FIELD: optics.
SUBSTANCE: two-spectral optical system can be used in wide-angle heat and television devices. Optical system contains a common input channel, a flat mirror with a dichroic coating reflecting the spectral range (0.6÷0.95) mcm and transmitting the spectral range (8÷13.5) mcm, and two optical channels for each of the spectral ranges. Common input channel contains a negative meniscus, and optical channel operating in spectral range (8.0÷13.5) mcm, is made of a two-component arrangement of the aperture diaphragm between the plane mirror and the first component, optical channel operating in the spectral range (0.6÷0.95) mcm, is made with a six-component arrangement of the aperture diaphragm between the fifth and sixth components.
EFFECT: increase aperture of television channel and reduce the number of optical components in the thermal imaging channel with the expansion of the angular field of view of both channels and with the preservation of high optical characteristics.
1 cl, 1 dwg, 1 tbl
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