JPS5222979A - Photoelectric type smoke detector - Google Patents

Photoelectric type smoke detector

Info

Publication number
JPS5222979A
JPS5222979A JP9888275A JP9888275A JPS5222979A JP S5222979 A JPS5222979 A JP S5222979A JP 9888275 A JP9888275 A JP 9888275A JP 9888275 A JP9888275 A JP 9888275A JP S5222979 A JPS5222979 A JP S5222979A
Authority
JP
Japan
Prior art keywords
smoke
smoke detector
type smoke
photoelectric type
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
JP9888275A
Other languages
Japanese (ja)
Other versions
JPS5847656B2 (en
Inventor
Seiji Ishikawa
Hitoo Iwasa
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9888275A priority Critical patent/JPS5847656B2/en
Publication of JPS5222979A publication Critical patent/JPS5222979A/en
Publication of JPS5847656B2 publication Critical patent/JPS5847656B2/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 place a reflection mirror, light source and receiving element subsequently from the upstream of smoke flow in a box wherein smoke flowa in one direction thereby making it possible to obtain always constant scattered light intensity without distrubance in the light of the light source and the scattered light by smoke, by the smoke.
JP9888275A 1975-08-13 1975-08-13 Kodenshikikemurikanchiki Expired JPS5847656B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9888275A JPS5847656B2 (en) 1975-08-13 1975-08-13 Kodenshikikemurikanchiki

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9888275A JPS5847656B2 (en) 1975-08-13 1975-08-13 Kodenshikikemurikanchiki

Publications (2)

Publication Number Publication Date
JPS5222979A true JPS5222979A (en) 1977-02-21
JPS5847656B2 JPS5847656B2 (en) 1983-10-24

Family

ID=14231511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9888275A Expired JPS5847656B2 (en) 1975-08-13 1975-08-13 Kodenshikikemurikanchiki

Country Status (1)

Country Link
JP (1) JPS5847656B2 (en)

Also Published As

Publication number Publication date
JPS5847656B2 (en) 1983-10-24

Similar Documents

Publication Publication Date Title
NL7712109A (en) OPTICAL SMOKE DETECTOR.
NL7614229A (en) COIN DETECTOR.
OA05953A (en) Solar captor .
NL7704154A (en) OPTICAL FIRE DETECTOR.
NL7710287A (en) SMOKE DETECTOR.
NL7713232A (en) SPECTRAL METER.
JPS5222979A (en) Photoelectric type smoke detector
JPS5536785A (en) Scattered light type smoke sensor
JPS5444582A (en) Smoke detector
JPS5364083A (en) Photoelectric smoke detector
NL7713337A (en) SMOKE DETECTOR.
JPS5436755A (en) Photoelectric type angle and position detector
JPS5317777A (en) Transmission type smoke sensor
JPS5211080A (en) Diffused light type smoke sensor
JPS524256A (en) Physical factor measuring system
NL7608285A (en) REFLECTION METER.
JPS5413391A (en) Smoke sensor
JPS5280880A (en) Attenuation type smoke detector
JPS5210789A (en) Signal processing circuit of light-scattering type smoke senser
FR2350987A1 (en) FRONT HEADLIGHT REACH ADJUSTMENT DEVICE
NL189531C (en) BELT TRANSPORTER WITH LIGHT DETECTION DEVICE.
JPS52104242A (en) Network light scanning system
JPS5336498A (en) Scattered light smoke sensor
JPS53123985A (en) Photoelectric type smoke detector
JPS5342089A (en) Photoelectric detector