CA981780A - Photon couplers with solid state lamps - Google Patents

Photon couplers with solid state lamps

Info

Publication number
CA981780A
CA981780A CA165,085A CA165085A CA981780A CA 981780 A CA981780 A CA 981780A CA 165085 A CA165085 A CA 165085A CA 981780 A CA981780 A CA 981780A
Authority
CA
Canada
Prior art keywords
couplers
photon
solid state
state lamps
lamps
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.)
Expired
Application number
CA165,085A
Inventor
Robert B. Enemark
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.)
Electro Signal Lab Inc
Original Assignee
Electro Signal Lab Inc
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 Electro Signal Lab Inc filed Critical Electro Signal Lab Inc
Application granted granted Critical
Publication of CA981780A publication Critical patent/CA981780A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA165,085A 1972-03-03 1973-03-02 Photon couplers with solid state lamps Expired CA981780A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23165972A 1972-03-03 1972-03-03

Publications (1)

Publication Number Publication Date
CA981780A true CA981780A (en) 1976-01-13

Family

ID=22870156

Family Applications (1)

Application Number Title Priority Date Filing Date
CA165,085A Expired CA981780A (en) 1972-03-03 1973-03-02 Photon couplers with solid state lamps

Country Status (4)

Country Link
US (1) US3727056A (en)
CA (1) CA981780A (en)
DE (1) DE2310817C3 (en)
GB (1) GB1410283A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2204284B2 (en) * 1972-01-29 1974-04-25 National Rejectors Inc. Gmbh, 2150 Buxtehude Device for photoelectric testing of sheet material, in particular documents or banknotes
CH566059A5 (en) * 1972-03-07 1975-08-29 Protecbat La Detection Electro
US3869641A (en) * 1972-06-21 1975-03-04 Monsanto Co AC Responsive led pilot light circuitry
US4025915A (en) * 1975-10-06 1977-05-24 Electro Signal Lab, Inc. LED smoke detector circuit
DE3016530A1 (en) * 1980-04-29 1981-11-05 Hekatron GmbH, 7811 Sulzburg LIGHT-OPTICAL DETECTION DEVICE FOR A FLOATING PARTICLE CONCENTRATION
US4677426A (en) * 1983-01-28 1987-06-30 Electronic Dust Detection, Inc. Dust detecting ring assembly
US5550369A (en) * 1994-02-28 1996-08-27 Electro-Pro, Inc. Triangulation position detection method and apparatus
US5744793A (en) * 1994-02-28 1998-04-28 Electro-Pro, Inc. Triangulation position-detection and integrated dispensing valve
ES2183899T3 (en) * 1996-07-22 2003-04-01 Siemens Building Tech Ag . SMOKE READER
US5902998A (en) * 1997-02-04 1999-05-11 Control Products, Inc. Apparatus and method for detecting an object using digitally encoded optical signals
US6265709B1 (en) 1997-02-04 2001-07-24 Control Products, Inc. Apparatus and method for detecting an object using digitally encoded optical data
US6082419A (en) 1998-04-01 2000-07-04 Electro-Pro, Inc. Control method and apparatus to detect the presence of a first object and monitor a relative position of the first or subsequent objects such as container identification and product fill control
US6394153B2 (en) 1998-04-01 2002-05-28 Electro-Pro, Inc. Control method and apparatus to detect the presence of a first object and monitor a relative position of the first or subsequent objects such as container identification and product fill control
AU2003902319A0 (en) 2003-05-14 2003-05-29 Garrett Thermal Systems Limited Laser video detector
WO2006050570A1 (en) 2004-11-12 2006-05-18 Vfs Technologies Limited Particle detector, system and method
CN101952709B (en) * 2007-11-15 2015-06-24 爱克斯崔里斯科技有限公司 Particle detection
CN109062317B (en) * 2018-09-07 2020-08-07 无锡华润矽科微电子有限公司 Constant current driving circuit and corresponding photoelectric smoke alarm circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019346A (en) * 1960-03-28 1962-01-30 Jones & Laughlin Steel Corp Electronic surface inspection system
DE1264513C2 (en) * 1963-11-29 1973-01-25 Texas Instruments Inc REFERENCE POTENTIAL FREE DC DIFFERENCE AMPLIFIER
CH417405A (en) * 1964-07-14 1966-07-15 Cerberus Ag Werk Fuer Elektron Device for the detection of aerosols in air
FR1417306A (en) * 1964-09-30 1965-11-12 Saint Gobain Method and device for marking out lines drawn on the surface of a sheet or of a ribbon which is moving in translation

Also Published As

Publication number Publication date
GB1410283A (en) 1975-10-15
DE2310817A1 (en) 1973-09-06
US3727056A (en) 1973-04-10
DE2310817B2 (en) 1979-07-12
DE2310817C3 (en) 1980-03-27

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