JPH0119199B2 - - Google Patents
Info
- Publication number
- JPH0119199B2 JPH0119199B2 JP55155713A JP15571380A JPH0119199B2 JP H0119199 B2 JPH0119199 B2 JP H0119199B2 JP 55155713 A JP55155713 A JP 55155713A JP 15571380 A JP15571380 A JP 15571380A JP H0119199 B2 JPH0119199 B2 JP H0119199B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- section
- light receiving
- emitting element
- output
- 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.)
- Expired
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15571380A JPS5779597A (en) | 1980-10-31 | 1980-10-31 | Photoelectric smoke sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15571380A JPS5779597A (en) | 1980-10-31 | 1980-10-31 | Photoelectric smoke sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5779597A JPS5779597A (en) | 1982-05-18 |
JPH0119199B2 true JPH0119199B2 (enrdf_load_stackoverflow) | 1989-04-10 |
Family
ID=15611863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15571380A Granted JPS5779597A (en) | 1980-10-31 | 1980-10-31 | Photoelectric smoke sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5779597A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03245296A (ja) * | 1990-02-23 | 1991-10-31 | Oki Denki Bosai Kk | 煙感知器の試験方法及び煙感知器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5389484A (en) * | 1977-01-18 | 1978-08-07 | Toshiba Electric Equip | Photo detector |
JPS5643732Y2 (enrdf_load_stackoverflow) * | 1977-08-05 | 1981-10-13 |
-
1980
- 1980-10-31 JP JP15571380A patent/JPS5779597A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5779597A (en) | 1982-05-18 |
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