JPH0629727Y2 - 散乱光式煙感知器の光学部 - Google Patents

散乱光式煙感知器の光学部

Info

Publication number
JPH0629727Y2
JPH0629727Y2 JP1985129055U JP12905585U JPH0629727Y2 JP H0629727 Y2 JPH0629727 Y2 JP H0629727Y2 JP 1985129055 U JP1985129055 U JP 1985129055U JP 12905585 U JP12905585 U JP 12905585U JP H0629727 Y2 JPH0629727 Y2 JP H0629727Y2
Authority
JP
Japan
Prior art keywords
light
head
labyrinth
reflection point
shielding
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 - Lifetime
Application number
JP1985129055U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6237751U (en]
Inventor
幹夫 望月
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 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 Ltd filed Critical Nohmi Bosai Ltd
Priority to JP1985129055U priority Critical patent/JPH0629727Y2/ja
Priority to US06/897,705 priority patent/US4758733A/en
Priority to DE8686306415T priority patent/DE3679481D1/de
Priority to EP86306415A priority patent/EP0213878B1/en
Priority to CA000516655A priority patent/CA1256530A/en
Publication of JPS6237751U publication Critical patent/JPS6237751U/ja
Application granted granted Critical
Publication of JPH0629727Y2 publication Critical patent/JPH0629727Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP1985129055U 1985-08-24 1985-08-24 散乱光式煙感知器の光学部 Expired - Lifetime JPH0629727Y2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1985129055U JPH0629727Y2 (ja) 1985-08-24 1985-08-24 散乱光式煙感知器の光学部
US06/897,705 US4758733A (en) 1985-08-24 1986-08-18 A labyrinthine light scattering-type smoke detector
DE8686306415T DE3679481D1 (de) 1985-08-24 1986-08-19 Streulichttyp-rauchdetektor.
EP86306415A EP0213878B1 (en) 1985-08-24 1986-08-19 A light-scattering-type smoke detector
CA000516655A CA1256530A (en) 1985-08-24 1986-08-22 Labyrinthine light-scattering-type smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985129055U JPH0629727Y2 (ja) 1985-08-24 1985-08-24 散乱光式煙感知器の光学部

Publications (2)

Publication Number Publication Date
JPS6237751U JPS6237751U (en]) 1987-03-06
JPH0629727Y2 true JPH0629727Y2 (ja) 1994-08-10

Family

ID=14999971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985129055U Expired - Lifetime JPH0629727Y2 (ja) 1985-08-24 1985-08-24 散乱光式煙感知器の光学部

Country Status (5)

Country Link
US (1) US4758733A (en])
EP (1) EP0213878B1 (en])
JP (1) JPH0629727Y2 (en])
CA (1) CA1256530A (en])
DE (1) DE3679481D1 (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013168182A (ja) * 2013-05-22 2013-08-29 Nohmi Bosai Ltd 光電式煙感知器

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63163698A (ja) * 1986-12-26 1988-07-07 ホーチキ株式会社 散乱光式煙感知器
JPS63239592A (ja) * 1987-03-27 1988-10-05 ホーチキ株式会社 光電式煙感知器
JP2506304Y2 (ja) * 1989-09-12 1996-08-07 能美防災株式会社 散乱光式煙感知器
JP2691951B2 (ja) * 1991-03-29 1997-12-17 ホーチキ 株式会社 光電式煙感知器
DE4328671B4 (de) * 1992-08-28 2005-02-17 Hochiki K.K. Streulichtrauchmelder
JP2648560B2 (ja) * 1993-04-09 1997-09-03 ホーチキ株式会社 散乱光式煙感知器
US5400014A (en) * 1993-07-12 1995-03-21 Detection Systems, Inc. Smoke detector with dark chamber
US5546074A (en) * 1993-08-19 1996-08-13 Sentrol, Inc. Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
US6501810B1 (en) 1998-10-13 2002-12-31 Agere Systems Inc. Fast frame synchronization
JP3015634B2 (ja) * 1993-09-07 2000-03-06 ホーチキ株式会社 散乱光式煙感知器
JP3015633B2 (ja) * 1993-09-07 2000-03-06 ホーチキ株式会社 散乱光式煙感知器
GB9417484D0 (en) * 1993-09-07 1994-10-19 Hochiki Co Light scattering type smoke sensor
US5581241A (en) * 1994-08-12 1996-12-03 Voice Products Inc. Ultra-sensitive smoke detector
DE59809254D1 (de) * 1997-05-20 2003-09-18 Siemens Ag Optischer Rauchmelder
JP3848488B2 (ja) * 1999-04-30 2006-11-22 ニッタン株式会社 火災感知器
US6876305B2 (en) * 1999-12-08 2005-04-05 Gentex Corporation Compact particle sensor
US6225910B1 (en) 1999-12-08 2001-05-01 Gentex Corporation Smoke detector
AU762183B2 (en) * 2001-04-24 2003-06-19 Matsushita Electric Works Ltd. Fire detector unit
US6636154B2 (en) 2001-10-17 2003-10-21 Thomas B. Brundage Air condition sensor housing with integral labyrinth
JP3934423B2 (ja) * 2002-01-11 2007-06-20 ホーチキ株式会社 散乱光式煙感知器
US20030197618A1 (en) * 2002-04-23 2003-10-23 Alex Hsieh Smoke collector case
JP4866348B2 (ja) * 2005-03-31 2012-02-01 日本フェンオール株式会社 光電式煙感知器
US7616126B2 (en) * 2006-07-18 2009-11-10 Gentex Corporation Optical particle detectors
JP4405522B2 (ja) * 2007-03-07 2010-01-27 シャープ株式会社 光電式煙センサおよび照明機器
JP2009015630A (ja) * 2007-07-05 2009-01-22 Sharp Corp 光電式煙センサおよび電子機器
JP5133157B2 (ja) * 2008-07-09 2013-01-30 新コスモス電機株式会社 光電式煙感知器
KR20100037539A (ko) * 2008-10-01 2010-04-09 노미 보사이 가부시키가이샤 광전식 연기 감지기
US9255882B2 (en) * 2011-06-01 2016-02-09 Scanco Holding AG Optical imaging system
AU2012277058B2 (en) * 2011-06-30 2015-08-13 Hochiki Corporation Scattered light-type smoke detection apparatus
US9459208B2 (en) * 2013-10-04 2016-10-04 Tyco Fire & Security Gmbh Duct detector with remote airflow test capability
CN111263958B (zh) * 2017-10-30 2022-05-27 开利公司 检测器装置中的补偿器
US11069224B1 (en) * 2020-07-10 2021-07-20 Everday Techology Co., Ltd. Smoke detector and chamber

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH491449A (de) * 1969-05-19 1970-05-31 Cerberus Ag Rauchdetektoranordnung mit mindestens einer Rauchmesskammer
US4216377A (en) * 1977-06-27 1980-08-05 Nittan Company, Limited Light scattering smoke detector
US4206366A (en) * 1978-10-06 1980-06-03 American District Telegraph Co. Optical smoke detector
JPS57116861A (en) * 1981-01-09 1982-07-21 Koshuha Netsuren Kk High tensile shear reinforced iron
US4469953A (en) * 1982-02-02 1984-09-04 Nittan Company, Limited Combination ionization and photoelectric smoke detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013168182A (ja) * 2013-05-22 2013-08-29 Nohmi Bosai Ltd 光電式煙感知器

Also Published As

Publication number Publication date
JPS6237751U (en]) 1987-03-06
DE3679481D1 (de) 1991-07-04
CA1256530A (en) 1989-06-27
EP0213878B1 (en) 1991-05-29
EP0213878A3 (en) 1987-10-28
EP0213878A2 (en) 1987-03-11
US4758733A (en) 1988-07-19

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