JPH01180687U - - Google Patents
Info
- Publication number
- JPH01180687U JPH01180687U JP7190688U JP7190688U JPH01180687U JP H01180687 U JPH01180687 U JP H01180687U JP 7190688 U JP7190688 U JP 7190688U JP 7190688 U JP7190688 U JP 7190688U JP H01180687 U JPH01180687 U JP H01180687U
- Authority
- JP
- Japan
- Prior art keywords
- light
- electrical signal
- light emitting
- lens
- light receiving
- 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 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000004092 self-diagnosis Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Geophysics And Detection Of Objects (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7190688U JPH01180687U (en]) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7190688U JPH01180687U (en]) | 1988-05-30 | 1988-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01180687U true JPH01180687U (en]) | 1989-12-26 |
Family
ID=31297093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7190688U Pending JPH01180687U (en]) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01180687U (en]) |
-
1988
- 1988-05-30 JP JP7190688U patent/JPH01180687U/ja active Pending