TWO-CHANNEL MIRROR-LENS SYSTEM Russian patent published in 2017 - IPC G02B17/08 G02B23/04 

FIELD: physics.

SUBSTANCE: system can be used in two-spectral optoelectronic systems. The system consists of a radome along the ray way, a main concave mirror with the central hole in the form of a negative concave-convex lens with a reflective coating on the convex surface, the first channel containing the spectro-splitter, a compensator, the first lens of which is biconcave, the second lens is flat-convex, the third one is biconcave, and the first radiation receiver of the second channel containing the spectro-splitter and compensator, the first lens of which is made positive concave-convex, the second - negative concave-convex, and the third - positive concave-convex, and the second radiation detector. The spectrometer is a positive concave-convex lens with a dichroic coating on the convex surface, which is simultaneously the first lens of the second channel compensator and the secondary mirror of the first channel.

EFFECT: increasing the power capacity of the system by increasing the relative aperture in the far infrared spectral range while ensuring the compactness of the structure.

3 cl, 1 dwg, 3 tbl