JPS63143996U - - Google Patents
Info
- Publication number
- JPS63143996U JPS63143996U JP2890188U JP2890188U JPS63143996U JP S63143996 U JPS63143996 U JP S63143996U JP 2890188 U JP2890188 U JP 2890188U JP 2890188 U JP2890188 U JP 2890188U JP S63143996 U JPS63143996 U JP S63143996U
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitter
- receiver
- irradiates
- collects
- 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
- 239000000779 smoke Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988028901U JPH0142229Y2 (en]) | 1988-03-03 | 1988-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988028901U JPH0142229Y2 (en]) | 1988-03-03 | 1988-03-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63143996U true JPS63143996U (en]) | 1988-09-21 |
| JPH0142229Y2 JPH0142229Y2 (en]) | 1989-12-11 |
Family
ID=30832295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988028901U Expired JPH0142229Y2 (en]) | 1988-03-03 | 1988-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0142229Y2 (en]) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4858080U (en]) * | 1971-11-08 | 1973-07-24 | ||
| JPS5318179U (en]) * | 1976-07-27 | 1978-02-16 |
-
1988
- 1988-03-03 JP JP1988028901U patent/JPH0142229Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4858080U (en]) * | 1971-11-08 | 1973-07-24 | ||
| JPS5318179U (en]) * | 1976-07-27 | 1978-02-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0142229Y2 (en]) | 1989-12-11 |