Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1998-12-21
2000-10-03
Jones, Deborah
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428 17, 428207, 428212, 428919, 8478, B32B 300
Patent
active
061270229
DESCRIPTION:
BRIEF SUMMARY
THIS INVENTION relates to vision deception. More particularly, the invention relates to vision deception by means of camouflage, the invention providing a camouflage surface and a method of camouflaging, suitable for camouflaging a person, such as a hunter, or such person's vehicle from herbivorous prey being hunted, and a camouflage pattern suitable for use, in accordance with the method on such vehicle, hunter's clothing, or the like.
By the term camouflaging, as used herein, is meant the technique whereby a pattern made up of two or more colours, ie two or more hues or two or more nuances of the same hue but having different reflectances, typically three, which contrast with each other or with one another, is used to deceive the eye of an observer by promoting concealment of a person or object to be camouflaged, by encouraging the eye of the observer to follow hues forming part of the pattern, rather than to follow the outline of the person or object, or the outlines of parts thereof, which outline or outlines act as visual cues for the optical recognition of the person or object by the observer. Different hues have spectral reflectance curves of different shapes, while different nuances of the same hue have spectral reflectance curves of the same shape but of different reflectances.
Camouflaging is often employed for military concealment or deception purposes, eg to camouflage persons via their clothing or uniforms, or to camouflage vehicles, tents or the like. The shapes and/or outlines of suitable camouflage patterns for military use have been well established for military purposes, being made up of contrasting areas in the form of strips, patches or other zones of contrasting colours, of more or less irregular- and non-repeating outlines, which outlines are usually curved. The colours, such as khaki or olive-green drab are selected, as are the patterns, to blend in, to a human observer, with the colours and shapes prevalent in the background against which the camouflage is expected to be viewed. Generally, account is taken of the distance at which the camouflage is expected to be seen, the areas forming the pattern being relatively smaller if the camouflage is expected to be seen from shorter distances, and relatively larger if the camouflage is expected to be seen from longer distances, so that the areas can be distinguished from each other or one another. Furthermore the areas must be sufficiently small, relative to the total camouflaged surface, for the repeating nature of the pattern to be apparent, and for the outlines of the areas of the pattern, between contrasting areas thereof, to be able to compete successfully with the outline of the camouflaged surface i.e. camouflaged person or object or part thereof, for the attention of the eye.
In accordance with one aspect of the invention there is provided a camouflage surface for concealment from, and deception of, a herbivorous animal, which surface comprises a camouflage pattern made up of at least two different sets of areas which reflect electromagnetic radiation at wavelengths in the near-infra-red range or zone of the electromagnetic spectrum, all the areas of each set reflecting said near-infra-red radiation in the same fashion as one another and in a fashion different from the fashion in which the areas of each other set reflect said radiation, the different sets of areas all having, in said near-infra-red range, spectral reflection curves having reflectance maxima at wavelengths of above 680 nm, each spectral reflectance curve which the surface has in the visible light range of the electromagnetic spectrum being without a reflectance maximum in the wavelength range of 480-680 nm and each said spectral reflectance curve which the surface has in said visible light range having a reflectance maximum at a wavelength below 480 nm.
The pattern will not be apparent to the human eye, which cannot see in the near-infra-red range of the electromagnetic spectrum, but will be apparent to the eye of a herbivore, particularly a mammalian herbivore such
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Boss Wendy
Finstruct (Proprietary) Limited
Jones Deborah
LandOfFree
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