GB2194041B - Passive infra red detector unit - Google Patents

Passive infra red detector unit

Info

Publication number
GB2194041B
GB2194041B GB8619712A GB8619712A GB2194041B GB 2194041 B GB2194041 B GB 2194041B GB 8619712 A GB8619712 A GB 8619712A GB 8619712 A GB8619712 A GB 8619712A GB 2194041 B GB2194041 B GB 2194041B
Authority
GB
United Kingdom
Prior art keywords
detector unit
infra red
red detector
passive infra
passive
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 - Lifetime
Application number
GB8619712A
Other versions
GB8619712D0 (en
GB2194041A (en
Inventor
Peter William Barnes
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.)
Hoover Ltd
Original Assignee
Hoover 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 Hoover Ltd filed Critical Hoover Ltd
Priority to GB8619712A priority Critical patent/GB2194041B/en
Publication of GB8619712D0 publication Critical patent/GB8619712D0/en
Publication of GB2194041A publication Critical patent/GB2194041A/en
Application granted granted Critical
Publication of GB2194041B publication Critical patent/GB2194041B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB8619712A 1986-08-13 1986-08-13 Passive infra red detector unit Expired - Lifetime GB2194041B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8619712A GB2194041B (en) 1986-08-13 1986-08-13 Passive infra red detector unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8619712A GB2194041B (en) 1986-08-13 1986-08-13 Passive infra red detector unit

Publications (3)

Publication Number Publication Date
GB8619712D0 GB8619712D0 (en) 1986-09-24
GB2194041A GB2194041A (en) 1988-02-24
GB2194041B true GB2194041B (en) 1990-10-03

Family

ID=10602658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8619712A Expired - Lifetime GB2194041B (en) 1986-08-13 1986-08-13 Passive infra red detector unit

Country Status (1)

Country Link
GB (1) GB2194041B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645266B1 (en) * 1989-04-04 1995-06-30 Telemecanique Electrique PHOTO-ELECTRIC DETECTOR
CA1337830C (en) * 1989-09-29 1995-12-26 David Jarman Ultrasonic inspection of seal integrity of bond lines in sealed containers
GB9805022D0 (en) * 1998-03-11 1998-05-06 Rds Electronics Limited Passive infrared detectors and housings therefor
GB2345130A (en) * 1998-12-22 2000-06-28 Pyronix Ltd Intruder sensor housing
DE10060170B4 (en) * 2000-12-04 2011-06-16 Insta Elektro Gmbh Passive infrared motion detectors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069782A1 (en) * 1981-01-19 1983-01-19 Takenaka Engineering Co. Ltd. Optical system for intruder detecting device
GB2122339A (en) * 1982-06-25 1984-01-11 John Anthony Bloice Infra-red intrusion detector system
EP0098521A1 (en) * 1982-07-06 1984-01-18 Heimann GmbH Method and apparatus for automatic room light switching
GB2145813A (en) * 1983-08-26 1985-04-03 Matsushita Electric Works Ltd Infrared intrusion detector
EP0177130B1 (en) * 1984-09-25 1989-03-08 Matsushita Electric Works, Ltd. Passive infrared detector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069782A1 (en) * 1981-01-19 1983-01-19 Takenaka Engineering Co. Ltd. Optical system for intruder detecting device
GB2122339A (en) * 1982-06-25 1984-01-11 John Anthony Bloice Infra-red intrusion detector system
EP0098521A1 (en) * 1982-07-06 1984-01-18 Heimann GmbH Method and apparatus for automatic room light switching
GB2145813A (en) * 1983-08-26 1985-04-03 Matsushita Electric Works Ltd Infrared intrusion detector
EP0177130B1 (en) * 1984-09-25 1989-03-08 Matsushita Electric Works, Ltd. Passive infrared detector

Also Published As

Publication number Publication date
GB8619712D0 (en) 1986-09-24
GB2194041A (en) 1988-02-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee