11の前方側に集中しているのに対して、鏡筒11の前方側にレンズ挿入用開口部19があるので、観察レンズ機構の組立が容易であり、能率的であるとともに、組立精度の低下を来す恐れも少ない。 Further, the observation lens arrangement 10, whereas the components such as lenses is concentrated on the front side of the lens barrel 11, since there is a lens insertion opening 19 on the front side of the lens barrel 11, the observation lens arrangement assembly is easy, with a efficient, even less possibility of causing a decrease in assembly accuracy.

【0016】 [0016]

【発明の効果】本発明の光ファイバ融着接続用の観察レンズ機構によれば、鏡筒の前方側にレンズ挿入用開口部を形成するとともに、この前方側のレンズ挿入用開口部から挿入したレンズ群を、鏡筒内面の前方部に形成しためねじ部に螺合する、所定厚みの位置決め用ねじ込み部材で締め付け固定した構成であるから、融着接続機組立工程における焦点調整は不要となり、省力化が図られる。 According to the observation lens arrangement for optical fiber fusion splicing the present invention, to form a lens insertion opening on the front side of the barrel, inserted from the lens insertion opening of the front side the lens group, screwed into a female screw portion formed in the front portion of the barrel inner surface, since it is clamped with the structures in the positioning threaded member having a predetermined thickness, the focus adjustment in the fusion splicer assembly process is unnecessary, labor-saving can be achieved. また、鏡筒の前端面の研磨は不要なので、研磨屑がレンズにゴミとなって付着して、性能が低下する問題は生じない。 Further, since unnecessary grinding of the front end surface of the lens barrel, and polishing waste adheres becomes garbage lens, there is no problem that performance is lowered. さらに、鏡筒の前方側にレンズ挿入用開口部があるので、観察レンズ機構の組立が容易であり、能率的であるとともに、組立精度の低下を来す恐れも少ない。 Furthermore, since there is a lens insertion opening on the front side of the lens barrel, it is easy to assemble the viewing lens mechanism, as well as a streamlined, even less possibility of causing a decrease in assembly accuracy.

【0017】請求項2によれば、位置決め用ねじ込み部材として、標準厚みの位置決め用ねじ込み部材、および、それぞれ異なる厚みの複数の個別の位置決め用ねじ込み部材を備えているので、観察レンズ機構の焦点を所定のものにする設定作業が容易かつ能率的になる。 According to claim 2, as a positioning threaded member, the positioning threaded member standard thickness, and is provided with the plurality of individual positioning threaded members having different thicknesses, the focal point of the observation lens arrangement setting work of a given thing is easily and efficiently.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の一実施形態の光ファイバ融着接続用の観察レンズ機構の断面図である。 1 is a cross-sectional view of the observation lens arrangement for optical fiber fusion splicing of one embodiment of the present invention.

【図2】従来の観察レンズ機構を説明する図である。 2 is a diagram for explaining a conventional observation lens arrangement.

【図3】他の従来の観察レンズ機構の断面図である。 3 is a cross-sectional view of another conventional viewing lens mechanism.

【符号の説明】 DESCRIPTION OF SYMBOLS

10 観察レンズ機構 11 鏡筒 12 保護ガラス 13 レンズ群 14 間隔環 15 位置決め用ねじ込み部材 15a めねじ部 15' 基準位置決め用ねじ込み部材 28 光ファイバ(観察対象物) 26 LED 27 撮像素子 10 observation lens mechanism 11 barrel 12 Protection glass 13 lens group 14 spacer ring 15 for positioning screw-member 15a internally threaded portion 15 'reference positioning threaded member 28 optical fiber (observation object) 26 LED 27 imaging element

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 光ファイバ融着接続の際の融着接続部の観察のために、観察対象物と撮像素子との間に配されて、前記撮像素子上に前記観察対象物の像を結ばせる光ファイバ融着接続用の観察レンズ機構であって、 鏡筒の前方側にレンズ挿入用開口部を形成するとともに、この前方側のレンズ挿入用開口部から挿入したレンズ群を、鏡筒内面の前方部に形成しためねじ部に螺合する、所定厚みの位置決め用ねじ込み部材で締め付け固定したことを特徴とする光ファイバ融着接続用の観察レンズ機構。 For 1. A fusion splice portion when the optical fiber fusion splicing observed, disposed between the observed object and the imaging device, tied an image of the observation object on the imaging device a viewing lens mechanism for an optical fiber fusion splicing to, to form a lens insertion opening on the front side of the barrel, the inserted lens from the lens insertion opening of the front side, the barrel inner surface of screwed into the female screw portion formed in the front portion, the observation lens arrangement for an optical fiber fusion splicing, characterized in that the clamped in the positioning threaded member having a predetermined thickness.
  2. 【請求項2】 前記位置決め用ねじ込み部材として、標準厚みの位置決め用ねじ込み部材、および、それぞれ異なる厚みの複数の個別の位置決め用ねじ込み部材を備えたことを特徴とする請求項1記載の光ファイバ融着接続用の観察レンズ機構。 As claimed in claim 2 wherein said positioning threaded member, the positioning threaded member standard thickness, and the optical fiber fusion according to claim 1, further comprising a plurality of separate positioning threaded members having different thicknesses observation lens mechanism for wearing connection.
JP1925399A 1999-01-28 1999-01-28 Observation lens mechanism for optical fiber fusion splicing connection Pending JP2000221375A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010140030A (en) * 2008-12-12 2010-06-24 Samsung Mobile Display Co Ltd Laser system
KR101448088B1 (en) * 2012-07-06 2014-10-07 가부시키가이샤후지쿠라 Fusion splicing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010140030A (en) * 2008-12-12 2010-06-24 Samsung Mobile Display Co Ltd Laser system
US8295662B2 (en) 2008-12-12 2012-10-23 Samsung Mobile Display Co., Ltd. Laser system
KR101448088B1 (en) * 2012-07-06 2014-10-07 가부시키가이샤후지쿠라 Fusion splicing apparatus

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