JPH02124524U - - Google Patents
Info
- Publication number
- JPH02124524U JPH02124524U JP3417989U JP3417989U JPH02124524U JP H02124524 U JPH02124524 U JP H02124524U JP 3417989 U JP3417989 U JP 3417989U JP 3417989 U JP3417989 U JP 3417989U JP H02124524 U JPH02124524 U JP H02124524U
- Authority
- JP
- Japan
- Prior art keywords
- infrared
- optical
- distance setting
- infrared light
- short
- 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
- 238000001514 detection method Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
- Burglar Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3417989U JPH0612506Y2 (ja) | 1989-03-24 | 1989-03-24 | 受動型赤外線検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3417989U JPH0612506Y2 (ja) | 1989-03-24 | 1989-03-24 | 受動型赤外線検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02124524U true JPH02124524U (en]) | 1990-10-15 |
| JPH0612506Y2 JPH0612506Y2 (ja) | 1994-03-30 |
Family
ID=31538428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3417989U Expired - Lifetime JPH0612506Y2 (ja) | 1989-03-24 | 1989-03-24 | 受動型赤外線検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612506Y2 (en]) |
-
1989
- 1989-03-24 JP JP3417989U patent/JPH0612506Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0612506Y2 (ja) | 1994-03-30 |
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