INCISED COMPOSITE MATERIAL FOR SELECTIVE, MULTISPECTRAL REFLECTION

Geometrically incised fabrics that control reflectance and transmission in the visible, thermal, nIR, SWIR, and microwave / millimeter bands of the electromagnetic spectrum are provided. The incised fabrics include incised flaps that move about a hinged attachment portion into open and closed config...

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Bibliographische Detailangaben
Hauptverfasser:	CULLER, GREGORY, D, WILLIAMS, NEIL, R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS ARMOUR ARMOURED OR ARMED VEHICLES ARMOURED TURRETS BASIC ELECTRIC ELEMENTS BLASTING ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Geometrically incised fabrics that control reflectance and transmission in the visible, thermal, nIR, SWIR, and microwave / millimeter bands of the electromagnetic spectrum are provided. The incised fabrics include incised flaps that move about a hinged attachment portion into open and closed configurations. The incised flaps may be oriented in patterns containing overlapping, inverted incised flaps, overlapping inverted and non- inverted incised flaps, or in block patterns of incised flaps. Selective transmission of electromagnetic waves can be modulated by the geometry of the incised flaps and the amount of tension applied to the incised fabric. The incised fabric includes a composite material including an asymmetric ePTFE laminate, a metalized layer, an ePTFE membrane layer, and a textile. A second ePTFE asymmetric laminate and a metal layer may be attached to the composite material to form a reversible composite. Incised fabrics may be used to form selective, multispectral reflective covers and garments. L'invention concerne des tissus incisés géométriquement qui régulent la réflectance et la transmission dans les bandes visibles, thermiques, nIR, SWIR et hyperfréquence/millimétriques du spectre électromagnétique. Les tissus incisés comprennent des rabats incisés qui se déplacent autour d'une partie de fixation articulée dans des configurations ouverte et fermée. Les rabats incisés peuvent être orientés selon des motifs contenant des rabats incisés inversés se chevauchant, des rabats incisés inversés et non inversés se chevauchant ou des motifs de blocs de rabats incisés. Une transmission sélective d'ondes électromagnétiques peut être modulée par la géométrie des rabats incisés et la quantité de tension appliquée au tissu incisé. Le tissu incisé comprend un matériau composite comprenant un stratifié d'ePTFE asymétrique, une couche métallisée, une couche de membrane d'ePTFE et un textile. Un second stratifié asymétrique d'ePTFE et une couche métallique peuvent être fixés sur le matériau composite pour former un composite réversible. Les tissus incisés peuvent être utilisés pour former des couvertures et vêtements réfléchissants multispectraux sélectifs.