JPH03110393U - - Google Patents
Info
- Publication number
- JPH03110393U JPH03110393U JP1887690U JP1887690U JPH03110393U JP H03110393 U JPH03110393 U JP H03110393U JP 1887690 U JP1887690 U JP 1887690U JP 1887690 U JP1887690 U JP 1887690U JP H03110393 U JPH03110393 U JP H03110393U
- Authority
- JP
- Japan
- Prior art keywords
- light
- passage groove
- transparent tube
- passage
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
Landscapes
- Geophysics And Detection Of Objects (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1887690U JPH03110393U (en]) | 1990-02-28 | 1990-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1887690U JPH03110393U (en]) | 1990-02-28 | 1990-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03110393U true JPH03110393U (en]) | 1991-11-12 |
Family
ID=31522018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1887690U Pending JPH03110393U (en]) | 1990-02-28 | 1990-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03110393U (en]) |
-
1990
- 1990-02-28 JP JP1887690U patent/JPH03110393U/ja active Pending