JPH0196091U - - Google Patents

Info

Publication number
JPH0196091U
JPH0196091U JP18942687U JP18942687U JPH0196091U JP H0196091 U JPH0196091 U JP H0196091U JP 18942687 U JP18942687 U JP 18942687U JP 18942687 U JP18942687 U JP 18942687U JP H0196091 U JPH0196091 U JP H0196091U
Authority
JP
Japan
Prior art keywords
light source
light
receiver
dark box
smoke detector
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
JP18942687U
Other languages
English (en)
Japanese (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 JP18942687U priority Critical patent/JPH0196091U/ja
Publication of JPH0196091U publication Critical patent/JPH0196091U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP18942687U 1987-12-15 1987-12-15 Pending JPH0196091U (US20100170793A1-20100708-C00006.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18942687U JPH0196091U (US20100170793A1-20100708-C00006.png) 1987-12-15 1987-12-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18942687U JPH0196091U (US20100170793A1-20100708-C00006.png) 1987-12-15 1987-12-15

Publications (1)

Publication Number Publication Date
JPH0196091U true JPH0196091U (US20100170793A1-20100708-C00006.png) 1989-06-26

Family

ID=31480456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18942687U Pending JPH0196091U (US20100170793A1-20100708-C00006.png) 1987-12-15 1987-12-15

Country Status (1)

Country Link
JP (1) JPH0196091U (US20100170793A1-20100708-C00006.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147294A (en) * 1980-04-15 1981-11-16 Matsushita Electric Works Ltd Optical system for smoke sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147294A (en) * 1980-04-15 1981-11-16 Matsushita Electric Works Ltd Optical system for smoke sensor

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