SE8103140L - Optisk branddetektor med forlengd stralveg - Google Patents

Optisk branddetektor med forlengd stralveg

Info

Publication number
SE8103140L
SE8103140L SE8103140A SE8103140A SE8103140L SE 8103140 L SE8103140 L SE 8103140L SE 8103140 A SE8103140 A SE 8103140A SE 8103140 A SE8103140 A SE 8103140A SE 8103140 L SE8103140 L SE 8103140L
Authority
SE
Sweden
Prior art keywords
prism
detector
fire detector
optical fire
measuring chamber
Prior art date
Application number
SE8103140A
Other languages
Unknown language ( )
English (en)
Other versions
SE450176B (sv
Inventor
E G Lindgren
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE8103140A priority Critical patent/SE450176B/sv
Priority to DE19823245991 priority patent/DE3245991A1/de
Priority to PCT/SE1982/000155 priority patent/WO1982004150A1/en
Priority to CH281/83A priority patent/CH660086A5/de
Priority to GB08235730A priority patent/GB2109929B/en
Publication of SE8103140L publication Critical patent/SE8103140L/sv
Priority to NO830162A priority patent/NO155363C/no
Publication of SE450176B publication Critical patent/SE450176B/sv

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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 OR 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)
SE8103140A 1981-05-19 1981-05-19 Optisk branddetektor med forlengd stralveg innefattande en ljuskella med tva ljusalstrande enheter med olika vaglengd, vilka aktiveras omvexlande med varandra SE450176B (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8103140A SE450176B (sv) 1981-05-19 1981-05-19 Optisk branddetektor med forlengd stralveg innefattande en ljuskella med tva ljusalstrande enheter med olika vaglengd, vilka aktiveras omvexlande med varandra
DE19823245991 DE3245991A1 (de) 1981-05-19 1982-05-06 Optischer feuerdetektor mit ausgedehntem strahlungsweg
PCT/SE1982/000155 WO1982004150A1 (en) 1981-05-19 1982-05-06 Optical fire detector with extended radiation path
CH281/83A CH660086A5 (de) 1981-05-19 1982-05-06 Optischer feuerdetektor mit verlaengertem strahlungsweg.
GB08235730A GB2109929B (en) 1981-05-19 1982-05-06 Optical fire detector with extended radiation path
NO830162A NO155363C (no) 1981-05-19 1983-01-18 Optisk branndetektor med forlenget straalingsvei.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8103140A SE450176B (sv) 1981-05-19 1981-05-19 Optisk branddetektor med forlengd stralveg innefattande en ljuskella med tva ljusalstrande enheter med olika vaglengd, vilka aktiveras omvexlande med varandra

Publications (2)

Publication Number Publication Date
SE8103140L true SE8103140L (sv) 1982-11-20
SE450176B SE450176B (sv) 1987-06-09

Family

ID=20343873

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8103140A SE450176B (sv) 1981-05-19 1981-05-19 Optisk branddetektor med forlengd stralveg innefattande en ljuskella med tva ljusalstrande enheter med olika vaglengd, vilka aktiveras omvexlande med varandra

Country Status (4)

Country Link
CH (1) CH660086A5 (sv)
GB (1) GB2109929B (sv)
SE (1) SE450176B (sv)
WO (1) WO1982004150A1 (sv)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1758977A (en) * 1926-04-21 1930-05-20 Holophane Co Inc Reflecting prism
SE7604502L (sv) * 1976-04-15 1977-10-16 Ericsson Telefon Ab L M Optisk branddetektor
JPS5633551U (sv) * 1979-08-23 1981-04-02

Also Published As

Publication number Publication date
WO1982004150A1 (en) 1982-11-25
SE450176B (sv) 1987-06-09
GB2109929A (en) 1983-06-08
CH660086A5 (de) 1987-03-13
GB2109929B (en) 1984-12-12

Similar Documents

Publication Publication Date Title
US3994603A (en) Detection system to determine the transmissivity of a medium with respect to radiation, particularly the light transmissivity of smoke-contaminated air, for fire detection
ES8402931A1 (es) Aparato para la inspeccion optica de objetos presentes en un campo de observacion.
JPS5640737A (en) Damage detector for optical fiber for laser power transmission
SE7514389L (sv) Forfarande for opto-elektronisk positionsavkenning och inspektion samt for utforande av forfarandet avsedd anordning
JPS5752005A (en) Focus detecting method
SE8103140L (sv) Optisk branddetektor med forlengd stralveg
JPS5742842A (en) Photoelectric smoke sensor
JPS5687818A (en) Reflex type position detector
SE8101921L (sv) Optisk branddetektor
JPS55142220A (en) Device for measuring wavelength
EP0132370A2 (en) Apparatus for measuring optical transmission factor
FR2425065A1 (fr) Dispositif pour mesurer les caracteristiques determinant le brillant de surfaces
SU1290233A2 (ru) Устройство дл контрол оптических световозвращателей
JPS56145337A (en) Detecting method for surface flaw of long body
EP0075422A3 (en) Measuring performance of reflex reflectors
JPS5560842A (en) Failure checking unit
JPS54124780A (en) Surface inspection apparatus
SU1196744A1 (ru) Дилатометр
SU940018A1 (ru) Двухлучевой фотометр
JPS61223538A (ja) 光電式煙センサ
SU1182337A1 (ru) Фотоэлектрическое устройство дл измерени в зкости жидкости
JPS57182604A (en) Interference measuring device
SU1254847A1 (ru) Фотометр дл измерени прозрачности материалов
JPS5576967A (en) Range detector
JPS56111827A (en) Synchronizing signal generating method of optical scanner

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8103140-3

Effective date: 19880622

Format of ref document f/p: F