JPH0374383U - - Google Patents
Info
- Publication number
- JPH0374383U JPH0374383U JP10185490U JP10185490U JPH0374383U JP H0374383 U JPH0374383 U JP H0374383U JP 10185490 U JP10185490 U JP 10185490U JP 10185490 U JP10185490 U JP 10185490U JP H0374383 U JPH0374383 U JP H0374383U
- Authority
- JP
- Japan
- Prior art keywords
- infrared
- circuit
- infrared detection
- detection element
- frequency noise
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 7
- 230000002265 prevention Effects 0.000 claims 2
- 230000004907 flux Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990101854U JPH0424475Y2 (cs) | 1990-09-27 | 1990-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990101854U JPH0424475Y2 (cs) | 1990-09-27 | 1990-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0374383U true JPH0374383U (cs) | 1991-07-25 |
| JPH0424475Y2 JPH0424475Y2 (cs) | 1992-06-09 |
Family
ID=31650780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990101854U Expired JPH0424475Y2 (cs) | 1990-09-27 | 1990-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424475Y2 (cs) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627785U (cs) * | 1979-08-01 | 1981-03-14 |
-
1990
- 1990-09-27 JP JP1990101854U patent/JPH0424475Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627785U (cs) * | 1979-08-01 | 1981-03-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0424475Y2 (cs) | 1992-06-09 |