JPH0432061U - - Google Patents
Info
- Publication number
- JPH0432061U JPH0432061U JP7449190U JP7449190U JPH0432061U JP H0432061 U JPH0432061 U JP H0432061U JP 7449190 U JP7449190 U JP 7449190U JP 7449190 U JP7449190 U JP 7449190U JP H0432061 U JPH0432061 U JP H0432061U
- Authority
- JP
- Japan
- Prior art keywords
- light
- space
- detected
- receiving element
- dust
- 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
- 239000000428 dust Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7449190U JPH0432061U (de) | 1990-07-13 | 1990-07-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7449190U JPH0432061U (de) | 1990-07-13 | 1990-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0432061U true JPH0432061U (de) | 1992-03-16 |
Family
ID=31614227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7449190U Pending JPH0432061U (de) | 1990-07-13 | 1990-07-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432061U (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329697A (en) * | 1976-08-31 | 1978-03-20 | Matsushita Electric Works Ltd | Scattering light system smoke detector |
-
1990
- 1990-07-13 JP JP7449190U patent/JPH0432061U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329697A (en) * | 1976-08-31 | 1978-03-20 | Matsushita Electric Works Ltd | Scattering light system smoke detector |
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