EP0021630A3 - Infrared intrusion detector and optical system for such a detector - Google Patents

Infrared intrusion detector and optical system for such a detector Download PDF

Info

Publication number
EP0021630A3
EP0021630A3 EP80301819A EP80301819A EP0021630A3 EP 0021630 A3 EP0021630 A3 EP 0021630A3 EP 80301819 A EP80301819 A EP 80301819A EP 80301819 A EP80301819 A EP 80301819A EP 0021630 A3 EP0021630 A3 EP 0021630A3
Authority
EP
European Patent Office
Prior art keywords
radiation
detector
infrared
gathering
sensitive regions
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.)
Ceased
Application number
EP80301819A
Other languages
German (de)
French (fr)
Other versions
EP0021630A2 (en
Inventor
Zbigniew W. Turlej
Donald Frederick Hawken
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.)
Isotec Industries Ltd
Original Assignee
Isotec Industries 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 Isotec Industries Ltd filed Critical Isotec Industries Ltd
Publication of EP0021630A2 publication Critical patent/EP0021630A2/en
Publication of EP0021630A3 publication Critical patent/EP0021630A3/en
Ceased 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
    • G08B13/193—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 focusing means

Abstract

An infrared instrusion detector has an otpical system for gathering infrared radiation from discrete sensitive regions and focusing such received radiation onto an infrared radiation sensor. The detector includes a monitoring device to sound an alarm when radiation sensed reaches a predetermined level. The optical system comprises an optical collector for gathering radiation from a field which includes the sensitive regions and for converging such radiation onto a plurality of reflectors. Each reflector determines one of the discrete sensitive regions and, in turn, is oriented to reflect converging radiation gathered from a sensitive region on the detector. The invention provides a simple, efficient optic system for a broad field of gathering infrared radiation, concentrating and focusing it in a manner to provide sufficient levels of received radiation for purposes of detection.
EP80301819A 1979-06-11 1980-06-02 Infrared intrusion detector and optical system for such a detector Ceased EP0021630A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA329,480A CA1095302A (en) 1979-06-11 1979-06-11 Optics for infrared intrusion detector
CA329480 1979-06-11

Publications (2)

Publication Number Publication Date
EP0021630A2 EP0021630A2 (en) 1981-01-07
EP0021630A3 true EP0021630A3 (en) 1981-01-21

Family

ID=4114409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80301819A Ceased EP0021630A3 (en) 1979-06-11 1980-06-02 Infrared intrusion detector and optical system for such a detector

Country Status (3)

Country Link
EP (1) EP0021630A3 (en)
JP (1) JPS562091A (en)
CA (1) CA1095302A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2861696D1 (en) * 1977-09-07 1982-04-29 Ici Plc Thermoplastic aromatic polyetherketones, a method for their preparation and their application as electrical insulants
CH650604A5 (en) * 1980-10-24 1985-07-31 Cerberus Ag OPTICAL ARRANGEMENT FOR AN INFRARED BURGLAR DETECTOR.
SE446505B (en) * 1982-11-16 1986-09-22 Gambro Dialysatoren MEMBRANE AND WAY TO MAKE THIS
KR101887054B1 (en) * 2012-03-23 2018-08-09 삼성전자주식회사 Infrared ray detecting device and heating cooker including the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886360A (en) * 1973-09-04 1975-05-27 Gulf & Western Mfg Co Infrared intrusion detection apparatus
FR2399078A1 (en) * 1958-02-22 1979-02-23 Heimann Gmbh PASSIVE INFRARED RADIATOR

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2399078A1 (en) * 1958-02-22 1979-02-23 Heimann Gmbh PASSIVE INFRARED RADIATOR
US3886360A (en) * 1973-09-04 1975-05-27 Gulf & Western Mfg Co Infrared intrusion detection apparatus

Also Published As

Publication number Publication date
CA1095302A (en) 1981-02-10
EP0021630A2 (en) 1981-01-07
JPS562091A (en) 1981-01-10

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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PUAL Search report despatched

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Effective date: 19810704

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18R Application refused

Effective date: 19840727

RIN1 Information on inventor provided before grant (corrected)

Inventor name: TURLEJ, ZBIGNIEW W.

Inventor name: HAWKEN, DONALD FREDERICK