JPH0285783A - Magnetic and optical sensor - Google Patents
Magnetic and optical sensorInfo
- Publication number
- JPH0285783A JPH0285783A JP1077166A JP7716689A JPH0285783A JP H0285783 A JPH0285783 A JP H0285783A JP 1077166 A JP1077166 A JP 1077166A JP 7716689 A JP7716689 A JP 7716689A JP H0285783 A JPH0285783 A JP H0285783A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- optical
- light
- recording medium
- pattern
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 44
- 239000013307 optical fiber Substances 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 18
- 239000012780 transparent material Substances 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 4
- 239000011521 glass Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Landscapes
- Measuring Magnetic Variables (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は紙幣の鑑別などに使用される磁気及び児センサ
に関し、記録媒体の同一場所の磁気及び光学的パターン
を同時に読み出し可能としたものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a magnetic and optical sensor used for banknote identification, etc., and is capable of simultaneously reading magnetic and optical patterns at the same location on a recording medium. be.
（従来の技術）
従来は磁気センサとして第５図に示すような磁気ヘッド
タイプの磁気センサがあった。これは磁気コアへの外周
に取り付けられたコイルＢに流れる誘導電流を検出する
か、コイルＢのインピーダン又の変化を検出することに
より、ギャップＣ付近の磁性体の存在を感知し、これに
よって磁気パターンを読み取るものである。(Prior Art) Conventionally, there has been a magnetic head type magnetic sensor as shown in FIG. 5 as a magnetic sensor. This detects the presence of a magnetic material near the gap C by detecting the induced current flowing in the coil B attached to the outer periphery of the magnetic core, or by detecting changes in the impedance of the coil B. It reads patterns.
また従来は光センサとして第６図イに示すように、発光
素子りから出る光をレンズＥで集光して記録媒体Ｆに投
射し、同媒体Ｆからの反射光をレンズＧにより受光素子
［１に集光して検出するものとか、第６図口に示すよう
に発光素子■から出る児をレンズｊで集光し、これを記
録媒体Ｆに投射して同媒体Ｆを透過させ、この透過光を
レンズにで集光して受光素子りに入ｑ４させることによ
り記録媒体Ｆに描かれている光学的濃淡パターンを読み
取るものなどがあった。Furthermore, in the conventional optical sensor, as shown in FIG. 6A, light emitted from a light emitting element is collected by a lens E and projected onto a recording medium F, and the reflected light from the medium F is reflected by a lens G to a light receiving element [ For example, as shown in Figure 6, the light emitted from the light emitting element (2) is focused by a lens (J), projected onto a recording medium (F), and transmitted through the same medium (F). There was one that read the optical density pattern drawn on the recording medium F by condensing the transmitted light with a lens and making it enter the light-receiving element q4.
また最近では印刷インクに磁性体粉末を混入することで
記録媒体Ｆに磁気パターンと光字的ａ淡パターンとを同
時に描（ことが可能となったため、Ｌ記の磁気センサと
光センサを１つの機器に組み込んで磁気パターンと光学
的パターンの読み取りを行なうようにしたものもある。Recently, it has become possible to simultaneously draw a magnetic pattern and an optical a-light pattern on a recording medium F by mixing magnetic powder into printing ink. Some are built into devices to read magnetic and optical patterns.
（発明が解決しようとする問題点）
しかし、磁気センサと光センサを単に同一機器に組み込
んだだけではその取り付は位置が異なるため、記録媒体
Ｆにおける同一場所の磁気パターンと光字的濃淡パター
ンとを同時に読み取ることができない、そのためせっか
く同一場所に磁気と光の両パターンが描かれていてもそ
れが有効に活用されないといつ問題があった。(Problem to be Solved by the Invention) However, if a magnetic sensor and an optical sensor are simply incorporated into the same device, their mounting positions will be different, so the magnetic pattern and the optical shading pattern at the same location on the recording medium F Therefore, even if both magnetic and optical patterns were drawn in the same place, there was a problem if they were not used effectively.
（問題点を解決するための手段）
本発明は記録媒体Ｆにおける同一場所の磁気と光の両パ
ターンを同時に読み取ることができるようにしたもので
ある。(Means for Solving the Problems) The present invention makes it possible to read both magnetic and optical patterns at the same location on the recording medium F at the same time.
そのため本発明は、第１図〜第４図に示すように２磁気
センサｌの磁気検出ギャップ部２を透光性のある材料で
形成し、同ギャップ部２に光学的検出装置３を設けてな
るものである。Therefore, in the present invention, as shown in FIGS. 1 to 4, the magnetic detection gap 2 of the two magnetic sensors 1 is made of a transparent material, and an optical detection device 3 is provided in the gap 2. It is what it is.
（作用）
本発明の磁気及び光センサを使用するには１例λば第１
図に示すように磁性体粉末が混入された印刷インクによ
り磁気パターンと光学的濃淡パターンとが同時に描かれ
ている記録媒体Ｆを磁気ヘッド４に密着させつつ移動さ
せればよい、この場合光学的検出装置３により記録媒体
Ｆの光パターンが読み取られ、同時にその場所の磁気パ
ターンが磁気センサにより読み取られる。(Function) One example of using the magnetic and optical sensor of the present invention is λ.
As shown in the figure, a recording medium F on which a magnetic pattern and an optical density pattern are simultaneously drawn using printing ink mixed with magnetic powder may be moved while keeping it in close contact with the magnetic head 4. In this case, the optical The optical pattern of the recording medium F is read by the detection device 3, and at the same time, the magnetic pattern at that location is read by the magnetic sensor.
（実施例）
本発明の磁気検出ギャップ部２を形成する透光性のある
材質としてはガラスもしくはプラスチックスなどの透明
体がある。(Example) Transparent materials such as glass and plastics can be used as the light-transmitting material forming the magnetic detection gap portion 2 of the present invention.
光学的検出装置３は、発光素子５と、受光素子６と、両
素子間を光学的に接続する光ファイバ７とから構成され
る。The optical detection device 3 includes a light emitting element 5, a light receiving element 6, and an optical fiber 7 optically connecting the two elements.
第２図に示した光学的検出装置３は１発光素子５からの
光を入射路用光ファイバ７ａにより透明なギャップ部２
へ導き、この光を記録媒体Ｆで反射させてその反射光を
反射路用光ファイバ７ｂにより受光素子６へ導くように
しである。The optical detection device 3 shown in FIG.
This light is reflected by the recording medium F, and the reflected light is guided to the light receiving element 6 through the optical fiber 7b for a reflection path.
第３図に示した光学的検出装置３は１発光素子５からの
光を記録媒体Ｆに投φｔして同媒体Ｆを透過させ、この
透過光を受光素子６で受光して同媒体Ｆの光字的ａ淡パ
ターンを読み取るようにしである。The optical detection device 3 shown in FIG. It is designed to read a light a-light pattern.
磁気センサｌとしては第１図、第４図に示したように磁
気コア８とコイル９とから成る誘導形磁気ヘッドのほか
に１磁気抵抗素子やホール素子を用いた磁気ヘッドを使
用してもよい。As the magnetic sensor l, in addition to an inductive magnetic head consisting of a magnetic core 8 and a coil 9 as shown in Figs. 1 and 4, a magnetic head using a magnetoresistive element or a Hall element may also be used. good.
（発明の効果）
本発明に係る磁気及び光センサは以下のような効果を有
する。(Effects of the Invention) The magnetic and optical sensor according to the present invention has the following effects.
（１）＆ｌｆｔ気センサｌと光学的検出装置３とが共に
磁気検出ギャップ部２に設けられているため、記録媒体
Ｆの同一場所の磁気パターンと光学的ａ淡パターンを同
時に読み取るたことができる。(1) Since the &lft air sensor l and the optical detection device 3 are both provided in the magnetic detection gap section 2, it is possible to read the magnetic pattern and the optical alight pattern at the same location on the recording medium F at the same time. .
（２）同一時刻に異なる場所の磁気パターンもしくは光
学的パターンを読み取るのに比して、誤読の可能性が少
ない、従って高精度の読み取ができる。(2) Compared to reading magnetic patterns or optical patterns at different locations at the same time, there is less possibility of misreading, and therefore highly accurate reading is possible.
（３） ｌｉａ気センサ１と光学的検出装置３とが一体
であるため機器の組み立てや、部品の位置決めが容易で
あり、また小型化することもできる。(3) Since the liaison sensor 1 and the optical detection device 3 are integrated, it is easy to assemble the device and position the parts, and the device can also be miniaturized.
第１図は本発明に係る磁気及び光センサの一実施例を示
す斜視図、第２図、第３図は光センサ部の各種例を示す
部分説明図、第４図は本発明に係る磁気及び光センサの
他の実施例を示す側面図、第５図は従来の磁気へ・ノド
を示す斜視図、第６図イは従来の光センサの一例を示す
斜視図、同図口は従来の光センサの他の例を示す斜視図
。
１は磁気センサ
２は磁気検出ギャップ部
３は光学的検出装置FIG. 1 is a perspective view showing an embodiment of the magnetic and optical sensor according to the present invention, FIGS. 2 and 3 are partial explanatory views showing various examples of the optical sensor section, and FIG. 4 is a magnetic and a side view showing another embodiment of the optical sensor; FIG. 5 is a perspective view showing a conventional magnetic nose; FIG. 6 A is a perspective view showing an example of a conventional optical sensor; FIG. 7 is a perspective view showing another example of the optical sensor. 1 is a magnetic sensor 2 is a magnetic detection gap part 3 is an optical detection device
Claims (7)
気検出ギャップ部を、透光性のある材料で形成し、同ギ
ャップ部に記録媒体の光学的パターンを読取る光学的検
出装置を設けてなる磁気及び光センサ。(1) A magnetic detection gap section of a magnetic sensor that reads the magnetic pattern of the recording medium is formed of a transparent material, and an optical detection device that reads the optical pattern of the recording medium is provided in the gap section. and optical sensors.
素子間を光学的に接続する光ファイバとから構成される
特許請求の範囲第１項記載の磁気及び光センサ。(2) The magnetic and optical sensor according to claim 1, wherein the optical detection device includes a light emitting element, a light receiving element, and an optical fiber optically connecting the two elements.
ァイバとを使用し、両ファイバを共に磁気検出ギャップ
部を介して記録媒体と対向するよう設けてなる特許請求
の範囲第２項記載の磁気及び光センサ。(3) The magnetic field according to claim 2, wherein an incident path fiber and a reflection path fiber are used as optical fibers, and both fibers are provided so as to face the recording medium through a magnetic detection gap portion. and optical sensors.
させ、記録媒体を透過した光を受ける検出用光ファイバ
を磁気検出ギャップ部に設けてなる特許請求の範囲第２
項または第３項記載の磁気及び光センサ。(4) A light-emitting element and a light-receiving element are opposed to each other with a recording medium interposed therebetween, and a detection optical fiber that receives light transmitted through the recording medium is provided in the magnetic detection gap part.
Magnetic and optical sensor according to item 1 or 3.
範囲第１項または第２項または第３項または第４項記載
の磁気及び光センサ。(5) The magnetic and optical sensor according to claim 1 or 2 or 3 or 4, wherein the magnetic sensor is an inductive magnetic head.
ある特許請求の範囲第１項または第２項または第３項ま
たは第４項記載の磁気及び光センサ。(6) The magnetic and optical sensor according to claim 1, 2, 3, or 4, wherein the magnetic sensor is a magnetic head using a magnetoresistive element.
る特許請求の範囲第１項または第２項または第３項また
は第４項記載の磁気及び光センサ。(7) The magnetic and optical sensor according to claim 1, 2, 3, or 4, wherein the magnetic sensor is a magnetic head using a Hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1077166A JP2583307B2 (en) | 1989-03-29 | 1989-03-29 | Reflective magnetic and optical sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1077166A JP2583307B2 (en) | 1989-03-29 | 1989-03-29 | Reflective magnetic and optical sensors |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5353664A Division JP2651116B2 (en) | 1993-12-30 | 1993-12-30 | Transmission type magnetic and optical sensors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0285783A true JPH0285783A (en) | 1990-03-27 |
| JP2583307B2 JP2583307B2 (en) | 1997-02-19 |
Family
ID=13626204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1077166A Expired - Fee Related JP2583307B2 (en) | 1989-03-29 | 1989-03-29 | Reflective magnetic and optical sensors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583307B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4932130A (en) * | 1972-07-27 | 1974-03-23 | ||
| JPS5835136U (en) * | 1981-08-31 | 1983-03-07 | 株式会社日立製作所 | magnetic information reader |
-
1989
- 1989-03-29 JP JP1077166A patent/JP2583307B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4932130A (en) * | 1972-07-27 | 1974-03-23 | ||
| JPS5835136U (en) * | 1981-08-31 | 1983-03-07 | 株式会社日立製作所 | magnetic information reader |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2583307B2 (en) | 1997-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |