SE8201696L - Fotoelektrisk rokdetektor - Google Patents

Fotoelektrisk rokdetektor

Info

Publication number: SE8201696L
Authority: SE; Sweden
Prior art keywords: photo; output; light emitting; emitting diode; diode
Prior art date: 1981-03-18

Application number

SE8201696A

Other languages

Unknown language ( )

English (en)

Other versions

SE452812B (sv

Inventor

H Honma

Original Assignee

Hochiki Co

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.)

1981-03-18

Filing date

1982-03-17

Publication date

1982-09-19

1982-03-17 Application filed by Hochiki Co filed Critical Hochiki Co

1982-09-19 Publication of SE8201696L publication Critical patent/SE8201696L/sv

1987-12-14 Publication of SE452812B publication Critical patent/SE452812B/sv

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
- G08B17/107—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 for detecting light-scattering due to smoke

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)

SE8201696A 1981-03-18 1982-03-17 Fotoelektrisk rokdetektor SE452812B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP56038903A JPS6014398B2 (ja)	1981-03-18	1981-03-18	光電式煙感知器

Publications (2)

Publication Number	Publication Date
SE8201696L true SE8201696L (sv)	1982-09-19
SE452812B SE452812B (sv)	1987-12-14

Family

ID=12538147

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8201696A SE452812B (sv)	1981-03-18	1982-03-17	Fotoelektrisk rokdetektor

Country Status (7)

Country	Link
US (1)	US4481506A (sv)
JP (1)	JPS6014398B2 (sv)
AU (1)	AU538594B2 (sv)
CH (1)	CH655192A5 (sv)
DE (1)	DE3209994A1 (sv)
GB (1)	GB2097917B (sv)
SE (1)	SE452812B (sv)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS60230038A (ja) *	1984-04-27	1985-11-15	Hochiki Corp	光電式アナログ煙感知器の受光回路
JPS60187315A (ja) *	1984-03-06	1985-09-24	Mitsubishi Heavy Ind Ltd	集じん装置
US4626695A (en) *	1984-07-16	1986-12-02	Pittway Corporation	Photoelectric combustion products detector with low power consumption and improved noise immunity
JPS6157836A (ja) *	1984-08-29	1986-03-24	Hochiki Corp	光電式煙感知器
US4637420A (en) *	1985-12-16	1987-01-20	United Technologies Corporation	Metering valve
JPH02112096A (ja) *	1988-10-21	1990-04-24	Matsushita Electric Works Ltd	Ｉｃ化された感知器
GB9014015D0 (en) *	1990-06-23	1990-08-15	Dennis Peter N J	Improvements in or relating to smoke detectors
CN1071291A (zh) *	1991-09-30	1993-04-21	莫托罗拉公司	带有小型虚像显示器的便携式通讯接收机
US5691700A (en) *	1994-09-15	1997-11-25	United Technologies Corporation	Apparatus and method using non-contact light sensing with selective field of view, low input impedance, current-mode amplification and/or adjustable switching level
DE69627922T2 (de) *	1995-03-24	2004-03-11	Nohmi Bosai Ltd.	Sensor zur Feststellung feiner Teilchen wie Rauch
US6060719A (en) *	1997-06-24	2000-05-09	Gas Research Institute	Fail safe gas furnace optical flame sensor using a transconductance amplifier and low photodiode current
CN1116636C (zh) *	1998-06-12	2003-07-30	致伸实业股份有限公司	使用斜率检知方式之数字检知器
US6329922B1 (en) *	1999-07-27	2001-12-11	Hochiki Kabushiki Kaisha	Fire detector and noise de-influence method
RU2168767C1 (ru) *	1999-11-05	2001-06-10	Алексеев Александр Федорович	Дымовой извещатель (варианты)
RU2314569C1 (ru) *	2006-06-29	2008-01-10	Общество с ограниченной ответственностью "Техпром"	Способ формирования сигнала пожарной тревоги
WO2010102646A1 (en) *	2009-03-10	2010-09-16	Ab Skf	Power supply
DE102011018450B4 (de)	2011-04-21	2017-08-31	Infineon Technologies Ag	Halbleiterbauelement mit durchgeschalteten parasitären Thyristor bei einem Lichtangriff und Halbleiterbauelement mit Alarmschaltung für einen Lichtangriff
DE102020129122A1 (de)	2020-11-05	2022-05-05	Pepperl+Fuchs Se	Optischer Sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IL45331A (en) *	1973-11-26	1977-12-30	Chloride Batterijen Bv	Photoelectric smoke detector
ZA763862B (en) *	1975-07-21	1977-05-25	Gen Signal Corp	Photodiode smoke detector
US4260984A (en) *	1979-03-17	1981-04-07	Hochiki Corporation	Count discriminating fire detector

1981
- 1981-03-18 JP JP56038903A patent/JPS6014398B2/ja not_active Expired
1982
- 1982-03-12 US US06/357,712 patent/US4481506A/en not_active Expired - Fee Related
- 1982-03-15 AU AU81522/82A patent/AU538594B2/en not_active Ceased
- 1982-03-15 GB GB8207518A patent/GB2097917B/en not_active Expired
- 1982-03-16 DE DE19823209994 patent/DE3209994A1/de active Granted
- 1982-03-16 CH CH1634/82A patent/CH655192A5/fr not_active IP Right Cessation
- 1982-03-17 SE SE8201696A patent/SE452812B/sv not_active IP Right Cessation

Also Published As

Publication number	Publication date
DE3209994C2 (sv)	1989-08-10
DE3209994A1 (de)	1982-10-07
AU8152282A (en)	1982-09-23
JPS57153397A (en)	1982-09-21
GB2097917B (en)	1984-11-14
GB2097917A (en)	1982-11-10
AU538594B2 (en)	1984-08-23
CH655192A5 (fr)	1986-03-27
SE452812B (sv)	1987-12-14
JPS6014398B2 (ja)	1985-04-12
US4481506A (en)	1984-11-06

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Legal Events

Date	Code	Title	Description
1995-01-31	NUG	Patent has lapsed	Ref document number: 8201696-5 Effective date: 19931008 Format of ref document f/p: F

Date

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Description

1995-01-31

NUG

Patent has lapsed

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Effective date: 19931008

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