JPH0320793Y2 - - Google Patents
Info
- Publication number
- JPH0320793Y2 JPH0320793Y2 JP2108984U JP2108984U JPH0320793Y2 JP H0320793 Y2 JPH0320793 Y2 JP H0320793Y2 JP 2108984 U JP2108984 U JP 2108984U JP 2108984 U JP2108984 U JP 2108984U JP H0320793 Y2 JPH0320793 Y2 JP H0320793Y2
- Authority
- JP
- Japan
- Prior art keywords
- scanning mirror
- signal
- circuit
- detection device
- field
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 31
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims 2
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2108984U JPS60134185U (ja) | 1984-02-15 | 1984-02-15 | 混雑度検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2108984U JPS60134185U (ja) | 1984-02-15 | 1984-02-15 | 混雑度検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60134185U JPS60134185U (ja) | 1985-09-06 |
| JPH0320793Y2 true JPH0320793Y2 (en]) | 1991-05-07 |
Family
ID=30512168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2108984U Granted JPS60134185U (ja) | 1984-02-15 | 1984-02-15 | 混雑度検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60134185U (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2552270B2 (ja) * | 1986-11-26 | 1996-11-06 | 松下電工株式会社 | 人数検出装置 |
| JP2761240B2 (ja) * | 1989-05-12 | 1998-06-04 | 松下電工株式会社 | 赤外線受光型火災検知装置 |
-
1984
- 1984-02-15 JP JP2108984U patent/JPS60134185U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60134185U (ja) | 1985-09-06 |
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