JPS5362500A - Photoelectric type smoke detector - Google Patents
Photoelectric type smoke detectorInfo
- Publication number
- JPS5362500A JPS5362500A JP13805376A JP13805376A JPS5362500A JP S5362500 A JPS5362500 A JP S5362500A JP 13805376 A JP13805376 A JP 13805376A JP 13805376 A JP13805376 A JP 13805376A JP S5362500 A JPS5362500 A JP S5362500A
- Authority
- JP
- Japan
- Prior art keywords
- smoke detector
- type smoke
- photoelectric type
- photo detector
- receiver
- 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.)
- Granted
Links
Abstract
PURPOSE: To eliminate the effects of external noises by so disposing a projector and a receiver that their optical axes are not positioned in alignment, integrating the photo detector and amplifier circuit of said receiver part and accommodating the assembly into a shield case having a diaphragm hole at the front of the photo detector.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13805376A JPS5362500A (en) | 1976-11-16 | 1976-11-16 | Photoelectric type smoke detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13805376A JPS5362500A (en) | 1976-11-16 | 1976-11-16 | Photoelectric type smoke detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5362500A true JPS5362500A (en) | 1978-06-03 |
JPS5729757B2 JPS5729757B2 (en) | 1982-06-24 |
Family
ID=15212876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13805376A Granted JPS5362500A (en) | 1976-11-16 | 1976-11-16 | Photoelectric type smoke detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5362500A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59138938A (en) * | 1983-01-31 | 1984-08-09 | Matsushita Electric Works Ltd | Smoke detector |
-
1976
- 1976-11-16 JP JP13805376A patent/JPS5362500A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59138938A (en) * | 1983-01-31 | 1984-08-09 | Matsushita Electric Works Ltd | Smoke detector |
JPH0153740B2 (en) * | 1983-01-31 | 1989-11-15 | Matsushita Electric Works Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS5729757B2 (en) | 1982-06-24 |
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