JPS5365696A - Smoke sensor of scattering light system - Google Patents
Smoke sensor of scattering light systemInfo
- Publication number
- JPS5365696A JPS5365696A JP14155276A JP14155276A JPS5365696A JP S5365696 A JPS5365696 A JP S5365696A JP 14155276 A JP14155276 A JP 14155276A JP 14155276 A JP14155276 A JP 14155276A JP S5365696 A JPS5365696 A JP S5365696A
- Authority
- JP
- Japan
- Prior art keywords
- light system
- smoke sensor
- scattering light
- smoke
- giving
- 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
Abstract
PURPOSE: To ensure a smoke sensing with no effect of black and white of the smoke by setting the scattering angle to 90° or less and also giving an intermittent light emission to the light emitting element.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14155276A JPS5365696A (en) | 1976-11-24 | 1976-11-24 | Smoke sensor of scattering light system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14155276A JPS5365696A (en) | 1976-11-24 | 1976-11-24 | Smoke sensor of scattering light system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5365696A true JPS5365696A (en) | 1978-06-12 |
Family
ID=15294609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14155276A Pending JPS5365696A (en) | 1976-11-24 | 1976-11-24 | Smoke sensor of scattering light system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5365696A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59221640A (en) * | 1983-05-31 | 1984-12-13 | Matsushita Electric Works Ltd | Smoke sensor |
US5587790A (en) * | 1993-09-07 | 1996-12-24 | Hochiki Corporation | Light scattering type smoke detector having an improved zero-point level |
GB2401936A (en) * | 2003-05-23 | 2004-11-24 | Apollo Fire Detectors Ltd | Light sensor for smoke detector |
-
1976
- 1976-11-24 JP JP14155276A patent/JPS5365696A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59221640A (en) * | 1983-05-31 | 1984-12-13 | Matsushita Electric Works Ltd | Smoke sensor |
US5587790A (en) * | 1993-09-07 | 1996-12-24 | Hochiki Corporation | Light scattering type smoke detector having an improved zero-point level |
GB2401936A (en) * | 2003-05-23 | 2004-11-24 | Apollo Fire Detectors Ltd | Light sensor for smoke detector |
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