JPH01171386U - - Google Patents
Info
- Publication number
- JPH01171386U JPH01171386U JP6838888U JP6838888U JPH01171386U JP H01171386 U JPH01171386 U JP H01171386U JP 6838888 U JP6838888 U JP 6838888U JP 6838888 U JP6838888 U JP 6838888U JP H01171386 U JPH01171386 U JP H01171386U
- Authority
- JP
- Japan
- Prior art keywords
- hood
- light
- projector
- detection device
- receiver
- 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 2
- 238000002834 transmittance Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6838888U JPH01171386U (zh) | 1988-05-24 | 1988-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6838888U JPH01171386U (zh) | 1988-05-24 | 1988-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01171386U true JPH01171386U (zh) | 1989-12-05 |
Family
ID=31293710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6838888U Pending JPH01171386U (zh) | 1988-05-24 | 1988-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01171386U (zh) |
-
1988
- 1988-05-24 JP JP6838888U patent/JPH01171386U/ja active Pending