Method of producing a screening smoke with one-way transparency in the infrared spectrum
AssigneePepete GmbH
InventorsJosef Schneider, Ernst-Christian Koch, Axel Dochnahl
Life of this patent
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Abstract
The invention relates to a method of producing a screening smoke which is one-way transparent in the infrared spectrum (780 nm-14.0 μm) and opaque in the visible spectrum. According to the invention a known pyrotechnic screening smoke which is highly absorbent in the visible spectrum (380 nm-780 nm) is generated in the form of an aerosol, pyrotechnic scattered particles between 10 and 100 μm in size are simultaneously produced in said aerosol, and the resulting two-component smoke is irradiated by an infrared radiation source (spectrum: 780 nm-14.0 μm) from the smoke producer side.
Claims5
Process for the production of a smoke screen one-sidedly transparent in the infrared spectral range which is impermeable in the visible range characterised in that one
- a) produces a per se known pyrotechnic smoke screen strongly absorbing in the visual spectral range in the form of an aerosol and
- b) simultaneously introduces therein pyrotechnic scattered particles the size of which amounts to 10-100 μm and
- c) the two-component smoke is irradiated from the side of the smoke producer with an IR radiation source.
Dependencies are inferred from the claim text.