JPS51145297A - Photoelectric smoke sensor - Google Patents

Photoelectric smoke sensor

Info

Publication number
JPS51145297A
JPS51145297A JP6993475A JP6993475A JPS51145297A JP S51145297 A JPS51145297 A JP S51145297A JP 6993475 A JP6993475 A JP 6993475A JP 6993475 A JP6993475 A JP 6993475A JP S51145297 A JPS51145297 A JP S51145297A
Authority
JP
Japan
Prior art keywords
smoke sensor
photoelectric smoke
output
light receiving
alarm signal
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.)
Granted
Application number
JP6993475A
Other languages
English (en)
Japanese (ja)
Other versions
JPS566598B2 (enExample
Inventor
Tetsuo Kimura
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.)
Nittan Co Ltd
Original Assignee
Nittan Co 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Priority to JP6993475A priority Critical patent/JPS51145297A/ja
Publication of JPS51145297A publication Critical patent/JPS51145297A/ja
Publication of JPS566598B2 publication Critical patent/JPS566598B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
JP6993475A 1975-06-10 1975-06-10 Photoelectric smoke sensor Granted JPS51145297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6993475A JPS51145297A (en) 1975-06-10 1975-06-10 Photoelectric smoke sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6993475A JPS51145297A (en) 1975-06-10 1975-06-10 Photoelectric smoke sensor

Publications (2)

Publication Number Publication Date
JPS51145297A true JPS51145297A (en) 1976-12-14
JPS566598B2 JPS566598B2 (enExample) 1981-02-12

Family

ID=13416979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6993475A Granted JPS51145297A (en) 1975-06-10 1975-06-10 Photoelectric smoke sensor

Country Status (1)

Country Link
JP (1) JPS51145297A (enExample)

Also Published As

Publication number Publication date
JPS566598B2 (enExample) 1981-02-12

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