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JPS5211080A - Diffused light type smoke sensor - Google Patents

Diffused light type smoke sensor

Info

Publication number
JPS5211080A
JPS5211080A JP8703675A JP8703675A JPS5211080A JP S5211080 A JPS5211080 A JP S5211080A JP 8703675 A JP8703675 A JP 8703675A JP 8703675 A JP8703675 A JP 8703675A JP S5211080 A JPS5211080 A JP S5211080A
Authority
JP
Japan
Prior art keywords
diffused light
smoke sensor
light type
type 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
JP8703675A
Other languages
Japanese (ja)
Other versions
JPS5634056B2 (en
Inventor
Tetsuo Kimura
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 JP8703675A priority Critical patent/JPS5211080A/en
Publication of JPS5211080A publication Critical patent/JPS5211080A/en
Publication of JPS5634056B2 publication Critical patent/JPS5634056B2/ja
Granted 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 two slit screeens in collecting a large quantity of light diffused in the direction of the high flux from the source of light, thereby achieving a high sensitivity.
JP8703675A 1975-07-16 1975-07-16 Diffused light type smoke sensor Granted JPS5211080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8703675A JPS5211080A (en) 1975-07-16 1975-07-16 Diffused light type smoke sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8703675A JPS5211080A (en) 1975-07-16 1975-07-16 Diffused light type smoke sensor

Publications (2)

Publication Number Publication Date
JPS5211080A true JPS5211080A (en) 1977-01-27
JPS5634056B2 JPS5634056B2 (en) 1981-08-07

Family

ID=13903711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8703675A Granted JPS5211080A (en) 1975-07-16 1975-07-16 Diffused light type smoke sensor

Country Status (1)

Country Link
JP (1) JPS5211080A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02298471A (en) * 1989-05-10 1990-12-10 Zexel Corp Automatic driver device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61275562A (en) * 1985-05-31 1986-12-05 Honda Motor Co Ltd Air-cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02298471A (en) * 1989-05-10 1990-12-10 Zexel Corp Automatic driver device

Also Published As

Publication number Publication date
JPS5634056B2 (en) 1981-08-07

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