JPS5382199A - Scattered light type smoke detector - Google Patents
Scattered light type smoke detectorInfo
- Publication number
- JPS5382199A JPS5382199A JP15915976A JP15915976A JPS5382199A JP S5382199 A JPS5382199 A JP S5382199A JP 15915976 A JP15915976 A JP 15915976A JP 15915976 A JP15915976 A JP 15915976A JP S5382199 A JPS5382199 A JP S5382199A
- Authority
- JP
- Japan
- Prior art keywords
- scattered light
- smoke detector
- light type
- type smoke
- dark box
- 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
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
PURPOSE: To reduce the quantity of radiation to a photo detector when no smoke exists in a dark box and enhance the stability and reliability of operation by providing recurrent reflection layers on the surface of the air permeable dark box.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15915976A JPS5382199A (en) | 1976-12-27 | 1976-12-27 | Scattered light type smoke detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15915976A JPS5382199A (en) | 1976-12-27 | 1976-12-27 | Scattered light type smoke detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5382199A true JPS5382199A (en) | 1978-07-20 |
Family
ID=15687546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15915976A Pending JPS5382199A (en) | 1976-12-27 | 1976-12-27 | Scattered light type smoke detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5382199A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7167099B2 (en) | 1999-12-08 | 2007-01-23 | Gentex Corporation | Compact particle sensor |
JP2012145528A (en) * | 2011-01-14 | 2012-08-02 | Mitsubishi Electric Corp | Resin type identification device |
-
1976
- 1976-12-27 JP JP15915976A patent/JPS5382199A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7167099B2 (en) | 1999-12-08 | 2007-01-23 | Gentex Corporation | Compact particle sensor |
JP2012145528A (en) * | 2011-01-14 | 2012-08-02 | Mitsubishi Electric Corp | Resin type identification device |
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