JPS6349822Y2 - - Google Patents
Info
- Publication number
- JPS6349822Y2 JPS6349822Y2 JP20388283U JP20388283U JPS6349822Y2 JP S6349822 Y2 JPS6349822 Y2 JP S6349822Y2 JP 20388283 U JP20388283 U JP 20388283U JP 20388283 U JP20388283 U JP 20388283U JP S6349822 Y2 JPS6349822 Y2 JP S6349822Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- smoke
- emitting element
- filter
- receiving element
- 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.)
- Expired
Links
- 239000000779 smoke Substances 0.000 claims description 51
- 238000001514 detection method Methods 0.000 claims description 45
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect 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 |
|---|---|---|---|
| JP20388283U JPS60109189U (ja) | 1983-12-26 | 1983-12-26 | 散乱光式煙感知器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20388283U JPS60109189U (ja) | 1983-12-26 | 1983-12-26 | 散乱光式煙感知器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60109189U JPS60109189U (ja) | 1985-07-24 |
| JPS6349822Y2 true JPS6349822Y2 (enrdf_load_stackoverflow) | 1988-12-21 |
Family
ID=30766287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20388283U Granted JPS60109189U (ja) | 1983-12-26 | 1983-12-26 | 散乱光式煙感知器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60109189U (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4531357B2 (ja) * | 2003-07-04 | 2010-08-25 | 株式会社リコー | 光学センサ及び画像形成装置 |
-
1983
- 1983-12-26 JP JP20388283U patent/JPS60109189U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60109189U (ja) | 1985-07-24 |
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