JPH0432062U - - Google Patents
Info
- Publication number
- JPH0432062U JPH0432062U JP7449290U JP7449290U JPH0432062U JP H0432062 U JPH0432062 U JP H0432062U JP 7449290 U JP7449290 U JP 7449290U JP 7449290 U JP7449290 U JP 7449290U JP H0432062 U JPH0432062 U JP H0432062U
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting element
- receiving element
- detected
- space
- 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
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7449290U JP2505282Y2 (ja) | 1990-07-13 | 1990-07-13 | 光学式粉塵センサ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7449290U JP2505282Y2 (ja) | 1990-07-13 | 1990-07-13 | 光学式粉塵センサ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0432062U true JPH0432062U (de) | 1992-03-16 |
| JP2505282Y2 JP2505282Y2 (ja) | 1996-07-24 |
Family
ID=31614229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7449290U Expired - Fee Related JP2505282Y2 (ja) | 1990-07-13 | 1990-07-13 | 光学式粉塵センサ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505282Y2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102490311B1 (ko) * | 2018-04-25 | 2023-01-20 | 주식회사 히타치엘지 데이터 스토리지 코리아 | 먼지 센서 |
-
1990
- 1990-07-13 JP JP7449290U patent/JP2505282Y2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2505282Y2 (ja) | 1996-07-24 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |