GB2470543A - Identification device - Google Patents

Identification device Download PDF

Info

Publication number
GB2470543A
GB2470543A GB1016801A GB201016801A GB2470543A GB 2470543 A GB2470543 A GB 2470543A GB 1016801 A GB1016801 A GB 1016801A GB 201016801 A GB201016801 A GB 201016801A GB 2470543 A GB2470543 A GB 2470543A
Authority
GB
United Kingdom
Prior art keywords
sheet
facets
thermal
identification device
reflective material
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.)
Granted
Application number
GB1016801A
Other versions
GB2470543B (en
GB201016801D0 (en
Inventor
Eoin Seiorse O'keefe
Adam Joseph Shohet
Martin Swan
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.)
Qinetiq Ltd
Original Assignee
Qinetiq 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 Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of GB201016801D0 publication Critical patent/GB201016801D0/en
Publication of GB2470543A publication Critical patent/GB2470543A/en
Application granted granted Critical
Publication of GB2470543B publication Critical patent/GB2470543B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H13/00—Means of attack or defence not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H3/00—Camouflage, i.e. means or methods for concealment or disguise
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/09—Multifaceted or polygonal mirrors, e.g. polygonal scanning mirrors; Fresnel mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/136—Reflex reflectors plural reflecting elements forming part of a unitary body

Abstract

A sheet of thermally reflective material (1) has a surface texture comprising a plurality of reflecting elements (2), wherein each element has a first facet (4) which is substantially reflective at thermal infrared wavelengths and wherein the respective first facets (4) form an angle θ with the plane of the sheet (A-B) (0° < θ < 90°). Preferably, the first facets (4) are aligned such that, in use, thermal radiation is reflected from a common direction. By orienting the sheet of thermally reflective material to reflect cold regions of the sky, a marking material exhibiting a cold spot in a thermal imager can be provided.
GB1016801.1A 2008-03-12 2009-03-05 Identification method Active GB2470543B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0804547.8A GB0804547D0 (en) 2008-03-12 2008-03-12 Identification device
PCT/GB2009/000614 WO2009112810A1 (en) 2008-03-12 2009-03-05 Identification device

Publications (3)

Publication Number Publication Date
GB201016801D0 GB201016801D0 (en) 2010-11-17
GB2470543A true GB2470543A (en) 2010-11-24
GB2470543B GB2470543B (en) 2012-07-04

Family

ID=39327947

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0804547.8A Ceased GB0804547D0 (en) 2008-03-12 2008-03-12 Identification device
GB1016801.1A Active GB2470543B (en) 2008-03-12 2009-03-05 Identification method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0804547.8A Ceased GB0804547D0 (en) 2008-03-12 2008-03-12 Identification device

Country Status (4)

Country Link
EP (2) EP3136142A1 (en)
AU (1) AU2009223982B2 (en)
GB (2) GB0804547D0 (en)
WO (1) WO2009112810A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0918720D0 (en) 2009-10-23 2009-12-09 Qinetiq Ltd Identification device
GB201117058D0 (en) 2011-10-04 2011-11-16 Qinetiq Ltd Infrared transparent film
IL217423A (en) * 2012-01-08 2016-12-29 Eltics Ltd Stealth window
WO2018215053A1 (en) * 2017-05-23 2018-11-29 Brainlab Ag Determining the relative position between a point cloud generating camera and another camera
EP3816646A1 (en) * 2019-10-28 2021-05-05 Koninklijke Philips N.V. Monitoring system with a camera and non-metallic mirror for magnetic resonance examination system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243200C1 (en) * 1992-12-19 1996-01-18 Dornier Gmbh Land vehicle friend-foe identification device
DE19710692A1 (en) * 1997-03-14 1998-09-17 Dornier Gmbh Process for IR camouflage and IR reflector
EP1102028A2 (en) * 1999-11-19 2001-05-23 DORNIER GmbH Infra-red camouflage system
EP1600727A2 (en) * 2004-05-26 2005-11-30 EADS Deutschland GmbH Device to conceal specular reflective surfaces
GB2440003A (en) * 2006-07-10 2008-01-16 Retainagroup Ltd Vehicle identification system consisting of a machine readable pattern on the vehicle and a imaging device to read the encoded pattern

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005110011A2 (en) 2003-10-21 2005-11-24 Tvi Corporation Marking system
GB2417033B (en) * 2004-08-13 2009-09-23 Qinetiq Ltd Identification device and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243200C1 (en) * 1992-12-19 1996-01-18 Dornier Gmbh Land vehicle friend-foe identification device
DE19710692A1 (en) * 1997-03-14 1998-09-17 Dornier Gmbh Process for IR camouflage and IR reflector
EP1102028A2 (en) * 1999-11-19 2001-05-23 DORNIER GmbH Infra-red camouflage system
EP1600727A2 (en) * 2004-05-26 2005-11-30 EADS Deutschland GmbH Device to conceal specular reflective surfaces
GB2440003A (en) * 2006-07-10 2008-01-16 Retainagroup Ltd Vehicle identification system consisting of a machine readable pattern on the vehicle and a imaging device to read the encoded pattern

Also Published As

Publication number Publication date
GB2470543B (en) 2012-07-04
AU2009223982A1 (en) 2009-09-17
GB0804547D0 (en) 2008-04-16
EP2265979A1 (en) 2010-12-29
EP3136142A1 (en) 2017-03-01
WO2009112810A1 (en) 2009-09-17
GB201016801D0 (en) 2010-11-17
EP2265979B1 (en) 2016-05-11
AU2009223982B2 (en) 2014-03-06

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Legal Events

Date Code Title Description
S73 Revocation on comptroller's initiative (section 73/patents act 1977)

Free format text: PATENT REVOKED; PATENT REVOKED UNDER SECTION 73(2) ON 23 MARCH 2018