JPS53141684A - Optical smoke detector - Google Patents

Optical smoke detector

Info

Publication number
JPS53141684A
JPS53141684A JP5599777A JP5599777A JPS53141684A JP S53141684 A JPS53141684 A JP S53141684A JP 5599777 A JP5599777 A JP 5599777A JP 5599777 A JP5599777 A JP 5599777A JP S53141684 A JPS53141684 A JP S53141684A
Authority
JP
Japan
Prior art keywords
smoke detector
optical smoke
optical
detector
smoke
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.)
Pending
Application number
JP5599777A
Other languages
Japanese (ja)
Inventor
Isatou Watanabe
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 Kogyo 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 Nohmi Bosai Kogyo Co Ltd filed Critical Nohmi Bosai Kogyo Co Ltd
Priority to JP5599777A priority Critical patent/JPS53141684A/en
Publication of JPS53141684A publication Critical patent/JPS53141684A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
JP5599777A 1977-05-17 1977-05-17 Optical smoke detector Pending JPS53141684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5599777A JPS53141684A (en) 1977-05-17 1977-05-17 Optical smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5599777A JPS53141684A (en) 1977-05-17 1977-05-17 Optical smoke detector

Publications (1)

Publication Number Publication Date
JPS53141684A true JPS53141684A (en) 1978-12-09

Family

ID=13014710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5599777A Pending JPS53141684A (en) 1977-05-17 1977-05-17 Optical smoke detector

Country Status (1)

Country Link
JP (1) JPS53141684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0651863U (en) * 1992-12-18 1994-07-15 株式会社松本電子工業 Pinhole detector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936981B1 (en) * 1969-07-04 1974-10-04
JPS5139583B2 (en) * 1973-09-19 1976-10-28

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936981B1 (en) * 1969-07-04 1974-10-04
JPS5139583B2 (en) * 1973-09-19 1976-10-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0651863U (en) * 1992-12-18 1994-07-15 株式会社松本電子工業 Pinhole detector

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