JPH01243007A - Optical receptacle - Google Patents
Optical receptacleInfo
- Publication number
- JPH01243007A JPH01243007A JP63068270A JP6827088A JPH01243007A JP H01243007 A JPH01243007 A JP H01243007A JP 63068270 A JP63068270 A JP 63068270A JP 6827088 A JP6827088 A JP 6827088A JP H01243007 A JPH01243007 A JP H01243007A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical hole
- center
- lens
- receptacle
- hollow groove
- 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 title claims abstract description 10
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 239000013307 optical fiber Substances 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000000088 plastic resin Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 241000282341 Mustela putorius furo Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4245—Mounting of the opto-electronic elements
-
- 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
- G02B6/4255—Moulded or casted packages
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はデータ通信における発光素子や受光素子を光フ
ァイバに接続する場合に用いられる元レセプタクルに関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a source receptacle used when connecting a light emitting element or a light receiving element to an optical fiber in data communication.
従来、この種のレセプタクルは第２図に示す通シ、レセ
グタクル１を貫通して９円筒穴２及びこれより径の大き
い穴８を設け、前記穴２にフェルール４を、また穴８に
発光、又は受光素子６と結合部となるレンズ７を挿入し
て使用される。フェルール４には光ファイバが挿入され
ておシ、この光ファイバを通ってきた光は集光レンズ７
を通シ素子６に入射されるように構成されている。Conventionally, this type of receptacle has a through hole shown in FIG. 2, and a receptacle 1 is provided with nine cylindrical holes 2 and a hole 8 with a larger diameter. Alternatively, it is used by inserting a lens 7 that serves as a coupling portion with the light receiving element 6. An optical fiber is inserted into the ferrule 4, and the light passing through this optical fiber is passed through the condenser lens 7.
It is configured such that the light is incident on the through element 6.
この場合、レセプタクル１の円筒穴２にフェル−２４の
円筒軸５を挿入嵌合保持する時、特に円筒穴２と円筒軸
５の嵌合ずれ及び円筒軸５と素子６の軸ずれを最小限に
抑えるため９円筒穴２の寸法は高精度であることを必要
とする。In this case, when inserting and holding the cylindrical shaft 5 of the ferret 24 into the cylindrical hole 2 of the receptacle 1, the misfitting between the cylindrical hole 2 and the cylindrical shaft 5 and the axis misalignment between the cylindrical shaft 5 and the element 6 are minimized. The dimensions of the cylindrical hole 2 need to be highly accurate in order to suppress the 9.
上述したレセプタクルは、構造上円筒穴２の周囲は長手
方向に対し肉厚が一定していないため。In the above-mentioned receptacle, the wall thickness around the cylindrical hole 2 is not constant in the longitudinal direction due to its structure.
プラスチ、り樹脂による射出成形時、肉厚のバラツキに
よる影響を受けてヒケを生ずる。特にａ部は肉厚が大き
く、真円度が出にくいため、素子との重要な位置決めを
必要とするフェルール４の円筒軸５先端部との表金精度
が悪化し、光ファイバと発光素子及び受光素子との結合
損失が大きくなるという問題点があった。When injection molding with plasti or resin, sink marks occur due to variations in wall thickness. In particular, part a has a large wall thickness and is difficult to achieve roundness, which deteriorates the precision of the surface metal between the tip of the cylindrical shaft 5 of the ferrule 4, which requires important positioning with the element, and the optical fiber and the light emitting element. There is a problem in that the coupling loss with the light receiving element increases.
本発明は従来のもののこのような問題点を解決しようと
するもので、前記結合損失を低減した光レセプタクルを
提供するものである。The present invention aims to solve these problems with the conventional optical receptacle, and provides an optical receptacle in which the coupling loss is reduced.
本発明の光レセプタクルは、中心に位置する円筒穴と軸
心が同じで、かつ該円筒穴より径の大きいリング状の凹
溝をレンズとの結合側を開口端として設けたことを特徴
としている。The optical receptacle of the present invention is characterized in that a ring-shaped groove having the same axis as the cylindrical hole located at the center and having a larger diameter than the cylindrical hole is provided with the opening end on the side to be connected to the lens. .
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を示す側断面図である。この
例によれば、ｆラスチック製しセゾタクル１′の中心に
は円筒穴２が設けられておシ、この円筒穴２と軸心が同
じで、かつ円筒穴２より径の大きいリング状の凹溝３が
レンズ７との結合側を開口端として設けられている。FIG. 1 is a side sectional view showing one embodiment of the present invention. According to this example, a cylindrical hole 2 is provided at the center of a sezotacle 1' made of f plastic, and a ring-shaped recess having the same axis as the cylindrical hole 2 and having a larger diameter than the cylindrical hole 2 is provided. The groove 3 is provided with its open end on the side where it is connected to the lens 7.
との凹溝３は特にレセプタクル１′の肉厚の大きいａ部
に対し、必要な深さで設けられている。The concave groove 3 is provided to a necessary depth, particularly in the thick section a of the receptacle 1'.
なお、第１図には示されていないが、穴８側には第２図
の従来例と同じように素子６がレンズ７を介して円筒穴
２に挿入されたフェルール４内の光ファイバと結合して
使用される。Although not shown in FIG. 1, the element 6 is connected to the optical fiber in the ferrule 4 inserted into the cylindrical hole 2 through the lens 7 on the hole 8 side, as in the conventional example shown in FIG. used in combination.
以上説明したように９本発明の光レセプタクルは中心に
位置する円筒穴と軸心を同じとするリング状の凹溝が設
けられているため２円筒上の周辺における肉厚のバラツ
キが最小限となり、プラスチック樹脂成形時の収縮バラ
ンスを保つことが可能になって９寸法上高精度な穴形状
を得ることができ、結果的に光コネクタの光ファイバと
発光素子や受光素子との間の結合損失を低減できる効果
がある。As explained above, since the optical receptacle of the present invention is provided with a ring-shaped groove having the same axis as the cylindrical hole located at the center, the variation in wall thickness at the periphery of the two cylinders is minimized. It is now possible to maintain the shrinkage balance during plastic resin molding, making it possible to obtain a hole shape with high precision in nine dimensions, and as a result, coupling loss between the optical fiber and the light emitting element or light receiving element of the optical connector can be reduced. It has the effect of reducing
第１図は本発明による元レセプタクルの実施例を示す側
断面図、第２図は従来の光レセプタクルを用いた元ファ
イバと光素子との結合構造の一例を示す側断面図である
。FIG. 1 is a side sectional view showing an embodiment of a source receptacle according to the present invention, and FIG. 2 is a side sectional view showing an example of a coupling structure between a source fiber and an optical element using a conventional optical receptacle.
Claims (1)
穴より径の大きいリング状の凹溝をレンズとの結合側を
開口端として設けたことを特徴とする光レセプタクル。1. An optical receptacle characterized in that a ring-shaped concave groove having the same axis as a centrally located cylindrical hole and having a larger diameter than the cylindrical hole is provided with an open end on the side to be connected to a lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63068270A JPH01243007A (en) | 1988-03-24 | 1988-03-24 | Optical receptacle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63068270A JPH01243007A (en) | 1988-03-24 | 1988-03-24 | Optical receptacle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01243007A true JPH01243007A (en) | 1989-09-27 |
Family
ID=13368894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63068270A Pending JPH01243007A (en) | 1988-03-24 | 1988-03-24 | Optical receptacle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01243007A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007183565A (en) * | 2005-12-09 | 2007-07-19 | Enplas Corp | Holder for optical module, the optical module and optical connector |
| JP2020062260A (en) * | 2018-10-18 | 2020-04-23 | 株式会社トキワ | Application container |
-
1988
- 1988-03-24 JP JP63068270A patent/JPH01243007A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007183565A (en) * | 2005-12-09 | 2007-07-19 | Enplas Corp | Holder for optical module, the optical module and optical connector |
| JP2020062260A (en) * | 2018-10-18 | 2020-04-23 | 株式会社トキワ | Application container |
| US10945509B2 (en) | 2018-10-18 | 2021-03-16 | Tokiwa Corporation | Application container |
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