JPH0482788U - - Google Patents

Info

Publication number
JPH0482788U
JPH0482788U JP12371990U JP12371990U JPH0482788U JP H0482788 U JPH0482788 U JP H0482788U JP 12371990 U JP12371990 U JP 12371990U JP 12371990 U JP12371990 U JP 12371990U JP H0482788 U JPH0482788 U JP H0482788U
Authority
JP
Japan
Prior art keywords
light
view
lens
case
optical
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
JP12371990U
Other languages
English (en)
Japanese (ja)
Other versions
JP2531686Y2 (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 JP1990123719U priority Critical patent/JP2531686Y2/ja
Publication of JPH0482788U publication Critical patent/JPH0482788U/ja
Application granted granted Critical
Publication of JP2531686Y2 publication Critical patent/JP2531686Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
JP1990123719U 1990-11-27 1990-11-27 減光式煙感知器 Expired - Lifetime JP2531686Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990123719U JP2531686Y2 (ja) 1990-11-27 1990-11-27 減光式煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990123719U JP2531686Y2 (ja) 1990-11-27 1990-11-27 減光式煙感知器

Publications (2)

Publication Number Publication Date
JPH0482788U true JPH0482788U (OSRAM) 1992-07-17
JP2531686Y2 JP2531686Y2 (ja) 1997-04-09

Family

ID=31871410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990123719U Expired - Lifetime JP2531686Y2 (ja) 1990-11-27 1990-11-27 減光式煙感知器

Country Status (1)

Country Link
JP (1) JP2531686Y2 (OSRAM)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824889U (ja) * 1981-08-10 1983-02-17 能美防災工業株式会社 光軸調整用の小窓を備えた減光式煙感知器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824889U (ja) * 1981-08-10 1983-02-17 能美防災工業株式会社 光軸調整用の小窓を備えた減光式煙感知器

Also Published As

Publication number Publication date
JP2531686Y2 (ja) 1997-04-09

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