JPS6327989U - - Google Patents
Info
- Publication number
- JPS6327989U JPS6327989U JP1986119115U JP11911586U JPS6327989U JP S6327989 U JPS6327989 U JP S6327989U JP 1986119115 U JP1986119115 U JP 1986119115U JP 11911586 U JP11911586 U JP 11911586U JP S6327989 U JPS6327989 U JP S6327989U
- Authority
- JP
- Japan
- Prior art keywords
- optical path
- light
- output end
- absence
- detecting
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Landscapes
- Audible And Visible Signals (AREA)
- Burglar Alarm Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Optical Communication System (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986119115U JPH0534073Y2 (enExample) | 1986-08-01 | 1986-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986119115U JPH0534073Y2 (enExample) | 1986-08-01 | 1986-08-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6327989U true JPS6327989U (enExample) | 1988-02-24 |
| JPH0534073Y2 JPH0534073Y2 (enExample) | 1993-08-30 |
Family
ID=31006192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986119115U Expired - Lifetime JPH0534073Y2 (enExample) | 1986-08-01 | 1986-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0534073Y2 (enExample) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193891A (en) * | 1981-05-25 | 1982-11-29 | Kobishi Electric Co Ltd | Photoelectric type alarm circuit |
-
1986
- 1986-08-01 JP JP1986119115U patent/JPH0534073Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193891A (en) * | 1981-05-25 | 1982-11-29 | Kobishi Electric Co Ltd | Photoelectric type alarm circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0534073Y2 (enExample) | 1993-08-30 |