JPS53141079A - Photoelectric type smoke detector with operation indicator - Google Patents

Photoelectric type smoke detector with operation indicator

Info

Publication number
JPS53141079A
JPS53141079A JP5667277A JP5667277A JPS53141079A JP S53141079 A JPS53141079 A JP S53141079A JP 5667277 A JP5667277 A JP 5667277A JP 5667277 A JP5667277 A JP 5667277A JP S53141079 A JPS53141079 A JP S53141079A
Authority
JP
Japan
Prior art keywords
light emitting
smoke detector
operation indicator
type smoke
photoelectric type
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
JP5667277A
Other languages
Japanese (ja)
Other versions
JPS6019558B2 (en
Inventor
Shigeto Harano
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 JP5667277A priority Critical patent/JPS6019558B2/en
Publication of JPS53141079A publication Critical patent/JPS53141079A/en
Publication of JPS6019558B2 publication Critical patent/JPS6019558B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE:To use the light of a amoke detecting light emitting element for an operation indicating lamp by leading out the photoconductor which leads the light of the light emitting elemet to the outside of detector to the lower end of the detector to make it visible from the entire outside direction and changing the light emitting mode of the light emitting element at the time when fire is detected and when not.
JP5667277A 1977-05-14 1977-05-14 Photoelectric smoke detector with operation indicator Expired JPS6019558B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5667277A JPS6019558B2 (en) 1977-05-14 1977-05-14 Photoelectric smoke detector with operation indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5667277A JPS6019558B2 (en) 1977-05-14 1977-05-14 Photoelectric smoke detector with operation indicator

Publications (2)

Publication Number Publication Date
JPS53141079A true JPS53141079A (en) 1978-12-08
JPS6019558B2 JPS6019558B2 (en) 1985-05-16

Family

ID=13033901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5667277A Expired JPS6019558B2 (en) 1977-05-14 1977-05-14 Photoelectric smoke detector with operation indicator

Country Status (1)

Country Link
JP (1) JPS6019558B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570431A1 (en) * 1991-02-07 1993-11-24 JAMES HARDIE BUILDING SERVICES & TECHNOLOGIES LIMITED Detector with indicator light

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570431A1 (en) * 1991-02-07 1993-11-24 JAMES HARDIE BUILDING SERVICES & TECHNOLOGIES LIMITED Detector with indicator light
EP0570431A4 (en) * 1991-02-07 1996-03-27 Hardie James Building Services Detector with indicator light

Also Published As

Publication number Publication date
JPS6019558B2 (en) 1985-05-16

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