Multispectral covert target marker

Details Multispectral covert target marker Multispectral covert target marker

1996-01-16

1997-08-26

Tudor, Harold J.

Ammunition and explosives

Smoke generating

102336, 102337, 102340, 102505, 102513, 42 115, 362110, 362800, F42B 1242, F42B 1248

Patent

active

056612575

ABSTRACT:
A covert, i.e., no visible light emitted, multispectral day
ight target marker is disclosed. The marker emits a signature detectable in the electromagnetic spectrum including visible, near infrared, middle and longwave infrared, and radar regions. The marker is particularly useful for marking of target areas so that they can be easily detected from the ground or the air. The visible spectrum is marked by a white or colored pyrotechnic smoke generant. The near infrared region is marked by near infrared emitting photodiodes encased in a hardened polymeric molding compound. These diodes are only visible through night vision devices (image intensifiers). The middle through the far infrared regions are marked by the heat generated from the combustion of the pyrotechnic smoke generant. The smoke generant is housed in a canister having a highly emissive surface. The radar region is marked using radar chaff. The target marker is configured for use with conventional mortar or rocket delivered flare systems. A hand held, rocket-propelled parachute signal is disclosed which includes near infrared emitting photodiodes and oscillator electronics assembly encased in a hardened polymeric molding compound launched from a hand-fired expendable-type launcher.

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