GB2475650B - Detector and optical system - Google Patents

Detector and optical system

Info

Publication number: GB2475650B
Authority: GB; United Kingdom
Prior art keywords: detector; optical system; optical
Prior art date: 2005-11-03
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.): Active

Inventor

Juan Sebastian Herrera Stromberg

Craig Leivers

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.)

Pyronix Ltd

Original Assignee

Pyronix 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.)

2005-11-03

Filing date

2005-11-03

Publication date

2011-07-06

2005-11-03Application filed by Pyronix LtdfiledCriticalPyronix Ltd

2005-11-03Priority to GB1103920ApriorityCriticalpatent/GB2475650B/en

2005-11-03Priority claimed from GB0522463Aexternal-prioritypatent/GB2431987B/en

2011-04-20Publication of GB201103920D0publicationCriticalpatent/GB201103920D0/en

2011-05-25Publication of GB2475650ApublicationCriticalpatent/GB2475650A/en

2011-07-06Application grantedgrantedCritical

2011-07-06Publication of GB2475650BpublicationCriticalpatent/GB2475650B/en

StatusActivelegal-statusCriticalCurrent

2025-11-03Anticipated expirationlegal-statusCritical

Classifications

- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
- G08B13/2494—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field by interference with electro-magnetic field distribution combined with other electrical sensor means, e.g. microwave detectors combined with other sensor means
- 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
- 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

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Electromagnetism (AREA)
Burglar Alarm Systems (AREA)

GB1103920A2005-11-032005-11-03Detector and optical systemActiveGB2475650B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB1103920AGB2475650B (en)	2005-11-03	2005-11-03	Detector and optical system

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB0522463AGB2431987B (en)	2005-11-03	2005-11-03	Detector and optical system
GB1103920AGB2475650B (en)	2005-11-03	2005-11-03	Detector and optical system

Publications (3)

Publication Number	Publication Date
GB201103920D0 GB201103920D0 (en)	2011-04-20
GB2475650A GB2475650A (en)	2011-05-25
GB2475650Btrue GB2475650B (en)	2011-07-06

Family

ID=43923381

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB1103920AActiveGB2475650B (en)	2005-11-03	2005-11-03	Detector and optical system

Country Status (1)

Country	Link
GB (1)	GB2475650B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US9500517B2 (en)	2014-12-30	2016-11-22	Google Inc.	Lens for pet rejecting passive infrared sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4734585A (en)*	1985-07-17	1988-03-29	Racal-Guardall (Scotland) Ltd.	Passive infra-red sensor
GB2391936A (en)*	2002-08-13	2004-02-18	Optex Co Ltd	Intruder detection device and method
GB2421789A (en)*	2005-03-10	2006-07-05	Pyronix Ltd	Intruder detector with two optical Fresnel lens systems

2005
- 2005-11-03GBGB1103920Apatent/GB2475650B/enactiveActive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4734585A (en)*	1985-07-17	1988-03-29	Racal-Guardall (Scotland) Ltd.	Passive infra-red sensor
GB2391936A (en)*	2002-08-13	2004-02-18	Optex Co Ltd	Intruder detection device and method
GB2421789A (en)*	2005-03-10	2006-07-05	Pyronix Ltd	Intruder detector with two optical Fresnel lens systems

Also Published As

Publication number	Publication date
GB2475650A (en)	2011-05-25
GB201103920D0 (en)	2011-04-20

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