JPS6438555U - - Google Patents
Info
- Publication number
- JPS6438555U JPS6438555U JP13415287U JP13415287U JPS6438555U JP S6438555 U JPS6438555 U JP S6438555U JP 13415287 U JP13415287 U JP 13415287U JP 13415287 U JP13415287 U JP 13415287U JP S6438555 U JPS6438555 U JP S6438555U
- Authority
- JP
- Japan
- Prior art keywords
- light
- detection unit
- optical fiber
- detects
- face
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000000253 optical time-domain reflectometry Methods 0.000 description 1
Landscapes
- Optical Transform (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13415287U JPS6438555U (enExample) | 1987-09-02 | 1987-09-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13415287U JPS6438555U (enExample) | 1987-09-02 | 1987-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6438555U true JPS6438555U (enExample) | 1989-03-08 |
Family
ID=31392647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13415287U Pending JPS6438555U (enExample) | 1987-09-02 | 1987-09-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6438555U (enExample) |
-
1987
- 1987-09-02 JP JP13415287U patent/JPS6438555U/ja active Pending