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

FIELD: physics.

SUBSTANCE: invention can be used for homing heads, electro-optical systems for detecting, identifying and automatic tracking, in particular, in the on-board equipment operating in several spectral ranges. System comprises the first channel and the second channel coaxial to the first one and installed in front of it. First channel comprises a main mirror, a secondary mirror (B3), reflecting spectral radiation Δλ₁=8–12.5, lensed aberration compensator (LAC) and a photo receiver of spectral range radiation Δλ₁. Second channel has a main mirror, B3, transmitting spectral radiation Δλ₂=0.4–0.7 mcm, LAC, installed in the central screening zone of the first channel, and a photo receiver of spectral range radiation Δλ₂. Spectral dividing coating is applied on a convex surface B3. LACs of both channels are made with positive linear increase β: 0.8<β<1.2.

EFFECT: increase of image quality, increase of aperture ratio of the second channel up to the aperture ratio of the first channel, providing athermality of both channels, design simplification, reduction of weight and overall dimensions.

5 cl, 1 dwg, 1 app