JPH0542560Y2 - - Google Patents
Info
- Publication number
- JPH0542560Y2 JPH0542560Y2 JP1984077367U JP7736784U JPH0542560Y2 JP H0542560 Y2 JPH0542560 Y2 JP H0542560Y2 JP 1984077367 U JP1984077367 U JP 1984077367U JP 7736784 U JP7736784 U JP 7736784U JP H0542560 Y2 JPH0542560 Y2 JP H0542560Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- output
- receiving element
- reference voltage
- light receiving
- 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 - Lifetime
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7736784U JPS60192091U (ja) | 1984-05-25 | 1984-05-25 | 減光式煙感知器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7736784U JPS60192091U (ja) | 1984-05-25 | 1984-05-25 | 減光式煙感知器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60192091U JPS60192091U (ja) | 1985-12-20 |
JPH0542560Y2 true JPH0542560Y2 (en]) | 1993-10-26 |
Family
ID=30620372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7736784U Granted JPS60192091U (ja) | 1984-05-25 | 1984-05-25 | 減光式煙感知器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60192091U (en]) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5127379A (ja) * | 1974-08-30 | 1976-03-06 | Nippon Signal Co Ltd | Kemurikanchiki |
JPS53145498A (en) * | 1977-05-24 | 1978-12-18 | Hochiki Co | Method of preventing wrong operation of reception transmission alarm |
JPS5631625A (en) * | 1979-08-24 | 1981-03-31 | Hochiki Corp | Smoke detector of photoelectronic type |
JPS5839552U (ja) * | 1981-09-10 | 1983-03-15 | 能美防災工業株式会社 | 減光式煙感知器の投光部 |
JPS58218640A (ja) * | 1982-06-14 | 1983-12-19 | Seikosha Co Ltd | 煙検知装置 |
-
1984
- 1984-05-25 JP JP7736784U patent/JPS60192091U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60192091U (ja) | 1985-12-20 |
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