JPH044318Y2 - - Google Patents

Info

Publication number
JPH044318Y2
JPH044318Y2 JP1985118213U JP11821385U JPH044318Y2 JP H044318 Y2 JPH044318 Y2 JP H044318Y2 JP 1985118213 U JP1985118213 U JP 1985118213U JP 11821385 U JP11821385 U JP 11821385U JP H044318 Y2 JPH044318 Y2 JP H044318Y2
Authority
JP
Japan
Prior art keywords
light
receiver
filter
projector
strip
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
Application number
JP1985118213U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6228294U (enrdf_load_stackoverflow
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 JP1985118213U priority Critical patent/JPH044318Y2/ja
Publication of JPS6228294U publication Critical patent/JPS6228294U/ja
Application granted granted Critical
Publication of JPH044318Y2 publication Critical patent/JPH044318Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
JP1985118213U 1985-08-02 1985-08-02 Expired JPH044318Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985118213U JPH044318Y2 (enrdf_load_stackoverflow) 1985-08-02 1985-08-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985118213U JPH044318Y2 (enrdf_load_stackoverflow) 1985-08-02 1985-08-02

Publications (2)

Publication Number Publication Date
JPS6228294U JPS6228294U (enrdf_load_stackoverflow) 1987-02-20
JPH044318Y2 true JPH044318Y2 (enrdf_load_stackoverflow) 1992-02-07

Family

ID=31004455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985118213U Expired JPH044318Y2 (enrdf_load_stackoverflow) 1985-08-02 1985-08-02

Country Status (1)

Country Link
JP (1) JPH044318Y2 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0365570U (enrdf_load_stackoverflow) * 1989-10-30 1991-06-26
JP5713862B2 (ja) * 2011-09-29 2015-05-07 能美防災株式会社 光電式分離型煙感知器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133768A (en) * 1976-04-30 1977-11-09 Mitsubishi Electric Corp Light wmi ssion quantity control type photo coupler
JPS53113587A (en) * 1977-03-14 1978-10-04 Nec Corp Operation testing method of smoke detector
JPS6146447Y2 (enrdf_load_stackoverflow) * 1980-03-14 1986-12-27

Also Published As

Publication number Publication date
JPS6228294U (enrdf_load_stackoverflow) 1987-02-20

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