JPS61221632A - Measuring system for eccentricity of single core optical connector ferrule - Google Patents

Measuring system for eccentricity of single core optical connector ferrule

Info

Publication number
JPS61221632A
JPS61221632A JP6206285A JP6206285A JPS61221632A JP S61221632 A JPS61221632 A JP S61221632A JP 6206285 A JP6206285 A JP 6206285A JP 6206285 A JP6206285 A JP 6206285A JP S61221632 A JPS61221632 A JP S61221632A
Authority
JP
Japan
Prior art keywords
ferrule
fiber
eccentricity
insertion hole
optical connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6206285A
Other languages
Japanese (ja)
Inventor
Takehiro Hayashi
武弘 林
Toshiaki Satake
佐武 俊明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Furukawa Electric Co Ltd
Priority to JP6206285A priority Critical patent/JPS61221632A/en
Publication of JPS61221632A publication Critical patent/JPS61221632A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3834Means for centering or aligning the light guide within the ferrule
    • G02B6/3843Means for centering or aligning the light guide within the ferrule with auxiliary facilities for movably aligning or adjusting the fibre within its ferrule, e.g. measuring position or eccentricity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

PURPOSE:To improve measurement precision and to shorten a measurement time by measuring the position of a fiber in a ferrule through a microscope with a TV camera and measuring the eccentricity of the fiber from the relative fine movement and direction of the microscope and the quantity of the ferrule. CONSTITUTION:An eccentricity measuring instrument consists of a clamping jig 14 fixed to a fine moving mount 16, the microscope 22 with the TV camera 20, a digital panel 18, a differential processor 30, a monitor TV 32, etc. Then, the ferrule of an optical connector 10 to be measured is set in the jig 14 and the fiber or fiber insertion hole in the ferrule is positioned in the center of a screen on the basis of the cursor 32a of the TV 32 and then the mount 16 is moved to detect edges in an X and a Y direction. Then, the ferrule is rotated by 180 deg. and edges in the X and Y directions are detected similarly and displayed on the digital panel 18, thereby measuring the quantity of eccentricity on the basis of the X- and Y-directional movement extents (a) and (b).

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、光コネクタのフェルールに対するファイバー
またはファイバー挿入孔の偏心を測定する方式に関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for measuring eccentricity of a fiber or a fiber insertion hole with respect to a ferrule of an optical connector.

(従来技術) 従来、光コネクタのフェルールに対するファイバーまた
はファイバー挿入孔の偏心を測定するためにフェルール
をクランプ治具で固定し。
(Prior art) Conventionally, in order to measure the eccentricity of a fiber or fiber insertion hole with respect to the ferrule of an optical connector, the ferrule is fixed with a clamp jig.

fJIJIl鏡またはこの顕微鏡に取付けられたテレビ
ジ膳ンモニターでファイバーまたはファイバー挿入孔の
エツジを視野にあるカーソルラインで[]視して合せて
いた。しかし、フェルールのエツジがシャープでない場
合にはエツジの判断が困難でその検出精度が低く、且つ
測定に相当の時間を要し作業性が低い欠点があった。
The fiber or the edge of the fiber insertion hole was aligned using a cursor line in the field of view using a mirror or a television monitor attached to this microscope. However, if the edge of the ferrule is not sharp, it is difficult to judge the edge and its detection accuracy is low, and the measurement requires a considerable amount of time and has low workability.

(発明の目的) 本発明の[]的は、フェルールのエツジの検出を高精度
に行なうことができ、また短時間で測定作業をすること
ができる光コネクタフェルール偏心測定方式を提案する
ことにある。
(Objective of the Invention) The object of the present invention is to propose an optical connector ferrule eccentricity measurement method that can detect the edge of a ferrule with high precision and can perform measurement work in a short time. .

(発明の構成) 本発明の光コネクタフェルール偏心測定方式は、光コネ
クタのフェルールの嵌合部外径を基準に取付けられたク
ランプ治具でフェルールをクランプし、フェルールの軸
線に光軸が平行になり且つ対物レンズがフェルールに対
向するようにテレビジ、ンカメラ付の顕微鏡を支持し。
(Structure of the Invention) The optical connector ferrule eccentricity measuring method of the present invention clamps the ferrule with a clamp jig attached based on the outer diameter of the fitting part of the ferrule of the optical connector, so that the optical axis is parallel to the axis of the ferrule. Support the microscope equipped with a television camera so that the objective lens faces the ferrule.

このテレビジョンカメラに映されたフェルールのファイ
バーまたはファイバー挿入孔の画像を微分処理しつつフ
ァイバーまたはファイバー挿入孔の位置を測定し、その
後フェルールを所定角度面記嵌合部の外径の中心を軸線
として回転して再度ファイバーまたはファイバー挿入孔
の位置を測定し、クランプ治具または顧IIIK鏡の相
対微動及びその方向とフェルールの回転着とからフェル
ールに対するファイバーまたはファイバー挿入孔の偏心
を測定することを特徴としている。
The position of the fiber or fiber insertion hole is measured while performing differential processing on the image of the fiber or fiber insertion hole of the ferrule shown on this television camera, and then the ferrule is marked at a predetermined angle and the center of the outer diameter of the fitting part is aligned with the axis. Rotate as described above and measure the position of the fiber or fiber insertion hole again, and measure the eccentricity of the fiber or fiber insertion hole with respect to the ferrule from the relative slight movement of the clamp jig or mirror and its direction and rotation of the ferrule. It is a feature.

この方式によると、フェルールのエツジの検出が容易と
なって測定精度が向上し、また短時間でlll11定作
業をすることができるので作業性が向トする。
According to this method, the edge of the ferrule can be easily detected, improving measurement accuracy, and constant work can be done in a short time, improving work efficiency.

(実施例) 本発明の実施例を図面を参照して詳細に説明すると、第
1図は本発明に係る光コネクタフェルール偏心測定方式
を実施する装置を系統的に示し、光コネクタ10のフェ
ルール12の嵌合部外径を基準に取付けられたクランプ
治具14でフェルール12をクランプする。クランプ治
具14は図示しないCPU制御のロータリエンコーダに
取付けられた微動載物台16に固定されていてクランプ
治具14にクランプされたフェルール12をこのロータ
リエンコーダによってx−Y方向に微動することができ
、またクランプ治J414の軸線を中心に回転すること
ができるようになっている。この微動載物台16はその
X−Y方向の移動量をカウントする光電スケールまたは
マグネットスケールを有し、その出力はデジタルパネル
18に供給されて表示される。尚、符号34,36.3
8はそれぞれ光源、集光レンズ、プリズムを示す。
(Embodiment) An embodiment of the present invention will be described in detail with reference to the drawings. FIG. The ferrule 12 is clamped with a clamp jig 14 attached based on the outer diameter of the fitting part. The clamp jig 14 is fixed to a fine movement stage 16 attached to a CPU-controlled rotary encoder (not shown), and the ferrule 12 clamped on the clamp jig 14 can be finely moved in the x-y directions by this rotary encoder. It is also possible to rotate around the axis of the clamp jig J414. This fine movement stage 16 has a photoelectric scale or a magnetic scale for counting the amount of movement thereof in the X-Y directions, and the output thereof is supplied to the digital panel 18 and displayed. In addition, the code 34, 36.3
8 indicates a light source, a condensing lens, and a prism, respectively.

テレビジ薦ンカメラ20を有する顕微鏡22はフェルー
ル12の軸線12aに光軸22aが平行になり11つ対
物レンズ24がフェルールI2に対向するように図示し
ない固定枠に支持されている。尚、第1図において符号
26は接眼レンズ、また符号28はフオカーシングユニ
ットである。このテレビジ、ンカメラ20によってII
I像された画面は微分処理装置30によって微分処理さ
れてモニター用のテレビジョン32に映される。
A microscope 22 having a television camera 20 is supported by a fixed frame (not shown) so that its optical axis 22a is parallel to the axis 12a of the ferrule 12 and its eleven objective lenses 24 face the ferrule I2. In FIG. 1, reference numeral 26 is an eyepiece lens, and reference numeral 28 is a focusing unit. II by this television camera 20
The I-image screen is subjected to differential processing by a differential processing device 30 and displayed on a monitor television 32.

クランプ治具14に測定すべきフェルール12をセット
し、モニター用のテレビジョン32の画面を見ながらフ
オカーシングユニット28でフェルール12の端面に焦
点を合せる。そして先ずフェルール12内のファイバー
またはそのファイバー挿入孔をテレビジオン32のカー
ソル32aを見窄として画面の略中心に位置させる(第
2図(A)参照)0次いで、ロータリエンコーダによっ
て微動載物台16をX方向に移動し、フィバ−またはフ
ァイバー挿入孔のX方向のエツジを検出する(第2図(
B)参照)、このXフ」向のエツジを検出した時デジタ
ルパネル18の指示はrOJとなる。同様の動作をY方
向についても行なう(第2図(C)参照)その後、ロー
タリーエンコーダによってフェルールl 2ヲ180 
’ 回転シ(wS2図(D) 参照)、前と同様にして
ファイバーまたはファイバー挿入孔のX及びY方向のエ
ツジを検出するが(第2図(E)(F)参照)、その時
のX−Y方向の移動量a、bはデジタルパネル18に表
示される。この移動量は若しフェルールに偏心がなけれ
ば零であるが、少なくともいずれかが零以外であれば、
偏心禁は1/2 a◆bと計算によって求めることがで
きる。尚、この計算はデジタルパネルに接続された図示
しない演算回路で行なうことができ、その結果は適宜の
表示器で表示することができる。
The ferrule 12 to be measured is set on the clamp jig 14, and the end face of the ferrule 12 is focused on with the focusing unit 28 while viewing the screen of the monitor television 32. First, the fiber in the ferrule 12 or its fiber insertion hole is positioned approximately at the center of the screen with the cursor 32a of the television set 32 as the constrictor (see FIG. 2(A)). is moved in the X direction to detect the edge of the fiber or fiber insertion hole in the X direction (see Figure 2).
(See B)), when this edge in the X direction is detected, the instruction on the digital panel 18 becomes rOJ. The same operation is performed in the Y direction (see Fig. 2 (C)).Then, the rotary encoder is used to adjust the ferrule l2 to 180.
' The rotating shaft (see Figure 2 (D)) detects the edges of the fiber or fiber insertion hole in the X and Y directions in the same way as before (see Figure 2 (E) and (F)), but the X- The amounts of movement a and b in the Y direction are displayed on the digital panel 18. This amount of movement is zero if there is no eccentricity in the ferrule, but if at least one of them is other than zero,
Eccentricity can be calculated as 1/2 a◆b. Note that this calculation can be performed by an arithmetic circuit (not shown) connected to the digital panel, and the results can be displayed on a suitable display.

第3図は本発明の方式の他の実施例を示し。FIG. 3 shows another embodiment of the system of the invention.

この実施例ではテレビジョンカメラ20で撮像された画
像を微分処理してモニター用テレビジョン32の画面の
略中央に位置させることは前の実施例と同じであるが、
この状態で画面の画素をスキャンしてファイバーまたは
ファイバー挿入孔を検出する点で異なる。尚1画面の中
央で画像をスキャンした後フェルールを180゜回転す
ること(第3図(B)参照)は前の実施例と同じであり
、このようにして回転前後の画像の位置の差から偏心量
を求めることができる尚、上記2つの実施例ではフェル
ール12を180°回転したが、180’以外の角度で
回転してもよく、そに場合には偏心量の求める式%式% (発明の効果) 本発明によれば、上記のように、ファイバーまたはファ
イバー挿入孔のエツジの検出が容易となって測定精度が
向上し、また作業時間が短縮されるので作業性が向上す
る実益がある。
This embodiment is the same as the previous embodiment in that the image captured by the television camera 20 is subjected to differential processing and positioned approximately at the center of the screen of the monitor television 32.
The difference is that the fiber or fiber insertion hole is detected by scanning the pixels of the screen in this state. Note that rotating the ferrule 180 degrees after scanning the image at the center of one screen (see Figure 3 (B)) is the same as in the previous embodiment, and in this way, the difference in the position of the image before and after rotation can be Although the ferrule 12 was rotated by 180° in the above two embodiments, it may be rotated at an angle other than 180'. In that case, the formula for determining the eccentricity can be used. Effects of the Invention) According to the present invention, as described above, the edges of fibers or fiber insertion holes can be easily detected, improving measurement accuracy, and working time can be shortened, resulting in improved workability. be.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明に係る単心光コネクタフェルール偏心測
定方式に用いられる装置の系統図。 第214(A)乃至(F)は本発明の方式の動作説明図
、第3r司(A)(B)は本発明の他の実施例による方
式の動作説明図である。 10−−−一一光コネクタ、12−−−−−フェルール
、 l 4−−−−−クランプ治具、16−−−−−微
動藏物台、 l 8−−−−−デジタルパネル、 20
−−−−−テレビジョンカメラ、22−−−−一顕微鏡
、30−−−−−微分処理装置、 32−−−−−モニ
ター用テレビジ1ン・ 第 l 図 1M3WJ (A )                    (
B)篤2悶
FIG. 1 is a system diagram of a device used in the single-core optical connector ferrule eccentricity measurement method according to the present invention. 214th (A) to 214th (F) are explanatory diagrams of the operation of the system of the present invention, and 3rd r (A) and (B) are explanatory diagrams of the operation of the system according to another embodiment of the present invention. 10---11 optical connector, 12---ferrule, l 4---clamp jig, 16---fine movement stand, l 8---digital panel, 20
------Television camera, 22-----1 Microscope, 30-----Differential processing device, 32-----Television camera for monitor 1/1 Figure 1M3WJ (A) (
B) Atsushi 2 agony

Claims (1)

【特許請求の範囲】[Claims] 光コネクタのフエルールの嵌合部外径を基準に取付けら
れたクランプ治具で前記フエルールをクランプし、前記
フエルールの軸線に光軸が平行になり且つ対物レンズが
前記フエルールに対向するようにテレビジョンカメラ付
の顕微鏡を支持し、前記テレビジョンカメラに映された
前記フエルールのフアイバーまたはフアイバー挿入孔の
画像を微分処理しつつ前記フアイバーまたはフアイバー
挿入孔の輪郭を測定し、その後前記フエルールを所定角
度前記嵌合部の外径の中心を軸線として回転して再度前
記フアイバーまたはフアイバー挿入孔の位置を測定し、
前記クランプ治具または顕微鏡の相対微動及びその方向
と前記フエルールの回転量とから前記フエルールに対す
る前記フアイバーまたはフアイバー挿入孔の偏心を測定
することを特徴とする単心光コネクタフエルール偏心測
定方式。
Clamp the ferrule with a clamp jig attached based on the outer diameter of the fitting part of the ferrule of the optical connector, and set the television so that the optical axis is parallel to the axis of the ferrule and the objective lens faces the ferrule. A microscope equipped with a camera is supported, and the outline of the fiber or fiber insertion hole is measured while differentially processing the image of the fiber or fiber insertion hole of the ferrule shown on the television camera, and then the ferrule is moved at a predetermined angle. Rotate around the center of the outer diameter of the fitting part as an axis and measure the position of the fiber or fiber insertion hole again,
A single-fiber optical connector ferrule eccentricity measurement method, characterized in that the eccentricity of the fiber or fiber insertion hole with respect to the ferrule is measured from the relative slight movement and direction of the clamp jig or microscope and the amount of rotation of the ferrule.
JP6206285A 1985-03-28 1985-03-28 Measuring system for eccentricity of single core optical connector ferrule Pending JPS61221632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6206285A JPS61221632A (en) 1985-03-28 1985-03-28 Measuring system for eccentricity of single core optical connector ferrule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6206285A JPS61221632A (en) 1985-03-28 1985-03-28 Measuring system for eccentricity of single core optical connector ferrule

Publications (1)

Publication Number Publication Date
JPS61221632A true JPS61221632A (en) 1986-10-02

Family

ID=13189256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6206285A Pending JPS61221632A (en) 1985-03-28 1985-03-28 Measuring system for eccentricity of single core optical connector ferrule

Country Status (1)

Country Link
JP (1) JPS61221632A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01121806A (en) * 1987-11-06 1989-05-15 Sumitomo Electric Ind Ltd Method and instrument for measuring structural parameter of optical connector
US6246921B1 (en) 1997-12-31 2001-06-12 Samsung Electronics Co., Ltd. Concentricity processing apparatus using vision system and method therefor
WO2003060594A1 (en) * 2002-01-17 2003-07-24 Heui-Jae Pahk Machine and method for inspecting ferrule of optical connector
KR100443984B1 (en) * 2002-02-14 2004-08-11 삼성전자주식회사 Apparatus and method for manufacturing collimator
WO2015095169A1 (en) * 2013-12-19 2015-06-25 Corning Optical Communications LLC Ferrule-core concentricity measurement systems and methods
CN105842794A (en) * 2015-01-14 2016-08-10 泰科电子(上海)有限公司 Optical fiber inserting system and method
CN106441166A (en) * 2016-09-28 2017-02-22 南京春辉科技实业有限公司 Optical fiber connector coaxiality detection method and device thereof
CN109946046A (en) * 2017-12-21 2019-06-28 宁波舜宇车载光学技术有限公司 Eccentric testing device and method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01121806A (en) * 1987-11-06 1989-05-15 Sumitomo Electric Ind Ltd Method and instrument for measuring structural parameter of optical connector
US6246921B1 (en) 1997-12-31 2001-06-12 Samsung Electronics Co., Ltd. Concentricity processing apparatus using vision system and method therefor
WO2003060594A1 (en) * 2002-01-17 2003-07-24 Heui-Jae Pahk Machine and method for inspecting ferrule of optical connector
US7113273B2 (en) 2002-01-17 2006-09-26 Heui-Jae Pahk Machine and method for inspecting ferrule of optical connector
CN100389335C (en) * 2002-01-17 2008-05-21 朴喜载 Machine and method for inspecting ferrule of optical connector
KR100443984B1 (en) * 2002-02-14 2004-08-11 삼성전자주식회사 Apparatus and method for manufacturing collimator
WO2015095169A1 (en) * 2013-12-19 2015-06-25 Corning Optical Communications LLC Ferrule-core concentricity measurement systems and methods
US9612177B2 (en) 2013-12-19 2017-04-04 Corning Optical Communications LLC Ferrule-core concentricity measurement systems and methods
US10185096B2 (en) 2013-12-19 2019-01-22 Corning Optical Communications LLC Ferrule-core concentricity measurement systems and methods
CN105842794A (en) * 2015-01-14 2016-08-10 泰科电子(上海)有限公司 Optical fiber inserting system and method
CN106441166A (en) * 2016-09-28 2017-02-22 南京春辉科技实业有限公司 Optical fiber connector coaxiality detection method and device thereof
CN106441166B (en) * 2016-09-28 2020-06-26 南京春辉科技实业有限公司 Method and device for detecting coaxiality of optical fiber connector
CN109946046A (en) * 2017-12-21 2019-06-28 宁波舜宇车载光学技术有限公司 Eccentric testing device and method

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