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

Definitions

• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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
• 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.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Coating Apparatus (AREA)
• Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
• Photovoltaic Devices (AREA)
• Inert Electrodes (AREA)
• Materials For Medical Uses (AREA)
• Laminated Bodies (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20379765

Family Applications (1)

Country Status (9)

Families Citing this family (1)

Family Cites Families (2)

• 1990
  • 1990-06-14 SE SE9002115A patent/SE9002115L/ unknown
• 1991
  • 1991-06-14 CA CA002083142A patent/CA2083142A1/en not_active Abandoned
  • 1991-06-14 WO PCT/SE1991/000432 patent/WO1991019950A1/en not_active Application Discontinuation
  • 1991-06-14 EP EP19910911372 patent/EP0533784A1/en not_active Ceased
  • 1991-06-14 JP JP91510966A patent/JPH05507789A/ja active Pending
  • 1991-06-14 PT PT9797291A patent/PT97972A/pt not_active Application Discontinuation
  • 1991-06-14 AU AU80051/91A patent/AU650021B2/en not_active Ceased
• 1992
  • 1992-11-26 FI FI925367A patent/FI925367A0/fi not_active Application Discontinuation
  • 1992-12-11 NO NO924813A patent/NO176494C/no unknown

Non-Patent Citations (1)

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