JPS5454084A - Photoelectric smoke detector - Google Patents

Photoelectric smoke detector

Info

Publication number
JPS5454084A
JPS5454084A JP12042977A JP12042977A JPS5454084A JP S5454084 A JPS5454084 A JP S5454084A JP 12042977 A JP12042977 A JP 12042977A JP 12042977 A JP12042977 A JP 12042977A JP S5454084 A JPS5454084 A JP S5454084A
Authority
JP
Japan
Prior art keywords
output
circuit
unit
oscillatory
detecting
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
JP12042977A
Other languages
English (en)
Inventor
Kiyomi Murai
Shuntaro Aoki
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics 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.)
Filing date
Publication date
Application filed by Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP12042977A priority Critical patent/JPS5454084A/ja
Publication of JPS5454084A publication Critical patent/JPS5454084A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

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)
  • Alarm Systems (AREA)
JP12042977A 1977-10-06 1977-10-06 Photoelectric smoke detector Pending JPS5454084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12042977A JPS5454084A (en) 1977-10-06 1977-10-06 Photoelectric smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12042977A JPS5454084A (en) 1977-10-06 1977-10-06 Photoelectric smoke detector

Publications (1)

Publication Number Publication Date
JPS5454084A true JPS5454084A (en) 1979-04-27

Family

ID=14785986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12042977A Pending JPS5454084A (en) 1977-10-06 1977-10-06 Photoelectric smoke detector

Country Status (1)

Country Link
JP (1) JPS5454084A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05166080A (ja) * 1991-12-16 1993-07-02 Yamato Protec Co 火災警報器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05166080A (ja) * 1991-12-16 1993-07-02 Yamato Protec Co 火災警報器

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