JPH0542560Y2 - - Google Patents

Info

Publication number
JPH0542560Y2
JPH0542560Y2 JP1984077367U JP7736784U JPH0542560Y2 JP H0542560 Y2 JPH0542560 Y2 JP H0542560Y2 JP 1984077367 U JP1984077367 U JP 1984077367U JP 7736784 U JP7736784 U JP 7736784U JP H0542560 Y2 JPH0542560 Y2 JP H0542560Y2
Authority
JP
Japan
Prior art keywords
light
output
receiving element
reference voltage
light receiving
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
JP1984077367U
Other languages
English (en)
Japanese (ja)
Other versions
JPS60192091U (ja
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 filed Critical
Priority to JP7736784U priority Critical patent/JPS60192091U/ja
Publication of JPS60192091U publication Critical patent/JPS60192091U/ja
Application granted granted Critical
Publication of JPH0542560Y2 publication Critical patent/JPH0542560Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
JP7736784U 1984-05-25 1984-05-25 減光式煙感知器 Granted JPS60192091U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7736784U JPS60192091U (ja) 1984-05-25 1984-05-25 減光式煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7736784U JPS60192091U (ja) 1984-05-25 1984-05-25 減光式煙感知器

Publications (2)

Publication Number Publication Date
JPS60192091U JPS60192091U (ja) 1985-12-20
JPH0542560Y2 true JPH0542560Y2 (en:Method) 1993-10-26

Family

ID=30620372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7736784U Granted JPS60192091U (ja) 1984-05-25 1984-05-25 減光式煙感知器

Country Status (1)

Country Link
JP (1) JPS60192091U (en:Method)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5127379A (ja) * 1974-08-30 1976-03-06 Nippon Signal Co Ltd Kemurikanchiki
JPS53145498A (en) * 1977-05-24 1978-12-18 Hochiki Co Method of preventing wrong operation of reception transmission alarm
JPS5631625A (en) * 1979-08-24 1981-03-31 Hochiki Corp Smoke detector of photoelectronic type
JPS5839552U (ja) * 1981-09-10 1983-03-15 能美防災工業株式会社 減光式煙感知器の投光部
JPS58218640A (ja) * 1982-06-14 1983-12-19 Seikosha Co Ltd 煙検知装置

Also Published As

Publication number Publication date
JPS60192091U (ja) 1985-12-20

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