JPS61288529A - Optical parallel communication system - Google Patents

Optical parallel communication system

Info

Publication number
JPS61288529A
JPS61288529A JP60130318A JP13031885A JPS61288529A JP S61288529 A JPS61288529 A JP S61288529A JP 60130318 A JP60130318 A JP 60130318A JP 13031885 A JP13031885 A JP 13031885A JP S61288529 A JPS61288529 A JP S61288529A
Authority
JP
Japan
Prior art keywords
light
light emitting
stb
element array
emitting element
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
JP60130318A
Other languages
Japanese (ja)
Inventor
Narimitsu Fujiwara
藤原　齋光
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP60130318A priority Critical patent/JPS61288529A/en
Priority to DE19863619559 priority patent/DE3619559A1/en
Publication of JPS61288529A publication Critical patent/JPS61288529A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
    • 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
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images

Abstract

PURPOSE:To decrease the distance between adjacent elements and to eliminate the need for a shield film by arranging a lens collecting an emitted light of a prescribed light emitting element of a light emitting element array to a prescribed photodetecting element of a photodetector array between the light emitting element array and the photodetecting element array, allowing the photodetecting element to receive the emitted light of the light emitting element so as to apply parallel communication of information. CONSTITUTION:In response to a data given from sender side signal lines D0-D7, STB,LED drivers 6a-6i drive light emitting diodes 2a-2i, and an emitted light of the light emitting diode is collected to a photodiode in the optical coupling relation of photo diodes 4a-4i and the emitted light emitting diode in the light emitting diodes 2a4n2i by a lens 5. Photoelectric conversion is applied by the collected photodiode, the output of the photodiodes 4a-4i is amplified by amplifiers 7a-7i and outputted to reception side signal lines STB',D7'-D0' and data communication is attained between the the sender signal lines D0-D7, STB and the reception side signal lines D0'-D7',STB'.

Description

【発明の詳細な説明】 く技術分野〉 本発明は発光素子と受光素子の間で光による情報の通信
を行なう光並列通信方式に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an optical parallel communication system for communicating information using light between a light emitting element and a light receiving element.

〈従来技術〉 従来、光結合による通信方式は、非接触通信として広く
利用され、特に近距離（近接）の密着型非接触光通信方
式は、電気的絶縁性を有することから静電気等の影響を
受けないすぐれた情報通信方式である。この密着型非接
触光通信方式は、第４図に示すように、１個の発光素子
４１と１個の受光素子４２を互いに対向するように配置
し、送信側の発光素子４１の発光を受信側の受光素子４
２が受け、受光素子４２で充電変換することにより、情
報の通信が行なわれる。<Prior art> Conventionally, communication systems based on optical coupling have been widely used for non-contact communication, and in particular, short-distance (proximity) close-contact non-contact optical communication systems have electrical insulation properties, so they are less susceptible to the effects of static electricity, etc. It is an excellent information communication method that does not receive much attention. In this contactless optical communication system, as shown in FIG. 4, one light-emitting element 41 and one light-receiving element 42 are arranged to face each other, and the light emitted from the light-emitting element 41 on the transmitting side is received. Side light receiving element 4
2 receives the information, and the light receiving element 42 charges and converts the information, thereby performing information communication.

１対の発光素子４１と受光素子４２に対して通信線は１
本であるので、第５図に示すように、送信側のＣＰＵ５
１と受信側のＣＰＵ５２が８ビツトのデータを取り扱う
場合に１対の素子４１．４２で通信を行なうには、８ビ
ット−１ビツトのパラレル・シリアル変換回路５３と１
ビット−８ビツトのシリアル・パラレル変換回路５４が
必要になり、ハードウェアが複雑化する。There is one communication line for one pair of light emitting element 41 and light receiving element 42.
Since it is a book, as shown in FIG.
When the CPU 52 on the receiving side handles 8-bit data, the 8-bit to 1-bit parallel/serial conversion circuit 53 and the 1-bit parallel/serial converter circuit 53 and 1
A bit-8 bit serial/parallel conversion circuit 54 is required, which complicates the hardware.

また、複数ビットのデータを並列に転送する場合には、
第６図に示すように、複数対の発光素子６１と受光素子
６２を並置するとともに、受光素子の発光が対関係にあ
る受光素子以外の受光素子に入射すると正確なデータ転
送ができないため、遮蔽１１１６３を設けるかあるいは
第７図に示すように素子間の距離を大きくする等の工夫
が必要であり、装置が大型化し、設計上の制約を生じる
原因になっている。Also, when transferring multiple bits of data in parallel,
As shown in FIG. 6, multiple pairs of light-emitting elements 61 and light-receiving elements 62 are arranged side by side, and if the light emitted from the light-receiving elements enters a light-receiving element other than the paired light-receiving elements, accurate data transfer cannot be achieved. 11163 or increasing the distance between the elements as shown in FIG. 7, this increases the size of the device and causes design constraints.

〈発明の目的〉 本発明は上記事情に鑑みてなされたものであり、その目
的は、隣接する素子間の距離を小さくシシかも遮蔽膜を
不要とした光並列通信方式を提供することである。<Objective of the Invention> The present invention has been made in view of the above circumstances, and its object is to provide an optical parallel communication system that reduces the distance between adjacent elements and eliminates the need for a shielding film.

〈発明の構成〉 本発明による光並列通信方式は、通電により発光する発
光素子を複数個列状に配置した発光素子アレイと上記発
光素子の出射光を受けて電気信号に変換する受光素子を
複数個列状に配置した受光素子アレイとの間に上記発光
素子アレイの所定の発光素子の出射光を上記受光素子ア
レイの所定の受光素子に集光させるレンズを配置し、上
記複数の発光素子の出射光を上記複数の受光素子が受光
して情報の並列通信を行なうことを特徴とする。<Configuration of the Invention> The optical parallel communication system according to the present invention includes a light emitting element array in which a plurality of light emitting elements that emit light when energized are arranged in a row, and a plurality of light receiving elements that receive light emitted from the light emitting elements and convert it into an electrical signal. A lens is disposed between the light-receiving element array arranged in rows to focus the emitted light from a predetermined light-emitting element of the light-emitting element array onto a predetermined light-receiving element of the light-receiving element array. It is characterized in that the plurality of light receiving elements receive the emitted light and perform parallel communication of information.

〈実施例〉 以下、本発明の一実施例について説明する。<Example> An embodiment of the present invention will be described below.

第１図に示すように、送信側１の発光素子アレイ２と受
信側３の受光素子アレイ４の間にレンズ５を配置して、
発光素子アレイ２を構成する発光ダイオード２ａ１２ｂ
ｌ−・＋２ｉからの出射光をレンズ５により受光素子ア
レイ４を構成するホトダイオード４　ａ　、　　４　ｂ
　＋−・、４ｉ上に集光させることにより、データの並
列通信を行なう。発光ダイオード２　ａ、　　２ｂ、−
、’ｌ　ｉが互イニ隣接シテ列状に配置された発光素子
アレイ２とホトダイオード４　ａ＋　　４　ｂ＋　’−
’ｒ　　４　ｔが互いに隣接して列状に配置された受光
素子アレイ４とは、互いに平行して配置される。As shown in FIG. 1, a lens 5 is arranged between the light emitting element array 2 on the transmitting side 1 and the light receiving element array 4 on the receiving side 3.
Light emitting diodes 2a12b forming the light emitting element array 2
The light emitted from l- and +2i is passed through a lens 5 to photodiodes 4a and 4b that constitute a light receiving element array 4.
By focusing the light on +-., 4i, parallel data communication is performed. Light emitting diodes 2a, 2b, -
, 'l i are arranged in adjacent rows of light emitting element array 2 and photodiodes 4 a+ 4 b+ '-
The light-receiving element arrays 4 in which 'r 4 t' are arranged in a row adjacent to each other are arranged in parallel to each other.

レンズの結像光学系では、第２図に示すように、焦点距
離がｆであるレンズからの距離ａの位置の像Ａがレンズ
から距離すの位置に像Ｂを結ぶときには、 ａ　　　　　ｂ　　　　　ｆ の関係があり、倍率Ｍは、 Ｍ！＋　□ である、モしてａ＝２ｆとするとｂ　＝　２　ｆ−とな
り、倍率Ｍは１である。In the imaging optical system of a lens, as shown in Fig. 2, when an image A at a distance a from the lens whose focal length is f forms an image B at a distance from the lens, a b f There is a relationship, and the magnification M is M! +□.If a=2f, then b=2f-, and the magnification M is 1.

第１図において、倍率Ｍが１の結像がなされるように発
光素子アレイ２．レンズ５及び受光素子アレイ４を配置
すると、発光ダイオード２ａからの出射光はホトダイオ
ード４１上に集光し、発光ダイオード２ｂからの出射光
はホトダイオード４ｈ上に集光し、−・・、発光ダイオ
ード２１の出射光はホトダイオード４ａ上に集光する。In FIG. 1, the light emitting element array 2. When the lens 5 and the light receiving element array 4 are arranged, the light emitted from the light emitting diode 2a is focused on the photodiode 41, the light emitted from the light emitting diode 2b is focused on the photodiode 4h, and..., the light emitting diode 21 The emitted light is focused on the photodiode 4a.

すなわち、発光ダイオード２ａ−ホトダイオード４１１
発光ダイオード２ｂ→ホトダイオード４ｈ、−・９発光
ダイオード２ｈ−ホトダイオード４ｂ、発光ダイオード
２１−ホトダイオード４ａの光結合関係が成立する。That is, light emitting diode 2a-photodiode 411
Optical coupling relationships are established: light-emitting diode 2b→photodiode 4h, -9 light-emitting diode 2h-photodiode 4b, and light-emitting diode 21-photodiode 4a.

発光ダイオード２　ａ、　　２　ｂ＋　’−’＋　　２
　ｔにはＬＥＤドライバ５ａ、６ｂ＋・−・＋６１をそ
れぞれ介して送信側信号ラインＤＯ，ＤＩ、・−・、Ｄ
７．ＳＴＢがそれぞれ接続され、ホトダイオード４　ａ
、　　４　ｂ＋・−、４ｔにはアンプ７　ａ、　　７　
ｂ、　・−、７ｉをそれぞれ介して受信側信号ラインＳ
ＴＢ’、Ｄ？’。Light emitting diode 2 a, 2 b+ '-'+ 2
t, transmitting side signal lines DO, DI, . . . , D via LED drivers 5a, 6b+, .
7. The STBs are connected to each other, and the photodiode 4a
, 4 b+・-, 4t has amplifier 7 a, 7
b, ·-, 7i respectively to the receiving side signal line S
TB', D? '.

Ｄ６’、’−−−・、Ｄθ′がそれぞれ接続される。そ
して、送信側信号ラインＤＯ，ＤＩ、・−・、Ｄ？、Ｓ
ＴＢから与えられたデータに応じてＬＥＤドライバ５ａ
。D6', '----., and Dθ' are connected, respectively. And the transmitting side signal lines DO, DI, ..., D? , S
LED driver 5a according to data given from TB
.

６　ｂ　＊　’−−−’＋　　６１により発光ダイオー
ド２　ａ、　　２　ｂ。6 b * '----' + 61 causes light emitting diodes 2 a, 2 b.

’−−−’＋　　２　ｓが駆動され、発光ダイオード２
ａ＋２ｂ＋・・・−・＋２ｔのうちの発光した発光ダイ
オードとホトダイオード４　”＋　　４　ｂ＋　・−・
、４１のうちの上述の光結合関係にあるホトダイオード
にレンズ５により発光ダイオードの出射光が集光する。'----'+2s is driven, light emitting diode 2
A+2b+...--The light-emitting diode that emitted light and the photodiode 4 of +2t + 4 b+...
, 41, the light emitted from the light emitting diode is focused by the lens 5 on the photodiode having the above-mentioned optical coupling relationship.

集光したホトダイオードでは光電変換が行なわれ、アン
プ７　ａ、　　７　ｂ、　−・、　　７　ｉによりホト
ダイオード４ａ。Photoelectric conversion is performed in the photodiode that condenses the light, and the photodiode 4a is converted by the amplifiers 7a, 7b, -., 7i.

４ｂ、・−・１４１の出力が増幅されて受信側信号ライ
ンＳＴＢ’、　Ｄ？’　、Ｄ６’　、−・、ＤＯ′に出
力される。このようにして、送信側信号ラインＤＯ。The outputs of 4b, . . . 141 are amplified and sent to the receiving side signal lines STB', D? ', D6', -., DO'. In this way, the transmitting signal line DO.

Ｄ　Ｉ　、−一−−・、Ｄ７．ＳＴＢと受信側信号ライ
ンＤθ′。DI, -1--, D7. STB and receiving side signal line Dθ'.

Ｄ１′、・−・、Ｄ７’、ＳＴＢ’の間でデータ通信が
行なわれる。Data communication is performed between D1', . . . , D7', and STB'.

送信側信号ラインＳＴＢから与えられる信号ＳＴＢは、
送信側と受信側の同期をとるための信号である。第３図
に示すように、送信側からの信号ＳＴＢが受信側に伝送
されて受信側信号ラインＳＴＢ’に信号ＳＴＢ’が出力
されると、送信側信号ラインＤｏ、Ｄ　１．−、Ｄ７か
らの送信データＤＯ。The signal STB given from the transmission side signal line STB is
This is a signal for synchronizing the sending and receiving sides. As shown in FIG. 3, when the signal STB from the transmitting side is transmitted to the receiving side and the signal STB' is output to the receiving side signal line STB', the transmitting side signal lines Do, D1. -, transmission data DO from D7.

Ｄ　１、−・、Ｄ７は受信側信号ラインＤＯ’、ＤＩ’
。D1, -, D7 are receiving side signal lines DO', DI'
.

・−、Ｄ７’にデータＤＯ’、ＤＩ’、−，Ｄ７’とし
て取り込まれ、図示しないデータ処理装置に与えられる
。-, D7' as data DO', DI', -, D7', and provided to a data processing device (not shown).

なお、この実施例では発光素子アレイと受光素子アレイ
との間に配置するレンズを凸単レンズとしたが、本発明
はこの凸単レンズに限定されず、例えば屈折率分布型光
ファイバーを複数本並行に配列したロンドレンズアレイ
など種々のレンズが使用できることは言うまでもない。In this example, the lens disposed between the light emitting element array and the light receiving element array was a convex single lens, but the present invention is not limited to this convex single lens. For example, a plurality of gradient index optical fibers may be arranged in parallel. It goes without saying that various lenses can be used, such as a Rondo lens array arranged in .

〈発明の効果〉 以上説明したように、本発明においては、発光素子アレ
イと受光素子アレイとの間にレンズを配置し、このレン
ズにより発光素子の出射光を受光素子に集光させるよう
にしたので、素子間の光の干渉が生じず、したがって遮
蔽膜が不要になり、また、素子間の距離を小さくして複
数ビットのデータの並列通信が可能になる。<Effects of the Invention> As explained above, in the present invention, a lens is arranged between the light emitting element array and the light receiving element array, and the light emitted from the light emitting elements is focused on the light receiving element by this lens. Therefore, optical interference between the elements does not occur, so a shielding film is not required, and the distance between the elements can be reduced to enable parallel communication of multiple bits of data.

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

第１図は本発明実施例の構成を示す図、第２図は結像光
学系を示す光学線図、第３図は本発明実施例のタイミン
グチャート、第４図、第５図、第６図、第７図は従来例
の構成を示す図である。 ２−発光素子アレイ ２ａ〜２１−発光ダイオード ４−受光素子アレイ ４ａ〜４１−ホトダイオード ５−レンズFig. 1 is a diagram showing the configuration of an embodiment of the present invention, Fig. 2 is an optical line diagram showing an imaging optical system, Fig. 3 is a timing chart of the embodiment of the invention, Figs. 4, 5, and 6. 7 are diagrams showing the configuration of a conventional example. 2 - Light emitting element array 2a to 21 - Light emitting diode 4 - Light receiving element array 4a to 41 - Photodiode 5 - Lens

Claims (1)

【特許請求の範囲】[Claims] 通電により発光する発光素子を複数個列状に配置した発
光素子アレイと上記発光素子の出射光を受けて電気信号
に変換する受光素子を複数個列状に配置した受光素子ア
レイとの間に上記発光素子アレイの所定の発光素子の出
射光を上記受光素子アレイの所定の受光素子に集光させ
るレンズを配置し、上記複数の発光素子の出射光を上記
複数の受光素子が受光して情報の並列通信を行なうこと
を特徴とする光並列通信方式。The above-mentioned light-emitting element array has a plurality of light-emitting elements arranged in a row that emit light when energized, and a light-receiving element array having a plurality of light-receiving elements arranged in a row that receive the emitted light from the light-emitting elements and convert it into an electrical signal. A lens is arranged to focus the emitted light of a predetermined light emitting element of the light emitting element array onto a predetermined light receiving element of the light receiving element array, and the plurality of light receiving elements receive the emitted light of the plurality of light emitting elements, and information is transmitted. An optical parallel communication method characterized by parallel communication.
JP60130318A 1985-06-14 1985-06-14 Optical parallel communication system Pending JPS61288529A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP60130318A JPS61288529A (en) 1985-06-14 1985-06-14 Optical parallel communication system
DE19863619559 DE3619559A1 (en) 1985-06-14 1986-06-11 Communication system with parallel optical information transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60130318A JPS61288529A (en) 1985-06-14 1985-06-14 Optical parallel communication system

Publications (1)

Publication Number Publication Date
JPS61288529A true JPS61288529A (en) 1986-12-18

Family

ID=15031461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60130318A Pending JPS61288529A (en) 1985-06-14 1985-06-14 Optical parallel communication system

Country Status (2)

Country Link
JP (1) JPS61288529A (en)
DE (1) DE3619559A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02237329A (en) * 1989-03-10 1990-09-19 Canon Inc Optical space communication equipment
US5469286A (en) * 1992-11-13 1995-11-21 Dassault Electronique Optoelectronic installation for the interconnection of electronic modules and a corresponding optoelectric connector
US6898013B2 (en) 2000-08-16 2005-05-24 University Of Ottawa Optical transpose system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19530138A1 (en) * 1995-08-16 1997-02-27 Bogotzek Hans Multichannel audio system with central unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7017510A (en) * 1969-12-29 1971-07-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02237329A (en) * 1989-03-10 1990-09-19 Canon Inc Optical space communication equipment
US5469286A (en) * 1992-11-13 1995-11-21 Dassault Electronique Optoelectronic installation for the interconnection of electronic modules and a corresponding optoelectric connector
US6898013B2 (en) 2000-08-16 2005-05-24 University Of Ottawa Optical transpose system

Also Published As

Publication number Publication date
DE3619559C2 (en) 1990-08-09
DE3619559A1 (en) 1986-12-18

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