JPH0196091U - - Google Patents
Info
- Publication number
- JPH0196091U JPH0196091U JP18942687U JP18942687U JPH0196091U JP H0196091 U JPH0196091 U JP H0196091U JP 18942687 U JP18942687 U JP 18942687U JP 18942687 U JP18942687 U JP 18942687U JP H0196091 U JPH0196091 U JP H0196091U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- light
- receiver
- dark box
- smoke detector
- 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
- 239000000779 smoke Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
Landscapes
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18942687U JPH0196091U (de) | 1987-12-15 | 1987-12-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18942687U JPH0196091U (de) | 1987-12-15 | 1987-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0196091U true JPH0196091U (de) | 1989-06-26 |
Family
ID=31480456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18942687U Pending JPH0196091U (de) | 1987-12-15 | 1987-12-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0196091U (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56147294A (en) * | 1980-04-15 | 1981-11-16 | Matsushita Electric Works Ltd | Optical system for smoke sensor |
-
1987
- 1987-12-15 JP JP18942687U patent/JPH0196091U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56147294A (en) * | 1980-04-15 | 1981-11-16 | Matsushita Electric Works Ltd | Optical system for smoke sensor |