JPS6339840Y2 - - Google Patents
Info
- Publication number
- JPS6339840Y2 JPS6339840Y2 JP16796182U JP16796182U JPS6339840Y2 JP S6339840 Y2 JPS6339840 Y2 JP S6339840Y2 JP 16796182 U JP16796182 U JP 16796182U JP 16796182 U JP16796182 U JP 16796182U JP S6339840 Y2 JPS6339840 Y2 JP S6339840Y2
- Authority
- JP
- Japan
- Prior art keywords
- hood
- detection element
- cam
- peripheral wall
- viewing angle
- 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 18
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Burglar Alarm Systems (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16796182U JPS5974485U (ja) | 1982-11-08 | 1982-11-08 | 赤外線を利用した侵入または火災検出器の視野角可変装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16796182U JPS5974485U (ja) | 1982-11-08 | 1982-11-08 | 赤外線を利用した侵入または火災検出器の視野角可変装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5974485U JPS5974485U (ja) | 1984-05-21 |
JPS6339840Y2 true JPS6339840Y2 (enrdf_load_stackoverflow) | 1988-10-19 |
Family
ID=30367326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16796182U Granted JPS5974485U (ja) | 1982-11-08 | 1982-11-08 | 赤外線を利用した侵入または火災検出器の視野角可変装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5974485U (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020128917A (ja) * | 2019-02-08 | 2020-08-27 | オムロン株式会社 | 赤外線検出器のキャップ |
-
1982
- 1982-11-08 JP JP16796182U patent/JPS5974485U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5974485U (ja) | 1984-05-21 |
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