GB2322442B - A method of detecting the emission of infra-red radiation - Google Patents

A method of detecting the emission of infra-red radiation

Info

Publication number
GB2322442B
GB2322442B GB9703399A GB9703399A GB2322442B GB 2322442 B GB2322442 B GB 2322442B GB 9703399 A GB9703399 A GB 9703399A GB 9703399 A GB9703399 A GB 9703399A GB 2322442 B GB2322442 B GB 2322442B
Authority
GB
United Kingdom
Prior art keywords
infra
emission
detecting
red radiation
red
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 - Fee Related
Application number
GB9703399A
Other versions
GB2322442A (en
GB9703399D0 (en
Inventor
Edwin David Bullimore
Peter Michael Hutchinson
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.)
AGD Systems Ltd
Original Assignee
AGD Systems 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 AGD Systems Ltd filed Critical AGD Systems Ltd
Priority to GB9703399A priority Critical patent/GB2322442B/en
Publication of GB9703399D0 publication Critical patent/GB9703399D0/en
Publication of GB2322442A publication Critical patent/GB2322442A/en
Application granted granted Critical
Publication of GB2322442B publication Critical patent/GB2322442B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
GB9703399A 1997-02-19 1997-02-19 A method of detecting the emission of infra-red radiation Expired - Fee Related GB2322442B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9703399A GB2322442B (en) 1997-02-19 1997-02-19 A method of detecting the emission of infra-red radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9703399A GB2322442B (en) 1997-02-19 1997-02-19 A method of detecting the emission of infra-red radiation

Publications (3)

Publication Number Publication Date
GB9703399D0 GB9703399D0 (en) 1997-04-09
GB2322442A GB2322442A (en) 1998-08-26
GB2322442B true GB2322442B (en) 2000-12-06

Family

ID=10807912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9703399A Expired - Fee Related GB2322442B (en) 1997-02-19 1997-02-19 A method of detecting the emission of infra-red radiation

Country Status (1)

Country Link
GB (1) GB2322442B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7148482B2 (en) 2004-03-25 2006-12-12 Delphi Technologies, Inc. Multiple sensor thermal radiation detector and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1412784A (en) * 1971-12-20 1975-11-05 Barnes Eng Co Intrusion detector
GB1502349A (en) * 1974-05-27 1978-03-01 Leitz Ernst Gmbh Equipment for the monitoring of spaces by opto-electrical measuring means
GB2210453A (en) * 1987-09-26 1989-06-07 Matsushita Electric Works Ltd Personal body detecting device
US5012099A (en) * 1986-12-23 1991-04-30 U.S. Philips Corp. Intrusion detection and identification arrangement for land vehicles
US5055685A (en) * 1989-12-01 1991-10-08 Optex Co., Ltd. Infrared detecting apparatus
GB2285683A (en) * 1993-12-31 1995-07-19 Gold Star Co Partitioned infrared sensor array

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1412784A (en) * 1971-12-20 1975-11-05 Barnes Eng Co Intrusion detector
GB1502349A (en) * 1974-05-27 1978-03-01 Leitz Ernst Gmbh Equipment for the monitoring of spaces by opto-electrical measuring means
US5012099A (en) * 1986-12-23 1991-04-30 U.S. Philips Corp. Intrusion detection and identification arrangement for land vehicles
GB2210453A (en) * 1987-09-26 1989-06-07 Matsushita Electric Works Ltd Personal body detecting device
US5055685A (en) * 1989-12-01 1991-10-08 Optex Co., Ltd. Infrared detecting apparatus
GB2285683A (en) * 1993-12-31 1995-07-19 Gold Star Co Partitioned infrared sensor array

Also Published As

Publication number Publication date
GB2322442A (en) 1998-08-26
GB9703399D0 (en) 1997-04-09

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Legal Events

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

Effective date: 20050219