JPH01172137U - - Google Patents
Info
- Publication number
- JPH01172137U JPH01172137U JP6889488U JP6889488U JPH01172137U JP H01172137 U JPH01172137 U JP H01172137U JP 6889488 U JP6889488 U JP 6889488U JP 6889488 U JP6889488 U JP 6889488U JP H01172137 U JPH01172137 U JP H01172137U
- Authority
- JP
- Japan
- Prior art keywords
- light
- phototransistor
- emitting diode
- contact
- 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 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6889488U JPH01172137U (zh) | 1988-05-25 | 1988-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6889488U JPH01172137U (zh) | 1988-05-25 | 1988-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01172137U true JPH01172137U (zh) | 1989-12-06 |
Family
ID=31294188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6889488U Pending JPH01172137U (zh) | 1988-05-25 | 1988-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01172137U (zh) |
-
1988
- 1988-05-25 JP JP6889488U patent/JPH01172137U/ja active Pending