FI61769C - Optisk branddetektor - Google Patents
Optisk branddetektor Download PDFInfo
- Publication number
- FI61769C FI61769C FI770982A FI770982A FI61769C FI 61769 C FI61769 C FI 61769C FI 770982 A FI770982 A FI 770982A FI 770982 A FI770982 A FI 770982A FI 61769 C FI61769 C FI 61769C
- Authority
- FI
- Finland
- Prior art keywords
- radiation
- detector
- optical
- sensing element
- path length
- Prior art date
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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7604502A SE7604502L (sv) | 1976-04-15 | 1976-04-15 | Optisk branddetektor |
SE7604502 | 1976-04-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI770982A FI770982A (fr) | 1977-10-16 |
FI61769B FI61769B (fi) | 1982-05-31 |
FI61769C true FI61769C (fi) | 1982-09-10 |
Family
ID=20327615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI770982A FI61769C (fi) | 1976-04-15 | 1977-03-29 | Optisk branddetektor |
Country Status (14)
Country | Link |
---|---|
US (1) | US4119949A (fr) |
AU (1) | AU499326B2 (fr) |
BE (1) | BE853380A (fr) |
CA (1) | CA1082336A (fr) |
CH (1) | CH613064A5 (fr) |
DE (1) | DE2714130A1 (fr) |
DK (1) | DK166177A (fr) |
FI (1) | FI61769C (fr) |
FR (1) | FR2366653A1 (fr) |
GB (1) | GB1527965A (fr) |
IT (1) | IT1077786B (fr) |
NL (1) | NL7704154A (fr) |
NO (1) | NO138306C (fr) |
SE (1) | SE7604502L (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE395554B (sv) * | 1976-09-01 | 1977-08-15 | Ericsson Telefon Ab L M | Optisk branddetektor |
US4242669A (en) * | 1979-05-04 | 1980-12-30 | B. A. Security Systems Limited | Passive infrared intruder detection system |
US4306230A (en) * | 1979-12-10 | 1981-12-15 | Honeywell Inc. | Self-checking photoelectric smoke detector |
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 |
US4560874A (en) * | 1981-06-02 | 1985-12-24 | Santa Barbara Research Center | Reference channel for sensing optical contamination |
FR2574200B1 (fr) * | 1984-11-30 | 1987-01-23 | Labo Electronique Physique | Dispositif de detection d'intrus muni d'un dispositif d'antimasquage |
JPH0765963B2 (ja) * | 1986-04-07 | 1995-07-19 | ホーチキ株式会社 | 減光式煙感知器 |
FI83696B (fi) * | 1987-01-27 | 1991-04-30 | Halton Oy | Foerfarande foer reglering av ventilation. |
DE19502521A1 (de) * | 1995-01-27 | 1996-08-01 | Abb Patent Gmbh | Passiv-Infrarot-Melder mit einer Optik, die von einem Strahlungsobjekt emittierte Wärmestrahlung auf einen Infrarotsensor fokussiert |
GB2319604A (en) * | 1996-11-25 | 1998-05-27 | Kidde Fire Protection Ltd | Smoke and particle detector |
AUPQ553800A0 (en) | 2000-02-10 | 2000-03-02 | Cole, Martin Terence | Improvements relating to smoke detectors particularily duct monitored smoke detectors |
NL1023679C2 (nl) * | 2003-06-17 | 2004-12-20 | Tno | Lichtemitterende diode. |
KR101069042B1 (ko) | 2003-10-23 | 2011-09-29 | 테렌스 콜 마틴 | 유동체가 제1 속도로 통과하여 흐르는 입구를 갖는 입자탐지기를 위한 챔버 구성 |
GB2421788A (en) * | 2004-12-21 | 2006-07-05 | Rolls Royce Plc | Fire warning system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1036996A (fr) * | 1951-05-11 | 1953-09-14 | Siderurgie Fse Inst Rech | Pyromètre optique |
GB1327231A (en) * | 1970-01-07 | 1973-08-15 | Nat Res Dev | Fire detecting apparatus |
US3643093A (en) * | 1970-05-25 | 1972-02-15 | Mc Graw Edison Co | Ultraviolet detector system |
SE335080B (fr) * | 1970-07-24 | 1971-05-10 | Ericsson Telefon Ab L M | |
DE2108707A1 (de) * | 1971-02-24 | 1972-09-07 | Portscht R | Rauchdetektor nach dem Streulichtprinzip bei zwei Wellenlängen |
GB1405615A (en) * | 1972-08-11 | 1975-09-10 | Chubb Fire Security Ltd | Fire alarms |
ZA735343B (en) * | 1972-08-11 | 1974-09-25 | Chubb Fire Security Ltd | Fire alarms |
US3799672A (en) * | 1972-09-15 | 1974-03-26 | Us Health Education & Welfare | Oximeter for monitoring oxygen saturation in blood |
CH565421A5 (fr) * | 1974-05-10 | 1975-08-15 | Cerberus Ag |
-
1976
- 1976-04-15 SE SE7604502A patent/SE7604502L/ not_active IP Right Cessation
-
1977
- 1977-03-22 US US05/780,009 patent/US4119949A/en not_active Expired - Lifetime
- 1977-03-22 AU AU23485/77A patent/AU499326B2/en not_active Expired
- 1977-03-29 FI FI770982A patent/FI61769C/sv not_active IP Right Cessation
- 1977-03-30 DE DE19772714130 patent/DE2714130A1/de active Granted
- 1977-04-04 CH CH417777A patent/CH613064A5/xx not_active IP Right Cessation
- 1977-04-07 BE BE176536A patent/BE853380A/fr not_active IP Right Cessation
- 1977-04-12 GB GB15186/77A patent/GB1527965A/en not_active Expired
- 1977-04-13 IT IT22411/77A patent/IT1077786B/it active
- 1977-04-13 CA CA276,037A patent/CA1082336A/fr not_active Expired
- 1977-04-14 NO NO771312A patent/NO138306C/no unknown
- 1977-04-14 FR FR7711302A patent/FR2366653A1/fr active Granted
- 1977-04-14 DK DK166177A patent/DK166177A/da not_active IP Right Cessation
- 1977-04-15 NL NL7704154A patent/NL7704154A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US4119949A (en) | 1978-10-10 |
NO771312L (no) | 1977-10-18 |
AU2348577A (en) | 1978-09-28 |
SE7604502L (sv) | 1977-10-16 |
FR2366653A1 (fr) | 1978-04-28 |
IT1077786B (it) | 1985-05-04 |
NL7704154A (nl) | 1977-10-18 |
BE853380A (fr) | 1977-08-01 |
FR2366653B1 (fr) | 1982-10-29 |
FI61769B (fi) | 1982-05-31 |
DK166177A (da) | 1977-10-16 |
NO138306C (no) | 1978-08-16 |
CA1082336A (fr) | 1980-07-22 |
CH613064A5 (fr) | 1979-08-31 |
SE396831B (sv) | 1977-10-03 |
DE2714130A1 (de) | 1977-10-27 |
AU499326B2 (en) | 1979-04-12 |
GB1527965A (en) | 1978-10-11 |
DE2714130C2 (fr) | 1987-12-17 |
FI770982A (fr) | 1977-10-16 |
NO138306B (no) | 1978-05-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI61769C (fi) | Optisk branddetektor | |
US4547675A (en) | Smoke detector operating according to the radiation extinction principle | |
US3316410A (en) | Apparatus for detecting the presence of aerosols and the like in air | |
US3742222A (en) | Photoelectric sensing system | |
US3557374A (en) | Arrangements for testing blocks of cigarettes by optically imaging their ends on a photomultiplier cathode | |
JP2731183B2 (ja) | インク検出方法および装置 | |
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 | |
US10034348B2 (en) | Light-emitting apparatus | |
US5339155A (en) | Optical wavelength modulated long-path gas monitoring apparatus | |
RU2170420C2 (ru) | Устройство и способ детектирования флуоресцентного и фосфоресцентного свечения | |
GB2301665A (en) | Measuring gas concentration using infrared absorbtion | |
US4937461A (en) | Transmissometer having solid state light source | |
JPS58130841A (ja) | 発光マ−ク検知装置 | |
US7659994B2 (en) | Apparatus for the determination of surface properties | |
EP0477300B1 (fr) | Controle de la couleur | |
JP7168683B2 (ja) | 光を送信するための送信装置 | |
US3846024A (en) | Optical alignment system for optical spectrometers | |
US4449047A (en) | Airborne mineral exploration system | |
KR940005948A (ko) | 반도체층 두께를 측정하는 장치 | |
GB2219855A (en) | Bill discriminating apparatus | |
ITRM990683A1 (it) | Dispositivo e procedimento per il riconoscimento e la localizzazione di sorgenti a raggi laser. | |
US4156816A (en) | Optical fire-detector | |
RU2287803C2 (ru) | Многокомпонентный газоанализатор ик диапазона | |
JPH09282577A (ja) | ガス検出装置 | |
US6444973B1 (en) | Method and apparatus for improving the accuracy of a region-based light detector |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: CERBERUS AG |