JPS61144441U - - Google Patents
Info
- Publication number
- JPS61144441U JPS61144441U JP2844585U JP2844585U JPS61144441U JP S61144441 U JPS61144441 U JP S61144441U JP 2844585 U JP2844585 U JP 2844585U JP 2844585 U JP2844585 U JP 2844585U JP S61144441 U JPS61144441 U JP S61144441U
- Authority
- JP
- Japan
- Prior art keywords
- infrared
- condensing mirror
- condensing
- mirror
- focal point
- 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
- 238000001514 detection method Methods 0.000 claims description 13
- 239000013013 elastic material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例に係わる受動型赤外
線検出装置を示す横断面図、第２図は同実施例の
縦断面図、第３図は同実施例の動作を示す切欠横
断面図、第４図は本考案の他の実施例に係わる受
動型赤外線検出装置を示す切欠横断面図、第５図
は本考案のさらに別の実施例に係わる受動型赤外
線検出装置を示す切欠横断面図、第６図は従来の
受動型赤外線検出装置を示す縦断面図、第７図は
赤外線検出センサの原理を説明するための図、第
８図は受動型赤外線検出装置を示すブロツク図、
第９図は従来の別の受動型赤外線検出装置を示す
断面図である。
１４……増幅器、１５……比較器、１６……リ
レー、１７……負荷装置（外部負荷）、１８，２
０……遮蔽板、２１……筐体、２２……カバー、
２３……赤外光線、２４，４２……集光用鏡、２
７……赤外線検出センサ、２８……配線基板、２
９……固定枠、３０，４１ａ，４１ｂ，４４……
調節ネジ、３１……押当板、３２……貫通孔、３
３……検出回路、３５……ケーブル、θＭ……最
大入射角度。
Fig. 1 is a cross-sectional view showing a passive infrared detection device according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the same embodiment, and Fig. 3 is a cutaway cross-sectional view showing the operation of the embodiment. , FIG. 4 is a cutaway cross-sectional view showing a passive infrared detecting device according to another embodiment of the present invention, and FIG. 5 is a cutaway cross-sectional view showing a passive infrared detecting device according to yet another embodiment of the present invention. 6 is a longitudinal sectional view showing a conventional passive infrared detection device, FIG. 7 is a diagram for explaining the principle of an infrared detection sensor, and FIG. 8 is a block diagram showing a passive infrared detection device.
FIG. 9 is a sectional view showing another conventional passive infrared detection device. 14...Amplifier, 15...Comparator, 16...Relay, 17...Load device (external load), 18,2
0... Shielding plate, 21... Housing, 22... Cover,
23... Infrared ray, 24, 42... Focusing mirror, 2
7... Infrared detection sensor, 28... Wiring board, 2
9...Fixed frame, 30, 41a, 41b, 44...
Adjustment screw, 31... Pressing plate, 32... Through hole, 3
3...Detection circuit, 35...Cable, θM...Maximum incident angle.
Claims (1)
れた赤外光線を焦点に集光させる集光用鏡と、こ
の集光用鏡の前記焦点近傍位置に配設された赤外
線検出センサと、この赤外線検出センサの出力信
号を外部負荷へ検出信号として送出する検出回路
と、前記集光用鏡の裏面側に設けられ、前記集光
用鏡の端部を前記赤外線入力側方向へ押して前記
集光用鏡を弾性変形させて、前記集光用鏡におけ
る反射面の曲率を調整する曲率調整機構とを具備
したことを特徴とする受動型赤外線検出装置。 a condensing mirror formed in a parabolic shape from an elastic material and condensing infrared rays input from the outside to a focal point; an infrared detection sensor disposed at a position near the focal point of the condensing mirror; A detection circuit that sends the output signal of the infrared detection sensor to an external load as a detection signal, and a detection circuit that is provided on the back side of the condensing mirror and pushes the end of the condensing mirror toward the infrared input side to condense the infrared rays. A passive infrared detection device comprising: a curvature adjustment mechanism that elastically deforms a light mirror to adjust the curvature of a reflective surface of the condensing mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2844585U JPH0435774Y2 (en) | 1985-02-28 | 1985-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2844585U JPH0435774Y2 (en) | 1985-02-28 | 1985-02-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61144441U true JPS61144441U (en) | 1986-09-06 |
| JPH0435774Y2 JPH0435774Y2 (en) | 1992-08-25 |
Family
ID=30526322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2844585U Expired JPH0435774Y2 (en) | 1985-02-28 | 1985-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0435774Y2 (en) |
-
1985
- 1985-02-28 JP JP2844585U patent/JPH0435774Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435774Y2 (en) | 1992-08-25 |
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