DE3031285C2 - Rauchdetektor. - Google Patents

Rauchdetektor.

Info

Publication number
DE3031285C2
DE3031285C2 DE3031285A DE3031285A DE3031285C2 DE 3031285 C2 DE3031285 C2 DE 3031285C2 DE 3031285 A DE3031285 A DE 3031285A DE 3031285 A DE3031285 A DE 3031285A DE 3031285 C2 DE3031285 C2 DE 3031285C2
Authority
DE
Germany
Prior art keywords
radiation
smoke detector
radiation path
partition walls
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.)
Expired
Application number
DE3031285A
Other languages
German (de)
English (en)
Other versions
DE3031285A1 (de
Inventor
Kiyoshi Tokio/Tokyo Ibaraki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nohmi Bosai Ltd
Original Assignee
Nohmi Bosai Kogyo Co Ltd
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 by Nohmi Bosai Kogyo Co Ltd filed Critical Nohmi Bosai Kogyo Co Ltd
Publication of DE3031285A1 publication Critical patent/DE3031285A1/de
Application granted granted Critical
Publication of DE3031285C2 publication Critical patent/DE3031285C2/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE3031285A 1979-08-23 1980-08-19 Rauchdetektor. Expired DE3031285C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979115157U JPS5633551U (https=) 1979-08-23 1979-08-23

Publications (2)

Publication Number Publication Date
DE3031285A1 DE3031285A1 (de) 1981-03-12
DE3031285C2 true DE3031285C2 (de) 1985-05-09

Family

ID=14655732

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3031285A Expired DE3031285C2 (de) 1979-08-23 1980-08-19 Rauchdetektor.

Country Status (2)

Country Link
JP (1) JPS5633551U (https=)
DE (1) DE3031285C2 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE450176B (sv) * 1981-05-19 1987-06-09 Cerberus Ag Optisk branddetektor med forlengd stralveg innefattande en ljuskella med tva ljusalstrande enheter med olika vaglengd, vilka aktiveras omvexlande med varandra
US5060508A (en) * 1990-04-02 1991-10-29 Gaztech Corporation Gas sample chamber
CN116698678A (zh) * 2023-05-08 2023-09-05 湖南经研电力设计有限公司 一种用于锂离子电池簇的安全隐患监测装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH457203A (de) * 1966-02-11 1968-05-31 Jomos Feuerloesch Technik Photoelektrischer Rauchmelder
CH561942A5 (https=) * 1974-03-08 1975-05-15 Cerberus Ag
JPS5628530Y2 (https=) * 1977-06-10 1981-07-07

Also Published As

Publication number Publication date
DE3031285A1 (de) 1981-03-12
JPS5633551U (https=) 1981-04-02

Similar Documents

Publication Publication Date Title
DE19610816C2 (de) Hintergrundbeleuchtungssystem für eine Anzeigetafel
DE2719191C2 (de) Infrarotstrahlungs-Einbruchdetektor
DE19511393B4 (de) Gerät zur Substratbehandlung, insbesondere zum Perforieren von Papier
DE3205065C2 (https=)
EP0652422B1 (de) Vorrichtung zum Empfang von Lichtstrahlen
DE2851444A1 (de) Lichtgitter
DE2938810A1 (de) Vorrichtung zum einkoppeln von strahlung in einen optischen wellenleiter
DE2937914A1 (de) Einrichtung zur erzeugung gepulster lichtstrahlen aus einem kontinuierlichen lichtstrahl
EP0191155A1 (de) Infrarot-Einbruchdetektor
EP0123929A2 (de) Fehlerfeststellungsvorrichtung
DE2857061C2 (de) Linsensystem zur Strahlungskonzentration
DE3143137C2 (de) Reflexions-ausblendende, fokussierende optische Vorrichtung
DE3426835C2 (https=)
EP0476361A2 (de) Reflexionslichtschranke
WO1998003946A1 (de) Rauchmelder
DE3031285C2 (de) Rauchdetektor.
CH667744A5 (de) Infrarot-eindringdetektor.
DE3644293C2 (https=)
CH468615A (de) Lichtsignal-Rundum-Empfänger
DE3209113C2 (de) Kraftfahrzeugscheinwerfer
DE2055026A1 (de) Monochromator
DE2602970C3 (de) Vorrichtung zur Überwachung einer Materialbahn auf Fehlstellen
DE3500860A1 (de) Optische anordnung an passiv-infrarot-bewegungsmeldern
DE19532611C2 (de) Doppelwegmonochromator in Differenzdispersionsanordnung
DE2609068A1 (de) Optisches geraet fuer schutz-lichtschranken

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee