JPH0371822B2 - - Google Patents
Info
- Publication number
- JPH0371822B2 JPH0371822B2 JP61109762A JP10976286A JPH0371822B2 JP H0371822 B2 JPH0371822 B2 JP H0371822B2 JP 61109762 A JP61109762 A JP 61109762A JP 10976286 A JP10976286 A JP 10976286A JP H0371822 B2 JPH0371822 B2 JP H0371822B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical
- light emitting
- receiving
- chassis
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 50
- 230000008054 signal transmission Effects 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Optical Communication System (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、発光素子及び受光素子を用いて光
空間伝播による信号伝送を行なう際に使用される
送受光装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a light transmitting/receiving device used when performing signal transmission by optical space propagation using a light emitting element and a light receiving element.
〔従来技術とその欠点〕
第３図は従来の光空間伝送用の送受光装置を示
すもので、発光素子１１と受光素子１２は、それ
ぞれ別々のプリント基板１３，１４上に配置さ
れ、この各プリント基板１３，１４はシヤーシ１
５に対し、その発光及び受光方向が略同一の方向
となるように並列に組込まれる。[Prior art and its drawbacks] Fig. 3 shows a conventional light transmitting and receiving device for optical space transmission, in which a light emitting element 11 and a light receiving element 12 are arranged on separate printed circuit boards 13 and 14, respectively. The printed circuit boards 13 and 14 are the chassis 1
5, they are installed in parallel so that their light emitting and light receiving directions are substantially the same.
一方、光学レンズ１６，１７はケース１８の一
側面に予め設定される間隔を有し配置されるもの
で、上記発光素子１１及び受光素子１２の取付け
られたシヤーシ１５は、ケース１８の内部にその
発光及び受光方向を光学レンズ１６，１７と対向
させて配置される。 On the other hand, the optical lenses 16 and 17 are arranged at a preset interval on one side of the case 18, and the chassis 15 to which the light emitting element 11 and the light receiving element 12 are attached is located inside the case 18. The optical lenses 16 and 17 are arranged so that the light emitting and light receiving directions are opposite to each other.
この場合、発光素子１１と受光素子１２とは、
それぞれ別々の基板１３，１４に対し取付けられ
るばかりか、シヤーシ１５を介して光学レンズ１
６，１７の配置されるケース１８に対し組込まれ
るため、最終的に光学レンズ１６，１７に対する
発光素子１１及び受光素子１２の取付け誤差が生
じることになる。このため、発光素子１１と光学
レンズ１６との焦点位置合わせ、あるいは受光素
子１２と光学レンズ１７との焦点位置合わせ等、
例えばねじ１９ａ，１９ｂを利用した基板取付け
角度の可変による様々な光軸調整が必要である。 In this case, the light emitting element 11 and the light receiving element 12 are
Not only are they attached to separate substrates 13 and 14, but also the optical lens 1 is attached via a chassis 15.
Since the light emitting element 11 and the light receiving element 12 are assembled into the case 18 in which the optical lenses 16 and 17 are arranged, errors in the attachment of the light emitting element 11 and the light receiving element 12 to the optical lenses 16 and 17 will eventually occur. Therefore, focus alignment between the light emitting element 11 and the optical lens 16, focus alignment between the light receiving element 12 and the optical lens 17, etc.
For example, it is necessary to perform various optical axis adjustments by changing the mounting angle of the substrate using screws 19a and 19b.
この発明は上記のような問題点に鑑みなされた
もので、光学レンズと発光及び受光素子との間に
様々な取付け誤差が生じることなく、焦点位置調
整及び光軸調整の不要な送受光装置を提供するこ
とを目的とする。
This invention was made in view of the above-mentioned problems, and it is possible to create a light transmitting and receiving device that does not require focal position adjustment or optical axis adjustment, without causing various installation errors between the optical lens and the light emitting and light receiving elements. The purpose is to provide.
すなわちこの発明に係わる送受光装置は、発光
素子と受光素子とをそれぞれ予め設定された光軸
間隔を有して同一基板上に配置し、この発光及び
受光素子の配置された送受光基板を光学レンズを
組込んだシヤーシと同一のシヤーシに対して組込
み、この組込み状態で上記発光及び受光素子と光
学レンズとの距離、そして各光学レンズ間及び各
光素子間の距離が定まるよう構成したものであ
る。
In other words, the light transmitting/receiving device according to the present invention has a light emitting element and a light receiving element arranged on the same substrate with a preset optical axis interval, and the light transmitting/receiving board on which the light emitting and light receiving elements are arranged is optically The lens is installed in the same chassis as the chassis in which the lens is installed, and the distance between the light emitting and light receiving elements and the optical lens, and the distance between each optical lens and between each optical element are determined in this installed state. be.
以下図面を参照して本発明の一実施例を説明す
る。
An embodiment of the present invention will be described below with reference to the drawings.
第１図はその構成を示すもので、本送受光装置
は、発光素子２１及び受光素子２２を備えてい
る。この発光素子２１と受光素子２２は、それぞ
れ図示しない相手方送受光装置との間で空間伝播
による光信号の送受光を行なうもので、この発光
素子２１と受光素子２２を、それぞれその発光方
向ｔと受光方向ｒとを同一にし、予め設定される
光軸間隔ｋを持つて同一プリント基板２３上に配
置する。 FIG. 1 shows its configuration, and the present light transmitting/receiving device includes a light emitting element 21 and a light receiving element 22. The light-emitting element 21 and the light-receiving element 22 transmit and receive optical signals through space propagation between each other and the other party's light-transmitting/receiving device (not shown). They are arranged on the same printed circuit board 23 with the same light receiving direction r and a preset optical axis interval k.
このプリント基板２３は、四辺枠状のシヤーシ
２４に対し、例えばその一側面部として組込まれ
るもので、このプリント基板２３の送受光方向
ｔ，ｒに対向する同一シヤーシ２４の対向側面に
は、それぞれ上記予め設定される光軸間隔ｋを持
つて、発光素子２１及び受光素子２２に各対応す
る光学レンズ２５，２６を配置し組込む。そし
て、プリント基板２３及び光学レンズ２５，２６
を組込んだシヤーシ２４を本体ケース２７に組込
み構成する。 This printed circuit board 23 is incorporated into a four-sided frame-shaped chassis 24, for example, as one side thereof. Optical lenses 25 and 26 corresponding to the light-emitting element 21 and the light-receiving element 22 are arranged and assembled with the preset optical axis interval k as described above. Then, the printed circuit board 23 and the optical lenses 25 and 26
A chassis 24 incorporating the above is assembled into a main body case 27.
この場合、上記発光素子２１及び受光素子２２
それぞれの光軸ｔ，ｒに平行となるシヤーシ２４
の側辺距離ｌは、予め光学レンズ２５，２６の焦
点距離に対応する長さに設定する。 In this case, the light emitting element 21 and the light receiving element 22
Chassis 24 parallel to the respective optical axes t and r
The side distance l is set in advance to a length corresponding to the focal length of the optical lenses 25 and 26.
すなわち、上記構成による送受光装置において
は、発光素子２１及び受光素子２２を、それぞれ
同一のプリント基板２３上に配置すると共に、そ
の発光及び受光素子２１，２２の配置されたプリ
ント基板２３と送受光用光学レンズ２５，２６と
を、それぞれ同一のシヤーシ２４に対し対向配置
し組込み構成したので、予め発光素子２１と受光
素子２２との間及び各光学レンズ２５，２６間の
光軸距離ｋと、各送受光素子２１，２２と光学レ
ンズ２５，２６との間を設定するシヤーシ２４の
一辺の長さｌを定めておくことにより、シヤーシ
２４に対し、発光及び受光素子２１，２３を組込
んだプリント基板２３と、それぞれ対応する光学
レンズ２５，２６とを組込んだ時点で、必然的に
光学レンズ２５，２６に対する各素子２１，２２
の焦点位置、及び光軸位置が合わされることにな
り、その調整は全く不要となる。 That is, in the light transmitting/receiving device having the above configuration, the light emitting element 21 and the light receiving element 22 are arranged on the same printed circuit board 23, and the light emitting element 21 and the light receiving element 22 are connected to the printed circuit board 23 on which the light receiving elements 21 and 22 are arranged. Since the optical lenses 25 and 26 are arranged and incorporated into the same chassis 24, the optical axis distance k between the light emitting element 21 and the light receiving element 22 and between each optical lens 25 and 26 is determined in advance. By predetermining the length l of one side of the chassis 24 between each light transmitting and receiving element 21, 22 and the optical lenses 25, 26, the light emitting and light receiving elements 21, 23 are incorporated into the chassis 24. When the printed circuit board 23 and the corresponding optical lenses 25 and 26 are assembled, each element 21 and 22 for the optical lenses 25 and 26 is inevitably assembled.
The focal position and the optical axis position of the lens are aligned, and there is no need to adjust them at all.
尚、上記第１図における実施例では、光学レン
ズ２５，２６はシヤーシ２４に対し分割配置され
ているが、例えば第２図に示すように、送光用の
光学レンズ２５と受光用の光学レンズ２６とを一
体化し、複眼の光学レンズ２８として組込み構成
してもよい。 In the embodiment shown in FIG. 1, the optical lenses 25 and 26 are arranged separately with respect to the chassis 24, but as shown in FIG. 2, for example, the optical lens 25 for transmitting light and the optical lens for receiving light 26 may be integrated into a compound eye optical lens 28.
以上のようにこの発明によれば、発光素子と受
光素子とをそれぞれ予め設定された光軸間隔を有
して同一基板上に配置し、この発光及び受光素子
の配置された送受光基板を光学レンズを組込んだ
シヤーシと同一のシヤーシに対して組込み、この
組込み状態で上記発光及び受光素子と光学レンズ
との距離、そして各光学レンズ間及び各光素子間
の距離が定まるよう構成したので、光学レンズと
発光及び受光素子との間に様々な取付け誤差が生
じることなく、焦点位置調整及び光軸調整の不要
な送受光装置を提供できる。
As described above, according to the present invention, the light emitting element and the light receiving element are arranged on the same substrate with a preset optical axis interval, and the light transmitting and receiving board on which the light emitting and light receiving elements are arranged is The lens is installed in the same chassis as the one in which the lens is installed, and in this installed state, the distance between the light emitting and light receiving elements and the optical lens, and the distance between each optical lens and between each optical element are determined. It is possible to provide a light transmitting/receiving device that does not require focal position adjustment or optical axis adjustment without causing various mounting errors between the optical lens and the light emitting and light receiving elements.
第１図は本発明の一実施例に係わる送受光装置
を示す構成図、第２図は上記第１図における送受
光装置の他の実施例を示す構成図、第３図は従来
の送受光装置を示す構成図である。
２１……発光素子、２……受光素子、２３……
プリント基板、２４……シヤーシ、２５……送光
用光学レンズ、２６……受光用光学レンズ、２７
……本体ケース、２８……複眼光学レンズ。
FIG. 1 is a block diagram showing a light transmitting and receiving device according to an embodiment of the present invention, FIG. 2 is a block diagram showing another embodiment of the light transmitting and receiving device in FIG. 1, and FIG. 3 is a block diagram showing a conventional light transmitting and receiving device. FIG. 2 is a configuration diagram showing the device. 21... Light emitting element, 2... Light receiving element, 23...
Printed circuit board, 24... Chassis, 25... Optical lens for light transmission, 26... Optical lens for light reception, 27
...Body case, 28...Compound optical lens.
Claims (1)
送受光装置において、 発光素子と受光素子がそれぞれその発光方向と
受光方向を同一にして予め設定される光軸間隔を
有し配置される送受光基板と、 この送受光基板が組込まれるシヤーシと同一シ
ヤーシの上記発光及び受光方向に対向して組込ま
れそれぞれ上記予め設定される光軸間隔を有し上
記送受光基板との間隔がその焦点距離と等しい距
離で配置される２つの光学レンズとを具備し、 上記２つの光学レンズの光軸上にそれぞれ上記
発光素子と受光素子を配置することを特徴とする
送受光装置。[Claims] 1. In a light transmitting/receiving device that performs bidirectional signal transmission through optical space propagation, a light emitting element and a light receiving element each have the same light emitting direction and light receiving direction and have a preset optical axis interval. a light transmitting/receiving board to be disposed, and a space between the light transmitting/receiving board and the light transmitting/receiving board, which are installed opposite to the light emitting and light receiving directions of the same chassis as the chassis into which the light transmitting/receiving board is installed, and each having the preset optical axis interval. and two optical lenses arranged at a distance equal to the focal length of the optical lenses, and the light emitting element and the light receiving element are arranged on the optical axes of the two optical lenses, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61109762A JPS62265827A (en) | 1986-05-14 | 1986-05-14 | Optical transmission and reception device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61109762A JPS62265827A (en) | 1986-05-14 | 1986-05-14 | Optical transmission and reception device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62265827A JPS62265827A (en) | 1987-11-18 |
| JPH0371822B2 true JPH0371822B2 (en) | 1991-11-14 |
Family
ID=14518586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61109762A Granted JPS62265827A (en) | 1986-05-14 | 1986-05-14 | Optical transmission and reception device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62265827A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5122893A (en) * | 1990-12-20 | 1992-06-16 | Compaq Computer Corporation | Bi-directional optical transceiver |
-
1986
- 1986-05-14 JP JP61109762A patent/JPS62265827A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62265827A (en) | 1987-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |