TWO-SPECTRAL OPTICAL SYSTEM Russian patent published in 2017 - IPC G01S3/78 G02B13/14 G02B27/10 

FIELD: physics.

SUBSTANCE: two-spectral optical system comprises a main concave aspheric mirror with a central hole, a secondary convex aspheric mirror, a spectrum divider, a thermal channel with the first, the second and the third lenses, and the photodetecting device and the radiation flux switching device, two television channels with the lens and the photodetectors in each of the channels, and an information controlling and processing device. The outputs of the photodetecting devices of the thermal and two television channels are connected to the inputs of the information controlling and processing device, and the radiation flux switching device, conjugated with the first, the second and the third lenses of the thermal channel, is connected to the control output of the information controlling and processing device. The third lens of the thermal channel and the lens of the second television channel are configured to smoothly change the focal distance.

EFFECT: increasing the informativeness of the two-spectral optical system due to the additional information on the observed scene in the continually changing view angle.

8 cl, 2 dwg