JPS5988797U - photoelectric smoke detector - Google Patents
photoelectric smoke detectorInfo
- Publication number
- JPS5988797U JPS5988797U JP18243282U JP18243282U JPS5988797U JP S5988797 U JPS5988797 U JP S5988797U JP 18243282 U JP18243282 U JP 18243282U JP 18243282 U JP18243282 U JP 18243282U JP S5988797 U JPS5988797 U JP S5988797U
- Authority
- JP
- Japan
- Prior art keywords
- light
- smoke detector
- light emitting
- smoke
- photoelectric smoke
- 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
Landscapes
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の光電式煙感知器の実施例、第２図はこの
考案の光電式煙感知器の一実施例、第３図はこの考案の
要部の他の一実施例をそれぞれ示す図である。
１・・・・・・第１の発光素子、２・・・・・・第２の
発光素子、５・・・・・・煙監視空間、ＰＤ・・・・・
・受光素子、６・・・・・・常開スイッチング素子。Figure 1 shows an example of a conventional photoelectric smoke detector, Figure 2 shows an example of the photoelectric smoke detector of this invention, and Figure 3 shows another example of the main part of this invention. It is a diagram. 1...First light emitting element, 2...Second light emitting element, 5...Smoke monitoring space, PD...
- Light receiving element, 6... Normally open switching element.
Claims (1)
上記光の煙による散乱あるいは透過光を検出する受光素
子と、該受光素子の出力に基づき導通ずる常開スイッチ
ング素子とを具備した煙感知器において、上記第１の発
光素子を点灯させる電路中に可視光を発光する第２の発
光ダイオードを設け、かつ上記スイッチング素子を上記
第２の発光ダイオードと直列に接続した点を特徴とする
光電式煙感知器。a first light emitting element that intermittently irradiates light into the smoke monitoring space;
In a smoke detector comprising a light receiving element that detects the light scattered by smoke or transmitted light, and a normally open switching element that conducts based on the output of the light receiving element, an electrical circuit for lighting the first light emitting element is provided. A photoelectric smoke detector characterized in that a second light emitting diode that emits visible light is provided, and the switching element is connected in series with the second light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18243282U JPS5988797U (en) | 1982-12-03 | 1982-12-03 | photoelectric smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18243282U JPS5988797U (en) | 1982-12-03 | 1982-12-03 | photoelectric smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5988797U true JPS5988797U (en) | 1984-06-15 |
| JPS6343591Y2 JPS6343591Y2 (en) | 1988-11-14 |
Family
ID=30395080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18243282U Granted JPS5988797U (en) | 1982-12-03 | 1982-12-03 | photoelectric smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5988797U (en) |
-
1982
- 1982-12-03 JP JP18243282U patent/JPS5988797U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6343591Y2 (en) | 1988-11-14 |
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