초록 ▼

The invention relates to a method of producing a screening smoke which is one-way transparent in the infrared spectrum (780 nm-14.0 .mu.m) 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

The invention relates to a method of producing a screening smoke which is one-way transparent in the infrared spectrum (780 nm-14.0 .mu.m) 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 .mu.m 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 .mu.m) from the smoke producer side.

대표청구항 ▼

1. 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 onea) produces a per se known pyrotechnic smoke screen strongly absorbing in the visual spectral range in the form of an aerosol and

1. 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 onea) 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 .mu.m and c) the two-component smoke is irradiated from the side of the smoke producer with an IR radiation source.