JPH0534075Y2 - - Google Patents

Info

Publication number
JPH0534075Y2
JPH0534075Y2 JP1984027718U JP2771884U JPH0534075Y2 JP H0534075 Y2 JPH0534075 Y2 JP H0534075Y2 JP 1984027718 U JP1984027718 U JP 1984027718U JP 2771884 U JP2771884 U JP 2771884U JP H0534075 Y2 JPH0534075 Y2 JP H0534075Y2
Authority
JP
Japan
Prior art keywords
light
reference value
circuit
light receiving
registered
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
JP1984027718U
Other languages
English (en)
Japanese (ja)
Other versions
JPS60140188U (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 JP2771884U priority Critical patent/JPS60140188U/ja
Publication of JPS60140188U publication Critical patent/JPS60140188U/ja
Application granted granted Critical
Publication of JPH0534075Y2 publication Critical patent/JPH0534075Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP2771884U 1984-02-28 1984-02-28 減光式煙感知器 Granted JPS60140188U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2771884U JPS60140188U (ja) 1984-02-28 1984-02-28 減光式煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2771884U JPS60140188U (ja) 1984-02-28 1984-02-28 減光式煙感知器

Publications (2)

Publication Number Publication Date
JPS60140188U JPS60140188U (ja) 1985-09-17
JPH0534075Y2 true JPH0534075Y2 (h) 1993-08-30

Family

ID=30524927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2771884U Granted JPS60140188U (ja) 1984-02-28 1984-02-28 減光式煙感知器

Country Status (1)

Country Link
JP (1) JPS60140188U (h)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008202946A (ja) * 2007-02-16 2008-09-04 Nohmi Bosai Ltd 火災感知器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6310514Y2 (h) * 1980-03-10 1988-03-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008202946A (ja) * 2007-02-16 2008-09-04 Nohmi Bosai Ltd 火災感知器

Also Published As

Publication number Publication date
JPS60140188U (ja) 1985-09-17

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