JPS5413391A - Smoke sensor - Google Patents

Smoke sensor

Info

Publication number
JPS5413391A
JPS5413391A JP7879977A JP7879977A JPS5413391A JP S5413391 A JPS5413391 A JP S5413391A JP 7879977 A JP7879977 A JP 7879977A JP 7879977 A JP7879977 A JP 7879977A JP S5413391 A JPS5413391 A JP S5413391A
Authority
JP
Japan
Prior art keywords
area
smoke sensor
light
smoke
reflecting
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.)
Pending
Application number
JP7879977A
Other languages
Japanese (ja)
Inventor
Shigeto Harano
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP7879977A priority Critical patent/JPS5413391A/en
Publication of JPS5413391A publication Critical patent/JPS5413391A/en
Pending 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE:To make it possible to shorten the response time for a smoke flow by providing a reflecting mirror in a light emitting area so that an enlarged smoke sensitive area may be formed at the intersecting portion between of a light reflecting area and a light receiving area.
JP7879977A 1977-06-30 1977-06-30 Smoke sensor Pending JPS5413391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7879977A JPS5413391A (en) 1977-06-30 1977-06-30 Smoke sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7879977A JPS5413391A (en) 1977-06-30 1977-06-30 Smoke sensor

Publications (1)

Publication Number Publication Date
JPS5413391A true JPS5413391A (en) 1979-01-31

Family

ID=13671900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7879977A Pending JPS5413391A (en) 1977-06-30 1977-06-30 Smoke sensor

Country Status (1)

Country Link
JP (1) JPS5413391A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023261A (en) * 1988-08-30 1991-06-11 Kissei Pharmaceutical Co., Ltd. Acylated benzofuro[3,2-c]quinoline compounds with utility as treatments for osteoporosis
EP0588232A1 (en) * 1992-09-14 1994-03-23 Cerberus Ag Optic smoke detector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023261A (en) * 1988-08-30 1991-06-11 Kissei Pharmaceutical Co., Ltd. Acylated benzofuro[3,2-c]quinoline compounds with utility as treatments for osteoporosis
EP0588232A1 (en) * 1992-09-14 1994-03-23 Cerberus Ag Optic smoke detector
US5451931A (en) * 1992-09-14 1995-09-19 Cerberus Ag Optical smoke detector

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