JPH0650075Y2 - 散乱光式煙感知器 - Google Patents

散乱光式煙感知器

Info

Publication number
JPH0650075Y2
JPH0650075Y2 JP1989133031U JP13303189U JPH0650075Y2 JP H0650075 Y2 JPH0650075 Y2 JP H0650075Y2 JP 1989133031 U JP1989133031 U JP 1989133031U JP 13303189 U JP13303189 U JP 13303189U JP H0650075 Y2 JPH0650075 Y2 JP H0650075Y2
Authority
JP
Japan
Prior art keywords
light
dark box
smoke
fresnel lens
light emitting
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
JP1989133031U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0374098U (US06826419-20041130-M00005.png
Inventor
保 上田
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.)
Nittan Co Ltd
Original Assignee
Nittan Co 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Priority to JP1989133031U priority Critical patent/JPH0650075Y2/ja
Publication of JPH0374098U publication Critical patent/JPH0374098U/ja
Application granted granted Critical
Publication of JPH0650075Y2 publication Critical patent/JPH0650075Y2/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)
JP1989133031U 1989-11-17 1989-11-17 散乱光式煙感知器 Expired - Lifetime JPH0650075Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989133031U JPH0650075Y2 (ja) 1989-11-17 1989-11-17 散乱光式煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989133031U JPH0650075Y2 (ja) 1989-11-17 1989-11-17 散乱光式煙感知器

Publications (2)

Publication Number Publication Date
JPH0374098U JPH0374098U (US06826419-20041130-M00005.png) 1991-07-25
JPH0650075Y2 true JPH0650075Y2 (ja) 1994-12-14

Family

ID=31680451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989133031U Expired - Lifetime JPH0650075Y2 (ja) 1989-11-17 1989-11-17 散乱光式煙感知器

Country Status (1)

Country Link
JP (1) JPH0650075Y2 (US06826419-20041130-M00005.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010040006A (ja) * 2008-08-08 2010-02-18 Sharp Corp 光電式煙センサおよび照明器具

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117587U (ja) * 1982-02-04 1983-08-11 能美防災工業株式会社 散乱光式煙感知器

Also Published As

Publication number Publication date
JPH0374098U (US06826419-20041130-M00005.png) 1991-07-25

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