JPS59229509A - Photoelectric transducer for optical fiber - Google Patents

Photoelectric transducer for optical fiber

Info

Publication number
JPS59229509A
JPS59229509A JP58088044A JP8804483A JPS59229509A JP S59229509 A JPS59229509 A JP S59229509A JP 58088044 A JP58088044 A JP 58088044A JP 8804483 A JP8804483 A JP 8804483A JP S59229509 A JPS59229509 A JP S59229509A
Authority
JP
Japan
Prior art keywords
light
optical fiber
light emitting
focusing member
photoelectric transducer
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
JP58088044A
Other languages
Japanese (ja)
Inventor
Masahiro Muraoka
村岡　正裕
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.)
Rohm Co Ltd
Original Assignee
Rohm Co Ltd
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 Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to JP58088044A priority Critical patent/JPS59229509A/en
Publication of JPS59229509A publication Critical patent/JPS59229509A/en
Pending legal-status Critical Current

Links

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
    • 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
    • G02B6/4206—Optical features

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Light Receiving Elements (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To perform efficiently and surely the transmission and reception of light between an optical fiber and a photoelectric transducer by disposing a condensing member having a convergent tip in the transmission direction of light on the front of a light emitting or photodetecting surface. CONSTITUTION:A condensing member 6 which condenses the light from the light emitting surface 4 of an element 3 emitting light in accordance with the electrical signal from a lead wire 2 and conducts the same to an optical fiber 5 is provided on the front surface of the element 3 in a photoelectric transducer 1 for an optical fiber. The member 6 is formed of a plastic or glass into a convergent circular truncated cone shape in the transmission direction 8' (shown by an arrow) of light. The end face of the member 6 facing the light emitting surface 4 and the end face facing the fiber 5 are preliminarily polished. A reflection mirror 7 is provided around the element to conduct efficiently the light from the surface 4 to the member 6. A focusing member 10 is made convergent toward the surface of a photodetector 13 in the case of condensing the light from an optical fiber 9. The efficient transmission and reception of light are thus made possible.

Description

【発明の詳細な説明】 本発明は、光ファイバを用いて清報を伝達する場合など
に使用され、光信号を電気信号に、若しくは電気信号を
光信号に変換するための光ファイバ用光電変換素子−こ
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is a photoelectric conversion method for optical fibers used for transmitting news using optical fibers, and for converting optical signals into electrical signals or electrical signals into optical signals. Regarding elements.

従来から、発光ダイオードや半導体レーザなどの発光素
子（電気−光変換素子）若しくはフォト・ダイオードな
どの受光素子（光−電気変換素子）と光ファイバとの間
で確実に効率よく光を授受できるようにすることが望ま
れていた。Conventionally, methods have been developed to reliably and efficiently transmit and receive light between light-emitting elements (electro-optical conversion elements) such as light-emitting diodes and semiconductor lasers, or light-receiving elements (optical-electric conversion elements) such as photodiodes, and optical fibers. It was hoped that

本発明の目的は、光ファイバと受光素子や発光素子など
の光電変換素子との間の光の授受を効率よく行なえるよ
うにした光フアイバ用光電変換素子を提供することであ
る。An object of the present invention is to provide a photoelectric conversion element for an optical fiber that can efficiently transmit and receive light between an optical fiber and a photoelectric conversion element such as a light receiving element or a light emitting element.

以下、図面によって本発明の実施例について詳細に説明
する。Embodiments of the present invention will be described in detail below with reference to the drawings.

第１図は本発明の一実施例の光フアイバ用光電変換素子
の断面図である。光ファイバ用光電父換素子１は、基本
的には、リード線２からの電気信号に対応して発光する
発光素子３と、発光素子３の発光面４からの光を焦光し
て光ファイバ５へ導く焦光部材６とを含む。発光素子３
０周囲には反射鏡７が設けられ、発光面４からの光を効
率よく焦光部材６に導く。焦光部材６、発光素子３およ
び反射鏡７は、樹脂モールドされ、ざらに外被１６で覆
われる。発光面４からの光を焦光して光ファイバ５に導
く焦光部材６は、合成樹脂またはガラスから成る先細状
のものでたとえば第２図番こ示されるような円錐台状の
部材である。この焦光部材６は、発光面４の前面に臨ん
で配置され、矢符８で示される光の透過方向に先細状で
ある。焦光部材６の両端面、すなわち発光面４１こ臨む
端面および光ファイバ５に臨む端面は研磨され、効率よ
く光を伝達する。FIG. 1 is a sectional view of a photoelectric conversion element for an optical fiber according to an embodiment of the present invention. The photoelectric conversion element 1 for optical fiber basically includes a light emitting element 3 that emits light in response to an electrical signal from a lead wire 2, and a light emitting element 3 that focuses light from a light emitting surface 4 of the light emitting element 3 to form an optical fiber. 5. Light emitting element 3
A reflecting mirror 7 is provided around 0 to efficiently guide light from the light emitting surface 4 to the focusing member 6. The focusing member 6, the light emitting element 3, and the reflecting mirror 7 are molded with resin and roughly covered with an outer cover 16. A focusing member 6 that focuses the light from the light emitting surface 4 and guides it to the optical fiber 5 is a tapered member made of synthetic resin or glass, and is, for example, a truncated cone-shaped member as shown in the second figure. . The focusing member 6 is disposed facing the front surface of the light emitting surface 4, and has a tapered shape in the light transmission direction indicated by an arrow 8. Both end faces of the focusing member 6, that is, the end face facing the light emitting surface 41 and the end face facing the optical fiber 5, are polished to efficiently transmit light.

このように発光面４からの光を、発光面４の前面に配置
された光の透過方向８に先細状である焦光部材６によっ
て焦光して光ファイバ５に導くので、効率よく確実に発
光面４からの光を光ファイバ５１こ導くことが可能とな
る。In this way, the light from the light emitting surface 4 is focused by the focusing member 6 which is tapered in the light transmission direction 8 disposed in front of the light emitting surface 4 and guided to the optical fiber 5, so that the light is efficiently and reliably guided. It becomes possible to guide the light from the light emitting surface 4 to the optical fiber 51.

第３図は本発明の他の実施例の光フアイバ用光電変換素
子の断面図である。この実施例の光フアイバ用光電変換
素子８は、基本的番こは、光ファイバ９からの光を焦光
する焦光部材１０と、焦光部材１０からの焦光された光
を受光面１１で受光してリード線１２に、対応した電気
信号を与える受光素子１３とを含む。焦光部拐１０、受
光素子１３は樹脂モールドされ、ぜらに外被１７で覆わ
れる。FIG. 3 is a sectional view of a photoelectric conversion element for optical fiber according to another embodiment of the present invention. The optical fiber photoelectric conversion element 8 of this embodiment basically includes a focusing member 10 that focuses the light from the optical fiber 9, and a light receiving surface 11 that directs the focused light from the focusing member 10. and a light-receiving element 13 that receives light and provides a corresponding electrical signal to the lead wire 12. The focusing part 10 and the light receiving element 13 are molded with resin and covered with an outer cover 17.

焦光部材１０は、受光面１１の前面【こ臨んで配置され
、矢符１５で示でれる光の透過方向に先細状である。こ
の焦光部材１０は、前述の焦光部材６と同様に合成樹脂
またはガラスから成り、たとえば円錐台状に形成され、
両端面が研磨される。The focusing member 10 is disposed in front of the light-receiving surface 11 and has a tapered shape in the light transmission direction indicated by an arrow 15. This focusing member 10 is made of synthetic resin or glass like the above-mentioned focusing member 6, and is formed, for example, in the shape of a truncated cone.
Both end faces are polished.

光ファイバ９からの光は、焦光部材１０によって焦光さ
れて受光素子１３の受光面１１に導かれる。The light from the optical fiber 9 is focused by the focusing member 10 and guided to the light receiving surface 11 of the light receiving element 13 .

このように光ファイバ９からの光は、焦光部材１０によ
って焦光されるので、効率よく確実に受光素子１３に光
ファイバ９からの光を導くことが可能となる。さらに光
ファイバ９は、焦光部材１０の大径な端面に臨むように
配置すればよく、受光面１１と光ファイバ９の端面とを
一直線上、すなわち同心に配置する必要がない。これに
よってコネクタなどを用いて多数の光ファイバからの光
を受光面１１に導くことも可能である。Since the light from the optical fiber 9 is thus focused by the focusing member 10, it becomes possible to guide the light from the optical fiber 9 to the light receiving element 13 efficiently and reliably. Furthermore, the optical fiber 9 only needs to be arranged so as to face the large diameter end face of the focusing member 10, and there is no need to arrange the light receiving surface 11 and the end face of the optical fiber 9 in a straight line, that is, concentrically. This makes it possible to guide light from a large number of optical fibers to the light receiving surface 11 using a connector or the like.

以上のように本発明によれば、光フアイバ用光電変換素
子は１発光面若しくは受光面の前面に臨んで配置され光
の透過方向に先細状である焦光部材を有するので、光フ
ァイバと光電変換素子との間の光の授受が効率的に確実
に行なわれることになる。As described above, according to the present invention, a photoelectric conversion element for an optical fiber has a focusing member that is disposed in front of one light emitting surface or one light receiving surface and is tapered in the light transmission direction. Light is efficiently and reliably transmitted to and from the conversion element.

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

第１図は本発明の一実施例の断面図、第２図は第１図の
焦光部材６の斜視図、第３図は本発明の他の実施例の断
面図である。 １．８・・・光フアイバ用光電変換素子、３・・・発光
素子、４・・・発光面、６，１０・・・焦光部材、８，
１５・・・透過方向、１１・・・受光面、１３・・・受
光素子。 出願人　　ローム株式会社 代理人　弁理士岡田和秀FIG. 1 is a sectional view of one embodiment of the present invention, FIG. 2 is a perspective view of the focusing member 6 of FIG. 1, and FIG. 3 is a sectional view of another embodiment of the invention. 1.8... Photoelectric conversion element for optical fiber, 3... Light emitting element, 4... Light emitting surface, 6, 10... Focusing member, 8,
15... Transmission direction, 11... Light receiving surface, 13... Light receiving element. Applicant: ROHM Co., Ltd. Agent: Kazuhide Okada, patent attorney

Claims (1)

【特許請求の範囲】[Claims] （１）発光面若しくは受光面を備える元ファイバ用光電
変換素子において、 前記発光面若しくは受光面の前面に臨んで配置された光
を焦光する焦光部材を有し、前記焦光部材ｔよ、前記光
の透過方向に先細状であることを特徴とする光フアイバ
用光電変換素子。(1) A photoelectric conversion element for a source fiber that includes a light emitting surface or a light receiving surface, which has a focusing member that focuses light that is placed facing the front surface of the light emitting surface or the light receiving surface, and has a focusing member that focuses light from the focusing member t. . A photoelectric conversion element for an optical fiber, characterized in that the element has a tapered shape in the light transmission direction.
JP58088044A 1983-05-18 1983-05-18 Photoelectric transducer for optical fiber Pending JPS59229509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58088044A JPS59229509A (en) 1983-05-18 1983-05-18 Photoelectric transducer for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58088044A JPS59229509A (en) 1983-05-18 1983-05-18 Photoelectric transducer for optical fiber

Publications (1)

Publication Number Publication Date
JPS59229509A true JPS59229509A (en) 1984-12-24

Family

ID=13931824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58088044A Pending JPS59229509A (en) 1983-05-18 1983-05-18 Photoelectric transducer for optical fiber

Country Status (1)

Country Link
JP (1) JPS59229509A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1873566A2 (en) * 2006-06-26 2008-01-02 Osram Sylvania, Inc. Light emitting diode with light guide assembly
WO2011148441A1 (en) * 2010-05-25 2011-12-01 パナソニック株式会社 Method for manufacturing semiconductor device, and semiconductor device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1223532A (en) * 1968-03-07 1971-02-24 Tokyo Optical A wide angle photoelectric detector
JPS51149034A (en) * 1975-06-16 1976-12-21 Nippon Serufuotsuku Kk Propagation mode converting optical coupler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1223532A (en) * 1968-03-07 1971-02-24 Tokyo Optical A wide angle photoelectric detector
JPS51149034A (en) * 1975-06-16 1976-12-21 Nippon Serufuotsuku Kk Propagation mode converting optical coupler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1873566A2 (en) * 2006-06-26 2008-01-02 Osram Sylvania, Inc. Light emitting diode with light guide assembly
EP1873566A3 (en) * 2006-06-26 2009-09-16 Osram Sylvania, Inc. Light emitting diode with light guide assembly
US7795632B2 (en) 2006-06-26 2010-09-14 Osram Sylvania Inc. Light emitting diode with direct view optic
WO2011148441A1 (en) * 2010-05-25 2011-12-01 パナソニック株式会社 Method for manufacturing semiconductor device, and semiconductor device

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