JPH082797Y2 - 散乱光式煙感知器 - Google Patents

散乱光式煙感知器

Info

Publication number
JPH082797Y2
JPH082797Y2 JP1989097977U JP9797789U JPH082797Y2 JP H082797 Y2 JPH082797 Y2 JP H082797Y2 JP 1989097977 U JP1989097977 U JP 1989097977U JP 9797789 U JP9797789 U JP 9797789U JP H082797 Y2 JPH082797 Y2 JP H082797Y2
Authority
JP
Japan
Prior art keywords
smoke
annular wall
scattered light
light
reflecting
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
JP1989097977U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0337592U (enrdf_load_stackoverflow
Inventor
智 堀内
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.)
Nohmi Bosai Ltd
Original Assignee
Nohmi Bosai 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 Nohmi Bosai Ltd filed Critical Nohmi Bosai Ltd
Priority to JP1989097977U priority Critical patent/JPH082797Y2/ja
Publication of JPH0337592U publication Critical patent/JPH0337592U/ja
Application granted granted Critical
Publication of JPH082797Y2 publication Critical patent/JPH082797Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
JP1989097977U 1989-08-24 1989-08-24 散乱光式煙感知器 Expired - Lifetime JPH082797Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989097977U JPH082797Y2 (ja) 1989-08-24 1989-08-24 散乱光式煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989097977U JPH082797Y2 (ja) 1989-08-24 1989-08-24 散乱光式煙感知器

Publications (2)

Publication Number Publication Date
JPH0337592U JPH0337592U (enrdf_load_stackoverflow) 1991-04-11
JPH082797Y2 true JPH082797Y2 (ja) 1996-01-29

Family

ID=31647097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989097977U Expired - Lifetime JPH082797Y2 (ja) 1989-08-24 1989-08-24 散乱光式煙感知器

Country Status (1)

Country Link
JP (1) JPH082797Y2 (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55462A (en) * 1979-02-08 1980-01-05 Nittan Co Ltd Optical scatter type smoke sensor

Also Published As

Publication number Publication date
JPH0337592U (enrdf_load_stackoverflow) 1991-04-11

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