JPH0233113A - Light emission module - Google Patents
Light emission moduleInfo
- Publication number
- JPH0233113A JPH0233113A JP63181731A JP18173188A JPH0233113A JP H0233113 A JPH0233113 A JP H0233113A JP 63181731 A JP63181731 A JP 63181731A JP 18173188 A JP18173188 A JP 18173188A JP H0233113 A JPH0233113 A JP H0233113A
- Authority
- JP
- Japan
- Prior art keywords
- ferrule
- light
- face
- plug
- light emitting
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 239000013307 optical fiber Substances 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Led Device Packages (AREA)
- Semiconductor Lasers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、光通信、光計測などに用いる発光モジュール
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a light emitting module used for optical communication, optical measurement, etc.
（従来の技術）
従来のこの種の発光モジュールについて、レセプタクル
形発光モジュールを例として第３図により説明する。(Prior Art) A conventional light emitting module of this type will be described with reference to FIG. 3, taking a receptacle type light emitting module as an example.
同図において、従来の発光モジュールは、発光素子１を
装着した基台２および上記の発光素子１の出射する光を
集光するレンズ３を同一光軸上に固定する本体４と、上
記の光軸と中心線が一致する有底円筒孔５ａを設けたソ
ケット部５とから構成されている。なお、上記の有底円
筒孔５ａの底面中央に、集光された光を通す貫通小孔５
ｂが穿たれている。In the figure, a conventional light emitting module includes a main body 4 that fixes a base 2 on which a light emitting element 1 is mounted, a lens 3 that collects light emitted from the light emitting element 1 on the same optical axis, and a main body 4 that fixes the light emitted from the light emitting element 1 on the same optical axis. The socket part 5 is provided with a bottomed cylindrical hole 5a whose center line coincides with the axis. In addition, in the center of the bottom surface of the bottomed cylindrical hole 5a, there is a small through hole 5 through which the focused light passes.
B is pierced.
光コネクタのプラグ６は、その先端面中央に。The plug 6 of the optical connector is located in the center of its tip.
光ファイバ７の端面が露呈するように固着されており、
上記の有底円筒孔５ａに僅かな遊びを持って自在に着脱
される。The optical fiber 7 is fixed so that its end face is exposed,
It can be freely attached to and detached from the bottomed cylindrical hole 5a with a slight play.
このように構成された発光モジュールの動作について説
明する。The operation of the light emitting module configured in this way will be explained.
まず、光ファイバ７のプラグ６を、その先端面が発光モ
ジュールの有底円筒孔５ａの底１こ密着するように挿入
する０次に、発光素子１に電気信号を送り発光させると
、発光素子１の出射光はしンズ３で集光され、光ファイ
バ７の端面に入射する。First, the plug 6 of the optical fiber 7 is inserted so that its end surface is in close contact with the bottom of the bottomed cylindrical hole 5a of the light emitting module.Next, when an electric signal is sent to the light emitting element 1 to cause it to emit light, the light emitting element The emitted light from the optical fiber 1 is condensed by the lens 3 and enters the end face of the optical fiber 7.
（発明が解決しようとする課題）
しかしながら、上記の構成では、発光モジュールの有底
円筒孔５ａに光ファイバ７のプラグ６を挿入した場合に
、遊びがあるため光軸のずれが生ずるばかりでなく、有
底円筒孔５ａの底面とプラグ６の端面の密着が維持し難
いため、光出力の損失や変化が大きいという問題があっ
た。(Problem to be Solved by the Invention) However, in the above configuration, when the plug 6 of the optical fiber 7 is inserted into the bottomed cylindrical hole 5a of the light emitting module, there is play, which not only causes a deviation of the optical axis. Since it is difficult to maintain close contact between the bottom surface of the bottomed cylindrical hole 5a and the end surface of the plug 6, there is a problem in that the loss or change in optical output is large.
本発明は上記の問題を解決するもので、光軸がずれず、
接続位置が維持される光出力の安定した発光モジュール
を提供するものである。The present invention solves the above problems, and the optical axis does not shift.
It is an object of the present invention to provide a light emitting module that maintains a connection position and has stable light output.
（課題を解決するための手段）
上記の課題を解決するため１本発明は、中心に光ファイ
バを固着し、且つ両端面を研磨したフェルールを、その
一端面にレンズで集光した発光素子の光が入射するよう
に固定し、他の端部に締代を持って嵌合する割りスリー
ブの後端部を嵌合装着するものである。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a light-emitting element in which an optical fiber is fixed to the center and a ferrule with both end faces polished is condensed by a lens on one end face of the ferrule. The rear end of the split sleeve is fixed so that light can enter therein, and the rear end of the split sleeve is fitted to the other end with an interference fit.
（作 用）
上記の構成により、上記のフェルールの入射端面に露呈
した光ファイバが常に正確にレンズの集光位置にあるば
かりでなく、フェルールと挿入されたプラグとが再現性
よく同軸上に配置されるため、光軸のずれが生ぜず、光
出力の安定した発光モジュールが得られる。(Function) With the above configuration, not only is the optical fiber exposed at the input end face of the ferrule always accurately positioned at the focal point of the lens, but also the ferrule and the inserted plug are coaxially arranged with good reproducibility. Therefore, a light emitting module with stable light output without optical axis deviation can be obtained.
（実施例）
本発明の一実施例を第１図および第２図により説明する
。(Example) An example of the present invention will be described with reference to FIGS. 1 and 2.
第１図は本発明による発光モジュールの断面図で、第３
図に示した従来例と異なる点は、貫通小孔５ｂを有する
有底円筒孔５ａの替りに、中心に光ファイバ８を固着し
、且つ両端を研磨したフェルール９を、その後端面がレ
ンズ３の集光位置に一致するように固定し、さらに、そ
の前端部の外径寸法を光コネクタのプラグ６の外径寸法
と同じにして、これに締代を持って嵌合する割りスリー
ブ１０の外端部を嵌合装着し、さらに、上記の割りスリ
ーブｌＯを隙間を持って収納する収納室５Ｃおよびｌｌ
ａを、ソケット部５とこれに着脱自在のキャップ１１に
設けるものである。その他は変わらないので、従来例と
同じ構成部品には同一符号を付して、その説明を省略す
る。FIG. 1 is a sectional view of the light emitting module according to the present invention, and the third
The difference from the conventional example shown in the figure is that instead of a bottomed cylindrical hole 5a having a small through hole 5b, a ferrule 9 with an optical fiber 8 fixed in the center and polished at both ends is used, the rear end surface of which is similar to the lens 3. The outer diameter of the split sleeve 10 is fixed to match the light condensing position, and the outer diameter of the front end thereof is the same as the outer diameter of the plug 6 of the optical connector, and the outer diameter of the split sleeve 10 is fitted with a tightening margin. Storage chambers 5C and 11 in which the ends are fitted and installed, and the above-mentioned split sleeves 10 are stored with a gap between them.
a is provided on the socket portion 5 and the cap 11 which is detachably attached thereto. Since other aspects remain the same, the same components as in the conventional example are designated by the same reference numerals and their explanations will be omitted.
第２図は上記の割りスリーブ１０の斜視図で１割りスリ
ーブ１０は、上記のフェルール９の外径寸法より僅かに
小さい内径寸法を有する弾性体からなる円筒で、軸方向
に摺割りが入れられたものである。従って、割りスリー
ブ１０の中にフェルール９およびプラグ６を両端から挿
入すると、弾性によって位置決めされるので同軸となり
、再現性よく固定される。FIG. 2 is a perspective view of the split sleeve 10. The split sleeve 10 is a cylinder made of an elastic body and has an inner diameter slightly smaller than the outer diameter of the ferrule 9, and is slotted in the axial direction. It is something that Therefore, when the ferrule 9 and the plug 6 are inserted into the split sleeve 10 from both ends, they are positioned by elasticity, become coaxial, and are fixed with good reproducibility.
このように構成された発光モジュールの動作について説
明する。The operation of the light emitting module configured in this way will be explained.
まず、光コネクタのプラグ６をキャップ１１の先端開口
部から挿入し、割りスリーブ１０に嵌合させながら押し
込み、その先端面をフェルール９の前端面に密着させる
。次に、発光素子１に電気信号を送って発光させると、
その光はレンズ３により集光され、フェルール９の光フ
ァイバ８を通って、これと光軸が一致した光ファイバ７
に伝達される。First, the plug 6 of the optical connector is inserted through the opening at the tip of the cap 11 and pushed in while fitting into the split sleeve 10, so that its tip surface is brought into close contact with the front end surface of the ferrule 9. Next, when an electric signal is sent to the light emitting element 1 to cause it to emit light,
The light is focused by a lens 3, passes through an optical fiber 8 of a ferrule 9, and then connects to an optical fiber 7 whose optical axis coincides with that of the optical fiber 8.
is transmitted to.
フェルール９は、その後端面では光入射面がレンズ３の
集光位置に固定されており、その後端面では軸心が一致
したプラグ６と接続されるので、光出力の変化や損失が
起きない。The light incident surface of the ferrule 9 is fixed at the condensing position of the lens 3 at the rear end surface, and the ferrule 9 is connected to the plug 6 whose axes coincide with each other at the rear end surface, so that no change or loss in optical output occurs.
（発明の効果）
以上説明したように、本発明によれば、フェルールの入
射端面はレンズの集光位置に固定され。(Effects of the Invention) As explained above, according to the present invention, the entrance end face of the ferrule is fixed at the light condensing position of the lens.
且つフェルールに接続され、プラグは割りスリーブの働
きにより再現性よく同一軸線上に装着されるため、光出
力の安定した発光モジュールが得られる。In addition, since the plug is connected to the ferrule and installed on the same axis with good reproducibility due to the action of the split sleeve, a light emitting module with stable light output can be obtained.
【図面の簡単な説明】
第１図は本発明による発光モジュールの断面図、第２図
は割りスリーブの斜視図、第３図は従来の発光モジュー
ルの断面図である。
１・・・発光素子、 ２・・・基台、 ３・・・レンズ
、４・・・本体、 ５・・・ソケット部、 ５ａ・・・
有底円筒孔、５ｂ・・・貫通小孔、 ５ｃ、 ｌｌａ
・・・収納室、 ６・・・プラグ、 ７，８・・・
光ファイバ、 ９・・・フェルール、１０・・・割りス
リーブ。
１１・・・キャップ。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a light emitting module according to the present invention, FIG. 2 is a perspective view of a split sleeve, and FIG. 3 is a sectional view of a conventional light emitting module. DESCRIPTION OF SYMBOLS 1... Light emitting element, 2... Base, 3... Lens, 4... Main body, 5... Socket part, 5a...
Cylindrical hole with bottom, 5b...small through hole, 5c, lla
...Storage room, 6...Plug, 7,8...
Optical fiber, 9...ferrule, 10...split sleeve. 11... Cap.
Claims (1)
クタのプラグを装着するソケット部とからなる発光モジ
ュールにおいて、上記のソケット部を、中心に光ファイ
バを固着し、両端面を研磨仕上げし、その光入射端面を
上記のレンズの集光位置に来るように配置したフェルー
ルと、フェルールの光出射端部に締代を持って後端部を
装着した割りスリーブとから構成し、上記の割りスリー
ブの前端部に光コネクタのプラグを装着するようにした
ことを特徴とする発光モジュール。In a light-emitting module consisting of a light-emitting element, a lens that collects light from the light-emitting element, and a socket part into which an optical connector plug is attached, an optical fiber is fixed to the center of the socket part, and both end surfaces are polished. , consists of a ferrule whose light incident end face is located at the condensing position of the lens, and a split sleeve whose rear end is attached to the light output end of the ferrule with a tightening margin. A light emitting module characterized in that an optical connector plug is attached to the front end of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63181731A JPH0233113A (en) | 1988-07-22 | 1988-07-22 | Light emission module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63181731A JPH0233113A (en) | 1988-07-22 | 1988-07-22 | Light emission module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0233113A true JPH0233113A (en) | 1990-02-02 |
Family
ID=16105901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63181731A Pending JPH0233113A (en) | 1988-07-22 | 1988-07-22 | Light emission module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233113A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002252426A (en) * | 2001-02-26 | 2002-09-06 | Ricoh Co Ltd | Optical communication system using long-waveband surface light-emitting laser device |
| JP2009092938A (en) * | 2007-10-09 | 2009-04-30 | Okano Electric Wire Co Ltd | Optical component with built-in ferrule and receptacle type optical component using the optical component with built-in ferrule |
-
1988
- 1988-07-22 JP JP63181731A patent/JPH0233113A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002252426A (en) * | 2001-02-26 | 2002-09-06 | Ricoh Co Ltd | Optical communication system using long-waveband surface light-emitting laser device |
| JP2009092938A (en) * | 2007-10-09 | 2009-04-30 | Okano Electric Wire Co Ltd | Optical component with built-in ferrule and receptacle type optical component using the optical component with built-in ferrule |
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