This disclosure relates to thermal electric images which may form Informational Images such as landing zone markers, drop zone markers, vehicle markers, road markers, covert signs, notices, directions and the like, and may also be used to form thermal targets which may be used as training aides for
This disclosure relates to thermal electric images which may form Informational Images such as landing zone markers, drop zone markers, vehicle markers, road markers, covert signs, notices, directions and the like, and may also be used to form thermal targets which may be used as training aides for weapons and other devices that are equipped with thermal imaging equipment.
대표청구항▼
1. A covert sign to display an informational thermal image comprising: a non-conductive underlying base material; multiple and different thermal image patterns formed on said non-conductive underlying base material, wherein said multiple and different thermal image patterns are formed of said at lea
1. A covert sign to display an informational thermal image comprising: a non-conductive underlying base material; multiple and different thermal image patterns formed on said non-conductive underlying base material, wherein said multiple and different thermal image patterns are formed of said at least one conductive ink; a source of electric power; wherein said multiple and different thermal image patterns may be selectively activated to change the informational thermal image, wherein each of said multiple and different thermal image patterns comprise a complete electric circuit when the source of electric power is connected thereto and when the source of electric power is connected, this allows a flow of electric current to said at least one conductive ink and forms said multiple and different thermal image patterns being supplied with electric currentand wherein said source of electric power has settings to adjust said flow of current to maximize visibility of said multiple and different thermal image patterns and compensate for variations in ambient temperature. 2. The covert sign as in claim 1 wherein said multiple and different thermal image patterns are layered or overlaid with visible patterns, and wherein said multiple and different thermal image patterns are different from the visual patterns so as to provide additional covert information or are the same as said visible patterns so that said multiple and different thermal image patterns and said visible patterns are viewed by a thermal imager or the naked eye. 3. The covert sign as in claim 1, wherein said non-conductive underlying base material is disposable. 4. The covert sign as in claim 1, wherein the flow of electric current is controlled by a device is selected from the group consisting of a choking source, a flow choke device, resistor-capacitors, a current limiter, current chopping circuits, DC-DC converters, and passive/active current limiting devices. 5. The covert sign as in claim 1 wherein the multiple and different thermal image patterns comprise at least one line or a plurality of continuous lines. 6. The covert sign of claim 5 in which electrical connections to said multiple and different thermal image patterns are established by contact points to which the source of electric power is connected. 7. The covert sign as in claim 1 wherein said at least one conductive ink is selected from the groups consisting of silver-doped ink and copper-doped ink. 8. The covert sign as in claim 1 wherein said non-conductive underlying base material selected from the group consisting of paper, cardboard, corrugated board, plastics, vinyl, and fiber board. 9. The covert sign as in claim 1 wherein said covert sign can be used as a training practice aide for weapons and other devices that are equipped with thermal imaging equipment. 10. The covert sign as in claim 1 wherein said multiple and different thermal image patterns further include a pattern formed of conductive media and wherein the conductive media is selected from the group consisting of conductive foil, metallic materials and conductive-doped materials. 11. The covert sign as in claim 5 wherein said covert sign is a thermal target used as a training practice aide for weapons and other devices that are equipped with thermal imaging equipment. 12. The covert sign as in claim 11 wherein said multiple and different thermal image patterns further include a pattern formed conductive media and wherein the conductive media is selected from the group consisting of conductive foil, metallic materials and conductive-doped materials. 13. The covert sign as in claim 1 wherein said covert sign is an informational sign used as a target. 14. The covert sign as in claim 5 wherein said covert sign is an informational sign used as a target. 15. A covert sign to display an informational thermal image comprising: a non-conductive underlying base material; multiple and different thermal image patterns formed on said non-conductive underlying base material, wherein said multiple and different thermal image patterns are formed of at least one conductive ink; wherein the at least one conductive ink is selected from the group consisting of silver-doped ink and copper-doped ink; and a source of electric power; wherein said multiple and different thermal image patterns may be selectively activated to change the informational thermal image, wherein each of said multiple and different thermal image patterns comprise a complete electric circuit when the source of electric power is connected thereto and when the source of electric power is connected, this allows a flow of electric current to said at least one conductive ink and forms said multiple and different thermal image patterns being supplied with electric current, and wherein said source of electric power has settings to adjust said flow of current to maximize visibility of said multiple and different thermal image patterns and compensate for variations in ambient temperature. 16. The covert sign as in claim 15 wherein the flow of electric current is controlled by a device selected from the group consisting of a choking source, a flow choke device, resistor-capacitors, a current limiter, current chopping circuits, DC-DC converters, and passive/active current limiting devices. 17. The covert sign as in claim 15 wherein said multiple and different thermal image patterns are layered or overlaid with visible patterns, and wherein said multiple and different thermal image patterns are different from the visual patterns so as to provide additional covert information or are the same as said visible patterns so that said multiple and different thermal image patterns and said visible patterns are viewed by a thermal imager or the naked eye. 18. The covert sign as in claim 15 wherein said covert sign is an informational sign used as a target. 19. A covert sign to display an informational thermal image comprising: a non-conductive underlying base material; multiple and different thermal image patterns formed on said non-conductive underlying base material, wherein said multiple and different thermal image patterns are formed of conductive media, wherein the conductive media is selected from the group consisting of conductive foil, metallic materials and conductive-doped materials, and a source of electric power; wherein said multiple and different thermal image patterns may be selectively activated to change the informational thermal image, wherein each of said multiple and different thermal image patterns comprise a complete electric circuit when the source of electric power is connected thereto and when the source of electric power is connected, this allows a flow of electric current to said conductive media and forms said multiple and different thermal image patterns being supplied with electric current, and wherein said source of electric power has settings to adjust said flow of current to maximize visibility of said multiple and different thermal image patterns and compensate for variations in ambient temperature. 20. The covert sign as in claim 19 wherein said covert sign is an informational sign used as a target.
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이 특허에 인용된 특허 (46)
Feagle Hugh B. (Leeds AL), Airborne target for generating an exhaust plume simulating that of a jet powered aircraft.
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