AU8005191A - Thermal and visual camouflage - Google Patents
Thermal and visual camouflageInfo
- Publication number
- AU8005191A AU8005191A AU80051/91A AU8005191A AU8005191A AU 8005191 A AU8005191 A AU 8005191A AU 80051/91 A AU80051/91 A AU 80051/91A AU 8005191 A AU8005191 A AU 8005191A AU 8005191 A AU8005191 A AU 8005191A
- Authority
- AU
- Australia
- Prior art keywords
- pieces
- masking
- emission
- camouflage
- material pieces
- 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
Links
- 230000000007 visual effect Effects 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims description 55
- 230000000873 masking effect Effects 0.000 claims description 26
- 230000001788 irregular Effects 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 4
- 210000000744 eyelid Anatomy 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- -1 netting Substances 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 4
- 239000011888 foil Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F41H3/00—Camouflage, i.e. means or methods for concealment or disguise
- F41H3/02—Flexible, e.g. fabric covers, e.g. screens, nets characterised by their material or structure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Coating Apparatus (AREA)
- Laminated Bodies (AREA)
- Photovoltaic Devices (AREA)
- Inert Electrodes (AREA)
- Materials For Medical Uses (AREA)
Description
Thermal and Visual Camouflage
The present invention relates to means for creating thermal camouflage of irregular emission pattern as a supplement to camouflage within the visual and near infra-red region of the spectrum.
One object of the invention is to provide simple camou¬ flaging means which in addition to possessing good camouflage properties within the visual and near infra¬ red region will also provide satisfactory thermal camouflage protection, i.e. will have the ability to hide heat-radiating objects from discovery by thermo- cameras, or at least make such discovery difficult.
This object is achieved in accordance with the present invention in that said means consist of a supplementary kit which comprises material pieces of arbitrary config¬ uration intended for attachment in any desired pattern to existing masking material, such as a net, tarpaulin, covers and the like, said material pieces having an emission coefficient which differs substantially from the emission coefficient of the masking material, preferably by a coefficient difference of at least about 0.3. By dividing an existing masking material, which may consist of a net framework having attached thereto so-called garnishing material made, for in¬ stance, from leaf-cut, softened PVC-foil or the like having a high emission coefficient of 0.90 or higher for instance, into an irregular emission pattern, by attaching material pieces of low-emissivity over the highly emissive garnishi material, it is possible to achieve with the inventive camouflaging means effective masking of the radiation-emitting object within the visual, near infra-red and thermal region of the
radiation spectrum. This enables an existing camouflage net to be complemented, simply and inexpensively, in a manner to render discovery of the camouflaged object impossible, or to render such disclosure difficult, within the visual, near infra-red and thermal region with the use of thermocameras.
The material pieces are preferably in the form of laminates which comprise at least one internal, lowly- emissive metal layer, for instance an aluminium layer, whose outer surfaces exhibit a pigmented masking layer which is transparent to radiation within the thermal region, for instance polyethylene. The laminates may also include a reinforcing layer, so as to impart the requisite mechanical strength to said laminate.
The material pieces preferably have an irregular con- figuration and an area of about 1-2 m 2.
The material pieces are fastened onto existing masking or camouflage material, for instance a net, in a desired irregular pattern, with the aid of appropriate fasteners or by gluing or welding. In a manner conven¬ tional with masking-net garnishing material, the mate- rial pieces may be provided with so-called leaf-cuts or eyelid cuts, so as to give the material pieces a three dimensional, irregular pattern.
In order to obtain with the masking material an appropriate, thermally irregular pattern, the total area of the material pieces will preferably be about 30-40% of the total area of the masking material.
The invention also relates to masking material for camouflaging objects against detection within the
visual, near infra-red and thermal region, wherein a material body which includes visual and near infra-red camouflaging garnishing material is augmented with a plurality of material pieces which are attached in a desired pattern on the material body and which have any desired configuration and an emission coefficient which differs by at least about 0.3 from the emission coef¬ ficient of the remainder of the masking material. The masking material may comprise a net, a cloth, a tar- paulin, a cover or the like.
The invention will now be described in more detail with reference to the accompanying drawing, which illus¬ trates schematically a masking net onto which a plura- lity of material pieces have been attached for the purpose of masking objects against thermal radiation.
Shown in the drawing is a masking net 10 which com¬ prises a net framework, not shown in detail, on which conventional masking garnishing is attached to provide camouflage within the visual and near infra-red region. This garnishing may consist of pieces of fabric, strips or pieces of camouflage-pigmented foil material, for example PVC, having a relatively high emission coeffi- cients e >0.90.
In order to augment such conventional masking nets with camouflage which can also be used to camouflage within the thermal spectral region in order to render dif- ficult or impossible the discovery of heat-emitting objects covered by the net by means of ther ovision cameras, it is proposed in accordance with the present invention that- the existing masking net 10 is complemented with a set of material pieces 12 whose emission coefficient differs from the emission coeffi-
cient of the net. This difference in emission coeffi¬ cient could preferably be greater than about 0.3, so as to create an irregular, camouflaging emission pattern.
The material pieces 12 suitably consist of a laminate of one or more metal layers, a stiffening reinforcement and an outermost thermally transparent layer which exhibits a dull camouflage colour. The material pieces will preferably have an emission coefficient e of about 0.4-0.6.
The material pieces 12 have any desired and varying configuration and are attached to the net 10 by means of appropriate fasteners 14, in the pattern desired. In the illustrated embodiment, six material pieces 12 are fastened to the net 10 by means of a plurality of clamps 14, such that the material pieces 12 will cover an area equal to about 30-40% of the net area, so as to provide an appropriate masking effect against thermal radiation. Each material piece will preferably have an
2 area of from 1-2 m .
The material pieces may be leaf-cut and/or eyelid cut in a conventional manner, such as to obtain a three dimensionally irregular pattern of said material pieces.
Claims
1. Means for supplementing camouflage within the visual and near infra-red range with thermal camouflage having an irregular emission pattern, c h a r a c ¬ t e r i z e d in that said means comprises a supple¬ mentary set of material pieces (12) of desired con¬ figuration which are intended for attachment in a desired pattern to existing masking material (10) such as a net, cloth, tarpaulin, cover or the like, and in that the material pieces (12) have an emission co¬ efficient which differs substantially from the emission coefficient of the masking material (10) preferably by a coefficient difference of at least about 0.3.
2. Means according to Claim 1, c h a r a c ¬ t e r i z e d in that the material pieces (12) have a relatively low emission coefficient and are intended to be attached to masking material (10) of relatively high emission coefficient, or vice versa.
3. Means according to Claim 1 or 2, c h a r a c ¬ t e r i z e d in that the material pieces (12) have the form of a laminate which comprises at least one internal lowly-emissive metal layer and an outermost camouflage-pigmented layer which is thermally trans¬ parent.
4. Means according to any one of Claims 1-3, c h a r a c t e r i z e d in that the material pieces (12) are provided with so-called leaf-cuts and/or eyelid cuts so as to obtain a three di ensionally irregular pattern of material pieces.
5. Means according to any one of Claims 1-4, c h a r a c t e r i z e d in that the total area of the material pieces (12) is preferably equal to about 30-40% of the area of the masking material (10).
6. Masking material, such as netting, cloth, tarp¬ aulins, covers or the like constructed to camouflage within the visual, near infra-red and thermal region, comprising a material body provided with garnishing material which camouflages within the visual and infra¬ red region, c h a r a c t e r i z e d in that said material is provided with a plurality of material pieces (12) of desired configuration which are attached to said material body in a desired pattern, said mater¬ ial pieces (12) having an emission coefficient which differs by at least about 0.3 from the emission coeffi¬ cient of the remainder of the masking material, such as to provide an irregular emission pattern and therewith also a masking material which exhibits good thermal masking properties.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9002115 | 1990-06-14 | ||
| SE9002115A SE9002115L (en) | 1990-06-14 | 1990-06-14 | Means for camouflage |
| PCT/SE1991/000432 WO1991019950A1 (en) | 1990-06-14 | 1991-06-14 | Thermal and visual camouflage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU8005191A true AU8005191A (en) | 1992-01-07 |
| AU650021B2 AU650021B2 (en) | 1994-06-09 |
Family
ID=20379765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU80051/91A Ceased AU650021B2 (en) | 1990-06-14 | 1991-06-14 | Thermal and visual camouflage |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0533784A1 (en) |
| JP (1) | JPH05507789A (en) |
| AU (1) | AU650021B2 (en) |
| CA (1) | CA2083142A1 (en) |
| FI (1) | FI925367A0 (en) |
| NO (1) | NO176494C (en) |
| PT (1) | PT97972A (en) |
| SE (1) | SE9002115L (en) |
| WO (1) | WO1991019950A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6619180B1 (en) * | 2002-10-24 | 2003-09-16 | United Defense Lp | Tri-bar armor and signature reduction design |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE444979B (en) * | 1983-01-14 | 1986-05-20 | Diab Barracuda Ab | Thermal camouflage with high transmissivity on the outer layer in the areas 3-5 UM and 8-14 UM |
| US4465731A (en) * | 1983-06-27 | 1984-08-14 | Gunter Pusch | Universal camouflage for military objects |
-
1990
- 1990-06-14 SE SE9002115A patent/SE9002115L/en unknown
-
1991
- 1991-06-14 FI FI925367A patent/FI925367A0/en not_active Application Discontinuation
- 1991-06-14 CA CA002083142A patent/CA2083142A1/en not_active Abandoned
- 1991-06-14 WO PCT/SE1991/000432 patent/WO1991019950A1/en not_active Ceased
- 1991-06-14 PT PT97972A patent/PT97972A/en not_active Application Discontinuation
- 1991-06-14 EP EP91911372A patent/EP0533784A1/en not_active Ceased
- 1991-06-14 JP JP91510966A patent/JPH05507789A/en active Pending
- 1991-06-14 AU AU80051/91A patent/AU650021B2/en not_active Ceased
-
1992
- 1992-12-11 NO NO924813A patent/NO176494C/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1991019950A1 (en) | 1991-12-26 |
| NO924813L (en) | 1992-12-14 |
| NO924813D0 (en) | 1992-12-11 |
| SE9002115L (en) | 1991-12-15 |
| AU650021B2 (en) | 1994-06-09 |
| FI925367L (en) | 1992-11-26 |
| FI925367A7 (en) | 1992-11-26 |
| FI925367A0 (en) | 1992-11-26 |
| PT97972A (en) | 1993-08-31 |
| NO176494C (en) | 1995-04-19 |
| CA2083142A1 (en) | 1991-12-15 |
| EP0533784A1 (en) | 1993-03-31 |
| JPH05507789A (en) | 1993-11-04 |
| SE9002115D0 (en) | 1990-06-14 |
| NO176494B (en) | 1995-01-02 |
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