GB2020097A - Pyroelectric device for detecting infrared rays - Google Patents

Pyroelectric device for detecting infrared rays

Info

Publication number
GB2020097A
GB2020097A GB7912926A GB7912926A GB2020097A GB 2020097 A GB2020097 A GB 2020097A GB 7912926 A GB7912926 A GB 7912926A GB 7912926 A GB7912926 A GB 7912926A GB 2020097 A GB2020097 A GB 2020097A
Authority
GB
United Kingdom
Prior art keywords
infrared rays
detecting infrared
pyroelectric device
pyroelectric
rays
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.)
Withdrawn
Application number
GB7912926A
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Publication of GB2020097A publication Critical patent/GB2020097A/en
Withdrawn legal-status Critical Current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
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/34—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using capacitors, e.g. pyroelectric capacitors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
    • G08B13/191—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using pyroelectric sensor means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N15/00—Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using the Nernst-Ettingshausen effect
    • H10N15/10—Thermoelectric devices using thermal change of the dielectric constant, e.g. working above and below the Curie point

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Radiation Pyrometers (AREA)

Abstract

A pyroelectric device (9) for detecting infrared rays (7) incident from several directions comprises a radiation- accepting surface (5) comprising a high polymeric film (4) of, for example, polyvinylidene fluoride, at least a part of said surface being curved. The device can be incorporated in a burglar or fire alarm, a traffic signal control or a control element for a process line. The surface may be cylindrical, conical, or dome-shaped and the infra-red rays may be directed on to it by a concave mirror, or a set of convex lenses. The device may be mounted in a metal-walled can provided with windows e.g. of germanium or silicon together with an impedance transducer consisting of a resistor and an FET. <IMAGE>
GB7912926A 1978-04-12 1979-04-12 Pyroelectric device for detecting infrared rays Withdrawn GB2020097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1978047043U JPS54151295U (en) 1978-04-12 1978-04-12

Publications (1)

Publication Number Publication Date
GB2020097A true GB2020097A (en) 1979-11-07

Family

ID=12764130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7912926A Withdrawn GB2020097A (en) 1978-04-12 1979-04-12 Pyroelectric device for detecting infrared rays

Country Status (4)

Country Link
JP (1) JPS54151295U (en)
DE (1) DE2914365A1 (en)
FR (1) FR2432706A1 (en)
GB (1) GB2020097A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049493A1 (en) * 1980-10-06 1982-04-14 Cerberus Ag Infrared intrusion detector
DE3803278A1 (en) * 1988-02-04 1989-08-17 Brueck Electronic Beg Gmbh INFRARED SIGNALER
EP0332656A1 (en) * 1986-11-26 1989-09-20 FRADEN, Jacob Motion detector
GB2319080A (en) * 1996-11-05 1998-05-13 Samsung Electronics Co Ltd Infra red detector
EP0957347A2 (en) * 1994-05-13 1999-11-17 Matsushita Electric Industrial Co., Ltd. Radiation detector
EP1998153A1 (en) * 2006-03-20 2008-12-03 Daikin Industries, Ltd. Current pyroelectric infrared sensor
EP2554958A1 (en) * 2011-02-24 2013-02-06 NGK Insulators, Ltd. Pyroelectric element and manufacturing method therefor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011102415A1 (en) 2011-05-24 2012-11-29 Werner Bohmeyer Device for determining radiation energy of pulse source in e.g. far infrared region, has cone-shaped shell including beam inlet opening that lies opposite to cone tip, and thermal sensor arranged with absorber layer at shell inside
DE102011111481B4 (en) 2011-08-24 2014-12-31 Werner Bohmeyer Process for producing a pyroelectric sensor with a concave surface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073974A (en) * 1959-06-17 1963-01-15 Itt Energy converter
US3839640A (en) * 1973-06-20 1974-10-01 J Rossin Differential pyroelectric sensor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049493A1 (en) * 1980-10-06 1982-04-14 Cerberus Ag Infrared intrusion detector
EP0332656A1 (en) * 1986-11-26 1989-09-20 FRADEN, Jacob Motion detector
EP0332656A4 (en) * 1986-11-26 1991-05-08 Jacob Fraden Motion detector
DE3803278A1 (en) * 1988-02-04 1989-08-17 Brueck Electronic Beg Gmbh INFRARED SIGNALER
EP0957347A2 (en) * 1994-05-13 1999-11-17 Matsushita Electric Industrial Co., Ltd. Radiation detector
EP0957347A3 (en) * 1994-05-13 2000-04-19 Matsushita Electric Industrial Co., Ltd. Radiation detector
GB2319080B (en) * 1996-11-05 1999-10-13 Samsung Electronics Co Ltd Infrared object detector
GB2319080A (en) * 1996-11-05 1998-05-13 Samsung Electronics Co Ltd Infra red detector
EP1998153A1 (en) * 2006-03-20 2008-12-03 Daikin Industries, Ltd. Current pyroelectric infrared sensor
EP1998153A4 (en) * 2006-03-20 2012-12-05 Daikin Ind Ltd Current pyroelectric infrared sensor
EP2554958A1 (en) * 2011-02-24 2013-02-06 NGK Insulators, Ltd. Pyroelectric element and manufacturing method therefor
EP2554958A4 (en) * 2011-02-24 2013-05-22 Ngk Insulators Ltd Pyroelectric element and manufacturing method therefor
US8754373B2 (en) 2011-02-24 2014-06-17 Ngk Insulators, Ltd. Pyroelectric element and method for manufacturing the same

Also Published As

Publication number Publication date
FR2432706A1 (en) 1980-02-29
JPS54151295U (en) 1979-10-20
DE2914365A1 (en) 1979-10-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)