JPS622526Y2 - - Google Patents
Info
- Publication number
- JPS622526Y2 JPS622526Y2 JP1981161635U JP16163581U JPS622526Y2 JP S622526 Y2 JPS622526 Y2 JP S622526Y2 JP 1981161635 U JP1981161635 U JP 1981161635U JP 16163581 U JP16163581 U JP 16163581U JP S622526 Y2 JPS622526 Y2 JP S622526Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- road surface
- light receiving
- light beam
- detection device
- 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
- 238000001514 detection method Methods 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981161635U JPS622526Y2 (US20020051482A1-20020502-M00012.png) | 1981-10-29 | 1981-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981161635U JPS622526Y2 (US20020051482A1-20020502-M00012.png) | 1981-10-29 | 1981-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5794846U JPS5794846U (US20020051482A1-20020502-M00012.png) | 1982-06-11 |
| JPS622526Y2 true JPS622526Y2 (US20020051482A1-20020502-M00012.png) | 1987-01-21 |
Family
ID=29520528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981161635U Expired JPS622526Y2 (US20020051482A1-20020502-M00012.png) | 1981-10-29 | 1981-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622526Y2 (US20020051482A1-20020502-M00012.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5081661B2 (ja) * | 2008-02-19 | 2012-11-28 | 株式会社Ｉｈｉ | 水溜まり検出装置、無人走行車両及び水溜まり検出方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5195883A (US20020051482A1-20020502-M00012.png) * | 1975-02-20 | 1976-08-23 |
-
1981
- 1981-10-29 JP JP1981161635U patent/JPS622526Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5195883A (US20020051482A1-20020502-M00012.png) * | 1975-02-20 | 1976-08-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5794846U (US20020051482A1-20020502-M00012.png) | 1982-06-11 |
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