JPH01171388U - - Google Patents
Info
- Publication number
- JPH01171388U JPH01171388U JP6838688U JP6838688U JPH01171388U JP H01171388 U JPH01171388 U JP H01171388U JP 6838688 U JP6838688 U JP 6838688U JP 6838688 U JP6838688 U JP 6838688U JP H01171388 U JPH01171388 U JP H01171388U
- Authority
- JP
- Japan
- Prior art keywords
- light
- modulated
- detection device
- beam detection
- decimal counter
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
- Geophysics And Detection Of Objects (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988068386U JPH0736304Y2 (ja) | 1988-05-24 | 1988-05-24 | 光線式検知装置の投光回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988068386U JPH0736304Y2 (ja) | 1988-05-24 | 1988-05-24 | 光線式検知装置の投光回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01171388U true JPH01171388U (en]) | 1989-12-05 |
| JPH0736304Y2 JPH0736304Y2 (ja) | 1995-08-16 |
Family
ID=31293708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988068386U Expired - Lifetime JPH0736304Y2 (ja) | 1988-05-24 | 1988-05-24 | 光線式検知装置の投光回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0736304Y2 (en]) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844378A (ja) * | 1981-09-10 | 1983-03-15 | Koito Ind Co Ltd | 踏切障害物検知装置 |
-
1988
- 1988-05-24 JP JP1988068386U patent/JPH0736304Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844378A (ja) * | 1981-09-10 | 1983-03-15 | Koito Ind Co Ltd | 踏切障害物検知装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0736304Y2 (ja) | 1995-08-16 |