JPS5413391A - Smoke sensor - Google Patents
Smoke sensorInfo
- Publication number
- JPS5413391A JPS5413391A JP7879977A JP7879977A JPS5413391A JP S5413391 A JPS5413391 A JP S5413391A JP 7879977 A JP7879977 A JP 7879977A JP 7879977 A JP7879977 A JP 7879977A JP S5413391 A JPS5413391 A JP S5413391A
- Authority
- JP
- Japan
- Prior art keywords
- area
- smoke sensor
- light
- smoke
- reflecting
- 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
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
PURPOSE:To make it possible to shorten the response time for a smoke flow by providing a reflecting mirror in a light emitting area so that an enlarged smoke sensitive area may be formed at the intersecting portion between of a light reflecting area and a light receiving area.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7879977A JPS5413391A (en) | 1977-06-30 | 1977-06-30 | Smoke sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7879977A JPS5413391A (en) | 1977-06-30 | 1977-06-30 | Smoke sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5413391A true JPS5413391A (en) | 1979-01-31 |
Family
ID=13671900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7879977A Pending JPS5413391A (en) | 1977-06-30 | 1977-06-30 | Smoke sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5413391A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5023261A (en) * | 1988-08-30 | 1991-06-11 | Kissei Pharmaceutical Co., Ltd. | Acylated benzofuro[3,2-c]quinoline compounds with utility as treatments for osteoporosis |
EP0588232A1 (en) * | 1992-09-14 | 1994-03-23 | Cerberus Ag | Optic smoke detector |
-
1977
- 1977-06-30 JP JP7879977A patent/JPS5413391A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5023261A (en) * | 1988-08-30 | 1991-06-11 | Kissei Pharmaceutical Co., Ltd. | Acylated benzofuro[3,2-c]quinoline compounds with utility as treatments for osteoporosis |
EP0588232A1 (en) * | 1992-09-14 | 1994-03-23 | Cerberus Ag | Optic smoke detector |
US5451931A (en) * | 1992-09-14 | 1995-09-19 | Cerberus Ag | Optical smoke detector |
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