JPS6457591U - - Google Patents
Info
- Publication number
- JPS6457591U JPS6457591U JP15340287U JP15340287U JPS6457591U JP S6457591 U JPS6457591 U JP S6457591U JP 15340287 U JP15340287 U JP 15340287U JP 15340287 U JP15340287 U JP 15340287U JP S6457591 U JPS6457591 U JP S6457591U
- Authority
- JP
- Japan
- Prior art keywords
- light
- outputs
- emitting element
- receiving element
- detection signal
- 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
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15340287U JPS6457591U (cs) | 1987-10-06 | 1987-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15340287U JPS6457591U (cs) | 1987-10-06 | 1987-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6457591U true JPS6457591U (cs) | 1989-04-10 |
Family
ID=31429208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15340287U Pending JPS6457591U (cs) | 1987-10-06 | 1987-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6457591U (cs) |
-
1987
- 1987-10-06 JP JP15340287U patent/JPS6457591U/ja active Pending