JPS617176U - 光線式警戒装置 - Google Patents
光線式警戒装置Info
- Publication number
- JPS617176U JPS617176U JP8935984U JP8935984U JPS617176U JP S617176 U JPS617176 U JP S617176U JP 8935984 U JP8935984 U JP 8935984U JP 8935984 U JP8935984 U JP 8935984U JP S617176 U JPS617176 U JP S617176U
- Authority
- JP
- Japan
- Prior art keywords
- light beam
- warning device
- warning
- light
- television camera
- 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
- 230000004913 activation Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 1
Landscapes
- Closed-Circuit Television Systems (AREA)
- Burglar Alarm Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8935984U JPS617176U (ja) | 1984-06-18 | 1984-06-18 | 光線式警戒装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8935984U JPS617176U (ja) | 1984-06-18 | 1984-06-18 | 光線式警戒装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS617176U true JPS617176U (ja) | 1986-01-17 |
JPH0533117Y2 JPH0533117Y2 (enrdf_load_stackoverflow) | 1993-08-24 |
Family
ID=30643358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8935984U Granted JPS617176U (ja) | 1984-06-18 | 1984-06-18 | 光線式警戒装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS617176U (enrdf_load_stackoverflow) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS506730U (enrdf_load_stackoverflow) * | 1973-05-18 | 1975-01-23 | ||
JPS5025415U (enrdf_load_stackoverflow) * | 1973-06-28 | 1975-03-24 | ||
JPS5159226A (ja) * | 1974-11-20 | 1976-05-24 | Nippon Cetu Kk | Hoanyoterebikanshisochi |
JPS557747A (en) * | 1978-06-30 | 1980-01-19 | Nec Corp | Light modulator |
-
1984
- 1984-06-18 JP JP8935984U patent/JPS617176U/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS506730U (enrdf_load_stackoverflow) * | 1973-05-18 | 1975-01-23 | ||
JPS5025415U (enrdf_load_stackoverflow) * | 1973-06-28 | 1975-03-24 | ||
JPS5159226A (ja) * | 1974-11-20 | 1976-05-24 | Nippon Cetu Kk | Hoanyoterebikanshisochi |
JPS557747A (en) * | 1978-06-30 | 1980-01-19 | Nec Corp | Light modulator |
Also Published As
Publication number | Publication date |
---|---|
JPH0533117Y2 (enrdf_load_stackoverflow) | 1993-08-24 |
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