JPS58171591U - photoelectric smoke detector - Google Patents
photoelectric smoke detectorInfo
- Publication number
- JPS58171591U JPS58171591U JP6873382U JP6873382U JPS58171591U JP S58171591 U JPS58171591 U JP S58171591U JP 6873382 U JP6873382 U JP 6873382U JP 6873382 U JP6873382 U JP 6873382U JP S58171591 U JPS58171591 U JP S58171591U
- Authority
- JP
- Japan
- Prior art keywords
- light
- lens
- axis
- smoke detector
- photoelectric smoke
- 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.)
- Pending
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
−第１図はこの考案の光電式煙感知器の１実施例＝、
の概略図、第２図は第１図と比較し第１図の特徴１
を説明するための光電式煙感知器の概略図である。
＝ １・・・暗室の壁面、”２・・・光源、３・・
・レンズ、４・・・＝ 遮光板、５・・・受光素子、
６・・・遮光板４の開口、７・ ・・・遮光板、Ａ・
・・光源の軸、Ｂ・・・レンズの軸。-Figure 1 shows an example of the photoelectric smoke detector of this invention.
Figure 2 is a schematic diagram of Figure 1 compared to Figure 1.
FIG. 2 is a schematic diagram of a photoelectric smoke detector for explaining. = 1...Darkroom wall, 2...Light source, 3...
・Lens, 4...= Light shielding plate, 5... Light receiving element,
6... Opening of light shielding plate 4, 7... Light shielding plate, A.
...Axis of the light source, B...Axis of the lens.
Claims (1)
とで制限され、光源２の軸Ａと煙による散乱光を捕捉す
るためのレンズ９の軸Ｂとが所π角度で交差するように
光源２とレンズ３とを対向配置し、上記しンズ３の後方
に開口６を備えた迦光板４と受光素子５とをそれらの中
心部がレンズ３の軸Ｂよりも壁面１側に偏倚して設けた
ことを特徴とする光電式煙感知器。The upper and lower limits of the radiation area of the light source 2 are the wall surface 1 of the dark room and the light shielding plate 7
The light source 2 and the lens 3 are arranged to face each other so that the axis A of the light source 2 and the axis B of the lens 9 for capturing light scattered by smoke intersect at an angle of π. A photoelectric smoke detector characterized in that a light-receiving element 5 and a light-receiving element 5 are provided with a light-receiving plate 4 having an aperture 6 at the rear thereof, with their centers being offset toward the wall surface 1 side with respect to the axis B of the lens 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6873382U JPS58171591U (en) | 1982-05-13 | 1982-05-13 | photoelectric smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6873382U JPS58171591U (en) | 1982-05-13 | 1982-05-13 | photoelectric smoke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58171591U true JPS58171591U (en) | 1983-11-16 |
Family
ID=30078485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6873382U Pending JPS58171591U (en) | 1982-05-13 | 1982-05-13 | photoelectric smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58171591U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5126889B1 (en) * | 1971-09-03 | 1976-08-09 | ||
| JPS5330498B2 (en) * | 1973-03-26 | 1978-08-28 |
-
1982
- 1982-05-13 JP JP6873382U patent/JPS58171591U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5126889B1 (en) * | 1971-09-03 | 1976-08-09 | ||
| JPS5330498B2 (en) * | 1973-03-26 | 1978-08-28 |
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