JP2781900B2 - Infrared detector - Google Patents
Infrared detectorInfo
- Publication number
- JP2781900B2 JP2781900B2 JP9359696A JP9359696A JP2781900B2 JP 2781900 B2 JP2781900 B2 JP 2781900B2 JP 9359696 A JP9359696 A JP 9359696A JP 9359696 A JP9359696 A JP 9359696A JP 2781900 B2 JP2781900 B2 JP 2781900B2
- Authority
- JP
- Japan
- Prior art keywords
- infrared
- infrared detecting
- light
- detection
- detecting means
- 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 - Fee Related
Links
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】この発明は、例えば、建物の
天井や壁面に設置して、その近辺を移動する人間の有無
を検出する場合に使用されるような赤外線検知装置に関
する。
【０００２】
【従来の技術】通常、この種の赤外線検知装置は、赤外
線を集光する集光ミラ―の焦点に、赤外線検出素子を設
置し、この集光ミラ―の視野内に入った人体等の被検知
体から発する赤外線を赤外線検出素子により検出し、そ
の赤外線の変化量で、被検知体の有無を検出する装置が
知られている。
【０００３】ところで、この赤外線検知装置を、天井や
壁面に設置する場合、通路の出入口等の検出すべき特定
位置に赤外線を対応させて設定するが、赤外線は周知の
ごとく不可視光のため、視認して設定することができな
い。そこで、これを確認する手段として、赤外線検出素
子の検出域に可視光線を投光する発光体を設けて、この
可視光線の位置を確認することで、赤外線検出素子の検
出域の確認に代えることができる。しかし、赤外線検出
素子と可視光線の発光体とは、それぞれ機能が異なるの
でそれぞれの機能を充分に生かすために独立的な配置に
すると、構造および組立作業や指向性の調整作業が複雑
となり、その結果、コストが嵩み、また、指向性や確認
精度も低下する問題点となる。
【０００４】
【発明が解決しようとする課題】この発明は、構造およ
び組立作業が簡単であり、しかも、赤外線検出手段と発
光体との指向性の調整作業も簡単であって、検出域の確
認精度も高い赤外線検知装置の提供を目的とする。
【０００５】
【課題を解決するための手段】この発明は、検出域側か
らの赤外線を検出する赤外線検出手段と、上記赤外線検
出手段と対向し、検出域側からの赤外線を集光する集光
手段と、前記赤外線検出手段の検出域を確認するために
検出域側に可視光線を投光する発光体とを備えた赤外線
検知装置であって、前記発光体を赤外線検出手段の外周
部で、かつ、集光手段と対向する位置に配設して、その
可視光線が集光手段を介して検出域側に投光すべく設け
ると共に、該発光体と前記赤外線検出手段とを同一の基
板に搭載した赤外線検知装置であることを特徴とする。
【０００６】さらに、この発明は、前記発光体を、赤外
線検出手段を挟んで一対で形成したり、また、前記発光
体を、赤外線検出手段の外周囲を４分割にした周上に配
設したり、さらに、上記４個の発光体を、前記赤外線検
出手段を挟んで相対向する発光体同士を一対に設定し
て、各対の発光色を色別したりして構成する赤外線検知
装置であることを特徴とする。
【０００７】
【作用】この発明の赤外線検知装置によれば、発光体か
らの可視光線が集光手段を介して被検出位置に投影され
ることで、この投影された可視光線の位置に基づいて赤
外線検出手段の検出域を位置決めすることができる。
【０００８】
【発明の効果】この発明によれば、赤外線検出手段に対
して赤外線を集光する集光手段を介して可視光線を投光
する発光体を設けているので、赤外線検出手段の検出域
と発光体の投光域とを関連付けるための設計上または組
立て調整上の格別の配慮が不要となり、簡単に上記検出
域を示すように上記投光域を設定することができる。
【０００９】加えて、赤外線検出手段と発光体とを同一
の基板上に搭載するので、赤外線検出手段と発光体との
組立や装置の構造が簡単化されて装置が小型コンパクト
に構成でき、さらに赤外線検出手段と発光体との指向調
整も、これらが同一基板上にあるがために簡単化され
て、高精度の指向性および検出域の高い確認精度も得ら
れる。
【００１０】
【実施例】この発明の一実施例を以下図面に基づいて詳
述する。図面は赤外線検知装置を示し、図１〜図３にお
いて、この赤外線検知装置１１は、可視光線を反射投影
し、不可視光線の赤外線を集光する集光ミラ―１２と、
この集光ミラ―１２の焦点に対応して設置される赤外線
検出素子１３と、赤外線検出素子１３を挟む両側に配設
される可視光源のＬＥＤ（発光ダイオ―ド）１４，１４
と、これらを収納保持するケ―ス本体１５とから構成さ
れる。
【００１１】上述の集光ミラ―１２は、円弧形状を有
し、その下端が支持フレ―ム１６を介して角度変位可能
にケ―ス本体１５に支持されると共に、該集光ミラ―１
２の光軸の傾きを調整する光軸調整機構（図外）を介し
てケ―ス本体１５に支持されている。これにより、集光
ミラ―１２は角度変位可能に回動許容されて、そのセッ
ト位置で姿勢保持される。
【００１２】そして、この集光ミラ―１２の内周面には
複数の光軸を受光することのできる多面セグメントの凹
面鏡１７…を備えており、これら凹面鏡１７…は屈折投
影される赤外線の各焦点が赤外線検出素子収納部１８内
の一点に集中するように配置されており、この焦点に前
述の赤外線検出素子１３が配置される。
【００１３】上述の赤外線検出素子１３は、各制御部品
（図外）を搭載した基板１９の中央部上面に搭載され、
この基板１９が前述の赤外線検出素子収納部１８に固定
される。
【００１４】さらに、この基板１９上に搭載された赤外
線検出素子１３の両側には前述のＬＥＤ１４，１４がそ
れぞれ搭載され、上述の赤外線検出素子１３の赤外線検
出域２０と対応して位置決め投影される。この場合、左
右一対のＬＥＤ１４，１４の可視光線投影域２１，２１
間の中央部に赤外線検出域２０が正確に対応して位置す
る。したがって、この可視光線投影域２１に基づいて赤
外線検出域２０を設定すればよく、設定時は常時可視光
線を発光させて赤外線があたかも可視光線であるかのご
とく、視認しながら設定することができる。図中２２は
電源ランプ、２３は保護カバ―である。
【００１５】このように構成された赤外線検知装置は、
先ず、検出すべき特定位置に対応する室内等の天井や壁
面に、この赤外線検知装置１１を設置する。
【００１６】次いで、この装置１１の電源を入力してＬ
ＥＤ１４，１４を発光させ、その発光した可視光線投影
域２１を視認しながら光軸調整機構を介して集光ミラ―
１２の角度を所定の検出すべき対応位置に角度調整した
後、ＬＥＤ１４，１４をＯＦＦすることにより、赤外線
検知装置１１は、所望の検知位置に初期設定される。
【００１７】そして、この赤外線検出域２０に例えば人
が入ってくると、この人体から発する赤外線を集光ミラ
―１２を介して赤外線検出素子１３が検知し、この検知
信号に基づいて、適宜の手段が講じられる。
【００１８】上述の一実施例においては、ＬＥＤ１４を
赤外線検出素子１３の両側に２個配設した例を示した
が、これに限らず、図４および図５に示すように、例え
ば、赤外線検出素子４１の周囲にＬＥＤ４２を四個等分
して配設してもよい。この場合は、赤外線検出域４３に
対して四方から位置決めすることができ、より一層高精
度に設定することができる。また、これらＬＥＤ４２…
に対しては上下・左右側を色別して、設定時の可視光線
をより明確にして使用することもできる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used, for example, in a case where it is installed on a ceiling or a wall of a building to detect the presence or absence of a person moving near the building. Related to a simple infrared detector. 2. Description of the Related Art Normally, this kind of infrared detecting apparatus has an infrared detecting element installed at a focal point of a converging mirror for condensing infrared rays, and a human body entering the field of view of the converging mirror. There is known an apparatus that detects infrared rays emitted from a detection target by an infrared detection element and detects the presence or absence of the detection target based on a change amount of the infrared rays. When this infrared detecting device is installed on a ceiling or a wall, infrared light is set to correspond to a specific position to be detected, such as an entrance of a passage, etc. Can not be set. Therefore, as a means for confirming this, a luminous body that emits visible light is provided in the detection area of the infrared detection element, and the position of this visible light is confirmed, thereby replacing the confirmation of the detection area of the infrared detection element. Can be. However, since the infrared detecting element and the visible light emitter have different functions, if they are arranged independently to make full use of their respective functions, the structure, assembly work and directivity adjustment work become complicated, and As a result, the cost is increased, and the directivity and the confirmation accuracy are reduced. According to the present invention, the structure and the assembling work are simple, the work of adjusting the directivity between the infrared detecting means and the luminous body is also simple, and the detection area is confirmed. It is an object of the present invention to provide a highly accurate infrared detecting device. According to the present invention, there is provided an infrared detecting means for detecting infrared light from a detection area side, and a light condensing means for converging infrared light from the detection area side opposite to the infrared detecting means. and means, in order to confirm the detection zone before the Kiaka outside line detection means
The detection zone side an infrared sensing device that includes a light emitter for projecting visible light, the outer periphery of the infrared detection means the light emitter
And at a position facing the light collecting means,
Provided so that visible light can be projected to the detection area side via the condensing means
In addition, the infrared detector is characterized in that the light emitter and the infrared detector are mounted on the same substrate. Further, according to the present invention, the luminous body may be formed as a pair with an infrared detecting means interposed therebetween, or the luminous body may be arranged on a circumference where an outer periphery of the infrared detecting means is divided into four parts. Or, furthermore, the four light emitters are set as a pair of light emitters opposed to each other with the infrared detecting means interposed therebetween, and an infrared detection device configured to separate the emission colors of each pair by color. There is a feature. According to the infrared detecting device of the present invention, the visible light from the illuminant is projected to the detected position via the light condensing means, and based on the position of the projected visible light. The detection area of the infrared detecting means can be positioned. According to the present invention, since the luminous body for projecting visible light is provided to the infrared detecting means via the condensing means for condensing infrared light, the detection of the infrared detecting means is achieved. It is not necessary to specially consider the design or the assembly adjustment for associating the area with the light emitting area of the light emitter, and the light emitting area can be easily set to indicate the detection area. In addition, since the infrared detecting means and the luminous body are mounted on the same substrate, the assembly of the infrared detecting means and the luminous body and the structure of the apparatus can be simplified, and the apparatus can be made compact and compact. Directional adjustment of the infrared detecting means and the luminous body is also simplified because they are on the same substrate, and high directivity and high confirmation accuracy of the detection area can be obtained. An embodiment of the present invention will be described below in detail with reference to the drawings. The drawings show an infrared detecting device. In FIGS. 1 to 3, the infrared detecting device 11 is a reflecting mirror 12 that reflects and projects visible light and collects infrared light of invisible light.
An infrared detecting element 13 installed corresponding to the focal point of the converging mirror 12 and LEDs (light emitting diodes) 14, 14 of visible light sources arranged on both sides of the infrared detecting element 13.
And a case body 15 for storing and holding these. The above-mentioned condensing mirror 12 has an arc shape, the lower end of which is supported by the case body 15 via a support frame 16 so as to be angularly displaceable.
2 is supported by the case body 15 via an optical axis adjusting mechanism (not shown) for adjusting the inclination of the optical axis. As a result, the condensing mirror 12 is allowed to rotate so as to be angularly displaceable, and is held at the set position. On the inner peripheral surface of the converging mirror 12, there are provided concave mirrors 17 of a polygonal segment capable of receiving a plurality of optical axes. The focal point is arranged so as to be concentrated at one point in the infrared detecting element housing portion 18, and the above-mentioned infrared detecting element 13 is arranged at this focal point. The above-mentioned infrared detecting element 13 is mounted on the upper surface of the central portion of a substrate 19 on which each control component (not shown) is mounted.
This substrate 19 is fixed to the above-mentioned infrared detecting element housing section 18. Further, the above-mentioned LEDs 14, 14 are respectively mounted on both sides of the infrared detecting element 13 mounted on the substrate 19, and are positioned and projected corresponding to the infrared detecting area 20 of the above-mentioned infrared detecting element 13. . In this case, the visible light projection areas 21 and 21 of the pair of left and right LEDs 14 and 14 are provided.
The infrared detection area 20 is located exactly in the center between them. Therefore, the infrared detection area 20 may be set based on the visible light projection area 21. At the time of the setting, the visible light is always emitted and the infrared ray can be set while visually recognizing the infrared light as if it were visible light. . In the figure, reference numeral 22 denotes a power lamp, and reference numeral 23 denotes a protection cover. [0015] The infrared detecting device thus configured is
First, the infrared detecting device 11 is installed on a ceiling or a wall surface of a room or the like corresponding to a specific position to be detected. Next, the power supply of the device 11 is input and L
The EDs 14 and 14 are made to emit light, and while the visible light projected area 21 that has emitted light is visually recognized, a condensing mirror is passed through the optical axis adjustment mechanism.
After the angle of 12 is adjusted to a predetermined corresponding position to be detected, the LEDs 14, 14 are turned off, so that the infrared detecting device 11 is initialized to a desired detecting position. When a person enters the infrared detection area 20, for example, infrared rays emitted from the human body are detected by the infrared detection element 13 via the converging mirror 12, and an appropriate signal is detected based on the detection signal. Measures are taken. In the above-described embodiment, two LEDs 14 are provided on both sides of the infrared detecting element 13. However, the present invention is not limited to this. For example, as shown in FIGS. Four LEDs 42 may be arranged around the element 41 equally. In this case, positioning can be performed from all sides with respect to the infrared detection area 43, and the setting can be made with even higher accuracy. These LEDs 42 ...
, The visible light at the time of setting can be more clearly used.
【図面の簡単な説明】
【図１】 赤外線検知装置の概略説明図。
【図２】 赤外線検知装置の要部拡大斜視図。
【図３】 赤外線検知装置の要部縦断側面図。
【図４】 他の実施例を示す赤外線検知装置の概略説明
図。
【図５】 図４の赤外線検知装置の要部拡大斜視図。
【符号の説明】
１１…赤外線検知装置
１２…集光ミラ―
１３，４１…赤外線検出素子
１４，４２…ＬＥＤ
１７…凹面鏡
２０…赤外線検出域
２１…可視光線投影域
４３…赤外線検出域BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic explanatory diagram of an infrared detection device. FIG. 2 is an enlarged perspective view of a main part of the infrared detection device. FIG. 3 is a vertical sectional side view of a main part of the infrared detecting device. FIG. 4 is a schematic explanatory view of an infrared detection device showing another embodiment. FIG. 5 is an enlarged perspective view of a main part of the infrared detection device of FIG. 4; [Description of Signs] 11 ... Infrared ray detection device 12 ... Condensing mirror 13,41 ... Infrared ray detection element 14,42 ... LED 17 ... Concave mirror 20 ... Infrared ray detection area 21 ... Visible light projection area 43 ... Infrared ray detection area
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G01J 1/02 G01V 9/04──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 6 , DB name) G01J 1/02 G01V 9/04
Claims (1)
と、 上記赤外線検出手段と対向し、検出域側からの赤外線を
集光する集光手段と、 前記赤外線検出手段の検出域を確認するために検出域側
に可視光線を投光する発光体とを備えた赤外線検知装置
であって、前記発光体を赤外線検出手段の外周部で、かつ、集光手
段と対向する位置に配設して、その可視光線が集光手段
を介して検出域側に投光すべく設けると共に、 該発光体と前記赤外線検出手段 とを同一の基板に搭載し
た赤外線検知装置。 ２．前記発光体は赤外線検出手段を挟んで一対で形成し
た請求項１記載の赤外線検知装置。 ３．前記発光体は赤外線検出手段の外周囲を４分割にし
た周上に配設した請求項１記載の赤外線検知装置。 ４．前記発光体は赤外線検出手段の外周囲を４分割にし
た周上に配設すると共に、前記赤外線検出手段を挟んで
相対向する発光体同士を一対に設定して、各対の発光色
を色別した請求項１記載の赤外線検知装置。(57) [Claims] An infrared detector for detecting infrared radiation from the detection zone side, above the infrared detector and the counter, and focusing means for focusing the infrared radiation from the detection zone side, in order to confirm the detection zone before Kiaka external detector an infrared sensing device that includes a light emitter for projecting visible light to detection zone side, the outer peripheral portion of the infrared detection means the light emitter and Atsumarikote
Arranged at a position facing the step, the visible light is focused
An infrared detecting device provided so as to project light to a detection area side through the light emitting device, and the light emitting body and the infrared detecting means are mounted on the same substrate. 2. 2. The infrared detecting device according to claim 1, wherein the luminous body is formed as a pair with an infrared detecting means interposed therebetween. 3. 2. The infrared detecting device according to claim 1, wherein the illuminant is disposed on a circumference obtained by dividing an outer periphery of the infrared detecting means into four parts. 4. The luminous bodies are arranged on the circumference where the outer periphery of the infrared detecting means is divided into four parts, and the luminous bodies opposed to each other across the infrared detecting means are set as a pair, and the emission color of each pair is colored. The infrared detecting device according to claim 1, which is separate from the infrared detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9359696A JP2781900B2 (en) | 1996-03-21 | 1996-03-21 | Infrared detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9359696A JP2781900B2 (en) | 1996-03-21 | 1996-03-21 | Infrared detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08254461A JPH08254461A (en) | 1996-10-01 |
| JP2781900B2 true JP2781900B2 (en) | 1998-07-30 |
Family
ID=14086701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9359696A Expired - Fee Related JP2781900B2 (en) | 1996-03-21 | 1996-03-21 | Infrared detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2781900B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009086729A (en) * | 2007-09-27 | 2009-04-23 | Sogo Keibi Hosho Co Ltd | Monitoring system, security device, sensor and monitoring method |
| DE102011076420A1 (en) * | 2011-05-24 | 2012-11-29 | Excelitas Technologies Gmbh & Co. Kg | Radiation detection device, circuit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574524A (en) * | 1980-06-10 | 1982-01-11 | Toshiba Corp | Reflex-type photodetector |
| JPS5722521A (en) * | 1980-07-15 | 1982-02-05 | Horiba Ltd | Confirming method for radiation or irradiated area |
| JPS5841332A (en) * | 1981-09-04 | 1983-03-10 | Matsushita Electric Works Ltd | Detecting direction indicating structure for thermal detector |
-
1996
- 1996-03-21 JP JP9359696A patent/JP2781900B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08254461A (en) | 1996-10-01 |
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