JPS62264736A - Image pickup device - Google Patents
Image pickup deviceInfo
- Publication number
- JPS62264736A JPS62264736A JP61107710A JP10771086A JPS62264736A JP S62264736 A JPS62264736 A JP S62264736A JP 61107710 A JP61107710 A JP 61107710A JP 10771086 A JP10771086 A JP 10771086A JP S62264736 A JPS62264736 A JP S62264736A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting element
- video signal
- image pickup
- power
- 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 30
- 238000003384 imaging method Methods 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 239000013307 optical fiber Substances 0.000 description 10
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000013308 plastic optical fiber Substances 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、撮像信号の光伝送に用いることができる撮像
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an imaging device that can be used for optical transmission of imaging signals.
（従来の技術）
近年、ＦＡやＯＡが進歩する中で撮像装置は、ロボット
の視覚センサや工場内監視に広く用いられている。しか
し、このような所に用いられる撮像装置は、電磁誘導雑
音などの影響を受けやすいので、映像信号を光信号に変
換して光ファイバで伝送する光伝送がしばしば用いられ
ている。映像信号を光伝送するためには、映像信号を光
信号に変換する光送信機が必要とされていた。(Prior Art) In recent years, with advances in FA and OA, imaging devices have been widely used as visual sensors for robots and for monitoring inside factories. However, since imaging devices used in such places are susceptible to electromagnetic induction noise and the like, optical transmission in which video signals are converted to optical signals and transmitted through optical fibers is often used. In order to optically transmit video signals, an optical transmitter that converts the video signals into optical signals is required.
（発明が解決しようとする問題点）
前記従来の撮像装置と光送信機の組合わせによる光伝送
には、撮像装置と光送信機との接合方法、各機器への給
電方法、光送信機のコストおよび固定方法等の観点から
、前記光送信機を含めた撮像装置の小型化、低コスト化
ができないという問題点があった。(Problems to be Solved by the Invention) Optical transmission using the conventional combination of an imaging device and an optical transmitter requires a method of joining the imaging device and the optical transmitter, a method of feeding power to each device, and a method of connecting the optical transmitter to the optical transmitter. There has been a problem in that the imaging device including the optical transmitter cannot be made smaller or lower in cost from the viewpoint of cost and fixing method.
（問題点を解決するための手段）
前記問題点を解決するために本発明は、電源の投入、遮
断を示す発光波長６６０ｎｍの発光素子を、映像信号で
変調するように構成した撮像装置を提供するものである
。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides an imaging device configured to modulate a light emitting element with an emission wavelength of 660 nm, which indicates turning on and off of power, with a video signal. It is something to do.
（作 用）
前記構成によれば、撮像装置の発光素子は、映像信号を
電気ケーブルで伝送する時にはパイロットランプとして
動作し、映像信号を光ファイバで光伝送する時には前記
発光素子の光出力端子を光ファイバに結合するだけで前
記映像信号の光伝送が可能となる。(Function) According to the above configuration, the light emitting element of the imaging device operates as a pilot lamp when the video signal is transmitted through the electric cable, and when the video signal is optically transmitted through the optical fiber, the light output terminal of the light emitting element is operated as a pilot lamp. Optical transmission of the video signal becomes possible simply by coupling to an optical fiber.
（実施例） 本発明の撮像装置を、図を参照して説明する。(Example) An imaging device of the present invention will be explained with reference to the drawings.
図は本発明の撮像装置の構成のブロック図を示す。The figure shows a block diagram of the configuration of an imaging device according to the present invention.
図しこおいて、撮像装置１は撮像ヘッド２と撮像ヘッド
制御装置３とで構成されている。撮像ヘッド制御装置３
内の映像信号処理回路４からの映像信号Ａは発光素子駆
動回路５に入力され、スイッチ６の”ＯＮ” ”ＯＦＦ
”操作すなわち電源回路７の投入、遮断に応じて発光素
子８の映像信号Ａによる変調動作を’ＯＮ” ”ＯＦ
Ｆ”させる。発光索子８は、発光波長６６０ｎｍダブル
へテロ構造のＧａＡＮＡｓ赤色発光ダイオードを使用し
ているので、駆動電流２０ｍ Ａの時の光出力１ｍＷの
高出力、帯域周波数１０ＭＨｚの高速応答という特性を
持っており、透明樹脂製の光コネクタレセプタクル９に
収納されている。In the figure, an imaging device 1 is composed of an imaging head 2 and an imaging head control device 3. As shown in FIG. Imaging head control device 3
The video signal A from the video signal processing circuit 4 is input to the light emitting element drive circuit 5, and the switch 6 is turned on or off.
``The modulation operation of the light emitting element 8 by the video signal A is 'ON'' or ``OF
The light emitting device 8 uses a double heterostructure GaANAs red light emitting diode with an emission wavelength of 660 nm, so it has a high optical output of 1 mW at a drive current of 20 mA and a fast response with a band frequency of 10 MHz. It is housed in an optical connector receptacle 9 made of transparent resin.
映像信号Ａを電気ケーブルで伝送する時は、電気ケーブ
ル（図示せず）を電気コネクタ１０に接続して伝送する
と、発光素子８は透明樹脂製光コネクタレセプタクル９
に収納されているので、外部から発光、非発光の状態が
ｌ１１測できて、電源の投入。When transmitting the video signal A using an electric cable, the electric cable (not shown) is connected to the electric connector 10 and the light emitting element 8 is connected to the transparent resin optical connector receptacle 9.
Since it is housed in the unit, you can measure whether it is emitting light or not emitting light from the outside, and then turn on the power.
遮断を示すパイロットランプとして動作する。発光素子
８は、高出力の赤色発光ダイオードを用いているので輝
度もパイロットランプ用として十分である。また、発光
素子８は映像信号Ａで変調されているが、人間の目には
ちらつきがほとんど感じられずに一定の明るさに見える
。Operates as a pilot light to indicate shutdown. Since the light emitting element 8 uses a high output red light emitting diode, its brightness is sufficient for a pilot lamp. Furthermore, although the light emitting element 8 is modulated by the video signal A, it appears to have constant brightness with almost no flicker perceptible to the human eye.
一方、映像信号Ａを光伝送する時は、光コネクタプラグ
１１の付いた光ファイバ１２を透明樹脂製光コネクタレ
セプタクル９に挿入するだけで伝送することができて、
光送信機を必要としない。光コネクタレセプタクル９が
透明樹脂製であるので、光ファイバ１２を挿入した状態
でも、発光素子８の発光、非発光状態を観測することが
できて、電源の投入、遮断の状態が分かる。更に、発光
素子８は、プラスチック光ファイバの低損失波長に相当
する発光波長６６０ｎｍの発光ダイオードを用いている
の、で、低価格で取り扱い容易なプラスチック光ファイ
バを用いても７０ｍ以上の伝送が可能である。On the other hand, when optically transmitting the video signal A, it can be transmitted simply by inserting the optical fiber 12 with the optical connector plug 11 into the transparent resin optical connector receptacle 9.
No optical transmitter required. Since the optical connector receptacle 9 is made of transparent resin, even when the optical fiber 12 is inserted, the light emitting and non-emitting states of the light emitting element 8 can be observed, and the power on and off state can be determined. Furthermore, the light-emitting element 8 uses a light-emitting diode with an emission wavelength of 660 nm, which corresponds to the low-loss wavelength of a plastic optical fiber, so transmission over 70 m is possible even using a low-cost and easy-to-handle plastic optical fiber. It is.
前記のように、本ｔ５Ｊ’ｌによれば、電源の投入、遮
断を示す発光素子８を映像信号Ａで変調するとともに１
発光波長６６０ｎｍの赤色発光ダイオードからなる発光
素子８を透明樹脂製光コネクタレセプタクル９に収納す
ることで、映像信号Ａを電気ケーブルで伝送する時は、
発光素子８は電源の投入、遮断を示すパイロットランプ
として動作し、映像信号Ａを光伝送する時は、光ファイ
バを透明樹脂製光コネクタレセプタクルに挿入するだけ
で光伝送が可能となり、発光素子８はパイロットランプ
としての動作も行うことができる
（発明の効果）
本発明によれば、電源の投入、遮断を示す発光素子を映
像信号で変調することで、映像信号を光伝送する時は、
光ファイバを前記発光素子に結合するだけで光伝送がで
きるので、光送信機を使用するための問題点を生じるこ
とがなく、非常に小型で低価格の光伝送機能を有する撮
像装置を実現することができて、実用的効果は大きい。As mentioned above, according to this t5J'l, the light emitting element 8 indicating power on/off is modulated with the video signal A, and the 1
By housing the light emitting element 8 consisting of a red light emitting diode with an emission wavelength of 660 nm in the transparent resin optical connector receptacle 9, when transmitting the video signal A using an electric cable,
The light emitting element 8 operates as a pilot lamp to indicate power on/off, and when transmitting the video signal A, optical transmission is possible simply by inserting the optical fiber into the transparent resin optical connector receptacle, and the light emitting element 8 can also operate as a pilot lamp (effects of the invention) According to the present invention, when a video signal is optically transmitted by modulating a light emitting element indicating power on/off with a video signal,
Since optical transmission can be performed simply by coupling an optical fiber to the light emitting element, there are no problems associated with using an optical transmitter, and an extremely compact and low-cost imaging device having an optical transmission function is realized. This has great practical effects.
さらに、発光素子を透明樹脂製の光コネクタレセプタク
ルに収納することで、光ファイバとの結合が容易に精度
良く行えるとともに、前記光ファイバを結合した後も、
電源の投入、遮断の状態を確認できるという効果も得ら
れる。Furthermore, by housing the light emitting element in an optical connector receptacle made of transparent resin, coupling with an optical fiber can be easily and accurately performed, and even after coupling the optical fiber,
It also has the effect of being able to confirm the power on/off status.
また、発光素子にはプラスチックファイバの低損失波長
に対応するために発光波長６６０ｎｍの赤色発光ダイオ
ードを使用しているので、低価格で取り扱い容易なプラ
スチックファイバも有効に使用できるという効果も得ら
れる。Further, since a red light emitting diode with a light emission wavelength of 660 nm is used as the light emitting element in order to correspond to the low loss wavelength of plastic fiber, it is also possible to effectively use plastic fiber which is inexpensive and easy to handle.
図は、本発明の撮像装置の構成のブロック図を示す。
１ ・・・撮像装置、 ２ ・・・撮像ヘッド。
３ ・・・撮像ヘッド制御装置、 ４・・・映像信号処
理回路、 ５ ・・・発光素子駆動回路、６ ・・スイ
ッチ、 ７ ・・・電源回路、 ８・・・発光素子、
９ ・・・透明樹脂製光コネクタレセプタクル、１０・
・・電気コネクタ、１１・・・光コネクタプラグ、
１２・・・光ファイバ。The figure shows a block diagram of the configuration of an imaging device of the present invention. 1... Imaging device, 2... Imaging head. 3... Imaging head control device, 4... Video signal processing circuit, 5... Light emitting element drive circuit, 6... Switch, 7... Power supply circuit, 8... Light emitting element,
9...Transparent resin optical connector receptacle, 10.
...electrical connector, 11...optical connector plug,
12...Optical fiber.
Claims (3)
調されることを特徴とする撮像装置。(1) An imaging device characterized in that a light emitting element indicating power on/off is modulated by a video signal.
に収納されていることを特徴とする特許請求の範囲第（
１）項記載の撮像装置。(2) Claim No. 1 (2) characterized in that the light emitting element is housed in an optical connector receptacle made of transparent resin.
1) The imaging device described in section 1).
ードで形成されていることを特徴とする特許請求の範囲
第（１）項記載の撮像装置。(3) The imaging device according to claim (1), wherein the light emitting element is formed of a red light emitting diode with an emission wavelength of 660 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61107710A JPS62264736A (en) | 1986-05-13 | 1986-05-13 | Image pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61107710A JPS62264736A (en) | 1986-05-13 | 1986-05-13 | Image pickup device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62264736A true JPS62264736A (en) | 1987-11-17 |
Family
ID=14465984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61107710A Pending JPS62264736A (en) | 1986-05-13 | 1986-05-13 | Image pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62264736A (en) |
-
1986
- 1986-05-13 JP JP61107710A patent/JPS62264736A/en active Pending
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