JPH0196091U - - Google Patents

Info

Publication number
JPH0196091U
JPH0196091U JP18942687U JP18942687U JPH0196091U JP H0196091 U JPH0196091 U JP H0196091U JP 18942687 U JP18942687 U JP 18942687U JP 18942687 U JP18942687 U JP 18942687U JP H0196091 U JPH0196091 U JP H0196091U
Authority
JP
Japan
Prior art keywords
light source
light
receiver
dark box
smoke detector
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
Application number
JP18942687U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP18942687U priority Critical patent/JPH0196091U/ja
Publication of JPH0196091U publication Critical patent/JPH0196091U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Description

【図面の簡単な説明】
第1図は本考案による散乱光式煙感知器の一実
施例における要部断面図、第2図は従来の散乱光
式煙感知器における要部断面図である。 1……光源、2……受光器、5,6……光軸、
3……暗箱、4……煙検出空間、9……暗箱内壁
面、10……遮光部。

Claims (1)

    【実用新案登録請求の範囲】
  1. 光源および受光器を有し、該光源および受光器
    の各々の光軸を暗箱内に形成された煙検出空間に
    おいて所定の角度をもつて交差させると共に、上
    記光源が上記受光器を直接照射することがないよ
    うに間を遮光した散乱光式煙感知器において、上
    記光源から照射された光を少なくとも一回反射さ
    せて受光器へ入射させる反射面となる上記暗箱内
    壁面を、上記光源が直接照射することがないよう
    に上記光源の照射範囲を制限する遮光部を上記光
    源の前方に設けたことを特徴とする散乱光式煙感
    知器。
JP18942687U 1987-12-15 1987-12-15 Pending JPH0196091U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18942687U JPH0196091U (ja) 1987-12-15 1987-12-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18942687U JPH0196091U (ja) 1987-12-15 1987-12-15

Publications (1)

Publication Number Publication Date
JPH0196091U true JPH0196091U (ja) 1989-06-26

Family

ID=31480456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18942687U Pending JPH0196091U (ja) 1987-12-15 1987-12-15

Country Status (1)

Country Link
JP (1) JPH0196091U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022183856A (ja) * 2021-05-31 2022-12-13 ニッタン株式会社 検出装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147294A (en) * 1980-04-15 1981-11-16 Matsushita Electric Works Ltd Optical system for smoke sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147294A (en) * 1980-04-15 1981-11-16 Matsushita Electric Works Ltd Optical system for smoke sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022183856A (ja) * 2021-05-31 2022-12-13 ニッタン株式会社 検出装置

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