JPH0259448U - - Google Patents
Info
- Publication number
- JPH0259448U JPH0259448U JP13847288U JP13847288U JPH0259448U JP H0259448 U JPH0259448 U JP H0259448U JP 13847288 U JP13847288 U JP 13847288U JP 13847288 U JP13847288 U JP 13847288U JP H0259448 U JPH0259448 U JP H0259448U
- Authority
- JP
- Japan
- Prior art keywords
- infrared
- infrared detection
- detection device
- case body
- entrance window
- 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
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
第１図は赤外線式移動人体検出装置に適用した
場合の本考案の一実施例の概略縦断面図、第２図
は第１図の電気回路図、第３図は第１図の外部光
学フイルタと従来の赤外線検出器の光学フイルタ
との外乱光による照射面積の比較を示す説明図、
第４図は第１図の光学フイルタのフイルタ面と赤
外線検出素子との距離と出力電圧との関係を示す
検出感度特性図、第５図は第１図の装置と従来赤
外線検出器との二次的熱放射における各赤外線検
出素子への拡がり角度の比較を示す説明図である
。
２ａ，２ｂ……赤外線検出素子、７……ケース
体、７ａ……光入射窓、９……保護体、９ａ……
開口部、１０……光学フイルタ。
Fig. 1 is a schematic vertical sectional view of an embodiment of the present invention when applied to an infrared moving human body detection device, Fig. 2 is an electric circuit diagram of Fig. 1, and Fig. 3 is an external optical filter of Fig. 1. An explanatory diagram showing a comparison of the irradiation area due to disturbance light and the optical filter of a conventional infrared detector,
Fig. 4 is a detection sensitivity characteristic diagram showing the relationship between the distance between the filter surface of the optical filter of Fig. 1 and the infrared detection element and the output voltage, and Fig. 5 shows the relationship between the device shown in Fig. 1 and a conventional infrared detector. FIG. 3 is an explanatory diagram showing a comparison of spread angles to each infrared detection element in secondary heat radiation. 2a, 2b...Infrared detection element, 7...Case body, 7a...Light entrance window, 9...Protection body, 9a...
Aperture, 10...optical filter.
Claims (1)
赤外線検出素子が設けられ、前記赤外線検出素子
により前記光入射窓から入射する赤外線光束をそ
の変動量に応じた電気信号に変換するようになつ
た赤外線検出器を備えた赤外線検出装置において
、前記赤外線検出器が、前記ケース体の構成素材
とは異なる素材により開口部を有する形状となつ
た保護体で被覆され、且つ前記開口部が前記光入
射窓に対向され、該開口部に封着された前記光学
フイルタが、これのフイルタ面と前記赤外線検出
素子との間隔が２mm以上となるよう位置されてな
ることを特徴とする赤外線検出装置。 (2) 前記保護体が、高分子素材により筒状に構
成されて前記ケース体に外嵌されたことを特徴と
する請求項(1)に記載の赤外線検出装置。 (3) 前記ケース体が金属である場合に、前記保
護体が電気絶縁性素材により構成されたことを特
徴とする請求項(1)に記載の赤外線検出装置。 (4) 前記ケース体が合成樹脂である場合に、前
記保護体が難燃性素材または不燃性素材により構
成されたことを特徴とする請求項(1)に記載の赤
外線検出装置。[Claims for Utility Model Registration] (1) An infrared detection element is provided in the case body opposite to the light entrance window of the case, and the infrared detection element detects the amount of variation in the infrared light flux incident from the light entrance window. In the infrared detection device equipped with an infrared detector that converts the infrared detector into an electric signal corresponding to the specified temperature, the infrared detector is formed of a protective body having an opening made of a material different from that of the case body. The optical filter is coated and the opening faces the light entrance window, and the optical filter is sealed to the opening and is positioned such that the distance between the filter surface and the infrared detecting element is 2 mm or more. An infrared detection device characterized by: (2) The infrared detection device according to claim (1), wherein the protector is made of a polymeric material and has a cylindrical shape and is fitted onto the case body. (3) The infrared detection device according to claim (1), wherein when the case body is made of metal, the protector is made of an electrically insulating material. (4) The infrared detection device according to claim (1), wherein when the case body is made of synthetic resin, the protective body is made of a flame-retardant material or a non-combustible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13847288U JPH0259448U (en) | 1988-10-24 | 1988-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13847288U JPH0259448U (en) | 1988-10-24 | 1988-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0259448U true JPH0259448U (en) | 1990-05-01 |
Family
ID=31400843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13847288U Pending JPH0259448U (en) | 1988-10-24 | 1988-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0259448U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197725A (en) * | 1986-02-25 | 1987-09-01 | Matsushita Electric Works Ltd | Heat ray detector |
-
1988
- 1988-10-24 JP JP13847288U patent/JPH0259448U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197725A (en) * | 1986-02-25 | 1987-09-01 | Matsushita Electric Works Ltd | Heat ray detector |
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