[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5329696A - Scattering light system smoke detector - Google Patents

Scattering light system smoke detector

Info

Publication number
JPS5329696A
JPS5329696A JP10445776A JP10445776A JPS5329696A JP S5329696 A JPS5329696 A JP S5329696A JP 10445776 A JP10445776 A JP 10445776A JP 10445776 A JP10445776 A JP 10445776A JP S5329696 A JPS5329696 A JP S5329696A
Authority
JP
Japan
Prior art keywords
smoke detector
light system
scattering light
system smoke
light
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
JP10445776A
Other languages
Japanese (ja)
Other versions
JPS5833599B2 (en
Inventor
Yoshihiko Okuda
Tsunehiko Araki
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP10445776A priority Critical patent/JPS5833599B2/en
Publication of JPS5329696A publication Critical patent/JPS5329696A/en
Publication of JPS5833599B2 publication Critical patent/JPS5833599B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE: Reflected light within a smoke detecting chamber is prevented and S/N is increased by providing a raised part so that the opposing wall surface to which the direct light from a light emitting element falls and the opposing wall surface which can be glanced over from a light receiving element do not oppose to each other.
COPYRIGHT: (C)1978,JPO&Japio
JP10445776A 1976-08-31 1976-08-31 Scattered light smoke detector Expired JPS5833599B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10445776A JPS5833599B2 (en) 1976-08-31 1976-08-31 Scattered light smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10445776A JPS5833599B2 (en) 1976-08-31 1976-08-31 Scattered light smoke detector

Publications (2)

Publication Number Publication Date
JPS5329696A true JPS5329696A (en) 1978-03-20
JPS5833599B2 JPS5833599B2 (en) 1983-07-20

Family

ID=14381126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10445776A Expired JPS5833599B2 (en) 1976-08-31 1976-08-31 Scattered light smoke detector

Country Status (1)

Country Link
JP (1) JPS5833599B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754150A (en) * 1984-08-23 1988-06-28 Nohmi Bosai Kogyo Co. Ltd. Photoelectric smoke detector
JPH04160698A (en) * 1990-10-25 1992-06-03 Matsushita Electric Works Ltd Light scattering type particle detecting sensor
JPH05164695A (en) * 1991-12-10 1993-06-29 Hamamatsu Photonics Kk Fine grain sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754150A (en) * 1984-08-23 1988-06-28 Nohmi Bosai Kogyo Co. Ltd. Photoelectric smoke detector
JPH04160698A (en) * 1990-10-25 1992-06-03 Matsushita Electric Works Ltd Light scattering type particle detecting sensor
JPH05164695A (en) * 1991-12-10 1993-06-29 Hamamatsu Photonics Kk Fine grain sensor

Also Published As

Publication number Publication date
JPS5833599B2 (en) 1983-07-20

Similar Documents

Publication Publication Date Title
JPS5210788A (en) Scattered-light type smoke senser
JPS5329696A (en) Scattering light system smoke detector
JPS52149740A (en) Elevator platform control device
JPS53116792A (en) Semiconductor light emitting-photo detecting composite device
JPS5344048A (en) Photoelectric detector
JPS5289360A (en) Jam detector
JPS529267A (en) Slip detector
JPS5329697A (en) Scattering light system smoke detector
JPS5252394A (en) Transmission type smoke detector
JPS5426760A (en) Optical body detector
JPS52106538A (en) Elevator cage
JPS5357645A (en) Elevator trouble detecting apparatus
JPS5397826A (en) Focal point detecting system
JPS5224559A (en) Electromagnetic type mold level detector
JPS52112345A (en) Oil mist detector
JPS5242192A (en) Banknote detector
JPS5435655A (en) Picture discrimination unit
JPS5374841A (en) Television signal processor
JPS52140182A (en) Man conveyor
JPS5332667A (en) Secondary electron detector
JPS5382199A (en) Scattered light type smoke detector
JPS51120623A (en) Photodetector
JPS524252A (en) Home position detector unit
JPS5278084A (en) Fire detection system in group cable
JPS52119279A (en) Acceleration level detector